Ostreococcus lucimarinus      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 10 genes.  Reviewed (0 or Unreviewed (10

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Osl-0134
OSTLU_10396
A4S258
OSTLU_10396
2
iEKPD-Osl-0140
OSTLU_14465
A4RTW3
OSTLU_14465
3
iEKPD-Osl-0322
OSTLU_31186
A4RW22
OSTLU_31186
4
iEKPD-Osl-0158
OSTLU_34411
A4RUZ3
OSTLU_34411
5
iEKPD-Osl-0168
OSTLU_6029
A4RR85
OSTLU_6029
6
iEKPD-Osl-0169
OSTLU_6261
A4RUU3
OSTLU_6261
7
iEKPD-Osl-0171
OSTLU_7101
A4RWV1
OSTLU_7101
8
iEKPD-Osl-0172
OSTLU_7767
A4SBH8
OSTLU_7767
9
iEKPD-Osl-0175
OSTLU_8327
A4S603
OSTLU_8327
10
iEKPD-Osl-0179
OSTLU_92682
A4RWV0
OSTLU_92682