Polyadenylation of Maternal RNA of Sea Urchin Eggs After Fertilization

Overview

Journal Proc Natl Acad Sci U S A

Specialty Science

Date 1973 Aug 1

PMID 4525169

Citations 37

Authors

F H WILT

Affiliations

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Abstract

Between fertilization, or parthenogenetic activation, and the two-cell stage, the content of polyadenylic acid in sea urchin eggs doubles, and the increase occurs primarily in the ribosome-polyribosome fraction. The increase is due to polyadenylation of preexisting RNA molecules synthesized during oogenesis. The polyadenylation occurs in activated, enucleated merogons. It is argued that cytoplasmic polyadenylation may play a role in mobilization of maternal messenger RNA for translation and the polyadenylic acid does not subserve an exclusively nuclear function.

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