>tr|A0A8B4R5A4|A0A8B4R5A4_MYCSM Phosphoribosyl-AMP cyclohydrolase OS=Mycolicibacterium smegmatis GN=hisI MSLDPAIAARLKRNADGLFAAVTQERGTGKVLMVAWMDDDALARTLQTREATYFSRSRGE QWVKGATSGHTQKVHSVRLDCDGDTVLLEVDQVGGACHTGDHTCFDADLLLGPDE