脊椎动物精子组蛋白的多样性：II. 银鲛精子发生过程中碱性蛋白转变的细胞化学研究。

On the diversity of sperm histones in the vertebrates: II. A cytochemical study of the basic protein transitions during spermiogenesis in the cartilaginous fish Hydrolagus colliei.

作者信息

Bols N C, Kasinsky H E

出版信息

J Exp Zool. 1976 Oct;198(1):109-13. doi: 10.1002/jez.1401980112.

DOI:10.1002/jez.1401980112

Abstract

Spermiogenesis in the ratfish (Hydrolagus colliei) is characterized by unusual changes in the basic proteins of the nucleus. Cytochemical analysis indicates that early spermatids in this cartilaginous fish contain the somatic type of histones. However, late spermatids contain the salmon type of sperm histone whereas spermatozoa display the mouse/grasshopper type designated by Bloch ('69). Such an unusual cytochemical shift from protamine in the spermatid to "stable protamine" in the sperm has not been documented heretofore.

摘要

银鲛（Hydrolagus colliei）的精子发生以细胞核碱性蛋白的异常变化为特征。细胞化学分析表明，这种软骨鱼类的早期精子细胞含有体细胞类型的组蛋白。然而，晚期精子细胞含有鲑鱼类型的精子组蛋白，而精子则显示出布洛赫（1969年）命名的小鼠/蝗虫类型。从精子细胞中的鱼精蛋白到精子中的“稳定鱼精蛋白”这种异常的细胞化学转变迄今尚未见报道。