Cavia porcellus      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 8 genes.  Reviewed (0 or Unreviewed (8

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Cap-0535
ENSCPOG00000037721.1
A0A286X9Z1
CTDNEP1
2
iEKPD-Cap-1279
ENSCPOG00000002613.4
H0UYY7
CTDP1
3
iEKPD-Cap-0532
ENSCPOG00000032880.1
A0A286XWB2
CTDSP1
4
iEKPD-Cap-0538
ENSCPOG00000039281.1
A0A286XD86
CTDSP2
5
iEKPD-Cap-0526
ENSCPOG00000000592.4
H0UU95
CTDSPL
6
iEKPD-Cap-0528
ENSCPOG00000024099.2
H0W2Z0
CTDSPL2
7
iEKPD-Cap-0540
ENSCPOG00000024228.2
H0VW11
TIMM50
8
iEKPD-Cap-0542
ENSCPOG00000001621.4
A0A286XUJ9
UBLCP1