海胆未受精卵染色质的异常特性。

Unusual properties of sea urchin unfertilized egg chromatin.

作者信息

Albanese I, Di Liegro I, Cognetti G

出版信息

Cell Biol Int Rep. 1980 Feb;4(2):201-10. doi: 10.1016/0309-1651(80)90075-2.

PMID:7190074

Abstract

A typical nucleosomal pattern is not detected by electrophoretic analysis of sea urchin mature egg chromatin, following digestion with micrococcal nuclease. Moreover, at least 80% of the egg nuclear DNA is resistant to nuclease attack. These unusual features of unfertilized egg chromatin, not shared by oocytes or sperms, are discussed in view of the unique properties and fate of mature female germ cells.

摘要

在用微球菌核酸酶消化后，通过电泳分析海胆成熟卵染色质未检测到典型的核小体模式。此外，至少80%的卵核DNA对核酸酶攻击具有抗性。鉴于成熟雌性生殖细胞的独特性质和命运，讨论了未受精卵染色质的这些未被卵母细胞或精子所共有的异常特征。