hisS SYH_BIFLO 466 MAKGASISGFPEWLPSERVVEQRVIDTLRKVFELNGFIGIETRAVETGASLLKKGETSKEIYLLSRLQEVGHESDTPIEERLGLHFDLTVPLSRYVVEHSGALAFPFKRWQIQKVWRGERPQEGRFREFVQADIDVIGAGDLPDHYEVELPLVMVSALEELRAYGLPKATVHANNRKLSEGFYRGLGLTDVEGVLREIDKLDKIGADEVARLLTETCGATEAQARACLELAELTASDGAELAAKFDALCEAHGIVKDSEAYTLARQGLDTLAMIVDEAAAIRPGSVIADLKIARGLDYYTGSVYETFLDGAASLGSICSGGRYDNLASQGNRKYPGVGLSIGLSRLVSYMLHTAGAHANRVSPAAVLVAVWNEEDRPAANRIANQLRARGIATDVAPTAAKLGKQIKYADKLGIPYVWFPATAAEGAEGAEPAGDEVKNIVTGEQVAADCTSWEPDTVVAQQTVEI Histidine--tRNA ligase BL0017 Histidyl-tRNA synthetase