Nicotiana attenuata      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 12 genes.  Reviewed (0 or Unreviewed (12

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Nia-0700
A4A49_00788
A0A1J6JM17
A4A49_00788
2
iEKPD-Nia-0705
A4A49_02146
A0A1J6IIT9
A4A49_02146
3
iEKPD-Nia-0720
A4A49_09493
A0A1J6IP67
A4A49_09493
4
iEKPD-Nia-0782
A4A49_38196
A0A1J6KNT5
A4A49_38196
5
iEKPD-Nia-0796
A4A49_62934
A0A1J6IRH7
A4A49_62934
6
iEKPD-Nia-0709
A4A49_03910
A0A1J6HXG0
CPL1
7
iEKPD-Nia-0789
A4A49_41294
A0A1J6L5K3
CPL2
8
iEKPD-Nia-1033
A4A49_24011
A0A1J6KV98
CPL4
9
iEKPD-Nia-0704
A4A49_01109
A0A1J6IUI3
TIM50_0
10
iEKPD-Nia-0787
A4A49_40256
A0A1J6KL27
TIM50_2
11
iEKPD-Nia-0702
A4A49_00878
A0A1J6IUS2
TIM50_3
12
iEKPD-Nia-0790
A4A49_42503
A0A1J6JTK3
TIM50_4