Takifugu rubripes      Asp-Based PTP      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 a important role in cell survival in budding and fission yeasts. SCP1 preferentially dephosphorylate Ser5 in CTD domain of RNA polymerase II and play a role in the regulation of gene expression by controlling the transition from initiation/capping to processive transcript elongation (3). In addition, SCP1 also act 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 11 genes.  Reviewed (0 or Unreviewed (11

No.StatusEKPD IDGene IDGene Name
1
EPS-TAR-00113
ENSTRUG00000012998
CTDP1
2
EPS-TAR-00105
ENSTRUG00000010767
CTDSPL2 (2 of 2); CTDSPL2 (1 of 2)
3
EPS-TAR-00110
ENSTRUG00000000378
CTDSP2
4
EPS-TAR-00112
ENSTRUG00000014010
UBLCP1
5
EPS-TAR-00107
ENSTRUG00000008918
CTDSPL (1 of 2)
6
EPS-TAR-00109
ENSTRUG00000013497
CTDSP1 (1 of 2)
7
EPS-TAR-00111
ENSTRUG00000017548
CTDSPL (2 of 2)
8
EPS-TAR-00108
ENSTRUG00000011474
CTDNEP1
9
EPS-TAR-00104
ENSTRUG00000017282
CTDSPL2 (2 of 2); CTDSPL2 (1 of 2)
10
EPS-TAR-00114
ENSTRUG00000011423
TIMM50
11
EPS-TAR-00106
ENSTRUG00000004334
CTDSP1 (2 of 2)