>sp|Q9HXJ5|SYH_PSEAE Histidine--tRNA ligase OS=Pseudomonas aeruginosa GN=hisS MSKSLQAIRGMNDILPEQTPAWRYLERTFAGLLDGYGYSEIRLPILEFTELFARGIGEGT DVVDKEMYTFLDRNGESLTMRPEGTAGCVRAVLEHGLSGGGQVQKLWYTGPMFRYEKPQK GRYRQFHQIGVEVFNLPGPDIDAELIILTWRLWQKLGMADAVTLQLNTLGSSEARARYRE ALVAYLQERFEQLDEDSQRRMTTNPLRILDSKVESTQALLVGAPTLHDYLDEESIAHFEG LKARLDAVGLRYEINQKLVRGLDYYCRTAFEWVTDKLGAQGTVCGGGRYDGLVSQFGGKP TPGVGFAMGVERLVLLLETLGVIPAELNRPADLYVCAFGEPAELAALTLAEQLRSAIPGI RLLVNAGAGSFKSQFKKADKSGARFALILGEDEVANRVVGFKPLRDEGEQQSIAWDALPE HLAACLAQA