Function and Biology

Ki67-PP1g (protein phosphatase 1, gamma isoform) holoenzyme complex

Source organism: Homo sapiens
Biochemical function: metal ion binding
Biological process: positive regulation of glial cell proliferation
Cellular component: glutamatergic synapse

EC 3.1.3.16: Protein-serine/threonine phosphatase

Reaction catalysed:
[a protein]-serine/threonine phosphate + H(2)O = [a protein]-serine/threonine + phosphate
Systematic name:
Phosphoprotein phosphohydrolase
Alternative Name(s):
  • 3-hydroxy 3-methylglutaryl coenzymeA reductase phosphatase
  • Aspergillus awamori acid protein phosphatase
  • BCKDH phosphatase
  • Branched-chain alpha-keto acid dehydrogenase phosphatase
  • Calcineurin
  • Casein phosphatase
  • HMG-CoA reductase phosphatase
  • Phosphatase 2A
  • Phosphatase 2B
  • Phosphatase C-II
  • Phosphatase H-II
  • Phosphatase I
  • Phosphatase IB
  • Phosphatase II
  • Phosphatase III
  • Phosphatase IV
  • Phosphatase SP
  • Phosphoprotein phosphatase
  • Phosphopyruvate dehydrogenase phosphatase
  • Phosphospectrin phosphatase
  • Polycation modulated (PCM-) phosphatase
  • Protein D phosphatase
  • Protein phosphatase
  • Protein phosphatase-1
  • Protein phosphatase-2A
  • Protein phosphatase-2B
  • Protein phosphatase-2C
  • Serine/threonine specific protein phosphatase

Sequence families

Pfam Protein families (Pfam)
PF15276
Domain description: Protein phosphatase 1 binding
Occurring in:
  1. Proliferation marker protein Ki-67

PF00149
Domain description: Calcineurin-like phosphoesterase
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
The deposited structure of PDB entry 5j28 contains 2 copies of Pfam domain PF00149 (Calcineurin-like phosphoesterase) in Serine/threonine-protein phosphatase PP1-gamma catalytic subunit. Showing 1 copy in chain A.

PF16891
Domain description: Serine-threonine protein phosphatase N-terminal domain
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
The deposited structure of PDB entry 5j28 contains 2 copies of Pfam domain PF16891 (Serine-threonine protein phosphatase N-terminal domain) in Serine/threonine-protein phosphatase PP1-gamma catalytic subunit. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR006186
Domain description: Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
IPR029052
Domain description: Metallo-dependent phosphatase-like
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
IPR029334
Domain description: Protein phosphatase 1 binding domain
Occurring in:
  1. Proliferation marker protein Ki-67
IPR004843
Domain description: Calcineurin-like phosphoesterase domain, ApaH type
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
IPR031675
Domain description: Serine-threonine protein phosphatase, N-terminal
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit

Structure domain

CATH CATH domain
3.60.21.10
Class: Alpha Beta
Architecture: 4-Layer Sandwich
Topology: Purple Acid Phosphatase; chain A, domain 2
Homology: Purple Acid Phosphatase; chain A, domain 2
Occurring in:
  1. Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
The deposited structure of PDB entry 5j28 contains 2 copies of CATH domain 3.60.21.10 (Purple Acid Phosphatase; chain A, domain 2) in Serine/threonine-protein phosphatase PP1-gamma catalytic subunit. Showing 1 copy in chain A.