公牛精囊分泌物和精浆中的钙结合蛋白。

Calcium-binding protein in bull seminal vesicle secretion and seminal plasma.

作者信息

Lukac J, Pribanić M, Koren E

出版信息

J Reprod Fertil. 1976 Sep;48(1):77-81. doi: 10.1530/jrf.0.0480077.

DOI:10.1530/jrf.0.0480077

Abstract

A protein which showed high affinity for calcium ions was isolated from bull seminal vesicle secretion and seminal plasma. Its calcium-binding activity depended on the ionic strength and pH of the medium. The dissociation constant was 7-7 X 10(-7) M and there were 14 binding sites per protein molecule. The molecular weight of calcium-binding protein from bull seminal vesicle secretion, estimated by the gel filtration method, was 110,000. The protein may be involved in the regulation of the calcium ion level in seminal plasma.

摘要

从公牛精囊分泌物和精浆中分离出一种对钙离子具有高亲和力的蛋白质。其钙结合活性取决于介质的离子强度和pH值。解离常数为7.7×10⁻⁷ M，每个蛋白质分子有14个结合位点。通过凝胶过滤法估算，公牛精囊分泌物中钙结合蛋白的分子量为110,000。该蛋白质可能参与精浆中钙离子水平的调节。