An Alteration in Apparent Molecular Weight of the Insulin Receptor from the Human Monocyte Cell Line U-937

An Alteration in Apparent Molecular Weight of the Insulin Receptor from the Human Monocyte Cell Line U-937
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人单核细胞系 U-937 胰岛素受体表观分子量的变化

DOI:
10.2337/diab.34.7.686
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发表时间:
1985
期刊:
影响因子:
7.7
通讯作者:
P. Gorden
P. Gorden
中科院分区:
医学1区
文献类型:
--
作者:
A. Mcelduff;G. Grunberger;P. Gorden

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我们已经研究了胰岛素受体的结构,从人类培养的单核细胞系,U-937。该受体由α和β亚基组成,如在其他胰岛素受体中所见,但这些亚基的表观分子量(α 150,000和β 102,000)大于典型胰岛素受体。尽管如此,U-937胰岛素受体似乎功能正常。α亚基结合胰岛素,β亚基响应胰岛素刺激而磷酸化。两种亚基均在质膜中表达。胰岛素结合等温线与IM-9淋巴细胞中观察到的相似。因此,从U-937单核细胞的胰岛素受体出现功能正常,尽管在亚基的分子量的改变。
We have studied the structure of the insulin receptor from a human cultured monocyte cell line, U-937. The receptor is composed of alpha and beta subunits as seen in other insulin receptors, but these subunits are of greater apparent molecular weight (alpha 150,000 and beta 102,000) than in typical insulin receptors. Despite this, the U-937 insulin receptor appears to function normally. The alpha subunit binds insulin and the beta subunit is phosphorylated in response to insulin stimulation. Both subunits are expressed in the plasma membrane. Insulin binding isotherms are similar to those seen in IM-9 lymphocytes. Thus, the insulin receptor from U-937 monocytes appears functionally normal despite alterations in molecular weight of the subunits.
DOI: 10.1016/s0021-9258(18)32085-4
发表时间: 1983-07
期刊: The Journal of biological chemistry
影响因子: --
作者:
K. Heidenreich;N. Zahniser;P. Berhanu;D. Brandenburg;J. Olefsky
通讯作者: K. Heidenreich;N. Zahniser;P. Berhanu;D. Brandenburg;J. Olefsky
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
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Shia,MA;Rubin,JB;Pilch,PF
通讯作者: Pilch,PF