PMID- 10612839 OWN - NLM STAT- MEDLINE DCOM- 20000120 LR - 20061115 IS - 1098-1004 (Electronic) IS - 1059-7794 (Linking) VI - 15 IP - 1 DP - 2000 Jan TI - Mutations of the factor VIII gene in thai hemophilia A patients. PG - 117-8 AB - Hemophilia A is a common X-linked bleeding disorder caused by mutations in the coagulation factor VIII gene. The entire coding and essential sequences of the factor VIII gene were generated by a combination of genomic DNA amplification and long reverse transcription-polymerase chain reaction (long RT-PCR) using factor VIII transcripts prepared from lymphocytes. Mutations were then screened by non-radioactive single strand conformation polymorphism (SSCP) analysis and characterized by DNA sequencing. We have identified six potentially pathogenic mutations in the factor VIII gene in Thai hemophilia A patients, including two nonsense mutations (R-5X and R1966X), three missense mutations (D542Y, G1850V, and G2325C), and a 4-bp insertion (ACTA) at codon 2245. Three of these mutations (D542Y, G2325C, and 4-bp insertion) have never been previously reported, and the ins2245 is the first example of such insertion probably causing factor VIII elongation. R1966X, D542Y, G1850V, and 4-bp insertion were associated with a severe hemophiliac phenotype whereas R-5X and G2325C were observed in moderately affected patients. Mutations in the factor VIII gene in Thai hemophilia A patients are likely to be heterogeneous. This study represents the first attempt to further the understanding of the molecular basis of hemophilia A in Thai. CI - Copyright 2000 Wiley-Liss, Inc. FAU - Akkarapatumwong, V AU - Akkarapatumwong V AD - Institute of Molecular Biology and Genetics, Mahidol University, Salaya Campus, Nakhon Pathom. FAU - Oranwiroon, S AU - Oranwiroon S FAU - Pung-amritt, P AU - Pung-amritt P FAU - Treesucon, A AU - Treesucon A FAU - Thanootarakul, P AU - Thanootarakul P FAU - Veerakul, G AU - Veerakul G FAU - Mahasandana, C AU - Mahasandana C FAU - Panyim, S AU - Panyim S FAU - Yenchitsomanus, P AU - Yenchitsomanus P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Hum Mutat JT - Human mutation JID - 9215429 RN - 9001-24-5 (Factor V) RN - 9001-27-8 (Factor VIII) RN - EC 1.16.3.1 (Ceruloplasmin) SB - IM MH - Amino Acid Sequence MH - Animals MH - Cattle MH - Ceruloplasmin/genetics MH - Factor V/genetics MH - Factor VIII/*genetics MH - Female MH - Hemophilia A/*genetics MH - Humans MH - Male MH - Mice MH - Molecular Sequence Data MH - Mutation MH - Polymerase Chain Reaction MH - Polymorphism, Single-Stranded Conformational MH - Rats MH - Reverse Transcriptase Polymerase Chain Reaction MH - Sequence Alignment MH - Swine MH - Thailand EDAT- 1999/12/29 00:00 MHDA- 1999/12/29 00:01 CRDT- 1999/12/29 00:00 PHST- 1999/12/29 00:00 [pubmed] PHST- 1999/12/29 00:01 [medline] PHST- 1999/12/29 00:00 [entrez] AID - 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU27>3.0.CO;2-E [pii] AID - 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU27>3.0.CO;2-E [doi] PST - ppublish SO - Hum Mutat. 2000 Jan;15(1):117-8. doi: 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU27>3.0.CO;2-E.