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Protein

Proteasome subunit alpha type-2

Gene

PSMA2

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. PSMA2 may have a potential regulatory effect on another component(s) of the proteasome complex through tyrosine phosphorylation (By similarity).By similarity

Catalytic activityi

Cleavage of peptide bonds with very broad specificity.PROSITE-ProRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

ReactomeiREACT_274004. degradation of DVL.
REACT_276477. ER-Phagosome pathway.
REACT_280521. Activation of NF-kappaB in B cells.
REACT_282220. Asymmetric localization of PCP proteins.
REACT_290505. SCF(Skp2)-mediated degradation of p27/p21.
REACT_291730. Separation of Sister Chromatids.
REACT_293325. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.
REACT_295102. CDT1 association with the CDC6:ORC:origin complex.
REACT_297209. Degradation of beta-catenin by the destruction complex.
REACT_302851. CDK-mediated phosphorylation and removal of Cdc6.
REACT_304977. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_306095. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_307496. Hedgehog ligand biogenesis.
REACT_308391. Ubiquitin-dependent degradation of Cyclin D1.
REACT_311810. Hedgehog 'on' state.
REACT_314321. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_321728. Regulation of ornithine decarboxylase (ODC).
REACT_326365. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_327729. Degradation of GLI2 by the proteasome.
REACT_328795. Orc1 removal from chromatin.
REACT_329551. degradation of AXIN.
REACT_329646. AUF1 (hnRNP D0) destabilizes mRNA.
REACT_330101. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_333090. GLI3 is processed to GLI3R by the proteasome.
REACT_335347. Cdc20:Phospho-APC/C mediated degradation of Cyclin A.
REACT_338497. APC/C:Cdc20 mediated degradation of Securin.
REACT_350460. Regulation of activated PAK-2p34 by proteasome mediated degradation.
REACT_357698. Dectin-1 mediated noncanonical NF-kB signaling.
REACT_358073. Degradation of GLI1 by the proteasome.
REACT_362031. CLEC7A (Dectin-1) signaling.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit alpha type-2 (EC:3.4.25.1)
Gene namesi
Name:PSMA2
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
ProteomesiUP000009136 Componenti: Chromosome 4

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 234233Proteasome subunit alpha type-2PRO_0000239865Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei2 – 21N-acetylalanineBy similarity
Modified residuei24 – 241PhosphotyrosineBy similarity
Modified residuei70 – 701N6-acetyllysineBy similarity
Modified residuei76 – 761PhosphotyrosineBy similarity
Modified residuei171 – 1711N6-acetyllysineBy similarity

Post-translational modificationi

Phosphorylated on tyrosine residues; which may be important for nuclear import.By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiQ3T0Y5.
PRIDEiQ3T0Y5.

Interactioni

Subunit structurei

The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is composed of 28 subunits that are arranged in four stacked rings, resulting in a barrel-shaped structure. The two end rings are each formed by seven alpha subunits, and the two central rings are each formed by seven beta subunits. The catalytic chamber with the active sites is on the inside of the barrel.

Protein-protein interaction databases

BioGridi195708. 3 interactions.
STRINGi9913.ENSBTAP00000001309.

Structurei

Secondary structure

1
234
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi8 – 103Combined sources
Helixi20 – 3011Combined sources
Beta strandi35 – 395Combined sources
Beta strandi44 – 496Combined sources
Beta strandi55 – 573Combined sources
Beta strandi64 – 7815Combined sources
Helixi80 – 10122Combined sources
Helixi107 – 12014Combined sources
Turni121 – 1233Combined sources
Beta strandi131 – 1399Combined sources
Beta strandi141 – 1499Combined sources
Beta strandi155 – 16410Combined sources
Helixi167 – 17711Combined sources
Helixi184 – 19613Combined sources
Beta strandi205 – 21410Combined sources
Beta strandi217 – 2204Combined sources
Helixi223 – 2308Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1IRUX-ray2.75B/P2-234[»]
ProteinModelPortaliQ3T0Y5.
SMRiQ3T0Y5. Positions 2-234.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ3T0Y5.

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG0638.
GeneTreeiENSGT00550000074870.
HOGENOMiHOG000091085.
HOVERGENiHBG003005.
InParanoidiQ3T0Y5.
KOiK02726.
OMAiWKATALG.
OrthoDBiEOG71VSTG.
TreeFamiTF106207.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR000426. Proteasome_asu_N.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
[Graphical view]
SMARTiSM00948. Proteasome_A_N. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q3T0Y5-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAERGYSFSL TTFSPSGKLV QIEYALAAVA GGAPSVGIKA ANGVVLATEK
60 70 80 90 100
KQKSILYDER SVHKVEPITK HIGLVYSGMG PDYRVLVHRA RKLAQQYYLV
110 120 130 140 150
YQEPIPTAQL VQRVASVMQE YTQSGGVRPF GVSLLICGWN EGRPYLFQSD
160 170 180 190 200
PSGAYFAWKA TAMGKNYVNG KTFLEKRYNE DLELEDAIHT AILTLKESFE
210 220 230
GQMTEDNIEV GICNEAGFRR LTPTEVKDYL AAIA
Length:234
Mass (Da):25,899
Last modified:January 23, 2007 - v3
Checksum:i63CB56A233583836
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC102206 mRNA. Translation: AAI02207.1.
RefSeqiNP_001029834.1. NM_001034662.2.
UniGeneiBt.49020.

Genome annotation databases

EnsembliENSBTAT00000001309; ENSBTAP00000001309; ENSBTAG00000000990.
GeneIDi539141.
KEGGibta:539141.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC102206 mRNA. Translation: AAI02207.1.
RefSeqiNP_001029834.1. NM_001034662.2.
UniGeneiBt.49020.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1IRUX-ray2.75B/P2-234[»]
ProteinModelPortaliQ3T0Y5.
SMRiQ3T0Y5. Positions 2-234.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi195708. 3 interactions.
STRINGi9913.ENSBTAP00000001309.

Proteomic databases

PaxDbiQ3T0Y5.
PRIDEiQ3T0Y5.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000001309; ENSBTAP00000001309; ENSBTAG00000000990.
GeneIDi539141.
KEGGibta:539141.

Organism-specific databases

CTDi5683.

Phylogenomic databases

eggNOGiCOG0638.
GeneTreeiENSGT00550000074870.
HOGENOMiHOG000091085.
HOVERGENiHBG003005.
InParanoidiQ3T0Y5.
KOiK02726.
OMAiWKATALG.
OrthoDBiEOG71VSTG.
TreeFamiTF106207.

Enzyme and pathway databases

ReactomeiREACT_274004. degradation of DVL.
REACT_276477. ER-Phagosome pathway.
REACT_280521. Activation of NF-kappaB in B cells.
REACT_282220. Asymmetric localization of PCP proteins.
REACT_290505. SCF(Skp2)-mediated degradation of p27/p21.
REACT_291730. Separation of Sister Chromatids.
REACT_293325. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.
REACT_295102. CDT1 association with the CDC6:ORC:origin complex.
REACT_297209. Degradation of beta-catenin by the destruction complex.
REACT_302851. CDK-mediated phosphorylation and removal of Cdc6.
REACT_304977. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_306095. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_307496. Hedgehog ligand biogenesis.
REACT_308391. Ubiquitin-dependent degradation of Cyclin D1.
REACT_311810. Hedgehog 'on' state.
REACT_314321. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_321728. Regulation of ornithine decarboxylase (ODC).
REACT_326365. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_327729. Degradation of GLI2 by the proteasome.
REACT_328795. Orc1 removal from chromatin.
REACT_329551. degradation of AXIN.
REACT_329646. AUF1 (hnRNP D0) destabilizes mRNA.
REACT_330101. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_333090. GLI3 is processed to GLI3R by the proteasome.
REACT_335347. Cdc20:Phospho-APC/C mediated degradation of Cyclin A.
REACT_338497. APC/C:Cdc20 mediated degradation of Securin.
REACT_350460. Regulation of activated PAK-2p34 by proteasome mediated degradation.
REACT_357698. Dectin-1 mediated noncanonical NF-kB signaling.
REACT_358073. Degradation of GLI1 by the proteasome.
REACT_362031. CLEC7A (Dectin-1) signaling.

Miscellaneous databases

EvolutionaryTraceiQ3T0Y5.
NextBioi20877807.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR000426. Proteasome_asu_N.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
[Graphical view]
SMARTiSM00948. Proteasome_A_N. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. NIH - Mammalian Gene Collection (MGC) project
    Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Strain: Crossbred X Angus.
    Tissue: Ileum.
  2. "The structure of the mammalian 20S proteasome at 2.75 A resolution."
    Unno M., Mizushima T., Morimoto Y., Tomisugi Y., Tanaka K., Yasuoka N., Tsukihara T.
    Structure 10:609-618(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: X-RAY CRYSTALLOGRAPHY (2.75 ANGSTROMS) OF COMPLEX WITH THE 20S PROTEASOME.

Entry informationi

Entry nameiPSA2_BOVIN
AccessioniPrimary (citable) accession number: Q3T0Y5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 13, 2006
Last sequence update: January 23, 2007
Last modified: June 24, 2015
This is version 85 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. Peptidase families
    Classification of peptidase families and list of entries
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.