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绒毛尿囊膜的钙结合蛋白:鉴定与发育表达

Calcium-binding protein of chorioallantoic membrane: identification and development expression.

作者信息

Tuan R S, Scott W A

出版信息

Proc Natl Acad Sci U S A. 1977 May;74(5):1946-9. doi: 10.1073/pnas.74.5.1946.

Abstract

A calcium-binding protein (CaBP) which has a molecular weight of 100,000 and an isoelectric point of 8.0 has been isolated from the chorioallantoic membrane (CAM) of the chick embryo. Expression of the CaBP occurs simultaneously with the onset of calcium absorption from the egg shell by the CAM, and the temporal increase in CaBP activity is coincident with calcium deposition in the embryo. The CAM CaBP differs in properties from the CaBPs of the adult organs, including the vitamin-D-dependent protein of intestine.

摘要

从鸡胚绒毛尿囊膜(CAM)中分离出一种分子量为100,000且等电点为8.0的钙结合蛋白(CaBP)。CaBP的表达与CAM从蛋壳吸收钙的开始同时发生,并且CaBP活性的时间性增加与胚胎中的钙沉积相一致。CAM CaBP在性质上与成年器官的CaBPs不同,包括肠道的维生素D依赖性蛋白。

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