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A0QFB5

- PSB_MYCA1

UniProt

A0QFB5 - PSB_MYCA1

Protein

Proteasome subunit beta

Gene

prcB

Organism
Mycobacterium avium (strain 104)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 56 (01 Oct 2014)
      Sequence version 1 (09 Jan 2007)
      Previous versions | rss
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    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

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Active sitei68 – 681NucleophileUniRule annotation

    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

    Keywords - Molecular functioni

    Hydrolase, Protease, Threonine protease

    Enzyme and pathway databases

    BioCyciMAVI243243:GH3Y-2404-MONOMER.
    UniPathwayiUPA00997.

    Protein family/group databases

    MEROPSiT01.005.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Proteasome subunit betaUniRule annotation (EC:3.4.25.1UniRule annotation)
    Alternative name(s):
    20S proteasome beta subunitUniRule annotation
    Proteasome core protein PrcBUniRule annotation
    Gene namesi
    Name:prcBUniRule annotation
    Ordered Locus Names:MAV_2404
    OrganismiMycobacterium avium (strain 104)
    Taxonomic identifieri243243 [NCBI]
    Taxonomic lineageiBacteriaActinobacteriaActinobacteridaeActinomycetalesCorynebacterineaeMycobacteriaceaeMycobacteriumMycobacterium avium complex (MAC)
    ProteomesiUP000001574: Chromosome

    Subcellular locationi

    Cytoplasm UniRule annotation

    GO - Cellular componenti

    1. cytoplasm Source: UniProtKB-SubCell
    2. proteasome core complex, beta-subunit complex Source: UniProtKB-HAMAP

    Keywords - Cellular componenti

    Cytoplasm, Proteasome

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Propeptidei1 – 6767Removed in mature form; by autocatalysisUniRule annotationPRO_0000397522Add
    BLAST
    Chaini68 – 303236Proteasome subunit betaPRO_0000397523Add
    BLAST

    Keywords - PTMi

    Autocatalytic cleavage, Zymogen

    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

    STRINGi243243.MAV_2404.

    Structurei

    3D structure databases

    ProteinModelPortaliA0QFB5.
    SMRiA0QFB5. Positions 27-289.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the peptidase T1B family.UniRule annotation

    Phylogenomic databases

    eggNOGiCOG0638.
    HOGENOMiHOG000245308.
    KOiK03433.
    OMAiFQVELEH.
    OrthoDBiEOG6XM79W.

    Family and domain databases

    Gene3Di3.60.20.10. 1 hit.
    HAMAPiMF_02113_B. Proteasome_B_B.
    InterProiIPR029055. Ntn_hydrolases_N.
    IPR022483. Pept_T1A_Psome_suB_actinobac.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view]
    PfamiPF00227. Proteasome. 1 hit.
    [Graphical view]
    SUPFAMiSSF56235. SSF56235. 1 hit.
    TIGRFAMsiTIGR03690. 20S_bact_beta. 1 hit.
    PROSITEiPS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

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

    A0QFB5-1 [UniParc]FASTAAdd to Basket

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    MTWQFPDRLS TNSALPGPAF SGQPAVDLSS FADFLRRQAP ELLPAALGGA    50
    QSGPASSSGG TGQLPHGTTI VALKYPGGVV LAGDRRSTQG NMIAGRDVKK 100
    VYITDDYTAT GIAGTAAIAV EFARLYAVEL EHYEKLEGVP LTFAGKVNRL 150
    AIMVRGNLAA AMQGLVALPL LAGYDIDARD PEGAGRIVSF DAAGGWNLEE 200
    EGYQSVGSGS IFAKSSMKKL YSQVVDADSA VRVAIEALYD AADDDSATGG 250
    PDLVRGIYPT AVTIGAEGAL EVPESRIAEL AREVIQSRSR ADTFGPDAAG 300
    GDK 303
    Length:303
    Mass (Da):31,437
    Last modified:January 9, 2007 - v1
    Checksum:iB2A707043AE4BCEE
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000479 Genomic DNA. Translation: ABK68298.1.
    RefSeqiYP_881603.1. NC_008595.1.

    Genome annotation databases

    EnsemblBacteriaiABK68298; ABK68298; MAV_2404.
    GeneIDi4529747.
    KEGGimav:MAV_2404.
    PATRICi17986512. VBIMycAvi38287_2343.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000479 Genomic DNA. Translation: ABK68298.1 .
    RefSeqi YP_881603.1. NC_008595.1.

    3D structure databases

    ProteinModelPortali A0QFB5.
    SMRi A0QFB5. Positions 27-289.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 243243.MAV_2404.

    Protein family/group databases

    MEROPSi T01.005.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai ABK68298 ; ABK68298 ; MAV_2404 .
    GeneIDi 4529747.
    KEGGi mav:MAV_2404.
    PATRICi 17986512. VBIMycAvi38287_2343.

    Phylogenomic databases

    eggNOGi COG0638.
    HOGENOMi HOG000245308.
    KOi K03433.
    OMAi FQVELEH.
    OrthoDBi EOG6XM79W.

    Enzyme and pathway databases

    UniPathwayi UPA00997 .
    BioCyci MAVI243243:GH3Y-2404-MONOMER.

    Family and domain databases

    Gene3Di 3.60.20.10. 1 hit.
    HAMAPi MF_02113_B. Proteasome_B_B.
    InterProi IPR029055. Ntn_hydrolases_N.
    IPR022483. Pept_T1A_Psome_suB_actinobac.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view ]
    Pfami PF00227. Proteasome. 1 hit.
    [Graphical view ]
    SUPFAMi SSF56235. SSF56235. 1 hit.
    TIGRFAMsi TIGR03690. 20S_bact_beta. 1 hit.
    PROSITEi PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C., Fraser C.M.
      Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: 104.

    Entry informationi

    Entry nameiPSB_MYCA1
    AccessioniPrimary (citable) accession number: A0QFB5
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: August 10, 2010
    Last sequence update: January 9, 2007
    Last modified: October 1, 2014
    This is version 56 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

    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