The Role of Membrane Proteins and Phospholipids in the Interaction of Ribosomes with Endoplasmic Reticulum Membranes

Overview

Journal Can J Biochem

Specialty Biochemistry

Date 1975 Sep 1

PMID 1182590

Citations 10

Authors

S Jothy

J L Bilodeau

H Simpkins

Affiliations

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Abstract

Hydrolysis of the membrane proteins and phospholipid headgroups of rat liver rough endoplasmic reticulum membranes showed that the ribosomal binding sites involve membrane proteins susceptible to low concentrations of trypsin, chymotrypsin, and papain. Three membrane proteins having molecular weights of 120 000, 93 000 and 36 000 are found to be altered by trypsin and chymotrypsin treatment. Also the polar headgroup of phosphatidylinositol appears to play a role in the binding process.

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