>sp|C4ZYK2|GRCA_ECOBW Autonomous glycyl radical cofactor OS=Escherichia coli GN=grcA MITGIQITKAANDDLLNSFWLLDSEKGEARCIVAKAGYAEDEVVAVSKLGDIEYREVPVE VKPEVRVEGGQHLNVNVLRRETLEDAVKHPEKYPQLTIRVSGYAVRFNSLTPEQQRDVIA RTFTESL