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结肠腺瘤性息肉病蛋白通过与SMAP/KAP3相互作用与微管结合
引用本文:王成,郑多,钟向阳,夏昆,黄亮群,戴和平,陈玉祥,夏家辉. 结肠腺瘤性息肉病蛋白通过与SMAP/KAP3相互作用与微管结合[J]. 生物化学与生物物理进展, 2002, 29(6): 885-890
作者姓名:王成  郑多  钟向阳  夏昆  黄亮群  戴和平  陈玉祥  夏家辉
作者单位:中南大学湘雅医学院,中国医学遗传学国家重点实验室,长沙,410078
基金项目:国家重点基础研究发展规划(973)项目(G1998051002),国家自然科学基金资助项目(39970372)和国家杰出青年科学基金(39928016).
摘    要:结肠腺瘤性息肉病基因(adenomatous polyposis coli,APC)的突变导致家族性结肠息肉腺瘤病和散发性结肠癌,APC基因编码一个具有多个结构域、多种磷酸化状态的大分子蛋白质.APC蛋白可通过C段直接或间接与微管结合,同时还可以通过中段与微管结合,但其结合的机制目前还不清楚.为进一步研究APC与其他蛋白质的相互作用,利用酵母双杂交技术运用APC中段(1 500 bp~4 800 bp)构建诱饵质粒,筛选人胎脑cDNA文库,得到一个与APC相互作用的蛋白SMAP/KAP3,SMAP/KAP3是驱动蛋白KIF3A/3B的相关蛋白.通过免疫共沉淀和双色免疫荧光共定位的方法,证实了APC与SMAP/KAP3在体内的相互作用,提示APC可能通过SMAP/KAP3-KIF3A/B参与沿微管的运动.

关 键 词:结肠腺瘤性息肉病基因(APC),SMAP/KAP3,酵母双杂交,相互作用,微管
收稿时间:2002-06-05
修稿时间:2002-06-05

APC Binds to Microtubules Through The Interaction of SMAP/KAP3
WANG Cheng,ZHENG Duo,ZHONG Xiang-Yang,XIA Kun,HUANG Liang-Qun,DAI He-Ping,CHEN Yu-Xiang and XIA Jia-Hui. APC Binds to Microtubules Through The Interaction of SMAP/KAP3[J]. Progress In Biochemistry and Biophysics, 2002, 29(6): 885-890
Authors:WANG Cheng  ZHENG Duo  ZHONG Xiang-Yang  XIA Kun  HUANG Liang-Qun  DAI He-Ping  CHEN Yu-Xiang  XIA Jia-Hui
Affiliation:Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China;Xiangya Medical School of Center South University, National Laboratry of Medical Genetics of China, Changsha 410078, China
Abstract:
Keywords:adenomatous polyposis coli(APC)   SMAP/KAP3  yeast two-hybrid   interaction  microtubule
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