The Salmonella typhimurium homolog, CobB, can substitute for {TAIL ~ CobT} as {HEAD ~ a phosphoribosyl transferase} during cobalamin biosynthesis  
The Salmonella typhimurium homolog , CobB , can substitute for { TAIL ~ CobT } as { HEAD ~ a phosphoribosyl transferase } during cobalamin biosynthesis
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH