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Q8MJ46 (PP1G_CANFA) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 75. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Serine/threonine-protein phosphatase PP1-gamma catalytic subunit

Short name=PP-1G
EC=3.1.3.16
Alternative name(s):
Protein phosphatase 1C catalytic subunit
Gene names
Name:PPP1CC
OrganismCanis familiaris (Dog) (Canis lupus familiaris) [Reference proteome]
Taxonomic identifier9615 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeCanis

Protein attributes

Sequence length323 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

Function

Protein phosphatase that associates with over 200 regulatory proteins to form highly specific holoenzymes which dephosphorylate hundreds of biological targets. Protein phosphatase 1 (PP1) is essential for cell division, and participates in the regulation of glycogen metabolism, muscle contractility and protein synthesis. Dephosphorylates RPS6KB1. Involved in regulation of ionic conductances and long-term synaptic plasticity. May play an important role in dephosphorylating substrates such as the postsynaptic density-associated Ca2+/calmodulin dependent protein kinase II. Component of the PTW/PP1 phosphatase complex, which plays a role in the control of chromatin structure and cell cycle progression during the transition from mitosis into interphase By similarity.

Catalytic activity

[a protein]-serine/threonine phosphate + H2O = [a protein]-serine/threonine + phosphate.

Cofactor

Binds 1 iron ion per subunit By similarity.

Binds 1 manganese ion per subunit By similarity.

Enzyme regulation

Inactivated by binding to URI1 By similarity.

Subunit structure

PP1 comprises a catalytic subunit, PPP1CA, PPP1CB or PPP1CC, which is folded into its native form by inhibitor 2 and glycogen synthetase kinase 3, and then complexed to one or several targeting or regulatory subunits. PPP1R12A, PPP1R12B and PPP1R12C mediate binding to myosin. PPP1R3A (in skeletal muscle), PPP1R3B (in liver), PPP1R3C, PPP1R3D and PPP1R3F (in brain) mediate binding to glycogen. PPP1R15A and PPP1R15B mediate binding to EIF2S1. Part of a complex containing PPP1R15B, PP1 and NCK1/2. Component of the MLL5-L complex, at least composed of KMT2E/MLL5, STK38, PPP1CA, PPP1CB, PPP1CC, HCFC1, ACTB and OGT. Interacts with PPP1R3B, PPP1R7 and CDCA2. Interacts with IKFZ1; the interaction targets PPP1CC to pericentromeric heterochromatin, dephosphorylates IKAROS, stabilizes it and prevents it from degradation. Interacts with NOM1 and PPP1R8. Component of the PTW/PP1 phosphatase complex, composed of PPP1R10/PNUTS, TOX4, WDR82, and PPP1CA or PPP1CB or PPP1CC. Interacts with PPP1R8. Interacts with NEK2. Interacts with PPP1R42; the interaction is direct. Interacts with URI1; the interaction is phosphorylation-dependent and occurs in a growth factor-dependent manner By similarity.

Subcellular location

Cytoplasm By similarity. Nucleus By similarity. Cleavage furrow By similarity. Nucleusnucleolus By similarity. Nucleusnucleoplasm By similarity. Chromosomecentromerekinetochore By similarity. Nucleus speckle By similarity. Midbody By similarity. Mitochondrion By similarity. Note: Rapidly exchanges between the nucleolar, nucleoplasmic and cytoplasmic compartments. Highly mobile in cells and can be relocalized through interaction with targeting subunits. In the presence of PPP1R8 relocalizes from the nucleolus to nuclear speckles. Shows a dynamic targeting to specific sites throughout the cell cycle. Highly concentrated in nucleoli of interphase cells and localizes at kinetochores early in mitosis. Relocalization to chromosome-containing regions occurs at the transition from early to late anaphase. Also accumulates at the cleavage furrow and midbody by telophase. Colocalizes with SPZ1 in the nucleus. Colocalizes with URI1 at mitochondrion By similarity.

Post-translational modification

Phosphorylated by NEK2 By similarity.

Sequence similarities

Belongs to the PPP phosphatase family. PP-1 subfamily.

Ontologies

Keywords
   Biological processCarbohydrate metabolism
Cell cycle
Cell division
Glycogen metabolism
   Cellular componentCentromere
Chromosome
Cytoplasm
Kinetochore
Mitochondrion
Nucleus
   LigandIron
Manganese
Metal-binding
   Molecular functionHydrolase
Protein phosphatase
   PTMAcetylation
Phosphoprotein
   Technical termComplete proteome
Reference proteome
Gene Ontology (GO)
   Biological_processcell cycle

Inferred from electronic annotation. Source: UniProtKB-KW

cell division

Inferred from electronic annotation. Source: UniProtKB-KW

dephosphorylation

Inferred from sequence or structural similarity. Source: GOC

glycogen metabolic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Cellular_componentPTW/PP1 phosphatase complex

Inferred from sequence or structural similarity. Source: UniProtKB

cleavage furrow

Inferred from electronic annotation. Source: UniProtKB-SubCell

condensed chromosome kinetochore

Inferred from electronic annotation. Source: UniProtKB-SubCell

midbody

Inferred from electronic annotation. Source: UniProtKB-SubCell

mitochondrion

Inferred from sequence or structural similarity. Source: UniProtKB

nuclear speck

Inferred from electronic annotation. Source: UniProtKB-SubCell

nucleolus

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular_functionmetal ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

protein serine/threonine phosphatase activity

Inferred from sequence or structural similarity. Source: UniProtKB

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed By similarity
Chain2 – 323322Serine/threonine-protein phosphatase PP1-gamma catalytic subunit
PRO_0000058786

Sites

Active site1251Proton donor By similarity
Metal binding641Iron By similarity
Metal binding661Iron By similarity
Metal binding921Iron By similarity
Metal binding921Manganese By similarity
Metal binding1241Manganese By similarity
Metal binding1731Manganese By similarity
Metal binding2481Manganese By similarity

Amino acid modifications

Modified residue21N-acetylalanine By similarity
Modified residue3071Phosphothreonine By similarity

Sequences

Sequence LengthMass (Da)Tools
Q8MJ46 [UniParc].

Last modified October 1, 2002. Version 1.
Checksum: 8DD287FA615B2E41

FASTA32337,015
        10         20         30         40         50         60 
MADIDKLNID SIIQRLLEVR GSKPGKNVQL QENEIRGLCL KSREIFLSQP ILLELEAPLK 

        70         80         90        100        110        120 
ICGDIHGQYY DLLRLFEYGG FPPESNYLFL GDYVDRGKQS LETICLLLAY KIKYPENFFL 

       130        140        150        160        170        180 
LRGNHECVSI NRIYGFYDEC KRRYNIKLWK TFTDCFNCLP IAAIVDEKIF CCHGGLSPDL 

       190        200        210        220        230        240 
QSMEQIRRIM RPTDVPDQGL LCDLLWSDPD KDVLGWGETD RGVSFTFGAE VVAKFLHKHD 

       250        260        270        280        290        300 
LDLICRAHQV VEDGYEFFAK RQLVTLFSAP NYCGEFDNAG AMMSVDETLM CSFQILKPAE 

       310        320 
KKKPNATRPV TPLRGMITKQ AKK 

« Hide

References

[1]"Cloning and sequencing of catalytic subunit of protein phosphatase 1 gamma isoform from dog heart."
Mishra S., Tiwari N., Rastogi S., Sabbah H.N., Gupta R.C.
Submitted (JUN-2002) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Tissue: Heart.

Web resources

Protein Spotlight

The things we forget - Issue 32 of March 2003

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AF525130 mRNA. Translation: AAM88379.1.
RefSeqNP_001003033.1. NM_001003033.1.
UniGeneCfa.451.

3D structure databases

ProteinModelPortalQ8MJ46.
SMRQ8MJ46. Positions 6-300.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING9615.ENSCAFP00000030520.

Proteomic databases

PaxDbQ8MJ46.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID403557.
KEGGcfa:403557.

Organism-specific databases

CTD5501.

Phylogenomic databases

eggNOGCOG0639.
HOGENOMHOG000172697.
HOVERGENHBG000216.
KOK06269.

Family and domain databases

InterProIPR004843. Calcineurin-like_PHP_apaH.
IPR006186. Ser/Thr-sp_prot-phosphatase.
[Graphical view]
PfamPF00149. Metallophos. 1 hit.
[Graphical view]
PRINTSPR00114. STPHPHTASE.
SMARTSM00156. PP2Ac. 1 hit.
[Graphical view]
PROSITEPS00125. SER_THR_PHOSPHATASE. 1 hit.
[Graphical view]
ProtoNetSearch...

Other

NextBio20817066.

Entry information

Entry namePP1G_CANFA
AccessionPrimary (citable) accession number: Q8MJ46
Entry history
Integrated into UniProtKB/Swiss-Prot: April 26, 2005
Last sequence update: October 1, 2002
Last modified: April 16, 2014
This is version 75 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Protein Spotlight

Protein Spotlight articles and cited UniProtKB/Swiss-Prot entries