DIFFERENCES IN TYROSINE PHOSPHORYLATION OF OOCYTE KEY PROTEINS DURING 5HT-INDUCED MEIOSIS REINITIATION IN 2 BIVALVE SPECIES

被引：13

作者：

ABDELMAJID, H ^{[1
]}

RIVAILLER, P ^{[1
]}

KRANTIC, S ^{[1
]}

GUERRIER, P ^{[1
]}

机构：

[1] ECOLE NORMALE SUPER LYON,UMR 49,F-69364 LYON 07,FRANCE

来源：

EXPERIMENTAL CELL RESEARCH | 1994年 / 212卷 / 02期

关键词：

D O I：

10.1006/excr.1994.1163

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

The neurohormone serotonin (5HT) triggers meiosis reinitiation in oocytes of the pelecypod molluscs Spisula solidissima and Ruditapes philippinarum. However, while Spisula oocytes complete maturation, Ruditapes oocytes arrest in metaphase I. Anti-phosphotyrosine antibody revealed that serotonin triggered an early tyrosine phosphorylation of p42(mapk) which was transient in Spisula, but persisted in Ruditapes. Moreover, dephosphorylation of tyrosine residues of p34(cdc2) was only observed in Spisula oocytes, simultaneously with germinal vesicle breakdown. The possibility is discussed that such differences may account for maintenance of the metaphase I block. (C) 1994 Academic Press, Inc.

引用

页码：422 / 425

页数：4

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