>1ZPS_1|Chains A, B|Phosphoribosyl-AMP cyclohydrolase|Methanothermobacter thermautotrophicus (145262) MIKSKGDVNILLNFRHNINGEDLIIAVAQDHETGEVLMVAYMNREALRRTLETGTAHYWSTSRGKLWLKGESSGHVQRVKDVLVDCDGDAVVLKVEQEGGACHTGYRSCFYRSIDGDELKVREDAVKVFDPEEIYGDG