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Protein

Proteasome subunit alpha

Gene

prcA

Organism
Mycobacterium gilvum (strain PYR-GCK) (Mycobacterium flavescens (strain ATCC 700033 / PYR-GCK))
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

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:Mflv_3078
OrganismiMycobacterium gilvum (strain PYR-GCK) (Mycobacterium flavescens (strain ATCC 700033 / PYR-GCK))
Taxonomic identifieri350054 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaCorynebacterialesMycobacteriaceaeMycobacteriumMycobacterium fortuitum complex
Proteomesi
  • UP000000232 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_00003971501 – 251Proteasome subunit alphaAdd BLAST251

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

STRINGi350054.Mflv_3078

Structurei

3D structure databases

ProteinModelPortaliA4TB55
SMRiA4TB55
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.

A4TB55-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSFPYFISPE QAMRERSELA RKGIARGRSV IALAYADGVL FVAENPSRSL
60 70 80 90 100
QKVSELYDRV GFAAVGRFNE FNNLRSGGIR FADTQGYAYS RRDVTGRQLA
110 120 130 140 150
NVYAQTLGTI FTEQAKPYEV ELCVAEVAHY GETKAPELYR ITYDGSIADE
160 170 180 190 200
PHFVVMGGTT EPIATALNES YAENASLEDA VRIAVAALGA GGNGAEPRTL
210 220 230 240 250
GPSTLEVAIL DANRPRRAFR RITGAALEAL LPQADTKDDS QDSEGAAEPD

A
Length:251
Mass (Da):27,132
Last modified:May 15, 2007 - v1
Checksum:i19A82FBDD3BFDBA1
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000656 Genomic DNA Translation: ABP45555.1
RefSeqiWP_011893955.1, NC_009338.1

Genome annotation databases

EnsemblBacteriaiABP45555; ABP45555; Mflv_3078
KEGGimgi:Mflv_3078

Similar proteinsi

Entry informationi

Entry nameiPSA_MYCGI
AccessioniPrimary (citable) accession number: A4TB55
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: May 15, 2007
Last modified: May 23, 2018
This is version 76 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

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