Canis familiaris      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-Caf-0507
ENSCAFG00000016110.4
E2R6N2
CTDNEP1
2
iEKPD-Caf-1293
ENSCAFG00000000010.4
E2R1Y2
CTDP1
3
iEKPD-Caf-0517
ENSCAFG00000014662.4
E2RTC0
CTDSP1
4
iEKPD-Caf-0509
ENSCAFG00000000308.3
E2R9C5
CTDSP2
5
iEKPD-Caf-0512
ENSCAFG00000013529.3
F6XTC9
CTDSPL2
6
iEKPD-Caf-0511
ENSCAFG00000005445.4
E2RFI6
TIMM50
7
iEKPD-Caf-0513
ENSCAFG00000017291.3
E2RR79
UBLCP1