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Q9NDA1

- PSB3_TRYBB

UniProt

Q9NDA1 - PSB3_TRYBB

Protein

Proteasome subunit beta type-3

Gene

PSB3

Organism
Trypanosoma brucei brucei
Status
Reviewed - Annotation score: 2 out of 5- Experimental evidence at transcript leveli
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    • History
      Entry version 61 (01 Oct 2014)
      Sequence version 1 (01 Oct 2000)
      Previous versions | rss
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    Functioni

    The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity By similarity.By similarity

    Catalytic activityi

    Cleavage of peptide bonds with very broad specificity.

    GO - Molecular functioni

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

    GO - Biological processi

    1. proteolysis involved in cellular protein catabolic process Source: InterPro

    Keywords - Molecular functioni

    Hydrolase, Protease, Threonine protease

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Proteasome subunit beta type-3 (EC:3.4.25.1)
    Alternative name(s):
    20S proteasome subunit beta-3
    Gene namesi
    Name:PSB3
    OrganismiTrypanosoma brucei brucei
    Taxonomic identifieri5702 [NCBI]
    Taxonomic lineageiEukaryotaEuglenozoaKinetoplastidaTrypanosomatidaeTrypanosoma

    Subcellular locationi

    Cytoplasm PROSITE-ProRule annotation. Nucleus By similarity

    GO - Cellular componenti

    1. cytoplasm Source: UniProtKB-SubCell
    2. nucleus Source: UniProtKB-SubCell
    3. proteasome core complex Source: InterPro

    Keywords - Cellular componenti

    Cytoplasm, Nucleus, Proteasome

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 205205Proteasome subunit beta type-3PRO_0000148064Add
    BLAST

    Interactioni

    Subunit structurei

    The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is composed of 28 subunits that are arranged in four stacked rings, resulting in a barrel-shaped structure. The two end rings are each formed by seven alpha subunits, and the two central rings are each formed by seven beta subunits. The catalytic chamber with the active sites is on the inside of the barrel By similarity.By similarity

    Structurei

    3D structure databases

    ProteinModelPortaliQ9NDA1.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the peptidase T1B family.PROSITE-ProRule annotation

    Family and domain databases

    Gene3Di3.60.20.10. 1 hit.
    InterProiIPR029055. Ntn_hydrolases_N.
    IPR016050. Proteasome_bsu_CS.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view]
    PfamiPF00227. Proteasome. 1 hit.
    [Graphical view]
    SUPFAMiSSF56235. SSF56235. 1 hit.
    PROSITEiPS00854. PROTEASOME_BETA_1. 1 hit.
    PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    Q9NDA1-1 [UniParc]FASTAAdd to Basket

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    MSILTYSGGS CLAMAGKECF VVISDNRLGE QLKTISMEVP KLHVINDGIV    50
    MGLTGLRTDQ QTFAQKVNFR TEMYKLREER DINGKAFAAL VSSMLYEARF 100
    GPWFVEPVIG TIDRKTGEVY LCATDLIGAP CEPEDYVCAG TCAESLHGMC 150
    EALWRPGLEP EELFEVAAQA MLSACDRDSL SGYGAVAAIV TKDKLVTRLI 200
    KGRKD 205
    Length:205
    Mass (Da):22,458
    Last modified:October 1, 2000 - v1
    Checksum:i4CB2093E81E2FFD7
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF169653 mRNA. Translation: AAF89685.1.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF169653 mRNA. Translation: AAF89685.1 .

    3D structure databases

    ProteinModelPortali Q9NDA1.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    Gene3Di 3.60.20.10. 1 hit.
    InterProi IPR029055. Ntn_hydrolases_N.
    IPR016050. Proteasome_bsu_CS.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view ]
    Pfami PF00227. Proteasome. 1 hit.
    [Graphical view ]
    SUPFAMi SSF56235. SSF56235. 1 hit.
    PROSITEi PS00854. PROTEASOME_BETA_1. 1 hit.
    PS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "Functional assignment of the 20 S proteasome from Trypanosoma brucei using mass spectrometry and new bioinformatics approaches."
      Huang L., Jacob R.J., Pegg S.C.H., Baldwin M.A., Wang C.C., Burlingame A.L., Babbitt P.C.
      J. Biol. Chem. 276:28327-28339(2001) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [MRNA].
      Strain: 427.

    Entry informationi

    Entry nameiPSB3_TRYBB
    AccessioniPrimary (citable) accession number: Q9NDA1
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: October 18, 2001
    Last sequence update: October 1, 2000
    Last modified: October 1, 2014
    This is version 61 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)

    Miscellaneousi

    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