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D3SSQ6

- PSB_NATMM

UniProt

D3SSQ6 - PSB_NATMM

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Protein

Proteasome subunit beta

Gene
psmB, Nmag_3351
Organism
Natrialba magadii (strain ATCC 43099 / DSM 3394 / NCIMB 2190 / MS3) (Natronobacterium magadii)
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 sitei49 – 491Nucleophile 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

BioCyciNMAG547559:GJAP-3404-MONOMER.

Protein family/group databases

MEROPSiT01.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta (EC:3.4.25.1)
Alternative name(s):
20S proteasome beta subunit
Proteasome core protein PsmB
Gene namesi
Name:psmB
Ordered Locus Names:Nmag_3351
OrganismiNatrialba magadii (strain ATCC 43099 / DSM 3394 / NCIMB 2190 / MS3) (Natronobacterium magadii)
Taxonomic identifieri547559 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaHalobacteriaHalobacterialesHalobacteriaceaeNatrialba
ProteomesiUP000001879: 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 – 4848Removed in mature form; by autocatalysis By similarityPRO_0000397382Add
BLAST
Chaini49 – 243195Proteasome subunit betaUniRule annotationPRO_0000397383Add
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.

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.

Phylogenomic databases

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.
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.
PROSITEiPS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

D3SSQ6-1 [UniParc]FASTAAdd to Basket

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MRAPQHNSDF SRTVNQLADD PNPYEPEVGS MPKNEFSRAD LDNVNKTGTT    50
TIGITTEDGV VIATDMRASL GGRFVSNKNV QKVEQIHPTG ALTMVGSVGG 100
AQSFIGSLRA EVNLYEARRG EPISMDALAT LAGNFARGGP FFAIHPILGG 150
VDEEGSHVYS IDPAGGVMED DYTVTGSGMQ LAYGLLEQEF EEDLSNDEAT 200
TVAARAIKSA AERDTGSGNG VFLCEITDEG VDIHGHHDFD EVV 243
Length:243
Mass (Da):25,850
Last modified:April 20, 2010 - v1
Checksum:i15DDE77BF93C6CAF
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001932 Genomic DNA. Translation: ADD06901.1.
RefSeqiYP_003481463.1. NC_013922.1.

Genome annotation databases

EnsemblBacteriaiADD06901; ADD06901; Nmag_3351.
GeneIDi8826217.
KEGGinmg:Nmag_3351.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001932 Genomic DNA. Translation: ADD06901.1 .
RefSeqi YP_003481463.1. NC_013922.1.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protein family/group databases

MEROPSi T01.002.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ADD06901 ; ADD06901 ; Nmag_3351 .
GeneIDi 8826217.
KEGGi nmg:Nmag_3351.

Phylogenomic databases

HOGENOMi HOG000091083.
KOi K03433.
OMAi MVDWLGT.

Enzyme and pathway databases

BioCyci NMAG547559:GJAP-3404-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.
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 PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Complete sequence of chromosome of Natrialba magadii ATCC 43099."
    US DOE Joint Genome Institute
    Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L., Pitluck S., Davenport K., Saunders E., Detter J.C., Han C., Tapia R., Land M., Hauser L., Kyrpides N., Mikhailova N., De Castro R.E., Maupin-Furlow J.A., Woyke T.
    Submitted (FEB-2010) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 43099 / DSM 3394 / NCIMB 2190 / MS3.

Entry informationi

Entry nameiPSB_NATMM
AccessioniPrimary (citable) accession number: D3SSQ6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: April 20, 2010
Last modified: June 11, 2014
This is version 23 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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