label: histone H2A methyltransferase activity
label_lc: histone h2a methyltransferase activity
description: "Catalysis of the reaction: S-adenosyl-L-methionine + a histone H2 = S-adenosyl-L-homocysteine + a methylated histone H2A. Histone methylation generally occurs on either an arginine or a lysine residue."