SRSF protein kinase 3 (SRPK3)

Serine/arginine-rich protein-specific kinase which specifically phosphorylates its substrates at serine residues located in regions full of arginine/serine dipeptides, called RS domains. Phosphorylates the SR splicing factor SRSF1 and the lamin-B receptor (LBR) in vitro.

Required for normal muscle growth (By similarity). .