Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

Q55DY7

- PSB2_DICDI

UniProt

Q55DY7 - PSB2_DICDI

(max 400 entries)x

Your basket is currently empty.

Select item(s) and click on "Add to basket" to create your own collection here
(400 entries max)

Protein

Proteasome subunit beta type-2

Gene

psmB2

Organism
Dictyostelium discoideum (Slime mold)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi

Functioni

The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. This subunit has a chymotrypsin-like activity (By similarity).By similarity

Catalytic activityi

Cleavage of peptide bonds with very broad specificity.

GO - Molecular functioni

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

GO - Biological processi

  1. proteolysis Source: dictyBase
  2. proteolysis involved in cellular protein catabolic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

ReactomeiREACT_204617. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_210566. AUF1 (hnRNP D0) destabilizes mRNA.
REACT_212010. Regulation of activated PAK-2p34 by proteasome mediated degradation.
REACT_214682. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_217211. ER-Phagosome pathway.
REACT_217636. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_221036. Separation of Sister Chromatids.
REACT_225025. APC/C:Cdc20 mediated degradation of Securin.
REACT_226311. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_226712. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_95813. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.

Protein family/group databases

MEROPSiT01.984.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta type-2 (EC:3.4.25.1)
Gene namesi
Name:psmB2
ORF Names:DDB_G0269472
OrganismiDictyostelium discoideum (Slime mold)
Taxonomic identifieri44689 [NCBI]
Taxonomic lineageiEukaryotaAmoebozoaMycetozoaDictyosteliidaDictyostelium
ProteomesiUP000002195: Chromosome 1, UP000002195: Unassembled WGS sequence

Organism-specific databases

dictyBaseiDDB_G0269472. psmB2.

Subcellular locationi

Cytoplasm PROSITE-ProRule annotation. Nucleus By similarity

GO - Cellular componenti

  1. cytoplasm Source: dictyBase
  2. nucleus Source: dictyBase
  3. proteasome core complex Source: InterPro
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 198198Proteasome subunit beta type-2PRO_0000328130Add
BLAST

Proteomic databases

PRIDEiQ55DY7.

Interactioni

Subunit structurei

The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is composed of 28 subunits that are arranged in four stacked rings, resulting in a barrel-shaped structure. The two end rings are each formed by seven alpha subunits, and the two central rings are each formed by seven beta subunits. The catalytic chamber with the active sites is on the inside of the barrel (By similarity).By similarity

Protein-protein interaction databases

STRINGi44689.DDB_0232958.

Structurei

3D structure databases

ProteinModelPortaliQ55DY7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG0638.
InParanoidiQ55DY7.
KOiK02734.
OMAiHFVRGEL.
PhylomeDBiQ55DY7.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q55DY7 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
METLLAFKVK GGVLCLADSS VNHSIVKMKD DEDKILEIDG HKLLLSAGEA
60 70 80 90 100
GDRVQFTEYI SKNIKLYSLR NSYPMSTPAA ANFIRNELAT SIRSHPYSIN
110 120 130 140 150
LILAGYDKEV EDGGTSLYYM DYLGSLQKLN FGCHGYASYF LLGLLDRHHK
160 170 180 190
CDLSLEDGIN LMHLCTTELK TRFLVSGKYT LKFVSSEGIK VLPFNAPQ
Length:198
Mass (Da):22,110
Last modified:May 24, 2005 - v1
Checksum:i783749EF9ADEEB73
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AAFI02000005 Genomic DNA. Translation: EAL72086.1.
RefSeqiXP_645994.1. XM_640902.1.

Genome annotation databases

EnsemblProtistsiDDB0232958; DDB0232958; DDB_G0269472.
GeneIDi8616940.
KEGGiddi:DDB_G0269472.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AAFI02000005 Genomic DNA. Translation: EAL72086.1 .
RefSeqi XP_645994.1. XM_640902.1.

3D structure databases

ProteinModelPortali Q55DY7.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 44689.DDB_0232958.

Protein family/group databases

MEROPSi T01.984.

Proteomic databases

PRIDEi Q55DY7.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblProtistsi DDB0232958 ; DDB0232958 ; DDB_G0269472 .
GeneIDi 8616940.
KEGGi ddi:DDB_G0269472.

Organism-specific databases

dictyBasei DDB_G0269472. psmB2.

Phylogenomic databases

eggNOGi COG0638.
InParanoidi Q55DY7.
KOi K02734.
OMAi HFVRGEL.
PhylomeDBi Q55DY7.

Enzyme and pathway databases

Reactomei REACT_204617. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_210566. AUF1 (hnRNP D0) destabilizes mRNA.
REACT_212010. Regulation of activated PAK-2p34 by proteasome mediated degradation.
REACT_214682. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_217211. ER-Phagosome pathway.
REACT_217636. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_221036. Separation of Sister Chromatids.
REACT_225025. APC/C:Cdc20 mediated degradation of Securin.
REACT_226311. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_226712. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_95813. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.

Miscellaneous databases

PROi Q55DY7.

Family and domain databases

Gene3Di 3.60.20.10. 1 hit.
InterProi IPR029055. Ntn_hydrolases_N.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view ]
Pfami PF00227. Proteasome. 1 hit.
[Graphical view ]
SUPFAMi SSF56235. SSF56235. 1 hit.
PROSITEi PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "The genome of the social amoeba Dictyostelium discoideum."
    Eichinger L., Pachebat J.A., Gloeckner G., Rajandream M.A., Sucgang R., Berriman M., Song J., Olsen R., Szafranski K., Xu Q., Tunggal B., Kummerfeld S., Madera M., Konfortov B.A., Rivero F., Bankier A.T., Lehmann R., Hamlin N.
    , Davies R., Gaudet P., Fey P., Pilcher K., Chen G., Saunders D., Sodergren E.J., Davis P., Kerhornou A., Nie X., Hall N., Anjard C., Hemphill L., Bason N., Farbrother P., Desany B., Just E., Morio T., Rost R., Churcher C.M., Cooper J., Haydock S., van Driessche N., Cronin A., Goodhead I., Muzny D.M., Mourier T., Pain A., Lu M., Harper D., Lindsay R., Hauser H., James K.D., Quiles M., Madan Babu M., Saito T., Buchrieser C., Wardroper A., Felder M., Thangavelu M., Johnson D., Knights A., Loulseged H., Mungall K.L., Oliver K., Price C., Quail M.A., Urushihara H., Hernandez J., Rabbinowitsch E., Steffen D., Sanders M., Ma J., Kohara Y., Sharp S., Simmonds M.N., Spiegler S., Tivey A., Sugano S., White B., Walker D., Woodward J.R., Winckler T., Tanaka Y., Shaulsky G., Schleicher M., Weinstock G.M., Rosenthal A., Cox E.C., Chisholm R.L., Gibbs R.A., Loomis W.F., Platzer M., Kay R.R., Williams J.G., Dear P.H., Noegel A.A., Barrell B.G., Kuspa A.
    Nature 435:43-57(2005) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: AX4.

Entry informationi

Entry nameiPSB2_DICDI
AccessioniPrimary (citable) accession number: Q55DY7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 8, 2008
Last sequence update: May 24, 2005
Last modified: October 29, 2014
This is version 63 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
  2. Peptidase families
    Classification of peptidase families and list of entries
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3