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Q8ZYF2

- PSB1_PYRAE

UniProt

Q8ZYF2 - PSB1_PYRAE

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Protein

Proteasome subunit beta 1

Gene
psmB1, PAE0807
Organism
Pyrobaculum aerophilum (strain ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation By similarity.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 By similarity.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei2 – 21Nucleophile By similarity

GO - Molecular functioni

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

GO - Biological processi

  1. proteasomal protein catabolic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

BioCyciPAER178306:GCEO-563-MONOMER.

Protein family/group databases

MEROPSiT01.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta 1 (EC:3.4.25.1)
Alternative name(s):
20S proteasome beta subunit 1
Proteasome core protein PsmB 1
Gene namesi
Name:psmB1
Ordered Locus Names:PAE0807
OrganismiPyrobaculum aerophilum (strain ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827)
Taxonomic identifieri178306 [NCBI]
Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiThermoprotealesThermoproteaceaePyrobaculum
ProteomesiUP000002439: Chromosome

Subcellular locationi

Cytoplasm By similarity UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
  2. proteasome core complex, beta-subunit complex Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Propeptidei1 – 11Removed in mature form; by autocatalysis By similarityPRO_0000397394
Chaini2 – 202201Proteasome subunit beta 1UniRule annotationPRO_0000397395Add
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 By similarity.

Protein-protein interaction databases

STRINGi178306.PAE0807.

Structurei

3D structure databases

ProteinModelPortaliQ8ZYF2.

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000091083.
KOiK03433.
OMAiMVDWLGT.

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.
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.

Q8ZYF2-1 [UniParc]FASTAAdd to Basket

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MTTTVGIAVK DGVVLATDKR VTAGYYIAHK RGEKIWKIDD HVAATMSGGV    50
ADLQSVLSFL TLRAHEYKIE YKRPIPISAL VNYMSLILFY SRPYIYIVHS 100
IIGGVDEEEG AVLYMVDWLG TVTKEKYIAT GSGSPYAKGA LEVGYREDMT 150
LEDAVDLAIK AVKAAIRNDP GSGEGIDVVV ITRKEGFKRV FTTQQKLVLP 200
SL 202
Length:202
Mass (Da):22,191
Last modified:March 1, 2002 - v1
Checksum:iD5D04A60D4FE2A17
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE009441 Genomic DNA. Translation: AAL63041.1.
RefSeqiNP_558859.1. NC_003364.1.
WP_011007513.1. NC_003364.1.

Genome annotation databases

EnsemblBacteriaiAAL63041; AAL63041; PAE0807.
GeneIDi1465270.
KEGGipai:PAE0807.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AE009441 Genomic DNA. Translation: AAL63041.1 .
RefSeqi NP_558859.1. NC_003364.1.
WP_011007513.1. NC_003364.1.

3D structure databases

ProteinModelPortali Q8ZYF2.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 178306.PAE0807.

Protein family/group databases

MEROPSi T01.002.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAL63041 ; AAL63041 ; PAE0807 .
GeneIDi 1465270.
KEGGi pai:PAE0807.

Phylogenomic databases

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

Enzyme and pathway databases

BioCyci PAER178306:GCEO-563-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.
PROSITEi PS00854. PROTEASOME_BETA_1. 1 hit.
PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum aerophilum."
    Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I., Miller J.H.
    Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 51768 / IM2 / DSM 7523 / JCM 9630 / NBRC 100827.

Entry informationi

Entry nameiPSB1_PYRAE
AccessioniPrimary (citable) accession number: Q8ZYF2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: March 1, 2002
Last modified: September 3, 2014
This is version 73 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

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