Gasterosteus aculeatus      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-GAA-00112
ENSGACG00000019398
CTDNEP1
2
EPS-GAA-00118
ENSGACG00000013476
TIMM50
3
EPS-GAA-00120
ENSGACG00000008676
CTDP1
4
EPS-GAA-00113
ENSGACG00000012774
CTDSPL (2 of 2)
5
EPS-GAA-00111
ENSGACG00000006281
CTDSPL2 (2 of 2); CTDSPL2 (1 of 2)
6
EPS-GAA-00116
ENSGACG00000003452
CTDSPL (1 of 2)
7
EPS-GAA-00110
ENSGACG00000015558
CTDSPL2 (2 of 2); CTDSPL2 (1 of 2)
8
EPS-GAA-00117
ENSGACG00000011678
CTDSP2
9
EPS-GAA-00115
ENSGACG00000014313
CTDSP1 (1 of 2)
10
EPS-GAA-00119
ENSGACG00000020456
UBLCP1
11
EPS-GAA-00114
ENSGACG00000002298
CTDSP1 (2 of 2)