Latimeria chalumnae      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 8 genes.  Reviewed (0 or Unreviewed (8

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Lac-1279
ENSLACG00000001930.1
H2ZXN9
CTDP1
2
iEKPD-Lac-0533
ENSLACG00000004556.1
H3A653
CTDSP1
3
iEKPD-Lac-0532
ENSLACG00000009091.2
H3AL00
CTDSP2
4
iEKPD-Lac-0531
ENSLACG00000004830.1
H3A708
CTDSPL
5
iEKPD-Lac-0588
ENSLACG00000010876.1
H3ART2
CTDSPL2
6
iEKPD-Lac-0512
ENSLACG00000013712.1
H3B104
PHOSPHO2
7
iEKPD-Lac-0544
ENSLACG00000008342.1
H3AII8
TIMM50
8
iEKPD-Lac-0537
ENSLACG00000006686.2
H3AD22
UBLCP1