
yl23455永利请回覆为您解说什么是KRAS?????
RAS是GTPase原癌基因家族成员,,,,包括3个亲近相关的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连系卵白的原癌基因,,,,属于GTPase RAS家族。。。。KRAS卵白作为分子开关,,,,在GDP连系的无活性状态和GTP连系的活性状态之间循环。。。。KRAS卵白划分通过与GTP和GDP连系,,,,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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