Physcomitrella patens      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-Php-0828
PP1S42_277V6
2
iEKPD-Php-0839
PP1S134_69V6
A9SXT5
PHYPADRAFT_137071
3
iEKPD-Php-0841
PP1S192_75V6
A9TA75
PHYPADRAFT_142504
4
iEKPD-Php-0851
PP1S221_74V6
A9TFS6
PHYPADRAFT_144931
5
iEKPD-Php-0840
PP1S362_10V6
A9TXM9
PHYPADRAFT_152342
6
iEKPD-Php-0868
PP1S31_351V6
A9RVP6
PHYPADRAFT_178673
7
iEKPD-Php-1298
PP1S316_11V6
A9TTN5
PHYPADRAFT_198166
8
iEKPD-Php-1302
PP1S49_248V6
A9S5I0
PHYPADRAFT_74853
9
iEKPD-Php-1301
PP1S152_31V6
A9T1Q3
PHYPADRAFT_86918
10
iEKPD-Php-0847
PP1S21_268V6
A9RQ29
PHYPA_001270