Biopolymers and cell. 1989. Volume 5. № 1. 80 - 83

N. V. Belitsina

INITIATION FACTOR 3 (IF-3) OF ESCHERICHIA COLI IS A SUBSTRATE FOR LEU(PHE)-tRNA-PROTEIN TRANSFERASE

Summary

    Initiation factor 3 (IF-3) of Escherichia coli is a substrate for Leu(Phe)-tRNA-protehl transferase (EC 2.3.2.6). Of the two polypeptide chains, only the short one (β or s) can be modified by the attachment of leucine, phenylalanine or methionine to the N-terminal amino acid residue of the chain.