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Q8U4C9

- PSB1_PYRFU

UniProt

Q8U4C9 - PSB1_PYRFU

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Protein

Proteasome subunit beta 1

Gene

psmB1

Organism
Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)
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.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 sitei7 – 71NucleophileUniRule annotation

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

Protein family/group databases

MEROPSiT01.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta 1UniRule annotation (EC:3.4.25.1UniRule annotation)
Alternative name(s):
20S proteasome beta subunit 1UniRule annotation
Proteasome core protein PsmB 1UniRule annotation
Gene namesi
Name:psmB1UniRule annotation
Ordered Locus Names:PF0159
OrganismiPyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)
Taxonomic identifieri186497 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaThermococciThermococcalesThermococcaceaePyrococcus
ProteomesiUP000001013: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-HAMAP
  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 – 66Removed in mature form; by autocatalysisUniRule annotationPRO_0000397410
Chaini7 – 196190Proteasome subunit beta 1PRO_0000397411Add
BLAST

Keywords - PTMi

Autocatalytic cleavage, Zymogen

Proteomic databases

PRIDEiQ8U4C9.

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

STRINGi186497.PF0159.

Structurei

3D structure databases

ProteinModelPortaliQ8U4C9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000091083.
KOiK03433.
OMAiWFPYLVQ.

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.

Q8U4C9-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MEKKTGTTTV GIKVKDGVVL AADTQASLDH MVETLNIKKI IPITDRIAIT
60 70 80 90 100
TAGSVGDVQM LARYLEAEAR YYYFTWGRPM TTKAMANLLS NILNENRWFP
110 120 130 140 150
YLVQIIIGGY VDEPTIANLD PFGGLIFDDY TATGSGTPFA IAVLEEGYRE
160 170 180 190
DLTIEEAKEL AIRAVRAAGR RDVYTGSKKV QVVTITKDGM KEEFVV
Length:196
Mass (Da):21,649
Last modified:June 1, 2002 - v1
Checksum:iBC5D730D15AB7DFC
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE009950 Genomic DNA. Translation: AAL80283.1.
RefSeqiNP_577888.1. NC_003413.1.
WP_011011272.1. NC_003413.1.

Genome annotation databases

EnsemblBacteriaiAAL80283; AAL80283; PF0159.
GeneIDi1467991.
KEGGipfu:PF0159.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE009950 Genomic DNA. Translation: AAL80283.1 .
RefSeqi NP_577888.1. NC_003413.1.
WP_011011272.1. NC_003413.1.

3D structure databases

ProteinModelPortali Q8U4C9.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 186497.PF0159.

Protein family/group databases

MEROPSi T01.002.

Proteomic databases

PRIDEi Q8U4C9.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAL80283 ; AAL80283 ; PF0159 .
GeneIDi 1467991.
KEGGi pfu:PF0159.

Phylogenomic databases

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

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. "Divergence of the hyperthermophilic archaea Pyrococcus furiosus and P. horikoshii inferred from complete genomic sequences."
    Maeder D.L., Weiss R.B., Dunn D.M., Cherry J.L., Gonzalez J.M., DiRuggiero J., Robb F.T.
    Genetics 152:1299-1305(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 43587 / DSM 3638 / JCM 8422 / Vc1.

Entry informationi

Entry nameiPSB1_PYRFU
AccessioniPrimary (citable) accession number: Q8U4C9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: June 1, 2002
Last modified: October 29, 2014
This is version 75 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