ENTRY EC 3.6.1.8 NAME ATP pyrophosphatase ATPase CLASS Hydrolases Acting on acid anhydrides In phosphorus-containing anhydrides SYSNAME ATP pyrophosphohydrolase REACTION ATP + H2O = AMP + Pyrophosphate SUBSTRATE ATP H2O ITP GTP CTP UTP PRODUCT AMP Pyrophosphate IMP GMP CMP UMP COMMENT Also acts on ITP, GTP, CTP and UTP. DBLINKS University of Geneva ENZYME DATA BANK: 3.6.1.8 WIT (What Is There) Metabolic Reconstruction: 3.6.1.8 ///