>sp|O26347|HIS3_METTH Phosphoribosyl-AMP cyclohydrolase OS=Methanothermobacter thermautotrophicus GN=hisI
MIKSKGDVNILLNFRHNINGEDLIIAVAQDHETGEVLMVAYMNREALRRTLETGTAHYWS
TSRGKLWLKGESSGHVQRVKDVLVDCDGDAVVLKVEQEGGACHTGYRSCFYRSIDGDELK
VREDAVKVFDPEEIYGDG