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P63331

- PP2AA_RAT

UniProt

P63331 - PP2AA_RAT

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Protein
Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
Gene
Ppp2ca
Organism
Rattus norvegicus (Rat)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

PP2A is the major phosphatase for microtubule-associated proteins (MAPs). PP2A can modulate the activity of phosphorylase B kinase casein kinase 2, mitogen-stimulated S6 kinase, and MAP-2 kinase. Cooperates with SGOL2 to protect centromeric cohesin from separase-mediated cleavage in oocytes specifically during meiosis I. Activates RAF1 by dephosphorylating it at 'Ser-259' By similarity.

Catalytic activityi

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

Cofactori

Binds 2 manganese ions per subunit By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi57 – 571Manganese 1 By similarity
Metal bindingi59 – 591Manganese 1 By similarity
Metal bindingi85 – 851Manganese 1 By similarity
Metal bindingi85 – 851Manganese 2 By similarity
Metal bindingi117 – 1171Manganese 2 By similarity
Active sitei118 – 1181Proton donor By similarity
Metal bindingi167 – 1671Manganese 2 By similarity
Metal bindingi241 – 2411Manganese 2 By similarity

GO - Molecular functioni

  1. metal ion binding Source: UniProtKB-KW
  2. protein C-terminus binding Source: RGD
  3. protein binding Source: IntAct
  4. protein dimerization activity Source: MGI
  5. protein heterodimerization activity Source: UniProtKB
  6. protein serine/threonine phosphatase activity Source: RGD
Complete GO annotation...

GO - Biological processi

  1. meiotic nuclear division Source: UniProtKB-KW
  2. mesoderm development Source: Ensembl
  3. negative regulation of epithelial to mesenchymal transition Source: Ensembl
  4. positive regulation of protein serine/threonine kinase activity Source: Ensembl
  5. protein dephosphorylation Source: RGD
  6. protein heterotrimerization Source: MGI
  7. regulation of protein autophosphorylation Source: MGI
  8. regulation of protein catabolic process Source: MGI
  9. regulation of protein phosphorylation Source: MGI
  10. regulation of receptor activity Source: MGI
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protein phosphatase

Keywords - Biological processi

Meiosis

Keywords - Ligandi

Manganese, Metal-binding

Enzyme and pathway databases

ReactomeiREACT_194781. Separation of Sister Chromatids.
REACT_198369. Initiation of Nuclear Envelope Reformation.
REACT_198611. Resolution of Sister Chromatid Cohesion.
REACT_198842. MASTL Facilitates Mitotic Progression.
REACT_199007. Spry regulation of FGF signaling.
REACT_216976. disassembly of the destruction complex and recruitment of AXIN to the membrane.
REACT_225694. Glycolysis.

Names & Taxonomyi

Protein namesi
Recommended name:
Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform (EC:3.1.3.16)
Short name:
PP2A-alpha
Gene namesi
Name:Ppp2ca
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus
ProteomesiUP000002494: Chromosome 10

Organism-specific databases

RGDi3380. Ppp2ca.

Subcellular locationi

Cytoplasm By similarity. Nucleus By similarity. Chromosomecentromere By similarity. Cytoplasmcytoskeletonspindle pole By similarity
Note: In prometaphase cells, but not in anaphase cells, localizes at centromeres. During mitosis, also found at spindle poles. Centromeric localization requires the presence of SGOL2 By similarity.

GO - Cellular componenti

  1. chromosome, centromeric region Source: UniProtKB-SubCell
  2. cytosol Source: Ensembl
  3. nucleus Source: UniProtKB-SubCell
  4. plasma membrane Source: Ensembl
  5. protein phosphatase type 2A complex Source: Ensembl
  6. spindle pole Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Centromere, Chromosome, Cytoplasm, Cytoskeleton, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 309309Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
PRO_0000058843Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei307 – 3071Phosphotyrosine By similarity
Modified residuei309 – 3091Leucine methyl ester By similarity

Post-translational modificationi

Reversibly methyl esterified on Leu-309 by leucine carboxyl methyltransferase 1 (Lcmt1) and protein phosphatase methylesterase 1 (Ppme1). Carboxyl methylation influences the affinity of the catalytic subunit for the different regulatory subunits, thereby modulating the PP2A holoenzyme's substrate specificity, enzyme activity and cellular localization By similarity.
Phosphorylation of either threonine (by autophosphorylation-activated protein kinase) or tyrosine results in inactivation of the phosphatase. Auto-dephosphorylation has been suggested as a mechanism for reactivation By similarity.

Keywords - PTMi

Methylation, Phosphoprotein

Proteomic databases

PaxDbiP63331.
PRIDEiP63331.

2D gel databases

World-2DPAGE0004:P63331.

PTM databases

PhosphoSiteiP63331.

Expressioni

Gene expression databases

GenevestigatoriP63331.

Interactioni

Subunit structurei

PP2A consists of a common heterodimeric core enzyme, composed of PPP2CA a 36 kDa catalytic subunit (subunit C) and PPP2R1A a 65 kDa constant regulatory subunit (PR65 or subunit A), that associates with a variety of regulatory subunits. Proteins that associate with the core dimer include three families of regulatory subunits B (the R2/B/PR55/B55, R3/B''/PR72/PR130/PR59 and R5/B'/B56 families), the 48 kDa variable regulatory subunit, viral proteins, and cell signaling molecules. Interacts with NXN; the interaction is direct. Interacts with TP53, SGOL1 and SGOL2. Interacts with AXIN1; the interaction dephosphorylates AXIN1 By similarity. Interacts with PIM3; this interaction promotes dephosphorylation, ubiquitination and proteasomal degradation of PIM3 By similarity. Interacts with RAF1. Interacts with GSK3B (via C2 domain) By similarity. Interaction with IGBP1 protects unassembled PPP2CA from degradative ubiquitination By similarity.

Binary interactionsi

WithEntry#Exp.IntActNotes
ANP32AP396872EBI-7050205,EBI-359234From a different organism.
Dpysl2P479422EBI-7050205,EBI-917570
TIPRLO756633EBI-7050205,EBI-1054735From a different organism.

Protein-protein interaction databases

BioGridi246804. 2 interactions.
IntActiP63331. 8 interactions.
MINTiMINT-199689.

Structurei

3D structure databases

ProteinModelPortaliP63331.
SMRiP63331. Positions 2-309.

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0639.
GeneTreeiENSGT00550000074618.
HOGENOMiHOG000172696.
HOVERGENiHBG000216.
InParanoidiP63331.
KOiK04382.
OMAiQVKTLCD.
OrthoDBiEOG74N5H2.
PhylomeDBiP63331.
TreeFamiTF105559.

Family and domain databases

Gene3Di3.60.21.10. 1 hit.
InterProiIPR004843. Calcineurin-like_PHP_apaH.
IPR029052. Metallo-depent_PP-like.
IPR006186. Ser/Thr-sp_prot-phosphatase.
[Graphical view]
PfamiPF00149. Metallophos. 1 hit.
[Graphical view]
PRINTSiPR00114. STPHPHTASE.
SMARTiSM00156. PP2Ac. 1 hit.
[Graphical view]
SUPFAMiSSF56300. SSF56300. 1 hit.
PROSITEiPS00125. SER_THR_PHOSPHATASE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P63331-1 [UniParc]FASTAAdd to Basket

« Hide

MDEKLFTKEL DQWIEQLNEC KQLSESQVKS LCEKAKEILT KESNVQEVRC    50
PVTVCGDVHG QFHDLMELFR IGGKSPDTNY LFMGDYVDRG YYSVETVTLL 100
VALKVRYRER ITILRGNHES RQITQVYGFY DECLRKYGNA NVWKYFTDLF 150
DYLPLTALVD GQIFCLHGGL SPSIDTLDHI RALDRLQEVP HEGPMCDLLW 200
SDPDDRGGWG ISPRGAGYTF GQDISETFNH ANGLTLVSRA HQLVMEGYNW 250
CHDRNVVTIF SAPNYCYRCG NQAAIMELDD TLKYSFLQFD PAPRRGEPHV 300
TRRTPDYFL 309
Length:309
Mass (Da):35,608
Last modified:October 11, 2004 - v1
Checksum:i8DC11276E6DF9E33
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X16043 mRNA. Translation: CAA34166.1.
X14159 mRNA. Translation: CAB42983.1.
M33114 mRNA. Translation: AAA41904.1.
BC070914 mRNA. Translation: AAH70914.1.
BC072531 mRNA. Translation: AAH72531.1.
PIRiS06592. PART2A.
RefSeqiNP_058735.1. NM_017039.2.
UniGeneiRn.1271.

Genome annotation databases

EnsembliENSRNOT00000007621; ENSRNOP00000007621; ENSRNOG00000005389.
GeneIDi24672.
KEGGirno:24672.
UCSCiRGD:3380. rat.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X16043 mRNA. Translation: CAA34166.1 .
X14159 mRNA. Translation: CAB42983.1 .
M33114 mRNA. Translation: AAA41904.1 .
BC070914 mRNA. Translation: AAH70914.1 .
BC072531 mRNA. Translation: AAH72531.1 .
PIRi S06592. PART2A.
RefSeqi NP_058735.1. NM_017039.2.
UniGenei Rn.1271.

3D structure databases

ProteinModelPortali P63331.
SMRi P63331. Positions 2-309.
ModBasei Search...

Protein-protein interaction databases

BioGridi 246804. 2 interactions.
IntActi P63331. 8 interactions.
MINTi MINT-199689.

Chemistry

BindingDBi P63331.

PTM databases

PhosphoSitei P63331.

2D gel databases

World-2DPAGE 0004:P63331.

Proteomic databases

PaxDbi P63331.
PRIDEi P63331.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSRNOT00000007621 ; ENSRNOP00000007621 ; ENSRNOG00000005389 .
GeneIDi 24672.
KEGGi rno:24672.
UCSCi RGD:3380. rat.

Organism-specific databases

CTDi 5515.
RGDi 3380. Ppp2ca.

Phylogenomic databases

eggNOGi COG0639.
GeneTreei ENSGT00550000074618.
HOGENOMi HOG000172696.
HOVERGENi HBG000216.
InParanoidi P63331.
KOi K04382.
OMAi QVKTLCD.
OrthoDBi EOG74N5H2.
PhylomeDBi P63331.
TreeFami TF105559.

Enzyme and pathway databases

Reactomei REACT_194781. Separation of Sister Chromatids.
REACT_198369. Initiation of Nuclear Envelope Reformation.
REACT_198611. Resolution of Sister Chromatid Cohesion.
REACT_198842. MASTL Facilitates Mitotic Progression.
REACT_199007. Spry regulation of FGF signaling.
REACT_216976. disassembly of the destruction complex and recruitment of AXIN to the membrane.
REACT_225694. Glycolysis.

Miscellaneous databases

NextBioi 295524.

Gene expression databases

Genevestigatori P63331.

Family and domain databases

Gene3Di 3.60.21.10. 1 hit.
InterProi IPR004843. Calcineurin-like_PHP_apaH.
IPR029052. Metallo-depent_PP-like.
IPR006186. Ser/Thr-sp_prot-phosphatase.
[Graphical view ]
Pfami PF00149. Metallophos. 1 hit.
[Graphical view ]
PRINTSi PR00114. STPHPHTASE.
SMARTi SM00156. PP2Ac. 1 hit.
[Graphical view ]
SUPFAMi SSF56300. SSF56300. 1 hit.
PROSITEi PS00125. SER_THR_PHOSPHATASE. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "Nucleotide sequence of a rat heart cDNA encoding the isotype alpha of the catalytic subunit of protein phosphatase 2A."
    Posas F., Arino J.
    Nucleic Acids Res. 17:8369-8369(1989) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Heart.
  2. "Molecular cloning of cDNA for the catalytic subunit of rat liver type 2A protein phosphatase, and detection of high levels of expression of the gene in normal and cancer cells."
    Kitagawa Y., Tahira T., Ikeda I., Kikuchi K., Tsuiki S., Sugimura T., Nagao M.
    Biochim. Biophys. Acta 951:123-129(1988) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Liver.
  3. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
    The MGC Project Team
    Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Tissue: Heart and Lung.

Entry informationi

Entry nameiPP2AA_RAT
AccessioniPrimary (citable) accession number: P63331
Secondary accession number(s): O88591, P13353
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 11, 2004
Last sequence update: October 11, 2004
Last modified: September 3, 2014
This is version 92 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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