南方医科大学学报2012，Vol.32Issue(1)：109-112,4.DOI:44-1627/R.20120104.1604.003
蛋白C基因复合杂合突变导致的肺栓塞及家系研究
A pedigree analysis of pulmonary embolism caused by compound heterozygous mutations of protein C
摘要
Abstract
Objective To study the molecular pathogenesis of protein C (PC) deficiency in a patient with pulmonary embolism and in his family members. Methods Anticoagulated blood samples were collected from the proband and his family members to detect PC, PS and AT activities. PC antigen level was measured using ELISA. The genomic DN A was extracted to amplify all the 9 exons and their flanking sequences of PC gene using PCR, and the PCR products were sequenced. The mutated exons identified were amplified and sequenced for the other family members. Results The proband and his parents and sister were identified as carriers of PC gene mutation, which led to type II PC deficiency. Sequencing of the proband's PC gene showed two heterozygous point mutations in exon 3 (G5540A) and exon 7 (C10230T) to cause compound heterozygous mutations of PC E29K and PC R147W, which were inherited from his father and mother, respectively. His sister was a heterozygote of PC R147W. Conclusion The proband is a compourd heterozygous mutations carrier of PC E29K and PC147W. PC E29K is a novel PC mutation, and PC R147W is a reported PC gene mutation seen in patients with type II hereditary PC deficiency and recurrent thrombosis.关键词
蛋白C/蛋白C缺陷症/突变/肺栓塞Key words
protein C/ protein C deficiency/ mutation/ pulmonary embolism分类
医药卫生引用本文复制引用
叶絮,刘晓力,冯莹,丁秋兰,周旭红,王学锋..蛋白C基因复合杂合突变导致的肺栓塞及家系研究[J].南方医科大学学报,2012,32(1):109-112,4.基金项目
广东省社会发展攻关项目(2005B30601008) （2005B30601008）
