sp|B7NHJ6|MURG_ECO7I UDP-N-acetylglucosamine--N-acetylmuramyl-(pentapeptide) pyrophosphoryl-undecaprenol N-acetylglucosamine transferase OS=Escherichia coli O7:K1 (strain IAI39 / ExPEC) OX=585057 GN=murG PE=3 SV=1