Rattus norvegicus      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 (3 or Unreviewed (5

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Ran-0521
ENSRNOG00000017352.4
Q3B7T6
Ctdnep1
2
iEKPD-Ran-0537
ENSRNOG00000022141.6
Q5XIK8
Ctdspl2
3
iEKPD-Ran-0527
ENSRNOG00000004477.7
Q5FWT7
Ublcp1
4
iEKPD-Ran-1314
ENSRNOG00000061474.1
A0A0G2K0J7
Ctdp1
5
iEKPD-Ran-0525
ENSRNOG00000015295.6
B1WC24
Ctdsp1
6
iEKPD-Ran-0526
ENSRNOG00000047598.1
M0R5X1
Ctdsp2
7
iEKPD-Ran-0517
ENSRNOG00000046257.2
M0R4W4
Ctdspl
8
iEKPD-Ran-0533
ENSRNOG00000037638.4
D3ZJX5
Timm50