go_id,ontology,go_term,term_definition,evidence GO:0000287,MF,"magnesium ion binding","Interacting selectively and non-covalently with magnesium (Mg) ions.",IDA GO:0003875,MF,"ADP-ribosylarginine hydrolase activity","Catalysis of the reaction: N2-(ADP-D-ribosyl)-L-arginine + H2O = L-arginine + ADP-ribose.",IMP GO:0005622,CC,intracellular,"The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.",IEA GO:0006464,BP,"cellular protein modification process","The covalent alteration of one or more amino acids occurring in proteins, peptides and nascent polypeptides (co-translational, post-translational modifications) occurring at the level of an individual cell. Includes the modification of charged tRNAs that are destined to occur in a protein (pre-translation modification).",TAS GO:0051725,BP,"protein de-ADP-ribosylation","The process of removing one or more ADP-ribose residues from a protein.",IDA