protein-arginine N-methyltransferase activity histone H2AR3 methyltransferase activity https://github.com/geneontology/go-ontology/issues/30578 histone-arginine N-methyltransferase activity (H2A-R3 specific) Note that the residue position corresponds to the canonical human H2A2A histone (UniProtKB:Q6FI13); this residue seems to be only present in animals. Residue 1 is the first residue following removal of the initiating Methionine (Met). Note that each histone is encoded by multiple genes, and sequences may vary across different genes within an organism. histone methyltransferase activity (H2A-R3 specific) Catalysis of the reaction: S-adenosyl-L-methionine + (histone H2A)-arginine (position 3) = S-adenosyl-L-homocysteine + (histone H2A)-N-methyl-arginine (position 3). This reaction is the addition of a methyl group to the arginine residue at position 3 of histone H2A. molecular_function mah histone methylase activity (H2A-R3 specific) 2009-04-29T02:06:45Z histone H2AR3 arginine methyltransferase activity histone-H2AR3 methyltransferase activity GO:0070612 histone H2A methyltransferase activity