{
    "record_id": "PubMed.10089879", 
    "reference": {
        "url": "https://www.ncbi.nlm.nih.gov/pubmed/10089879", 
        "type": "PubMed", 
        "id": "10089879"
    }, 
    "title": "A novel ubiquitination factor, E4, is involved in multiubiquitin chain assembly.", 
    "journal": "Cell", 
    "referenced_glycans": [], 
    "authors": "Koegl M, Hoppe T, Schlenker S, Ulrich HD, Mayer TU, Jentsch S", 
    "date": "1999", 
    "referenced_proteins": [
        "O95155-1", 
        "Q14139-1"
    ], 
    "abstract": ""
}