Ailuropoda melanoleuca      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-Aim-0505
ENSAMEG00000016529.1
G1MDN1
CTDNEP1
2
iEKPD-Aim-1273
ENSAMEG00000010355.1
G1LUZ4
CTDP1
3
iEKPD-Aim-0506
ENSAMEG00000003007.1
G1L8E7
CTDSP1
4
iEKPD-Aim-0507
ENSAMEG00000005522.1
G1LG15
CTDSP2
5
iEKPD-Aim-0504
ENSAMEG00000017860.1
D2GZR2
CTDSPL
6
iEKPD-Aim-0521
ENSAMEG00000015120.1
G1M9D1
CTDSPL2
7
iEKPD-Aim-0509
ENSAMEG00000008353.1
D2HX74
TIMM50
8
iEKPD-Aim-0503
ENSAMEG00000006496.1
G1LIW6
UBLCP1