label: histone H2AR3 arginine deiminase activity
label_lc: histone h2ar3 arginine deiminase activity
description: "Catalysis of the reaction: H2O + histone 2A L-arginyl (position 3)= histone 2A L-citrullyl (position 3) + NH4+, resulting in histone H2A citrullination at position 3."