人 F12 (NM_000505) cDNA克隆

Accession: NM_000505
基因名称: F12
基因别名: HAF; HAE3; HAEX
基因描述: Homo sapiens coagulation factor XII (Hageman factor) (F12), mRNA.
种属: Human
CDS区长度: 1848 (查看编码区序列)
翻译后氨基酸长度: 615 (查看氨基酸序列)
产品编号 产品名称 载体 规格 价格
G109322 人 F12 (NM_000505) cDNA克隆 pDONR223 2ug质粒 点击询价

This gene encodes coagulation factor XII which circulates in blood as a zymogen. This single chain zymogen is converted to a two-chain serine protease with an heavy chain (alpha-factor XIIa) and a light chain. The heavy chain contains two fibronectin-type domains, two epidermal growth factor (EGF)-like domains, a kringle domain and a proline-rich domain, whereas the light chain contains only a catalytic domain. On activation, further cleavages takes place in the heavy chain, resulting in the production of beta-factor XIIa light chain and the alpha-factor XIIa light chain becomes beta-factor XIIa heavy chain. Prekallikrein is cleaved by factor XII to form kallikrein, which then cleaves factor XII first to alpha-factor XIIa and then to beta-factor XIIa. The active factor XIIa participates in the initiation of blood coagulation, fibrinolysis, and the generation of bradykinin and angiotensin. It activates coagulation factors VII and XI. Defects in this gene do not cause any clinical symptoms and the sole effect is that whole-blood clotting time is prolonged. [provided by RefSeq, Jul 2008]