>tr|A0A7L4P836|A0A7L4P836_9CREN Histidine--tRNA ligase OS=Pyrobaculum arsenaticum GN=hisS MTGLPDQLRRPVRGMRDWMPQQLYALRRMEEVLSSVAEQYGYRRVETPVVEHFEVLAKKA GQEVINEIYYFRDKAGRELGLRFDMTVPIARVLSYNLDLPRPVRWYYFSKVFRYDEPQHG RYREFFQFGVELIGSASPRADAEVVQLLAASLEAAGASKYVIRINDRRAVDKLLESLGAL SHRDAVYRALDKKLKLPREEVIGIMTSGGLPRDAAEKIYDTASEMSLDEAVEVLRRLDGR LGEAYAKFVKYLEAAVPLERFKFDMSIVRGLDYYTGVVFEAFVGDYWLAVGGGGRYDDLL ELYSGVKIPALGFAIGVERLMEAVGLQSVEKPLDYYIYIFDDDAYKHAVALANRLRKQGH SVVVELGEKNLKDVFEYVLKIGTRYLVLIGRKELEKGVVKIRDLQKRGEVEVPLSALLS