Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit delta (Ppp2r3d)

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. Interacts with retinoblastoma-related protein p107 (in vivo).

May target PP2A core dimer to p107 leading to dephosphorylation of p107. .