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Q9UXF3

- PSB2_SULSO

UniProt

Q9UXF3 - PSB2_SULSO

Protein

Proteasome subunit beta 2

Gene

psmB2

Organism
Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 93 (01 Oct 2014)
      Sequence version 2 (01 Dec 2000)
      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 sitei15 – 151NucleophileUniRule 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

    BioCyciSSOL273057:GCH2-735-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:SSO0766
    ORF Names:C40_002
    OrganismiSulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
    Taxonomic identifieri273057 [NCBI]
    Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiSulfolobalesSulfolobaceaeSulfolobus
    ProteomesiUP000001974: 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 – 1414Removed in mature form; by autocatalysisUniRule annotationPRO_0000026673Add
    BLAST
    Chaini15 – 208194Proteasome subunit beta 2PRO_0000026674Add
    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

    STRINGi273057.SSO0766.

    Structurei

    3D structure databases

    ProteinModelPortaliQ9UXF3.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the peptidase T1B family.UniRule annotation

    Phylogenomic databases

    eggNOGiCOG0638.
    HOGENOMiHOG000091083.
    KOiK03433.
    OMAiHIRIANC.

    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.
    IPR016050. Proteasome_bsu_CS.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view]
    PfamiPF00227. Proteasome. 1 hit.
    [Graphical view]
    PRINTSiPR00141. PROTEASOME.
    SUPFAMiSSF56235. SSF56235. 1 hit.
    TIGRFAMsiTIGR03634. arc_protsome_B. 1 hit.
    PROSITEiPS00854. PROTEASOME_BETA_1. 1 hit.
    PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

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

    Q9UXF3-1 [UniParc]FASTAAdd to Basket

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    MGNELQLENK ILKGTTTVGI RVNDGVILAA DRRASAGFFV ANKMVRKVLY    50
    ITDKIGITTA GSVADLQFIY DVLKNIYHYN SITKYGPISI KGIATRLANV 100
    LSATKYFPYI VQILIGGYDD QPRLFNLDYL GDITEENYVA TGSGSPVAMG 150
    VLEDEYNPKM TLDEAADLAK RAVFSAIKRD SFTGTGVIVA KIHSKGHEEL 200
    EFYLNKKM 208
    Length:208
    Mass (Da):22,927
    Last modified:December 1, 2000 - v2
    Checksum:iC940A8273AB25CB9
    GO

    Sequence cautioni

    The sequence AAK41063.1 differs from that shown. Reason: Erroneous initiation.
    The sequence CAB57537.1 differs from that shown. Reason: Erroneous initiation.

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Y18930 Genomic DNA. Translation: CAB57537.1. Different initiation.
    AE006641 Genomic DNA. Translation: AAK41063.1. Different initiation.
    PIRiH90225.
    RefSeqiNP_342273.1. NC_002754.1.

    Genome annotation databases

    EnsemblBacteriaiAAK41063; AAK41063; SSO0766.
    GeneIDi1455030.
    KEGGisso:SSO0766.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Y18930 Genomic DNA. Translation: CAB57537.1 . Different initiation.
    AE006641 Genomic DNA. Translation: AAK41063.1 . Different initiation.
    PIRi H90225.
    RefSeqi NP_342273.1. NC_002754.1.

    3D structure databases

    ProteinModelPortali Q9UXF3.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 273057.SSO0766.

    Protein family/group databases

    MEROPSi T01.002.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai AAK41063 ; AAK41063 ; SSO0766 .
    GeneIDi 1455030.
    KEGGi sso:SSO0766.

    Phylogenomic databases

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

    Enzyme and pathway databases

    BioCyci SSOL273057:GCH2-735-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.
    IPR016050. Proteasome_bsu_CS.
    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.
    TIGRFAMsi TIGR03634. arc_protsome_B. 1 hit.
    PROSITEi PS00854. PROTEASOME_BETA_1. 1 hit.
    PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: ATCC 35092 / DSM 1617 / JCM 11322 / P2.
    2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: ATCC 35092 / DSM 1617 / JCM 11322 / P2.

    Entry informationi

    Entry nameiPSB2_SULSO
    AccessioniPrimary (citable) accession number: Q9UXF3
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: December 1, 2000
    Last sequence update: December 1, 2000
    Last modified: October 1, 2014
    This is version 93 of the entry and version 2 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