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Q8SR11

- PSB1_ENCCU

UniProt

Q8SR11 - PSB1_ENCCU

Protein

Probable proteasome subunit beta type-1

Gene

PRE3

Organism
Encephalitozoon cuniculi (strain GB-M1) (Microsporidian parasite)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at protein leveli
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    • History
      Entry version 75 (01 Oct 2014)
      Sequence version 1 (01 Jun 2002)
      Previous versions | rss
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    Functioni

    The proteasome degrades poly-ubiquitinated proteins in the cytoplasm and in the nucleus. It is essential for the regulated turnover of proteins and for the removal of misfolded proteins. The proteasome is a multicatalytic proteinase complex that 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. It has an ATP-dependent proteolytic activity By similarity.By similarity

    Catalytic activityi

    Cleavage of peptide bonds with very broad specificity.

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Active sitei11 – 111NucleophileBy similarity

    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

    Protein family/group databases

    MEROPSiT01.010.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Probable proteasome subunit beta type-1 (EC:3.4.25.1)
    Alternative name(s):
    26S proteasome beta-type subunit PRE3
    Multicatalytic endopeptidase complex subunit PRE3
    Gene namesi
    Name:PRE3
    Ordered Locus Names:ECU10_1450
    OrganismiEncephalitozoon cuniculi (strain GB-M1) (Microsporidian parasite)
    Taxonomic identifieri284813 [NCBI]
    Taxonomic lineageiEukaryotaFungiMicrosporidiaUnikaryonidaeEncephalitozoon
    ProteomesiUP000000819: Chromosome X

    Organism-specific databases

    EuPathDBiMicrosporidiaDB:ECU10_1450.

    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
    Propeptidei1 – 1010Removed in mature formBy similarityPRO_0000391408
    Chaini11 – 203193Probable proteasome subunit beta type-1PRO_0000382760Add
    BLAST

    Expressioni

    Developmental stagei

    Expressed in late sporogonial stages.1 Publication

    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

    Protein-protein interaction databases

    STRINGi6035.ECU10_1450.

    Structurei

    3D structure databases

    ProteinModelPortaliQ8SR11.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the peptidase T1B family.PROSITE-ProRule annotation

    Phylogenomic databases

    eggNOGiCOG0638.
    HOGENOMiHOG000091079.
    KOiK02738.
    OMAiCIRMCVI.
    OrthoDBiEOG7XDBSV.

    Family and domain databases

    Gene3Di3.60.20.10. 1 hit.
    InterProiIPR029055. Ntn_hydrolases_N.
    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.
    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.

    Q8SR11-1 [UniParc]FASTAAdd to Basket

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    MMSNEKEMTG TTIIAIKYDD GVLIGADSRT SMGAYVSSRV TDKLTQITDK    50
    IFVCRSGSSA DTQMISSYLR MYLSMYSQLE DSIPQVQRAA ALASKIIYEN 100
    PSLLAGLIVA GYDDKPRVFN ISLGGSLTER DWAIGGSGSA FIYGYCDVNW 150
    RSGMSLEEGI RFVRNAVSCA INRDNASGGC IRMSAISRTG VQRYFYPGDK 200
    VLQ 203
    Length:203
    Mass (Da):22,189
    Last modified:June 1, 2002 - v1
    Checksum:iDC82D2EAD817DA3E
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AL590449 Genomic DNA. Translation: CAD25864.1.
    RefSeqiNP_586260.1. NM_001042093.1.

    Genome annotation databases

    GeneIDi859910.
    KEGGiecu:ECU10_1450.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AL590449 Genomic DNA. Translation: CAD25864.1 .
    RefSeqi NP_586260.1. NM_001042093.1.

    3D structure databases

    ProteinModelPortali Q8SR11.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 6035.ECU10_1450.

    Protein family/group databases

    MEROPSi T01.010.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 859910.
    KEGGi ecu:ECU10_1450.

    Organism-specific databases

    EuPathDBi MicrosporidiaDB:ECU10_1450.

    Phylogenomic databases

    eggNOGi COG0638.
    HOGENOMi HOG000091079.
    KOi K02738.
    OMAi CIRMCVI.
    OrthoDBi EOG7XDBSV.

    Family and domain databases

    Gene3Di 3.60.20.10. 1 hit.
    InterProi IPR029055. Ntn_hydrolases_N.
    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.
    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: GB-M1.
    2. "Proteomic analysis of the eukaryotic parasite Encephalitozoon cuniculi (microsporidia): a reference map for proteins expressed in late sporogonial stages."
      Brosson D., Kuhn L., Delbac F., Garin J., Vivares C.P., Texier C.
      Proteomics 6:3625-3635(2006) [PubMed] [Europe PMC] [Abstract]
      Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS], DEVELOPMENTAL STAGE.

    Entry informationi

    Entry nameiPSB1_ENCCU
    AccessioniPrimary (citable) accession number: Q8SR11
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: September 1, 2009
    Last sequence update: June 1, 2002
    Last modified: October 1, 2014
    This is version 75 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programFungal 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