Pelodiscus sinensis      Asp-Based PSP/FCP


※ FCP family introduction

    FCP/SCP phosphatase belongs to a family of phosphatase which uses an Asp nucleophile for catalysis. FCP/SCP is characterized by its phosphatase activity towards the CTD of the largest subunit of RNA polymerase II (1). At least seven members have been identified in human genome and FCP/SCP phosphatases share a conserved catalytic signature, which is known as DXDXT/V (2). Family member FCP1 is conserved among all eukaryotes and plays an important role in cell survival in budding and fission yeasts. SCP1 preferentially dephosphorylates Ser5 in CTD domain of RNA polymerase II and plays a role in the regulation of gene expression by controlling the transition from initiation/capping to processive transcript elongation (3). In addition, SCP1 also acts as a key regulator that functions in silencing neuronal gene expression (4).

Reference
1. Shi, Y. (2009) Serine/threonine phosphatases: mechanism through structure. Cell, 139, 468-484. PMID: 19879837
2. Moorhead, G.B., Trinkle-Mulcahy, L. and Ulke-Lemee, A. (2007) Emerging roles of nuclear protein phosphatases. Nat Rev Mol Cell Biol, 8, 234-244. PMID: 17318227
3. Yeo, M., Lin, P.S., Dahmus, M.E. and Gill, G.N. (2003) A novel RNA polymerase II C-terminal domain phosphatase that preferentially dephosphorylates serine 5. J Biol Chem, 278, 26078-26085. PMID: 12721286
4. Yeo, M., Lee, S.K., Lee, B., Ruiz, E.C., Pfaff, S.L. and Gill, G.N. (2005) Small CTD phosphatases function in silencing neuronal gene expression. Science, 307, 596-600. PMID: 15681389


There are 7 genes.  Reviewed (0 or Unreviewed (7

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Pes-0483
ENSPSIG00000004552.1
K7FA16
2
iEKPD-Pes-0477
ENSPSIG00000011844.1
K7FYS2
CTDNEP1
3
iEKPD-Pes-1183
ENSPSIG00000005374.1
K7FCQ3
CTDP1
4
iEKPD-Pes-0480
ENSPSIG00000010586.1
K7FUK4
CTDSPL
5
iEKPD-Pes-0487
ENSPSIG00000008067.1
K7FLB6
CTDSPL2
6
iEKPD-Pes-0482
ENSPSIG00000013854.1
K7G5L0
TIMM50
7
iEKPD-Pes-0486
ENSPSIG00000006151.1
K7FF39
UBLCP1