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Protein

Proteasome subunit beta type-7

Gene

psmB7

Organism
Dictyostelium discoideum (Slime mold)
Status
Reviewed-Annotation score: 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 (By similarity).By similarity

Catalytic activityi

Cleavage of peptide bonds with very broad specificity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei35 – 351NucleophileCurated

GO - Molecular functioni

GO - Biological processi

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

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

ReactomeiR-DDI-1236978. Cross-presentation of soluble exogenous antigens (endosomes).
R-DDI-174084. Autodegradation of Cdh1 by Cdh1:APC/C.
R-DDI-174113. SCF-beta-TrCP mediated degradation of Emi1.
R-DDI-174178. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
R-DDI-174184. Cdc20:Phospho-APC/C mediated degradation of Cyclin A.
R-DDI-349425. Autodegradation of the E3 ubiquitin ligase COP1.
R-DDI-450408. AUF1 (hnRNP D0) binds and destabilizes mRNA.
R-DDI-5632684. Hedgehog 'on' state.
R-DDI-5658442. Regulation of RAS by GAPs.
R-DDI-68949. Orc1 removal from chromatin.
R-DDI-69017. CDK-mediated phosphorylation and removal of Cdc6.
R-DDI-69601. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.
R-DDI-983168. Antigen processing: Ubiquitination & Proteasome degradation.

Protein family/group databases

MEROPSiT01.A02.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta type-7 (EC:3.4.25.1)
Gene namesi
Name:psmB7
ORF Names:DDB_G0283679
OrganismiDictyostelium discoideum (Slime mold)
Taxonomic identifieri44689 [NCBI]
Taxonomic lineageiEukaryotaAmoebozoaMycetozoaDictyosteliidaDictyostelium
Proteomesi
  • UP000002195 Componentsi: Chromosome 4, Unassembled WGS sequence

Organism-specific databases

dictyBaseiDDB_G0283679. psmB7.

Subcellular locationi

  • Cytoplasm PROSITE-ProRule annotation
  • Nucleus By similarity

GO - Cellular componenti

  • cytoplasm Source: dictyBase
  • nucleus Source: dictyBase
  • proteasome core complex Source: InterPro
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Propeptidei1 – 3434Removed in mature formBy similarityPRO_0000328484Add
BLAST
Chaini35 – 266232Proteasome subunit beta type-7PRO_0000328483Add
BLAST

Proteomic databases

PaxDbiQ54QR2.
PRIDEiQ54QR2.

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.DDB0232933.

Structurei

3D structure databases

ProteinModelPortaliQ54QR2.
SMRiQ54QR2. Positions 35-253.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG0173. Eukaryota.
COG0638. LUCA.
InParanoidiQ54QR2.
KOiK02739.
OMAiDNCKRNA.
PhylomeDBiQ54QR2.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR000243. Pept_T1A_subB.
IPR024689. Proteasome_bsu_C.
IPR016050. Proteasome_bsu_CS.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view]
PfamiPF12465. Pr_beta_C. 1 hit.
PF00227. Proteasome. 1 hit.
[Graphical view]
PRINTSiPR00141. PROTEASOME.
SUPFAMiSSF56235. SSF56235. 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.

Q54QR2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MENLNRGGFD FDLCNRNNVL EKTGLRMKGF MKTGTTIVGV VYKGGVVLGA
60 70 80 90 100
DTRATEGPIV ADKNCEKIHY IADNIYCCGA GTAADTESAT ALISSKLKLH
110 120 130 140 150
KLSTGKQTRV ITALTMLKQM LFKYQGHISA ALILGGIDIN GPSLHTIYPH
160 170 180 190 200
GSTDQLPYVT MGSGSLAAMA VFEAKYKNDM TKEEAIALVA EAISSGIFND
210 220 230 240 250
LGSGSNVDVT VIEPSGVTVL RNYQTPNERK FRNNPYIFKQ GTTPVLKQDI
260
APLSTKVVIE DIMMGQ
Length:266
Mass (Da):28,659
Last modified:May 24, 2005 - v1
Checksum:iC89700F94FF61842
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AAFI02000056 Genomic DNA. Translation: EAL65606.1.
RefSeqiXP_638961.1. XM_633869.1.

Genome annotation databases

EnsemblProtistsiDDB0232933; DDB0232933; DDB_G0283679.
GeneIDi8624207.
KEGGiddi:DDB_G0283679.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AAFI02000056 Genomic DNA. Translation: EAL65606.1.
RefSeqiXP_638961.1. XM_633869.1.

3D structure databases

ProteinModelPortaliQ54QR2.
SMRiQ54QR2. Positions 35-253.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi44689.DDB0232933.

Protein family/group databases

MEROPSiT01.A02.

Proteomic databases

PaxDbiQ54QR2.
PRIDEiQ54QR2.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblProtistsiDDB0232933; DDB0232933; DDB_G0283679.
GeneIDi8624207.
KEGGiddi:DDB_G0283679.

Organism-specific databases

dictyBaseiDDB_G0283679. psmB7.

Phylogenomic databases

eggNOGiKOG0173. Eukaryota.
COG0638. LUCA.
InParanoidiQ54QR2.
KOiK02739.
OMAiDNCKRNA.
PhylomeDBiQ54QR2.

Enzyme and pathway databases

ReactomeiR-DDI-1236978. Cross-presentation of soluble exogenous antigens (endosomes).
R-DDI-174084. Autodegradation of Cdh1 by Cdh1:APC/C.
R-DDI-174113. SCF-beta-TrCP mediated degradation of Emi1.
R-DDI-174178. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
R-DDI-174184. Cdc20:Phospho-APC/C mediated degradation of Cyclin A.
R-DDI-349425. Autodegradation of the E3 ubiquitin ligase COP1.
R-DDI-450408. AUF1 (hnRNP D0) binds and destabilizes mRNA.
R-DDI-5632684. Hedgehog 'on' state.
R-DDI-5658442. Regulation of RAS by GAPs.
R-DDI-68949. Orc1 removal from chromatin.
R-DDI-69017. CDK-mediated phosphorylation and removal of Cdc6.
R-DDI-69601. Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.
R-DDI-983168. Antigen processing: Ubiquitination & Proteasome degradation.

Miscellaneous databases

PROiQ54QR2.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR000243. Pept_T1A_subB.
IPR024689. Proteasome_bsu_C.
IPR016050. Proteasome_bsu_CS.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view]
PfamiPF12465. Pr_beta_C. 1 hit.
PF00227. Proteasome. 1 hit.
[Graphical view]
PRINTSiPR00141. PROTEASOME.
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS00854. PROTEASOME_BETA_1. 1 hit.
PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

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 nameiPSB7_DICDI
AccessioniPrimary (citable) accession number: Q54QR2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 8, 2008
Last sequence update: May 24, 2005
Last modified: February 17, 2016
This is version 78 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

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.