phosphoric diester hydrolase activity protein adenylylhydrolase activity protein deAMPylation activity protein deAMPylase activity molecular_function jl 2012-05-01T04:18:07Z Catalysis of the reaction: adenylyl-protein+ H2O = adenylate + protein; mediates the removal of an adenylyl (adenosine 5'-monophosphate; AMP group) from specific residues of target proteins. GO:0044603 catalytic activity, acting on a protein