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Q6M0L9

- PSA_METMP

UniProt

Q6M0L9 - PSA_METMP

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Protein

Proteasome subunit alpha

Gene

psmA

Organism
Methanococcus maripaludis (strain S2 / LL)
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

GO - Molecular functioni

  1. threonine-type endopeptidase activity Source: UniProtKB-KW

GO - Biological processi

  1. ubiquitin-dependent protein catabolic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

BioCyciMMAR267377:GJ77-273-MONOMER.

Protein family/group databases

MEROPSiT01.975.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit alphaUniRule annotation (EC:3.4.25.1UniRule annotation)
Alternative name(s):
20S proteasome alpha subunitUniRule annotation
Proteasome core protein PsmAUniRule annotation
Gene namesi
Name:psmAUniRule annotation
Ordered Locus Names:MMP0251
OrganismiMethanococcus maripaludis (strain S2 / LL)
Taxonomic identifieri267377 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaMethanococciMethanococcalesMethanococcaceaeMethanococcus
ProteomesiUP000000590: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-KW
  2. proteasome core complex, alpha-subunit complex Source: InterPro
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 259259Proteasome subunit alphaPRO_0000124177Add
BLAST

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

DIPiDIP-59085N.
STRINGi267377.MMP0251.

Structurei

3D structure databases

ProteinModelPortaliQ6M0L9.
SMRiQ6M0L9. Positions 6-245.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000091085.
KOiK03432.
OMAiCAMSGLT.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
HAMAPiMF_00289_A. Proteasome_A_A.
InterProiIPR029055. Ntn_hydrolases_N.
IPR019982. Proteasome_asu_arc.
IPR000426. Proteasome_asu_N.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
[Graphical view]
SMARTiSM00948. Proteasome_A_N. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
TIGRFAMsiTIGR03633. arc_protsome_A. 1 hit.
PROSITEiPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q6M0L9-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MQQMVPASGY DRAITIFSPE GRLYQVEYAR EAVRRGTTAV GIKCKDGVVL
60 70 80 90 100
AVDRRITSKL IDVSSIEKIF QIDDHIVAAT SGLVADARVL IDRARIEAQM
110 120 130 140 150
NRVSYGEAIT VEALAKKICD IKQAYTQHGG ARPFGLALLI TGIDRHSARL
160 170 180 190 200
FETDPSGALI EYKATAIGSG RPIAMEVLES KYDENMTVSE GMELALYALS
210 220 230 240 250
KTTEELKPEN IDMAIIKDSG KLVEKISVDE IEKIVKAVYE KVKAEEEEAE

KNKGEEDSE
Length:259
Mass (Da):28,514
Last modified:July 5, 2004 - v1
Checksum:i02FAFF238A6BC764
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX950229 Genomic DNA. Translation: CAF29807.1.
RefSeqiNP_987371.1. NC_005791.1.

Genome annotation databases

EnsemblBacteriaiCAF29807; CAF29807; MMP0251.
GeneIDi2761045.
KEGGimmp:MMP0251.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX950229 Genomic DNA. Translation: CAF29807.1 .
RefSeqi NP_987371.1. NC_005791.1.

3D structure databases

ProteinModelPortali Q6M0L9.
SMRi Q6M0L9. Positions 6-245.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

DIPi DIP-59085N.
STRINGi 267377.MMP0251.

Protein family/group databases

MEROPSi T01.975.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAF29807 ; CAF29807 ; MMP0251 .
GeneIDi 2761045.
KEGGi mmp:MMP0251.

Phylogenomic databases

eggNOGi COG0638.
HOGENOMi HOG000091085.
KOi K03432.
OMAi CAMSGLT.

Enzyme and pathway databases

BioCyci MMAR267377:GJ77-273-MONOMER.

Family and domain databases

Gene3Di 3.60.20.10. 1 hit.
HAMAPi MF_00289_A. Proteasome_A_A.
InterProi IPR029055. Ntn_hydrolases_N.
IPR019982. Proteasome_asu_arc.
IPR000426. Proteasome_asu_N.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view ]
Pfami PF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
[Graphical view ]
SMARTi SM00948. Proteasome_A_N. 1 hit.
[Graphical view ]
SUPFAMi SSF56235. SSF56235. 1 hit.
TIGRFAMsi TIGR03633. arc_protsome_A. 1 hit.
PROSITEi PS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: S2 / LL.

Entry informationi

Entry nameiPSA_METMP
AccessioniPrimary (citable) accession number: Q6M0L9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: July 5, 2004
Last modified: October 29, 2014
This is version 72 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