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A3DN27

- PSB2_STAMF

UniProt

A3DN27 - PSB2_STAMF

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Protein

Proteasome subunit beta 2

Gene

psmB2

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.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 sitei10 – 101NucleophileUniRule 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

Enzyme and pathway databases

BioCyciSMAR399550:GHK2-966-MONOMER.

Protein family/group databases

MEROPSiT01.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta 2UniRule annotation (EC:3.4.25.1UniRule annotation)
Alternative name(s):
20S proteasome beta subunit 2UniRule annotation
Proteasome core protein PsmB 2UniRule annotation
Gene namesi
Name:psmB2UniRule annotation
Ordered Locus Names:Smar_0938
OrganismiStaphylothermus marinus (strain ATCC 43588 / DSM 3639 / F1)
Taxonomic identifieri399550 [NCBI]
Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiDesulfurococcalesDesulfurococcaceaeStaphylothermus
ProteomesiUP000000254: 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 – 99Removed in mature form; by autocatalysisUniRule annotationPRO_0000397420
Chaini10 – 208199Proteasome subunit beta 2PRO_0000397421Add
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.UniRule annotation

Protein-protein interaction databases

STRINGi399550.Smar_0938.

Structurei

3D structure databases

ProteinModelPortaliA3DN27.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.UniRule annotation

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.
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.

A3DN27-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MSGKKIVSKT TTVGIVVGDY VVLAADKRAT AGSLVAHKRV KKIIRIDDYI
60 70 80 90 100
AMTISGLVAD AEIIAEQARF IARKYKLELG RPIKVSALAS NLSIILNAYL
110 120 130 140 150
RMSPYIVQLL LGGYDDNGPH LFYIDLFGSL SEEKYMATGS GSPTAFGVLE
160 170 180 190 200
EEYRSDLSLD EAKELAFKAV SAATKRDGFS GEGVDIVVIG PNTYVEETKL

FKRSIIAK
Length:208
Mass (Da):22,601
Last modified:March 20, 2007 - v1
Checksum:i86B7CEE1347A0AB4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000575 Genomic DNA. Translation: ABN70037.1.
RefSeqiYP_001040945.1. NC_009033.1.

Genome annotation databases

EnsemblBacteriaiABN70037; ABN70037; Smar_0938.
GeneIDi4907384.
KEGGismr:Smar_0938.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000575 Genomic DNA. Translation: ABN70037.1 .
RefSeqi YP_001040945.1. NC_009033.1.

3D structure databases

ProteinModelPortali A3DN27.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 399550.Smar_0938.

Protein family/group databases

MEROPSi T01.002.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABN70037 ; ABN70037 ; Smar_0938 .
GeneIDi 4907384.
KEGGi smr:Smar_0938.

Phylogenomic databases

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

Enzyme and pathway databases

BioCyci SMAR399550:GHK2-966-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 nameiPSB2_STAMF
AccessioniPrimary (citable) accession number: A3DN27
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: March 20, 2007
Last modified: October 29, 2014
This is version 56 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