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A3CUS9

- PSB_METMJ

UniProt

A3CUS9 - PSB_METMJ

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Protein

Proteasome subunit beta

Gene

psmB

Organism
Methanoculleus marisnigri (strain ATCC 35101 / DSM 1498 / JR1)
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 sitei12 – 121NucleophileUniRule 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

BioCyciMMAR368407:GH7L-1222-MONOMER.

Protein family/group databases

MEROPSiT01.002.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit betaUniRule annotation (EC:3.4.25.1UniRule annotation)
Alternative name(s):
20S proteasome beta subunitUniRule annotation
Proteasome core protein PsmBUniRule annotation
Gene namesi
Name:psmBUniRule annotation
Ordered Locus Names:Memar_1198
OrganismiMethanoculleus marisnigri (strain ATCC 35101 / DSM 1498 / JR1)
Taxonomic identifieri368407 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaMethanomicrobiaMethanomicrobialesMethanomicrobiaceaeMethanoculleus
ProteomesiUP000002146: 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 – 1111Removed in mature form; by autocatalysisUniRule annotationPRO_0000397358Add
BLAST
Chaini12 – 214203Proteasome subunit betaPRO_0000397359Add
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

STRINGi368407.Memar_1198.

Structurei

3D structure databases

ProteinModelPortaliA3CUS9.
SMRiA3CUS9. Positions 12-199.
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.

A3CUS9 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MLDTSQEIMK GTTTVGLIFD GGVVLATEMR ATMGNMIASK RAKKIYQITP
60 70 80 90 100
RIGLTTAGGV GDAQQLVRIL QVECNLFEMR RGKTMSVGAA STLLSNYLNQ
110 120 130 140 150
NRYYPYYVQL LMGGFDDEGP SVYSVDAMGG ATKEEDIVAT GSGSPFAYGV
160 170 180 190 200
LEDQYRAGMK EDDAKDLAVR AVRSAMRRDS ASGEDIMVVV ITKDKYEEHI
210
ESGLQRPSAA RPTL
Length:214
Mass (Da):23,271
Last modified:March 20, 2007 - v1
Checksum:i075486C386A0B8A1
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000562 Genomic DNA. Translation: ABN57129.1.
RefSeqiWP_011844040.1. NC_009051.1.
YP_001047111.1. NC_009051.1.

Genome annotation databases

EnsemblBacteriaiABN57129; ABN57129; Memar_1198.
GeneIDi4848419.
KEGGimem:Memar_1198.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000562 Genomic DNA. Translation: ABN57129.1 .
RefSeqi WP_011844040.1. NC_009051.1.
YP_001047111.1. NC_009051.1.

3D structure databases

ProteinModelPortali A3CUS9.
SMRi A3CUS9. Positions 12-199.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 368407.Memar_1198.

Protein family/group databases

MEROPSi T01.002.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABN57129 ; ABN57129 ; Memar_1198 .
GeneIDi 4848419.
KEGGi mem:Memar_1198.

Phylogenomic databases

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

Enzyme and pathway databases

BioCyci MMAR368407:GH7L-1222-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 35101 / DSM 1498 / JR1.

Entry informationi

Entry nameiPSB_METMJ
AccessioniPrimary (citable) accession number: A3CUS9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 10, 2010
Last sequence update: March 20, 2007
Last modified: October 29, 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, 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