Otolemur garnettii      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-Otg-0516
ENSOGAG00000004389.2
H0WPT1
CTDNEP1
2
iEKPD-Otg-1303
ENSOGAG00000026225.1
H0XQT5
CTDP1
3
iEKPD-Otg-0511
ENSOGAG00000004159.2
H0WPB0
CTDSP1
4
iEKPD-Otg-0517
ENSOGAG00000012247.2
H0X6H3
CTDSP2
5
iEKPD-Otg-0513
ENSOGAG00000004624.2
H0WQA9
CTDSPL
6
iEKPD-Otg-0528
ENSOGAG00000004689.2
H0WQG2
CTDSPL2
7
iEKPD-Otg-0520
ENSOGAG00000012048.2
H0X624
TIMM50
8
iEKPD-Otg-0526
ENSOGAG00000014005.2
H0XAA5
UBLCP1