
9728太阳集团首页请回答为您讲解什么是KRAS?
RAS是GTPase原癌基因家族成员,包括3个密切相关的RAS亚型,HRAS,KRAS and NRAS。
RAS is a family of GTPase proto-oncogenes, comprising three closely related RAS isoforms:HRAS,KRAS and NRAS.
在所有RAS亚型中,KRAS突变频率最高,KRAS突变常见于胰腺癌,肺癌和结直肠癌。
KRAS gene is a proto-oncogene that encodes a GTP/GDP-binding protein, that belongs to the GTPase RAS family.
KRAS基因是编码GTP/GDP结合蛋白的原癌基因,属于GTPase RAS家族。KRAS蛋白作为分子开关,在GDP结合的无活性状态和GTP结合的活性状态之间循环。KRAS蛋白分别通过与GTP和GDP结合,在无活性分子和活性形式之间转换。
The KRAS protein acts as molecular switches that cycle between a GDP-bound inactive state and a GTP-bound active state. KRAS protein switches between an inactive to an active form via binding to GTP and GDP respectively。
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