Structure of the Human Erythrocyte Insulin Receptor
Structure of the Human Erythrocyte Insulin Receptor
复制标题
人红细胞胰岛素受体的结构
DOI:
10.2337/diab.35.1.101
复制
发表时间:
1986
期刊:
影响因子:
7.7
通讯作者:
L. Harrison
中科院分区:
文献类型:
--
作者:
G. Ward;L. Harrison
The structure of the insulin receptor in intact human erythrocytes was defined using the techniques of disuccinimidyl suberate (DSS) cross-linking of 125I-insulin and surface [125I]iodination followed by receptor immunoprecipitation. In contrast to a recent report, we found the erythrocyte insulin receptor to be similar in structure to that in classic target tissues for insulin, consisting of at least three species of molecular weight approximately 295,000, 265,000, and 245,000, containing disulfide-linked subunits of molecular weight approximately 130,000 and 95,000. The interconversion of the three oligomeric forms could mediate changes in receptor affinity as postulated in other tissues. The 95,000 subunit was detected by immunoprecipitation only if surface iodination was performed in a Tris/Hepes buffer using lodogen and not if phosphate-buffered saline or lactoperoxidase iodination was used. These findings indicate that the lack of a bioeffect of insulin in erythrocytes is not explained by a gross defect in the structure of their insulin receptors. The apparent identity of the insulin receptor structure in erythrocytes and insulin target tissues provides a firmer basis for the use of erythrocytes in some circumstances to reflect insulin receptor status.
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DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Im,JH;Meezan,E;Rackley,CE;Kim,HD
通讯作者:
Kim,HD
DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Grigorescu,F;White,MF;Kahn,CR
通讯作者:
Kahn,CR
DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Massagué,J;Czech,MP
通讯作者:
Czech,MP
DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fujita-Yamaguchi,Y;Choi,S;Sakamoto,Y;Itakura,K
通讯作者:
Itakura,K
DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Roth,RA;Mesirow,ML;Cassell,DJ
通讯作者:
Cassell,DJ