Loxodonta africana      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-Loa-0519
ENSLAFG00000000746.2
G3SMA7
CTDNEP1
2
iEKPD-Loa-1268
ENSLAFG00000018621.3
G3TL65
CTDP1
3
iEKPD-Loa-0513
ENSLAFG00000023374.2
G3TNY2
CTDSP1
4
iEKPD-Loa-0512
ENSLAFG00000010800.3
G3T6A5
CTDSP2
5
iEKPD-Loa-0515
ENSLAFG00000006997.3
G3SZ97
CTDSPL
6
iEKPD-Loa-0523
ENSLAFG00000009263.2
G3T3E4
CTDSPL2
7
iEKPD-Loa-0527
ENSLAFG00000023081.2
G3U4Y5
TIMM50
8
iEKPD-Loa-0526
ENSLAFG00000011908.3
G3T8E1
UBLCP1