《英文msh詞典》infB Protein
[入口詞] infB Protein
[主題詞] Prokaryotic Initiation Factor-2
[英文釋義] 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.