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角蛋白17的置换肽的克隆表达及纯化
引用本文:史晓蔚,沈柱,刘玉峰. 角蛋白17的置换肽的克隆表达及纯化[J]. 中国皮肤性病学杂志, 2005, 19(10): 595-597
作者姓名:史晓蔚  沈柱  刘玉峰
作者单位:第四军医大学西京医院皮肤科,陕西,西安,710032
摘    要:
目的克隆角蛋白17的置换肽(APL),表达并纯化置换肽。方法将人工合成的置换肽DNA片段连接至表达载体pGEX4T1,转化大肠杆菌,IPTG诱导表达融合蛋白,分析鉴定表达蛋白,并纯化蛋白。结果①连接到载体的DNA序列,序列测定证实与已知序列一致;②成功构建了融合表达载体;③表达了pGEX4TS12E融合蛋白;④得到纯化的融合蛋白。结论人角蛋白17的置换肽的克隆成功及融合蛋白的表达与纯化,为进一步探索置换肽的功能打下了基础。

关 键 词:角蛋白  置换肽  克隆  银屑病
文章编号:1001-7089(2005)10-0595-03
收稿时间:2005-07-04
修稿时间:2005-07-042005-08-12

Gene Cloning, Expression and Purification of APL of Keratin 17
SHI Xiao-wei,SHEN Zhu,LIU Yu-feng. Gene Cloning, Expression and Purification of APL of Keratin 17[J]. The Chinese Journal of Dermatovenereology, 2005, 19(10): 595-597
Authors:SHI Xiao-wei  SHEN Zhu  LIU Yu-feng
Abstract:
Objective To clone APL of keratin 17,express and purify APL. Methods The DNA fragments were inserted into vector pGEX-4T-1.APL was expressed in E coli as fusion protein induced by IPTG.The fusion protein was purified.Results ①The DNA sequence was confirmed by sequencing;②Fusion expression vector was successfully constructed;③The fusion protein pGEX-4T-S12E was correctly expressed;④Purified fusion protein was obtained.Conclusion We successfully cloned APL of keratin 17 and constructed fusion expressing vector.The fusion protein was correctly expressed in E coli.We purified the fusion protein.What we have done will surely be useful to the study of APL.
Keywords:Keratin  APL  Clone  Psoriasis
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