《英文msh词典》infB Protein
[入口词] infB Protein
[主题词] Prokaryotic Initiation Factor-2
[英文释义] 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.