Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform, PPP2R5A, PP2A B subunit isoform B-alpha, PP2A B subunit isoform B56-alpha, PP2A B subunit isoform PR61-alpha, PR61alpha, PP2A B subunit isoform R5-alpha
The B regulatory subunit might modulate substrate selectivity and catalytic activity, and also might direct the localization of the catalytic enzyme to a particular subcellular compartment.