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B8D683

- PSB2_DESK1

UniProt

B8D683 - PSB2_DESK1

Protein

Proteasome subunit beta 2

Gene

psmB2

Organism
Desulfurococcus kamchatkensis (strain 1221n / DSM 18924)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 34 (01 Oct 2014)
      Sequence version 1 (03 Mar 2009)
      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 PAN-20S proteasome complex, via the docking of the C-termini of PAN into the intersubunit pockets in the alpha-rings, triggers 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

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Active sitei8 – 81NucleophileUniRule annotation

    GO - Molecular functioni

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

    GO - Biological processi

    1. proteasomal protein catabolic process Source: UniProtKB-HAMAP

    Keywords - Molecular functioni

    Hydrolase, Protease, Threonine protease

    Enzyme and pathway databases

    BioCyciDKAM490899:GHYH-1328-MONOMER.

    Protein family/group databases

    MEROPSiT01.002.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Proteasome subunit beta 2UniRule annotation (EC:3.4.25.1UniRule annotation)
    Alternative name(s):
    20S proteasome beta subunit 2UniRule annotation
    Proteasome core protein PsmB 2UniRule annotation
    Gene namesi
    Name:psmB2UniRule annotation
    Ordered Locus Names:DKAM_1288
    OrganismiDesulfurococcus kamchatkensis (strain 1221n / DSM 18924)
    Taxonomic identifieri490899 [NCBI]
    Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiDesulfurococcalesDesulfurococcaceaeDesulfurococcus
    ProteomesiUP000006903: 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 – 77Removed in mature form; by autocatalysisUniRule annotationPRO_0000397290
    Chaini8 – 206199Proteasome subunit beta 2PRO_0000397291Add
    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 at one or both ends by the proteasome regulatory ATPase, PAN.UniRule annotation

    Protein-protein interaction databases

    STRINGi490899.DKAM_1288.

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the peptidase T1B family.UniRule annotation

    Phylogenomic databases

    eggNOGiCOG0638.
    HOGENOMiHOG000091083.
    KOiK03433.
    OMAiGYYIAHR.

    Family and domain databases

    Gene3Di3.60.20.10. 1 hit.
    HAMAPiMF_02113_A. Proteasome_B_A.
    InterProiIPR029055. Ntn_hydrolases_N.
    IPR019983. Pept_T1A_Psome_bsu_arc.
    IPR000243. Pept_T1A_subB.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view]
    PfamiPF00227. Proteasome. 1 hit.
    [Graphical view]
    PRINTSiPR00141. PROTEASOME.
    SUPFAMiSSF56235. SSF56235. 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.

    B8D683-1 [UniParc]FASTAAdd to Basket

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    MREAVSKTTT VGLVTGDYVV LAADKRATAG PMVYHKAVKK ISKITDYAAL    50
    TISGLVADAQ YIVENARYIA REYEIEMGGP IPIKALASRI SLILSVYLRY 100
    SPFIVQLLLG GRDSTGASLY YMDLYGSVTR EKYMATGSGS PVAFGILEKN 150
    YRSDLSLEEA KKLAFNAVSS AIMRDGFSGE GVDIVVIGPG IYSEETIPLK 200
    KTIESS 206
    Length:206
    Mass (Da):22,270
    Last modified:March 3, 2009 - v1
    Checksum:i217B63A7E204A82F
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP001140 Genomic DNA. Translation: ACL11614.1.
    RefSeqiWP_012608955.1. NC_011766.1.
    YP_002428981.1. NC_011766.1.

    Genome annotation databases

    EnsemblBacteriaiACL11614; ACL11614; DKAM_1288.
    GeneIDi7171347.
    KEGGidka:DKAM_1288.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP001140 Genomic DNA. Translation: ACL11614.1 .
    RefSeqi WP_012608955.1. NC_011766.1.
    YP_002428981.1. NC_011766.1.

    3D structure databases

    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 490899.DKAM_1288.

    Protein family/group databases

    MEROPSi T01.002.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai ACL11614 ; ACL11614 ; DKAM_1288 .
    GeneIDi 7171347.
    KEGGi dka:DKAM_1288.

    Phylogenomic databases

    eggNOGi COG0638.
    HOGENOMi HOG000091083.
    KOi K03433.
    OMAi GYYIAHR.

    Enzyme and pathway databases

    BioCyci DKAM490899:GHYH-1328-MONOMER.

    Family and domain databases

    Gene3Di 3.60.20.10. 1 hit.
    HAMAPi MF_02113_A. Proteasome_B_A.
    InterProi IPR029055. Ntn_hydrolases_N.
    IPR019983. Pept_T1A_Psome_bsu_arc.
    IPR000243. Pept_T1A_subB.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view ]
    Pfami PF00227. Proteasome. 1 hit.
    [Graphical view ]
    PRINTSi PR00141. PROTEASOME.
    SUPFAMi SSF56235. SSF56235. 1 hit.
    PROSITEi PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "Complete genome sequence of the anaerobic, protein-degrading hyperthermophilic crenarchaeon Desulfurococcus kamchatkensis."
      Ravin N.V., Mardanov A.V., Beletsky A.V., Kublanov I.V., Kolganova T.V., Lebedinsky A.V., Chernyh N.A., Bonch-Osmolovskaya E.A., Skryabin K.G.
      J. Bacteriol. 191:2371-2379(2009) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: 1221n / DSM 18924.

    Entry informationi

    Entry nameiPSB2_DESK1
    AccessioniPrimary (citable) accession number: B8D683
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: August 10, 2010
    Last sequence update: March 3, 2009
    Last modified: October 1, 2014
    This is version 34 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. Peptidase families
      Classification of peptidase families and list of entries
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3