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Protein

Proteasome subunit alpha

Gene

prcA

Organism
Rhodococcus jostii (strain RHA1)
Status
Reviewed-Annotation score: -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: proteasomal Pup-dependent pathway

This protein is involved in the pathway proteasomal Pup-dependent pathway, which is part of Protein degradation.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway proteasomal Pup-dependent pathway and in Protein degradation.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protease, Threonine protease

Enzyme and pathway databases

BioCyciRJOS101510:G1G71-837-MONOMER
UniPathwayiUPA00997

Protein family/group databases

MEROPSiT01.980

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:RHA1_ro00843
OrganismiRhodococcus jostii (strain RHA1)
Taxonomic identifieri101510 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaCorynebacterialesNocardiaceaeRhodococcus
Proteomesi
  • UP000008710 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003971691 – 259Proteasome subunit alphaAdd BLAST259

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

Protein-protein interaction databases

STRINGi101510.RHA1_ro00843

Structurei

3D structure databases

ProteinModelPortaliQ0SIG0
SMRiQ0SIG0
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105F7N Bacteria
COG0638 LUCA
HOGENOMiHOG000245319
KOiK03432
OMAiKYNEFEN
OrthoDBiPOG091H08XR

Family and domain databases

Gene3Di3.60.20.10, 1 hit
HAMAPiMF_00289_B Proteasome_A_B, 1 hit
InterProiView protein in InterPro
IPR029055 Ntn_hydrolases_N
IPR023332 Proteasome_alpha-type
IPR022296 Proteasome_asu_bac
IPR001353 Proteasome_sua/b
PANTHERiPTHR11599:SF69 PTHR11599:SF69, 1 hit
PfamiView protein in Pfam
PF00227 Proteasome, 1 hit
SUPFAMiSSF56235 SSF56235, 1 hit
TIGRFAMsiTIGR03691 20S_bact_alpha, 1 hit
PROSITEiView protein in PROSITE
PS51475 PROTEASOME_ALPHA_2, 1 hit

Sequencei

Sequence statusi: Complete.

Q0SIG0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTMPYYASAE QIMRDRSELA RKGIARGRSV VVLTFRDGVL FVAENPSTAL
60 70 80 90 100
HKVSELYDRL GFAAVGKYNE FENLRRAGIV HADMRGYSYD RRDVTGRSLA
110 120 130 140 150
NAYAQTLGTI FTEQPKPYEV EICVAEVGRV GSPKAPQLYR ITYDGSIVDE
160 170 180 190 200
QHFVVMGGTT EPIATAMRES YRADLDLEAA VGIAVNALRQ GGAGEGEKRN
210 220 230 240 250
VDVASLEVAV LDQSRPRRAF RRITGPALEQ LIPAEPAPAS EPAPESKPDT

ETKPADPQD
Length:259
Mass (Da):28,374
Last modified:September 5, 2006 - v1
Checksum:iC1ADBB9525FCA320
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000431 Genomic DNA Translation: ABG92676.1
RefSeqiWP_011594076.1, NC_008268.1

Genome annotation databases

EnsemblBacteriaiABG92676; ABG92676; RHA1_ro00843
GeneIDi4218230
KEGGirha:RHA1_ro00843
PATRICifig|101510.16.peg.862

Similar proteinsi

Entry informationi

Entry nameiPSA_RHOJR
AccessioniPrimary (citable) accession number: Q0SIG0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: September 5, 2006
Last modified: May 23, 2018
This is version 85 of the entry and version 1 of the sequence. See 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

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