Purified (~70-90%). PFTK1 is a member of the CDC2 - related protein kinase family which is expressed primarily in the postnatal and adult nervous system. PFTK1 is expressed at high levels in brain, pancreas, kidney, heart, testis, and ovary. PFTK1 amino acid residue ser119 is required for its interaction with all four 14-3-3 isoforms, while ser120 may contribute slightly to PFTK1 binding. PFTK1 acts as a cyclin-dependent kinase that regulates cell cycle progression and cell proliferation. Overexpression of PFTK1 predicts resistance to chemotherapy in patients with oesophageal squamous cell carcinoma. Source: Recombinant protein corresponding to human PFTK1 (CDK14)/CyclinY fused to GST-Tag at N-terminal expressed in Insect cells. Molecular Weight: ~64kD, 72kD Specific Activity: 2.5nmol/min/mg as per activity assay protocol. Endotoxin: <1EU/ug (LAL)