2.7.1.238 ATP + phenol + H2O - AMP + phenyl phosphate + phosphate - ? 461534 2.7.1.238 ATP + phenol + H2O the enzyme catalyses the first step in an anaerobic phenol degradation pathway AMP + phenyl phosphate + phosphate - ? 461534 2.7.1.238 ATP + phenol + H2O during catalysis a diphosphoryl group is transferred from ATP to a histidine residue (His569) in one of the subunits of the enzyme, from which phosphate is cleaved to render the reaction unidirectional. The remaining histidine phosphate subsequently serves as the actual phosphorylation agent AMP + phenyl phosphate + phosphate - ? 461534