{
    "uniprot_canonical_ac": "Q11205-1",
    "uniprot_ac": "Q11205",
    "uniprot_id": "SIA4B_RAT",
    "mass": {
        "chemical_mass": 40166.0,
        "monoisotopic_mass": 40166.0
    },
    "refseq": {
        "ac": "NP_113883",
        "name": "CMP-N-acetylneuraminate-beta-galactosamide- alpha-2,3-sialyltransferase 2",
        "summary": "",
        "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883"
    },
    "gene_names": [
        {
            "name": "St3gal2",
            "resource": "UniProtKB",
            "type": "recommended",
            "url": "https://www.uniprot.org/uniprot/Q11205",
            "id": "Q11205"
        },
        {
            "name": "Siat4b; Siat5",
            "resource": "RefSeq",
            "type": "synonym",
            "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883",
            "id": "NP_113883"
        },
        {
            "name": "Siat4b",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "https://www.uniprot.org/uniprot/Q11205",
            "id": "Q11205"
        },
        {
            "name": "Siat5",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "https://www.uniprot.org/uniprot/Q11205",
            "id": "Q11205"
        },
        {
            "name": "St3gal2",
            "resource": "RefSeq",
            "type": "synonym",
            "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883",
            "id": "NP_113883"
        }
    ],
    "protein_names": [
        {
            "name": "CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 2",
            "resource": "UniProtKB",
            "type": "recommended",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "2.4.3.2",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "2.4.3.4",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "Alpha 2,3-ST 2",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "Beta-galactoside alpha-2,3-sialyltransferase 2",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "CMP-N-acetylneuraminate-beta-galactosamide- alpha-2,3-sialyltransferase 2",
            "resource": "RefSeq",
            "type": "synonym",
            "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883",
            "id": "NP_113883"
        },
        {
            "name": "Gal-NAc6S",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "Gal-beta-1,3-GalNAc-alpha-2,3-sialyltransferase",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "Monosialoganglioside sialyltransferase",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "SIAT4-B",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "ST3Gal II",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "ST3GalA.2",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "ST3GalII",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "Sialyltransferase 4B",
            "resource": "UniProtKB",
            "type": "synonym",
            "url": "",
            "id": "Q11205"
        },
        {
            "name": "monosialoganglioside sialyltransferase; SIAT4-B; ST3GALA.2; ST3Gal II; gal-NAc6S; gal-beta-1,3-GalNAc-alpha-2,3-sialyltransferase; ST3GalII; alpha 2,3-ST 2; beta-galactoside alpha-2,3-sialyltransferase 2; sialyltransferase 5; sialyltransferase 4B (beta-galactoside alpha-2,3-sialyltransferase)",
            "resource": "RefSeq",
            "type": "synonym",
            "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883",
            "id": "NP_113883"
        }
    ],
    "function": [
        {
            "annotation": "A beta-galactoside alpha2-3 sialyltransferase primarily involved in terminal sialylation of ganglio and globo series glycolipids (PubMed:8144500). Catalyzes the transfer of sialic acid (N-acetyl-neuraminic acid; Neu5Ac) from the nucleotide sugar donor CMP-Neu5Ac onto acceptor Galbeta-(1->3)-GalNAc-terminated glycoconjugates through an alpha2-3 linkage. Sialylates GM1/GM1a, GA1/asialo-GM1 gangliosides to form GD1a and GM1b, respectively (PubMed:8144500). Together with ST3GAL3, primarily responsible for biosynthesis of brain gangliosides that function as ligand for myelin-associated glycoprotein MAG on axons, regulating MAG expression and axonal myelin stability and regeneration (By similarity). Responsible for the sialylation of the pluripotent stem cell- and cancer stem cell-associated antigen SSEA3, forming SSEA4 (By similarity). Sialylates with low efficiency asialofetuin, presumably onto O-glycosidically linked Galbeta-(1->3)-GalNAc-O-Ser (PubMed:8144500).",
            "evidence": [
                {
                    "database": "UniProtKB",
                    "id": "Q11205",
                    "url": "https://www.uniprot.org/uniprot/Q11205#function"
                },
                {
                    "database": "UniProtKB",
                    "id": "Q11204",
                    "url": "https://www.uniprot.org/uniprot/Q11204#function"
                },
                {
                    "database": "PubMed",
                    "id": "8144500",
                    "url": "https://glygen.org/publication/PubMed/8144500"
                },
                {
                    "database": "UniProtKB",
                    "id": "Q16842",
                    "url": "https://www.uniprot.org/uniprot/Q16842#function"
                }
            ]
        },
        {
            "annotation": "Use of sialyl mucin core 2 compounds shows how ST3Gal-II exchanges sialyl residues between CMP-NeuAc and the NeuAcalpha2,3Galbeta1,3GalNAc unit, while also radiolabeling sialyl residues in gangliosides GD1a and GT1b, but not GM1.",
            "evidence": [
                {
                    "database": "RefSeq",
                    "id": "NP_113883",
                    "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883"
                },
                {
                    "database": "PubMed",
                    "id": "21913655",
                    "url": "https://glygen.org/publication/PubMed/21913655"
                }
            ]
        }
    ],
    "disease": [],
    "snv": [],
    "mutagenesis": [],
    "expression_tissue": [],
    "expression_disease": [],
    "species": [
        {
            "name": "Rattus norvegicus",
            "taxid": 10116,
            "evidence": [
                {
                    "database": "UniProtKB",
                    "id": "Q11205",
                    "url": "https://www.uniprot.org/uniprot/Q11205"
                }
            ],
            "common_name": "Rat"
        }
    ],
    "gene": [
        {
            "name": "St3gal2",
            "url": "https://www.uniprot.org/uniprot/Q11205",
            "locus": {
                "chromosome": "19",
                "start_pos": 38939869,
                "end_pos": 38923999,
                "strand": "-",
                "evidence": [
                    {
                        "database": "Ensembl Gene",
                        "id": "ENSRNOG00000017932",
                        "url": "https://www.ensembl.org/id/ENSRNOG00000017932"
                    }
                ]
            }
        }
    ],
    "crossref": [
        {
            "id": "ENSRNOG00000017932",
            "url": "https://bgee.org/?page=gene&gene_id=ENSRNOG00000017932",
            "database": "Bgee",
            "categories": [
                "Gene Expression"
            ]
        },
        {
            "id": "2.4.99.4",
            "url": "https://www.brenda-enzymes.org/enzyme.php?ecno=2.4.99.4&UniProtAcc=Q11205",
            "database": "BRENDA",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "GT29",
            "url": "http://www.cazy.org/GT29.html",
            "database": "CAZy",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "CHEMBL3638362",
            "url": "https://www.ebi.ac.uk/chembldb/target/inspect/CHEMBL3638362",
            "database": "ChEMBL",
            "categories": [
                "Other"
            ]
        },
        {
            "id": "64442",
            "url": "https://www.ncbi.nlm.nih.gov/gene/64442",
            "database": "GeneID",
            "categories": [
                "Genome Annotation"
            ]
        },
        {
            "id": "IPR001675",
            "url": "https://www.ebi.ac.uk/interpro/entry/IPR001675",
            "database": "InterPro",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "IPR012163",
            "url": "https://www.ebi.ac.uk/interpro/entry/IPR012163",
            "database": "InterPro",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "IPR038578",
            "url": "https://www.ebi.ac.uk/interpro/entry/IPR038578",
            "database": "InterPro",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "rno:64442",
            "url": "https://www.genome.jp/dbget-bin/get_linkdb?-t+pathway+rno:64442",
            "database": "KEGG Pathway",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "ISPVWTK",
            "url": "https://omabrowser.org/oma/group/ISPVWTK/",
            "database": "OMA",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "5348004at2759",
            "url": "http://www.orthodb.org/?query=5348004at2759",
            "database": "OrthoDB",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "PTHR46032",
            "url": "http://www.pantherdb.org/panther/family.do?clsAccession=PTHR46032",
            "database": "PANTHER",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "PTHR46032:SF4",
            "url": "http://www.pantherdb.org/panther/family.do?clsAccession=PTHR46032:SF4",
            "database": "PANTHER",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "PF00777",
            "url": "http://pfam.xfam.org/family/PF00777",
            "database": "Pfam",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "PR_Q11205",
            "url": "http://purl.obolibrary.org/obo/PR_Q11205",
            "database": "PRO",
            "categories": [
                "Protein"
            ]
        },
        {
            "id": "R-RNO-2022854",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-2022854",
            "database": "Reactome",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "R-RNO-4085001",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-4085001",
            "database": "Reactome",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "R-RNO-977068",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-977068",
            "database": "Reactome",
            "categories": [
                "Protein Classification"
            ]
        },
        {
            "id": "NP_113883",
            "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883",
            "database": "RefSeq",
            "categories": [
                "Protein"
            ]
        },
        {
            "id": "68413",
            "url": "http://rgd.mcw.edu/tools/genes/genes_view.cgi?id=68413",
            "database": "RGD",
            "categories": [
                "Organism-specific"
            ]
        },
        {
            "id": "18021",
            "url": "https://www.rhea-db.org/rhea/18021",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "21616",
            "url": "https://www.rhea-db.org/rhea/21616",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "47560",
            "url": "https://www.rhea-db.org/rhea/47560",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "48244",
            "url": "https://www.rhea-db.org/rhea/48244",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "48248",
            "url": "https://www.rhea-db.org/rhea/48248",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "65372",
            "url": "https://www.rhea-db.org/rhea/65372",
            "database": "Rhea",
            "categories": [
                "Enzyme and Pathway"
            ]
        },
        {
            "id": "G3V8B2",
            "url": "https://www.uniprot.org/uniprot/G3V8B2",
            "database": "UniProtKB",
            "categories": [
                "Protein"
            ]
        },
        {
            "id": "G3V8B2-1",
            "url": "https://www.uniprot.org/uniprot/G3V8B2-1",
            "database": "UniProtKB",
            "categories": [
                "Protein"
            ]
        },
        {
            "id": "Q11205",
            "url": "https://www.uniprot.org/uniprot/Q11205",
            "database": "UniProtKB",
            "categories": [
                "Protein"
            ]
        },
        {
            "id": "Q11205-1",
            "url": "https://www.uniprot.org/uniprot/Q11205-1",
            "database": "UniProtKB",
            "categories": [
                "Protein"
            ]
        }
    ],
    "sequence": {
        "sequence": "MKCSLRVWFLSMAFLLVFIMSLLFTYSHHSMATLPYLDSGTLGGTHRVKLVPGYTGQQRLVKEGLSGKSCTCSRCMGDAGTSEWFDSHFDSNISPVWTRDNMNLTPDVQRWWMMLQPQFKSHNTNEVLEKLFQIVPGENPYRFRDPQQCRRCAVVGNSGNLRGSGYGQEVDSHNFIMRMNQAPTVGFEKDVGSRTTHHFMYPESAKNLPANVSFVLVPFKALDLMWIASALSTGQIRFTYAPVKSFLRVDKEKVQIYNPAFFKYIHDRWTEHHGRYPSTGMLVLFFALHVCDEVNVYGFGADSRGNWHHYWENNRYAGEFRKTGVHDADFEAHIIDILAKASKIEVYRGN",
        "length": 350,
        "header": "sp|Q11205-1|SIA4B_RAT Isoform 1 of CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 2  OS=Rattus norvegicus OX=10116 GN=St3gal2 PE=1 SV=1 CANONICAL=Q11205-1"
    },
    "isoforms": [
        {
            "isoform_ac": "G3V8B2-1",
            "url": "",
            "sequence": {
                "sequence": "MKCSLRVWFLSMAFLLVFIMSLLFTYSHHSMATLPYLDSGTLGGTHRVKLVPGYTGQQRLVKEGLSGKSCTCSRCMGDAGTSEWFDSHFDSNISPVWTRDNMNLTPDVQRWWMMLQPQFKSHNTNEVLEKLFQIVPGENPYRFRDPQQCRRCAVVGNSGNLRGSGYGQEVDSHNFIMRMNQAPTVGFEKDVGSRTTHHFMYPESAKNLPANVSFVLVPFKALDLMWIASALSTGQIRFTYAPVKSFLRVDKEKVQIYNPAFFKYIHDRWTEHHGRYPSTGMLVLFFALHVCDEVNVYGFGADSRGNWHHYWENNRYAGEFRKTGVHDADFEAHIIDMLAKASKIEVYRGN",
                "length": 350,
                "header": "tr|G3V8B2-1|G3V8B2_RAT Computationally mapped isoform of ST3 beta-galactoside alpha-2,3-sialyltransferase 2  OS=Rattus norvegicus OX=10116 GN=St3gal2 PE=3 SV=1 CANONICAL=Q11205-1"
            },
            "locus": {
                "chromosome": "19",
                "start_pos": 38937766,
                "end_pos": 38924067,
                "strand": "-",
                "evidence": [
                    {
                        "database": "Ensembl Transcript",
                        "id": "ENSRNOT00000024248.4",
                        "url": "https://www.ensembl.org/id/ENSRNOT00000024248.4"
                    },
                    {
                        "database": "Ensembl Peptide",
                        "id": "ENSRNOP00000024248.2",
                        "url": "https://www.ensembl.org/id/ENSRNOP00000024248.2"
                    }
                ]
            }
        },
        {
            "isoform_ac": "Q11205-1",
            "url": "",
            "sequence": {
                "sequence": "MKCSLRVWFLSMAFLLVFIMSLLFTYSHHSMATLPYLDSGTLGGTHRVKLVPGYTGQQRLVKEGLSGKSCTCSRCMGDAGTSEWFDSHFDSNISPVWTRDNMNLTPDVQRWWMMLQPQFKSHNTNEVLEKLFQIVPGENPYRFRDPQQCRRCAVVGNSGNLRGSGYGQEVDSHNFIMRMNQAPTVGFEKDVGSRTTHHFMYPESAKNLPANVSFVLVPFKALDLMWIASALSTGQIRFTYAPVKSFLRVDKEKVQIYNPAFFKYIHDRWTEHHGRYPSTGMLVLFFALHVCDEVNVYGFGADSRGNWHHYWENNRYAGEFRKTGVHDADFEAHIIDILAKASKIEVYRGN",
                "length": 350,
                "header": "sp|Q11205-1|SIA4B_RAT Isoform 1 of CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 2  OS=Rattus norvegicus OX=10116 GN=St3gal2 PE=1 SV=1 CANONICAL=Q11205-1"
            },
            "locus": {}
        }
    ],
    "glycosylation": [
        {
            "glytoucan_ac": "",
            "type": "N-linked",
            "subtype": "",
            "site_category": "predicted",
            "site_seq": "N",
            "relation": "attached",
            "comment": "N-linked (GlcNAc...) asparagine",
            "start_pos": 211,
            "start_aa": "Asn",
            "end_pos": 211,
            "end_aa": "Asn",
            "residue": "Asn",
            "site_lbl": "Asn211",
            "evidence": [
                {
                    "id": "Q11205",
                    "database": "UniProtKB",
                    "url": "https://www.uniprot.org/uniprot/Q11205#ptm_processing"
                }
            ]
        }
    ],
    "phosphorylation": [],
    "glycation": [],
    "keywords": [
        "enzyme",
        "glycosyltransferase-activity",
        "glycoprotein",
        "glycoprotein_predicted"
    ],
    "publication": [
        {
            "title": "Mammalian sialyltransferase ST3Gal-II: its exchange sialylation catalytic properties allow labeling of sialyl residues in mucin-type sialylated glycoproteins and specific gangliosides.",
            "journal": "Biochemistry",
            "date": "2011",
            "authors": "Chandrasekaran EV, Xue J, Xia J, Locke RD, Patil SA, Neelamegham S, Matta KL",
            "evidence": [
                {
                    "database": "RefSeq",
                    "id": "NP_113883",
                    "url": "https://www.ncbi.nlm.nih.gov/protein/NP_113883"
                }
            ],
            "reference": [
                {
                    "type": "PubMed",
                    "id": "21913655",
                    "url": "https://glygen.org/publication/PubMed/21913655"
                }
            ]
        },
        {
            "title": "Cloning and expression of cDNA for a new type of Gal beta 1,3GalNAc alpha 2,3-sialyltransferase.",
            "journal": "J. Biol. Chem.",
            "date": "1994",
            "authors": "Lee YC, Kojima N, Wada E, Kurosawa N, Nakaoka T, Hamamoto T, Tsuji S",
            "evidence": [
                {
                    "database": "UniProtKB",
                    "id": "Q11205",
                    "url": "https://www.uniprot.org/uniprot/Q11205"
                }
            ],
            "reference": [
                {
                    "type": "PubMed",
                    "id": "8144500",
                    "url": "https://glygen.org/publication/PubMed/8144500"
                }
            ]
        }
    ],
    "pathway": [
        {
            "id": "rno:64442",
            "name": "",
            "url": "https://www.genome.jp/dbget-bin/get_linkdb?-t+pathway+rno:64442",
            "resource": "KEGG Pathway"
        },
        {
            "id": "R-RNO-2022854",
            "name": "Keratan sulfate biosynthesis",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-2022854",
            "resource": "Reactome",
            "description": "Keratan sulfate biosynthesis"
        },
        {
            "id": "R-RNO-4085001",
            "name": "Sialic acid metabolism",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-4085001",
            "resource": "Reactome",
            "description": "Sialic acid metabolism"
        },
        {
            "id": "R-RNO-977068",
            "name": "Termination of O-glycan biosynthesis",
            "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-977068",
            "resource": "Reactome",
            "description": "Termination of O-glycan biosynthesis"
        }
    ],
    "orthologs": [
        {
            "uniprot_canonical_ac": "Q11204-1",
            "protein_name": "CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 2",
            "gene_name": "St3gal2",
            "tax_id": 10090,
            "organism": "Mus musculus",
            "sequence": {
                "sequence": "MKCSLRVWFLSMAFLLVFIMSLLFTYSHHSMATLPYLDSGALGGTHRVKLVPGYSGLQRLGKEGLLGRNCACSRCMGDASTSEWFDSHFDGNISPVWTRDNMNLPPDVQRWWMMLQPQFKSHNTNEVLEKLFQIVPGENPYRFRDPQQCRRCAVVGNSGNLRGSGYGQEVDSHNFIMRMNQAPTVGFEKDVGSRTTHHFMYPESAKNLPANVSFVLVPFKALDLMWIASALSTGQIRFTYAPVKSFLRVDKEKVQIYNPAFFKYIHDRWTEHHGRYPSTGMLVLFFALHVCDEVNVYGFGADSRGNWHHYWENNRYAGEFRKTGVHDADFEAHIIDMLAKASKIEVYRGN",
                "length": 350
            },
            "evidence": [
                {
                    "id": "45228008",
                    "url": "http://www.informatics.jax.org/homology/45228008",
                    "database": "MGI"
                }
            ],
            "common_name": "Mouse"
        },
        {
            "uniprot_canonical_ac": "Q16842-1",
            "protein_name": "CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 2",
            "gene_name": "ST3GAL2",
            "tax_id": 9606,
            "organism": "Homo sapiens",
            "sequence": {
                "sequence": "MKCSLRVWFLSVAFLLVFIMSLLFTYSHHSMATLPYLDSGALDGTHRVKLVPGYAGLQRLSKERLSGKSCACRRCMGDAGASDWFDSHFDGNISPVWTRENMDLPPDVQRWWMMLQPQFKSHNTNEVLEKLFQIVPGENPYRFRDPHQCRRCAVVGNSGNLRGSGYGQDVDGHNFIMRMNQAPTVGFEQDVGSRTTHHFMYPESAKNLPANVSFVLVPFKVLDLLWIASALSTGQIRFTYAPVKSFLRVDKEKVQIYNPAFFKYIHDRWTEHHGRYPSTGMLVLFFALHVCDEVNVYGFGADSRGNWHHYWENNRYAGEFRKTGVHDADFEAHIIDMLAKASKIEVYRGN",
                "length": 350
            },
            "evidence": [
                {
                    "id": "45228008",
                    "url": "http://www.informatics.jax.org/homology/45228008",
                    "database": "MGI"
                }
            ],
            "common_name": "Human"
        }
    ],
    "go_annotation": {
        "categories": [
            {
                "name": "Cellular Component",
                "total": 4,
                "go_terms": [
                    {
                        "name": "Golgi membrane",
                        "id": "GO:0000139",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0000139",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "extracellular region",
                        "id": "GO:0005576",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0005576",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "membrane",
                        "id": "GO:0016020",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0016020",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "Golgi cisterna membrane",
                        "id": "GO:0032580",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0032580",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    }
                ]
            },
            {
                "name": "Biological Process",
                "total": 9,
                "go_terms": [
                    {
                        "name": "protein glycosylation",
                        "id": "GO:0006486",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0006486",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "glycoprotein biosynthetic process",
                        "id": "GO:0009101",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0009101",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "glycolipid biosynthetic process",
                        "id": "GO:0009247",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0009247",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "lipid glycosylation",
                        "id": "GO:0030259",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0030259",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "oligosaccharide biosynthetic process",
                        "id": "GO:0009312",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0009312",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "sialylation",
                        "id": "GO:0097503",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0097503",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "protein sialylation",
                        "id": "GO:1990743",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:1990743",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "globoside biosynthetic process via lactosylceramide",
                        "id": "GO:0010707",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0010707",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "ganglioside biosynthetic process via lactosylceramide",
                        "id": "GO:0010706",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0010706",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    }
                ]
            },
            {
                "name": "Molecular Function",
                "total": 4,
                "go_terms": [
                    {
                        "name": "protein homodimerization activity",
                        "id": "GO:0042803",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0042803",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "sialyltransferase activity",
                        "id": "GO:0008373",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0008373",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "beta-D-galactosyl-(1->3)-N-acetyl-beta-D-galactosaminide alpha-2,3- sialyltransferase",
                        "id": "GO:0047288",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0047288",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    },
                    {
                        "name": "beta-galactoside (CMP) alpha-2,3-sialyltransferase activity",
                        "id": "GO:0003836",
                        "url": "https://www.ebi.ac.uk/QuickGO/term/GO:0003836",
                        "evidence": [
                            {
                                "database": "UniProtKB",
                                "id": "Q11205",
                                "url": "https://www.uniprot.org/uniprot/Q11205"
                            }
                        ],
                        "pmid": ""
                    }
                ]
            }
        ]
    },
    "pro_annotation": [],
    "site_annotation": [
        {
            "start_pos": 103,
            "end_pos": 105,
            "annotation": "n_glycosylation_sequon"
        },
        {
            "start_pos": 211,
            "end_pos": 213,
            "annotation": "n_glycosylation_sequon"
        },
        {
            "start_pos": 92,
            "end_pos": 94,
            "annotation": "n_glycosylation_sequon"
        }
    ],
    "ptm_annotation": [
        {
            "annotation": "N-glycosylated; necessary for proper exit from endoplasmic reticulum and trafficking to the Golgi apparatus.",
            "evidence": [
                {
                    "database": "UniProtKB",
                    "id": "Q11205",
                    "url": "https://www.uniprot.org/uniprot/Q11205"
                },
                {
                    "database": "PubMed",
                    "id": "Q16842",
                    "url": "https://glygen.org/publication/PubMed/Q16842"
                }
            ]
        }
    ],
    "interactions": [],
    "reactions": [
        {
            "id": "18021",
            "name": "",
            "equation": "CMP-N-acetyl-beta-neuraminate + ganglioside GM1 (d18:1(4E)) = CMP + ganglioside GD1a (d18:1(4E)) + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "P61131-1",
                "Q16842-1",
                "Q11201-1",
                "Q11206-1",
                "Q91Y74-1",
                "P54751-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "18021",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/18021"
                }
            ]
        },
        {
            "id": "21616",
            "name": "",
            "equation": "a beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP-N-acetyl-beta-neuraminate = an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "P61131-1",
                "Q16842-1",
                "Q11201-1",
                "Q11206-1",
                "Q91Y74-1",
                "P54751-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "21616",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/21616"
                }
            ]
        },
        {
            "id": "47560",
            "name": "",
            "equation": "CMP-N-acetyl-beta-neuraminate + ganglioside GA1 (d18:1(4E)) = CMP + ganglioside GM1b (d18:1(4E)) + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "P61131-1",
                "Q11201-1",
                "Q16842-1",
                "Q11206-1",
                "P54751-1",
                "Q91Y74-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "47560",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/47560"
                }
            ]
        },
        {
            "id": "48244",
            "name": "",
            "equation": "CMP-N-acetyl-beta-neuraminate + ganglioside GA1 = CMP + ganglioside GM1b + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "Q11201-1",
                "Q16842-1",
                "P54751-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "48244",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/48244"
                }
            ]
        },
        {
            "id": "48248",
            "name": "",
            "equation": "CMP-N-acetyl-beta-neuraminate + ganglioside GM1 (d18:1(4E)/18:0) = CMP + ganglioside GD1a (18:1(4E)/18:0) + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "Q11201-1",
                "Q16842-1",
                "P54751-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "48248",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/48248"
                }
            ]
        },
        {
            "id": "65372",
            "name": "",
            "equation": "CMP-N-acetyl-beta-neuraminate + globoside GalGb4Cer = CMP + globoside MSGG + H(+)",
            "summary": "",
            "cellular_location": "",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "Q11205-1",
                "Q16842-1",
                "Q11204-1"
            ],
            "evidence": [
                {
                    "id": "65372",
                    "database": "Rhea",
                    "url": "https://www.rhea-db.org/rhea/65372"
                }
            ]
        },
        {
            "id": "R-RNO-2046285",
            "name": "The keratan chain can be capped by N-acetylneuraminic acid",
            "equation": "",
            "summary": "This event has been computationally inferred from an event that has been demonstrated in another species.<p>The inference is based on the homology mapping from PANTHER. Briefly, reactions for which all involved PhysicalEntities (in input, output and catalyst) have a mapped orthologue/paralogue (for complexes at least 75% of components must have a mapping) are inferred to the other species. High level events are also inferred for these events to allow for easier navigation.<p><a href='/electronic_inference_compara.html' target = 'NEW'>More details and caveats of the event inference in Reactome.</a> For details on PANTHER see also: <a href='http://www.pantherdb.org/about.jsp' target='NEW'>http://www.pantherdb.org/about.jsp</a>",
            "cellular_location": "Golgi lumen, Golgi membrane",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "P61131-1",
                "P61943-1",
                "Q02734-1",
                "Q11205-1"
            ],
            "evidence": [
                {
                    "id": "R-RNO-2046285",
                    "database": "Reactome",
                    "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-2046285"
                }
            ]
        },
        {
            "id": "R-RNO-4084984",
            "name": "ST3GAL1-6 transfer Neu5Ac to terminal Gal (alpha-2,3 link)",
            "equation": "",
            "summary": "This event has been computationally inferred from an event that has been demonstrated in another species.<p>The inference is based on the homology mapping from PANTHER. Briefly, reactions for which all involved PhysicalEntities (in input, output and catalyst) have a mapped orthologue/paralogue (for complexes at least 75% of components must have a mapping) are inferred to the other species. High level events are also inferred for these events to allow for easier navigation.<p><a href='/electronic_inference_compara.html' target = 'NEW'>More details and caveats of the event inference in Reactome.</a> For details on PANTHER see also: <a href='http://www.pantherdb.org/about.jsp' target='NEW'>http://www.pantherdb.org/about.jsp</a>",
            "cellular_location": "Golgi lumen, Golgi membrane",
            "input_participant_list": [
                "R-ALL-4086285"
            ],
            "output_participant_list": [
                "R-ALL-4086277"
            ],
            "enzyme_list": [
                "P61131-1",
                "P61943-1",
                "Q02734-1",
                "Q11205-1",
                "Q68G12-1"
            ],
            "evidence": [
                {
                    "id": "R-RNO-4084984",
                    "database": "Reactome",
                    "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-4084984"
                }
            ]
        },
        {
            "id": "R-RNO-981497",
            "name": "ST3GAL1-4 transfers sialic acid to the T antigen at the alpha 3 position",
            "equation": "",
            "summary": "This event has been computationally inferred from an event that has been demonstrated in another species.<p>The inference is based on the homology mapping from PANTHER. Briefly, reactions for which all involved PhysicalEntities (in input, output and catalyst) have a mapped orthologue/paralogue (for complexes at least 75% of components must have a mapping) are inferred to the other species. High level events are also inferred for these events to allow for easier navigation.<p><a href='/electronic_inference_compara.html' target = 'NEW'>More details and caveats of the event inference in Reactome.</a> For details on PANTHER see also: <a href='http://www.pantherdb.org/about.jsp' target='NEW'>http://www.pantherdb.org/about.jsp</a>",
            "cellular_location": "Golgi lumen, Golgi membrane",
            "input_participant_list": [],
            "output_participant_list": [],
            "enzyme_list": [
                "P61131-1",
                "Q02734-1",
                "Q11205-1"
            ],
            "evidence": [
                {
                    "id": "R-RNO-981497",
                    "database": "Reactome",
                    "url": "https://www.reactome.org/PathwayBrowser/#R-RNO-981497"
                }
            ]
        }
    ],
    "reaction_participants": [
        {
            "participant_id": "R-ALL-4086277",
            "participant_name": "Neu5Ac-2,3-Gal-R [Golgi lumen]",
            "crossref": [
                {
                    "id": "75127",
                    "database": "ChEBI",
                    "url": ""
                },
                {
                    "id": "75127",
                    "database": "ChEBI",
                    "url": ""
                },
                {
                    "id": "75127",
                    "database": "ChEBI",
                    "url": ""
                }
            ]
        },
        {
            "participant_id": "R-ALL-4086285",
            "participant_name": "Gal-R [Golgi lumen]",
            "crossref": [
                {
                    "id": "61248",
                    "database": "ChEBI",
                    "url": ""
                },
                {
                    "id": "61248",
                    "database": "ChEBI",
                    "url": ""
                },
                {
                    "id": "61248",
                    "database": "ChEBI",
                    "url": ""
                },
                {
                    "id": "61248",
                    "database": "ChEBI",
                    "url": ""
                }
            ]
        }
    ],
    "reaction_enzymes": [
        {
            "uniprot_ac": "P54751",
            "gene_name": "St3gal1",
            "activity": [
                {
                    "ec_number": "2.4.3.2",
                    "activity": "CMP-N-acetyl-beta-neuraminate + ganglioside GM1 (d18:1(4E)) = CMP + ganglioside GD1a (d18:1(4E)) + H(+).",
                    "evidence": [
                        {
                            "id": "P54751",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P54751"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.4",
                    "activity": "a beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP-N-acetyl-beta-neuraminate = an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP + H(+).",
                    "evidence": [
                        {
                            "id": "P54751",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P54751"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.4",
                    "activity": "",
                    "evidence": [
                        {
                            "id": "P54751",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P54751"
                        }
                    ]
                }
            ]
        },
        {
            "uniprot_ac": "P61131",
            "gene_name": "St3gal4",
            "activity": [
                {
                    "ec_number": "3.6.1.59",
                    "activity": "a 5'-end (N(2),N(2),N(7)-trimethyl 5'-triphosphoguanosine)-(ribonucleoside) in mRNA + H2O = (N(2),N(2),N(7))-trimethyl-GMP + a 5'-end diphospho-ribonucleoside in mRNA + 2 H(+).",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "3.6.1.59",
                    "activity": "",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.2",
                    "activity": "CMP-N-acetyl-beta-neuraminate + ganglioside GM1 (d18:1(4E)) = CMP + ganglioside GD1a (d18:1(4E)) + H(+).",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.4",
                    "activity": "a beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP-N-acetyl-beta-neuraminate = an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP + H(+).",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.6",
                    "activity": "a beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl derivative + CMP-N-acetyl-beta-neuraminate = an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl derivative + CMP + H(+).",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.2",
                    "activity": "",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                },
                {
                    "ec_number": "2.4.3.4",
                    "activity": "",
                    "evidence": [
                        {
                            "id": "P61131",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61131"
                        }
                    ]
                }
            ]
        },
        {
            "uniprot_ac": "P61943",
            "gene_name": "St3gal6",
            "activity": [
                {
                    "ec_number": "2.4.99.-",
                    "activity": "",
                    "evidence": [
                        {
                            "id": "P61943",
                            "database": "UniProtKB",
                            "url": "https://www.uniprot.org/uniprot/P61943"
                        }
                    ]
                }
            ]
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        {
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                {
                    "ec_number": "2.4.3.6",
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                        {
                            "id": "Q02734",
                            "database": "UniProtKB",
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                        }
                    ]
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                {
                    "ec_number": "2.4.3.6",
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                            "id": "Q02734",
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                        }
                    ]
                }
            ]
        },
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            "uniprot_ac": "Q11201",
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                {
                    "ec_number": "2.4.3.2",
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                        {
                            "id": "Q11201",
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                        }
                    ]
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                {
                    "ec_number": "2.4.3.4",
                    "activity": "a beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP-N-acetyl-beta-neuraminate = an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative + CMP + H(+).",
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                            "id": "Q11201",
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                        }
                    ]
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                {
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                            "id": "Q11201",
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                        }
                    ]
                }
            ]
        },
        {
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                {
                    "ec_number": "2.4.3.2",
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                        }
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                {
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                            "id": "Q11204",
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                        }
                    ]
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                {
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                        }
                    ]
                }
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        {
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                {
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                        }
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                {
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                        }
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                {
                    "ec_number": "2.4.3.2",
                    "activity": "CMP-N-acetyl-beta-neuraminate + ganglioside GM1 (d18:1(4E)) = CMP + ganglioside GD1a (d18:1(4E)) + H(+).",
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