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A3DN21

- PSB1_STAMF

UniProt

A3DN21 - PSB1_STAMF

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Protein

Proteasome subunit beta 1

Gene
psmB1, Smar_0932
Organism
Staphylothermus marinus (strain ATCC 43588 / DSM 3639 / F1)
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 sitei19 – 191Nucleophile Reviewed prediction

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

BioCyciSMAR399550:GHK2-960-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:Smar_0932
OrganismiStaphylothermus marinus (strain ATCC 43588 / DSM 3639 / F1)
Taxonomic identifieri399550 [NCBI]
Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiDesulfurococcalesDesulfurococcaceaeStaphylothermus
ProteomesiUP000000254: 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 – 1818Removed in mature form; by autocatalysis Reviewed predictionPRO_0000397418Add
BLAST
Chaini19 – 213195Proteasome subunit beta 1UniRule annotationPRO_0000397419Add
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

STRINGi399550.Smar_0932.

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000091083.
KOiK03433.
OMAiYSYKLAP.

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.

A3DN21-1 [UniParc]FASTAAdd to Basket

« Hide

MVFIAVFNGV FAMSSLPGTV LGIKAVNGVV IAGEKRLTYD GYVLSKNTRK    50
VHPITKHVGI GFAGLVGDAQ FIIRALRMEA ENYELQLGRE IRVRGLAKIL 100
SLILYSYKLA PLMTEVVVGG FDEKGPQIYV LDPVGSLIED KYVALGSGGP 150
IALGIIEKEY REDIDVDEAE KLAVSAIREA IERDAVSGDG VDVLRITEEG 200
YSLREYMFRR ETS 213
Length:213
Mass (Da):23,342
Last modified:March 20, 2007 - v1
Checksum:iAAA4562478EE4DED
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000575 Genomic DNA. Translation: ABN70031.1.
RefSeqiWP_011839222.1. NC_009033.1.
YP_001040939.1. NC_009033.1.

Genome annotation databases

EnsemblBacteriaiABN70031; ABN70031; Smar_0932.
GeneIDi4907315.
KEGGismr:Smar_0932.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000575 Genomic DNA. Translation: ABN70031.1 .
RefSeqi WP_011839222.1. NC_009033.1.
YP_001040939.1. NC_009033.1.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 399550.Smar_0932.

Protein family/group databases

MEROPSi T01.002.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABN70031 ; ABN70031 ; Smar_0932 .
GeneIDi 4907315.
KEGGi smr:Smar_0932.

Phylogenomic databases

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

Enzyme and pathway databases

BioCyci SMAR399550:GHK2-960-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.
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. "The complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota."
    Anderson I.J., Dharmarajan L., Rodriguez J., Hooper S., Porat I., Ulrich L.E., Elkins J.G., Mavromatis K., Sun H., Land M., Lapidus A., Lucas S., Barry K., Huber H., Zhulin I.B., Whitman W.B., Mukhopadhyay B., Woese C., Bristow J., Kyrpides N.
    BMC Genomics 10:145-145(2009) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 43588 / DSM 3639 / F1.
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 43588 / DSM 3639 / F1.

Entry informationi

Entry nameiPSB1_STAMF
AccessioniPrimary (citable) accession number: A3DN21
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: March 20, 2007
Last modified: September 3, 2014
This is version 54 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

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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