活体红细胞内血红蛋白的电泳释放

当今的蛋白质组学研究,都是先裂解细胞放出蛋白质,然后对蛋白质溶液进行各种分析.对于红细胞来说,它的裂解产物也称＂溶血液＂,其中主要成分有血红蛋白A1,A2,A3和碳酸酐酶（CA）等.本实验室用未裂解的完整的活体红细胞直接进行电泳,观察其释放出来的血红蛋白（hemoglobin,Hb）,建立了淀粉-琼脂糖混合凝胶中红细胞的电泳释放实验.电泳释放可分为＂初释放＂（一次通电完成电泳,此时有Hb释放出来）和＂再释放＂（电泳过程中断电-再通电,又有Hb释放出来）.本实验室在＂初释放＂实验中发现了＂HbA2现象＂,并通过Hb交叉电泳发现了HbA2与HbA1的相互作用;利用初释放型双向对角线电泳发现红细胞内HbA2与HbA1结合存在;对电泳释放出来的＂HbA2现象＂成分做SDS-PAGE及质谱分析,发现Prx-2（Peroxiredoxin-2）可能参与＂HbA2现象＂的形成;在研究＂再释放＂实验中发现了＂Hb多带再释放现象＂,在此基础上创建等渗再释放、低渗再释放、等低渗全程再释放及再释放型双向对角线电泳;两种红细胞（全血中的红细胞和由它分离出来的游离红细胞）再释放的比较研究;血浆成分对红细胞再释放的影响等.以上研究方法的建立为活体细胞内蛋白质存在状态的研究提供了基础,并开辟了新的研究途径和领域.

Electrophoresis release of hemoglobin from living red blood cells

Nowadays,proteomics research is almost always made by lysing cells to release protein first and then to analyze the protein solution in many ways,the lytic product of red blood cells is also called hemolysate,the main components of which are hemoglobin A1,A2,A3 and carbonic anhydrase(CA),etc.In our laboratory,intact(unlysed) living red blood cells are used for direct electrophoresis so as to observe the released hemoglobin(Hb).Thus an electophoresis release experiment has been established with starch-agaros...