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Q9NHC6

- PSB2_TRYBB

UniProt

Q9NHC6 - PSB2_TRYBB

Protein

Proteasome subunit beta type-2

Gene

PSB4

Organism
Trypanosoma brucei brucei
Status
Reviewed - Annotation score: 2 out of 5- Experimental evidence at transcript leveli
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    • History
      Entry version 63 (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-2 (EC:3.4.25.1)
    Alternative name(s):
    20S proteasome subunit beta-4
    Gene namesi
    Name:PSB4
    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 – 206206Proteasome subunit beta type-2PRO_0000148048Add
    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

    ProteinModelPortaliQ9NHC6.
    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.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view]
    PfamiPF00227. Proteasome. 1 hit.
    [Graphical view]
    SUPFAMiSSF56235. SSF56235. 1 hit.
    PROSITEiPS51476. PROTEASOME_BETA_2. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    Q9NHC6-1 [UniParc]FASTAAdd to Basket

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    MAETTIGFRC QDFVLVAAAG LNAFYYIKIT DTEDKITELD SHKVVACAGE    50
    NGPRTHFVEY VKCNMALKKM REHGRMISTH ATASFMRNTL AGALRSRDGL 100
    YPVNCLLAGF DVPASAEDDV ATGAHLYYLD YLGTLQEVPY GCHGYGAPFV 150
    TAMLDRMWRP NLTAQEGVEL MQKCCDEVNK RVVVSNNTFI CKAVPKDGVE 200
    RVQSVS 206
    Length:206
    Mass (Da):22,758
    Last modified:October 1, 2000 - v1
    Checksum:i66A7400FECBE1BAB
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF226673 mRNA. Translation: AAF37284.1.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF226673 mRNA. Translation: AAF37284.1 .

    3D structure databases

    ProteinModelPortali Q9NHC6.
    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.
    IPR001353. Proteasome_sua/b.
    IPR023333. Proteasome_suB-type.
    [Graphical view ]
    Pfami PF00227. Proteasome. 1 hit.
    [Graphical view ]
    SUPFAMi SSF56235. SSF56235. 1 hit.
    PROSITEi 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 nameiPSB2_TRYBB
    AccessioniPrimary (citable) accession number: Q9NHC6
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: October 18, 2001
    Last sequence update: October 1, 2000
    Last modified: October 1, 2014
    This is version 63 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