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Effects of K+ concentration on inhibition of protein synthesis by trimer and tetramer triphosphates of 2',5'-oligoadenylates in rabbit reticulocyte lysates.

Authors
Type
Published Article
Journal
Biochemical and Biophysical Research Communications
0006-291X
Publication Date
Volume
130
Issue
2
Pages
821–827
Identifiers
PMID: 2411264
Source
Medline

Abstract

The inhibition of protein synthesis by trimer or tetramer triphosphates of 2',5'-oligoadenylates (2-5A) in rabbit reticulocyte lysates is dependent on the concentration of K+ in the assay mixture. Based on studies using mRNA-dependent rabbit reticulocyte lysates and the degradation of [3H] polyadenylated mRNA, the greater inhibitory effects of trimer or tetramer triphosphates at the higher K+ is shown to be due to a more active 2-5A-dependent endoribonuclease (RNase L).

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