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神经生长因子与小鼠脑微管蛋白的相互作用。

Interaction of nerve growth factor with the mouse-brain neurotubule protein(s).

作者信息

Calissano P, Cozzari C

出版信息

Proc Natl Acad Sci U S A. 1974 May;71(5):2131-5. doi: 10.1073/pnas.71.5.2131.

Abstract

Addition of nerve growth factor to a 105,000 x g supernatant of mouse brain induces the formation of a precipitate whose main constituent is the microtubule protein(s) (tubulin). The binding of nerve growth factor to purified tubulin is not inhibited by colchicine and does not appear to depend on the presence of GTP or Mg(++). GTP, however, and divalent cations, exert a marked effect on the increased turbidity induced by interaction of nerve growth factor with tubulin. These findings are tentatively interpreted with the hypothesis that binding of the factor to tubulin and the induced aggregation is a sequential two-step process; the latter but not the former would be influenced by GTP or divalent cations.

摘要

向小鼠脑105,000×g上清液中添加神经生长因子会诱导形成一种沉淀物,其主要成分是微管蛋白(微管素)。秋水仙碱不会抑制神经生长因子与纯化微管素的结合,而且这种结合似乎不依赖于鸟苷三磷酸(GTP)或镁离子(Mg++)的存在。然而,GTP和二价阳离子对神经生长因子与微管素相互作用所诱导的浊度增加有显著影响。这些发现初步解释如下:该因子与微管素的结合以及所诱导的聚集是一个连续的两步过程;后者而非前者会受到GTP或二价阳离子的影响。

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Promotion of fluorescence upon binding of colchicine to tubulin.秋水仙碱与微管蛋白结合后荧光增强。
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Precipitation of proteins by vinblastine and calcium ions.长春碱和钙离子对蛋白质的沉淀作用。
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引用本文的文献

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Nerve growth factor potentiates actomyosin adenosinetriphosphatase.
Proc Natl Acad Sci U S A. 1978 May;75(5):2210-4. doi: 10.1073/pnas.75.5.2210.

本文引用的文献

1
Vinblastine-induced precipitation of microtubule protein.长春碱诱导的微管蛋白沉淀。
Science. 1969 Aug 1;165(3892):498-9. doi: 10.1126/science.165.3892.498.
3
Microtubular crystals in mammalian cells.哺乳动物细胞中的微管晶体。
J Cell Biol. 1969 Jan;40(1):95-107. doi: 10.1083/jcb.40.1.95.
8
The binding of vincristine, vinblastine and colchicine to tubulin.长春新碱、长春碱和秋水仙碱与微管蛋白的结合。
Biochem Biophys Res Commun. 1972 May 26;47(4):685-91. doi: 10.1016/0006-291x(72)90546-3.
10
A soluble protein characteristic of the nervous system.一种神经系统特有的可溶性蛋白质。
Biochem Biophys Res Commun. 1965 Jun 9;19(6):739-44. doi: 10.1016/0006-291x(65)90320-7.

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