Danio rerio      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 (4 or Unreviewed (8

No.StatusEKPD IDGene IDGene Name
1
EPS-DAR-00117
ENSDARG00000061587
ctdspl2a; zgc:154017
2
EPS-DAR-00127
ENSDARG00000044492
zgc:86634; ublcp1
3
EPS-DAR-00128
ENSDARG00000017522
ctdp1
4
EPS-DAR-00124
ENSDARG00000036102
ctdsp2
5
EPS-DAR-00122
ENSDARG00000071673
ctdspla
6
EPS-DAR-00121
ENSDARG00000062116
ctdsplb
7
EPS-DAR-00123
ENSDARG00000040674
CH211-247B3.1-001; CH211-247B3.1; ctdsp1
8
EPS-DAR-00125
ENSDARG00000089646
BX323045.2; LOC571337; BX323045.3
9
EPS-DAR-00120
ENSDARG00000016519
ctdnep1a; dullard
10
EPS-DAR-00126
ENSDARG00000031098
timm50
11
EPS-DAR-00119
ENSDARG00000035781
ctdnep1b
12
EPS-DAR-00118
ENSDARG00000060586
ctdspl2; ctdspl2b; zgc:162265