Physcomitrella patens      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-PHP-00091
PP1S221_74V6
PHYPADRAFT_144931; A9TFS6_PHYPA
2
EPS-PHP-00089
PP1S49_248V6
PHYPADRAFT_74853; A9S5I0_PHYPA
3
EPS-PHP-00093
PP1S42_277V6
4
EPS-PHP-00084
PP1S192_75V6
PHYPADRAFT_142504; A9TA75_PHYPA
5
EPS-PHP-00085
PP1S134_69V6
A9SXT5_PHYPA; PHYPADRAFT_137071
6
EPS-PHP-00092
PP1S27_252V6
PHYPADRAFT_119001, PHYPADRAFT_205407; A9RTE8_PHYPA
7
EPS-PHP-00088
PP1S152_31V6
8
EPS-PHP-00090
PP1S316_11V6
9
EPS-PHP-00083
PP1S362_10V6
A9TXM9_PHYPA; PHYPADRAFT_152342
10
EPS-PHP-00086
PP1S35_260V6
PHYPADRAFT_121133; A9RY96_PHYPA
11
EPS-PHP-00087
PP1S21_268V6
PHYPADRAFT_204566; A9RQ29_PHYPA