The largest of the three prokaryotic initiation factors with a molecular size of approximately 80 kD. It functions in the transcription initiation process by promoting the binding of formylmethionine-tRNA to the P-site of the 30S ribosome and by preventing the incorrect binding of elongator tRNA to the translation initiation site.

DUI

D039881 MeSH Browser

CUI

M0176255

Previous indexing

Peptide Initiation Factors (1990-2002)

History note

2003; use PROKARYOTIC INITIATION FACTOR-2 (NM) 1990-2002

Public note

2003; PROKARYOTIC INITIATION FACTOR-2 was indexed under PEPTIDE INTIATION FACTORS 1990-2002; TRANSLATIONAL INITIATION FACTOR 2 was indexed under PEPTIDE INITIATION FACTORS 1997-2002