PMID- 10189220 OWN - NLM STAT- MEDLINE DCOM- 19990401 LR - 20211203 IS - 1059-7794 (Print) IS - 1059-7794 (Linking) VI - 13 IP - 1 DP - 1999 TI - Novel mutations in African American patients with glycogen storage disease Type II. Mutations in brief no. 209. Online. PG - 83-4 AB - The infantile form of GSD II (an inherited deficiency of the lysosomal enzyme, acid alpha-glucosidase, Pompe disease) is a severe and invariably fatal disease characterized by a rapidly progressive generalized hypotonia, hepatomegaly, and cardiomegaly. We have recently demonstrated that African American patients share a common nonsense R854X mutation in exon 18 (Becker et al., 1998). Two other mutations, D645E and M519V, have been identified in individual African American patients (Hermans et al., 1993a; Huie et al., 1994a). We describe here three novel mutations in this population group: a missense W481R in exon 10, a deletion of a T1441 in exon 10, and a splicing defect at the 5' donor site of intron 8 (IVS g+la) . The splicing defect is shared by two unrelated patients and it is linked to intragenic polymorphic sites identical to those found in patients bearing the common R854X mutation. FAU - Raben, N AU - Raben N AD - Arthritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA. FAU - Lee, E AU - Lee E FAU - Lee, L AU - Lee L FAU - Hirschhorn, R AU - Hirschhorn R FAU - Plotz, P H AU - Plotz PH LA - eng PT - Journal Article PL - United States TA - Hum Mutat JT - Human mutation JID - 9215429 SB - IM MH - Amino Acid Substitution/genetics MH - Blacks/*genetics MH - Glycogen Storage Disease Type II/*genetics MH - Humans MH - Mutation/*genetics MH - Mutation, Missense/genetics EDAT- 1999/04/03 03:16 MHDA- 2000/06/22 10:00 CRDT- 1999/04/03 03:16 PHST- 1999/04/03 03:16 [pubmed] PHST- 2000/06/22 10:00 [medline] PHST- 1999/04/03 03:16 [entrez] AID - 10.1002/(SICI)1098-1004(1999)13:1<83::AID-HUMU11>3.0.CO;2-8 [pii] AID - 10.1002/(sici)1098-1004(1999)13:1<83::aid-humu13>3.0.co;2-2 [doi] PST - ppublish SO - Hum Mutat. 1999;13(1):83-4. doi: 10.1002/(sici)1098-1004(1999)13:1<83::aid-humu13>3.0.co;2-2.