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Protein

Proteasome subunit alpha

Gene

prcA

Organism
Streptomyces scabies (strain 87.22) (Streptomyces scabiei)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation.UniRule annotation

Catalytic activityi

Cleavage of peptide bonds with very broad specificity.UniRule annotation

Enzyme regulationi

The formation of the proteasomal ATPase ARC-20S proteasome complex, likely via the docking of the C-termini of ARC into the intersubunit pockets in the alpha-rings, may trigger opening of the gate for substrate entry. Interconversion between the open-gate and close-gate conformations leads to a dynamic regulation of the 20S proteasome proteolysis activity.UniRule annotation

Pathwayi

GO - Molecular functioni

  1. threonine-type endopeptidase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. modification-dependent protein catabolic process Source: UniProtKB-HAMAP
  2. proteasomal protein catabolic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

BioCyciSSCA680198:GJ76-7195-MONOMER.
UniPathwayiUPA00997.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit alphaUniRule annotation (EC:3.4.25.1UniRule annotation)
Alternative name(s):
20S proteasome alpha subunitUniRule annotation
Proteasome core protein PrcAUniRule annotation
Gene namesi
Name:prcAUniRule annotation
Ordered Locus Names:SCAB_73481
OrganismiStreptomyces scabies (strain 87.22) (Streptomyces scabiei)
Taxonomic identifieri680198 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaActinobacteridaeActinomycetalesStreptomycineaeStreptomycetaceaeStreptomyces
ProteomesiUP000001444 Componenti: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
  2. proteasome core complex, alpha-subunit complex Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 248248Proteasome subunit alphaPRO_0000397178Add
BLAST

Interactioni

Subunit structurei

The 20S proteasome core is composed of 14 alpha and 14 beta subunits that assemble into four stacked heptameric rings, resulting in a barrel-shaped structure. The two inner rings, each composed of seven catalytic beta subunits, are sandwiched by two outer rings, each composed of seven alpha subunits. The catalytic chamber with the active sites is on the inside of the barrel. Has a gated structure, the ends of the cylinder being occluded by the N-termini of the alpha-subunits. Is capped by the proteasome-associated ATPase, ARC.UniRule annotation

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000245319.
KOiK03432.
OMAiGRYNEFE.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
HAMAPiMF_00289_B. Proteasome_A_B.
InterProiIPR029055. Ntn_hydrolases_N.
IPR022296. Proteasome_asu_bac.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
TIGRFAMsiTIGR03691. 20S_bact_alpha. 1 hit.
PROSITEiPS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

C9Z4D1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSTPFYVSPQ QAMADRAEYA RKGIARGRSL VVLQYADGIV FVGENPSRAL
60 70 80 90 100
HKFSEIYDRI GFAAAGKYNE YENLRIGGVR YADLRGYTYD RDDVTARGLA
110 120 130 140 150
NVYAQTLGTI FSSAAEKPYE VELVVAEVGE TPEGDQIYRL PHDGSIVDEH
160 170 180 190 200
GSVAVGGNAE QISSYLDQRH QDGMSLAEAL KLAVQALSRD TNGTQREIPA
210 220 230 240
ERLEVAVLDR TRPQQRKFKR IVGRQLDRLL EADGATTEAE SSAEEEDE
Length:248
Mass (Da):27,436
Last modified:November 24, 2009 - v1
Checksum:i518CF77A8D13B63A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FN554889 Genomic DNA. Translation: CBG74333.1.
RefSeqiYP_003492867.1. NC_013929.1.

Genome annotation databases

EnsemblBacteriaiCBG74333; CBG74333; SCAB_73481.
KEGGiscb:SCAB_73481.
PATRICi35330401. VBIStrSca144334_7244.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FN554889 Genomic DNA. Translation: CBG74333.1.
RefSeqiYP_003492867.1. NC_013929.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCBG74333; CBG74333; SCAB_73481.
KEGGiscb:SCAB_73481.
PATRICi35330401. VBIStrSca144334_7244.

Phylogenomic databases

HOGENOMiHOG000245319.
KOiK03432.
OMAiGRYNEFE.

Enzyme and pathway databases

UniPathwayiUPA00997.
BioCyciSSCA680198:GJ76-7195-MONOMER.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
HAMAPiMF_00289_B. Proteasome_A_B.
InterProiIPR029055. Ntn_hydrolases_N.
IPR022296. Proteasome_asu_bac.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
TIGRFAMsiTIGR03691. 20S_bact_alpha. 1 hit.
PROSITEiPS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Streptomyces scabies 87-22 contains a coronafacic acid-like biosynthetic cluster that contributes to plant-microbe interactions."
    Bignell D.R., Seipke R.F., Huguet-Tapia J.C., Chambers A.H., Parry R.J., Loria R.
    Mol. Plant Microbe Interact. 23:161-175(2009) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 87.22.

Entry informationi

Entry nameiPSA_STRSW
AccessioniPrimary (citable) accession number: C9Z4D1
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: November 24, 2009
Last modified: April 1, 2015
This is version 37 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  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.