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A1UHS7

- PSB_MYCSK

UniProt

A1UHS7 - PSB_MYCSK

Protein

Proteasome subunit beta

Gene

prcB

Organism
Mycobacterium sp. (strain KMS)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 54 (01 Oct 2014)
      Sequence version 1 (06 Feb 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 sitei66 – 661NucleophileUniRule 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

    BioCyciMSP189918:GH4X-3214-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:Mkms_3191
    OrganismiMycobacterium sp. (strain KMS)
    Taxonomic identifieri189918 [NCBI]
    Taxonomic lineageiBacteriaActinobacteriaActinobacteridaeActinomycetalesCorynebacterineaeMycobacteriaceaeMycobacterium
    ProteomesiUP000000638: 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 – 6565Removed in mature form; by autocatalysisUniRule annotationPRO_0000397542Add
    BLAST
    Chaini66 – 304239Proteasome subunit betaPRO_0000397543Add
    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

    STRINGi189918.Mkms_3191.

    Structurei

    3D structure databases

    ProteinModelPortaliA1UHS7.
    SMRiA1UHS7. Positions 32-287.
    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.

    A1UHS7-1 [UniParc]FASTAAdd to Basket

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    MTWPHFEQLA FPDLSRHSSH STTRGVPSVP MDLSSFSDML RRQAPHLLPF    50
    RGDASLTPTD AVPHGTTIVA LKFPGGVVMA GDRRATQGNM IASRDVQKVY 100
    ITDDYTATGI AGTAAIAVEF ARLYAVELEH YEKLEGVALT FAGKVNRLAT 150
    MVRGNLGAAL QGFVALPLLA GFDLDDPDPQ AAGRIVSFDA AGGHNLEEEG 200
    FQSVGSGSIF AKSSMKKLYH QVTDADSALR VAVEALYDAA DDDSATGGPD 250
    LVRGIFPTAV LITADGAEEV TQERIAGLAR EVIQNRSRAD TFGPDAHAPR 300
    GTDS 304
    Length:304
    Mass (Da):32,266
    Last modified:February 6, 2007 - v1
    Checksum:iB52436CB43F2A9F8
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000518 Genomic DNA. Translation: ABL92385.1.
    RefSeqiYP_939175.1. NC_008705.1.

    Genome annotation databases

    EnsemblBacteriaiABL92385; ABL92385; Mkms_3191.
    GeneIDi4611115.
    KEGGimkm:Mkms_3191.
    PATRICi18105366. VBIMycSp70743_3714.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000518 Genomic DNA. Translation: ABL92385.1 .
    RefSeqi YP_939175.1. NC_008705.1.

    3D structure databases

    ProteinModelPortali A1UHS7.
    SMRi A1UHS7. Positions 32-287.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 189918.Mkms_3191.

    Protein family/group databases

    MEROPSi T01.005.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai ABL92385 ; ABL92385 ; Mkms_3191 .
    GeneIDi 4611115.
    KEGGi mkm:Mkms_3191.
    PATRICi 18105366. VBIMycSp70743_3714.

    Phylogenomic databases

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

    Enzyme and pathway databases

    UniPathwayi UPA00997 .
    BioCyci MSP189918:GH4X-3214-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: KMS.

    Entry informationi

    Entry nameiPSB_MYCSK
    AccessioniPrimary (citable) accession number: A1UHS7
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: August 10, 2010
    Last sequence update: February 6, 2007
    Last modified: October 1, 2014
    This is version 54 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