Oreochromis niloticus      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 12 genes.  Reviewed (0 or Unreviewed (12

No.StatusEKPD IDGene IDGene Name
1
EPS-ORN-00086
ENSONIG00000018951
CTDNEP1
2
EPS-ORN-00093
ENSONIG00000001216
TIMM50
3
EPS-ORN-00088
ENSONIG00000005811
CTDSPL (1 of 2)
4
EPS-ORN-00091
ENSONIG00000016535
CTDSP2
5
EPS-ORN-00094
ENSONIG00000008623
UBLCP1
6
EPS-ORN-00092
ENSONIG00000012681
LOC100693172
7
EPS-ORN-00095
ENSONIG00000007685
CTDP1
8
EPS-ORN-00090
ENSONIG00000004580
CTDSP1 (2 of 2)
9
EPS-ORN-00087
ENSONIG00000015609
CTDSPL (2 of 2)
10
EPS-ORN-00089
ENSONIG00000012356
CTDSP1 (1 of 2)
11
EPS-ORN-00085
ENSONIG00000008400
CTDSPL2 (2 of 2)
12
EPS-ORN-00084
ENSONIG00000006240
CTDSPL2 (1 of 2)