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Protein

Proteasome subunit beta type-3

Gene

PBC1

Organism
Oryza sativa subsp. japonica (Rice)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

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.

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

Keywords - Molecular functioni

Hydrolase, Protease, Threonine protease

Enzyme and pathway databases

ReactomeiREACT_205610. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_205939. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_207219. APC/C:Cdc20 mediated degradation of Securin.
REACT_212204. Separation of Sister Chromatids.
REACT_214064. ER-Phagosome pathway.
REACT_223172. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_229639. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_233422. Ubiquitin-dependent degradation of Cyclin D1.
REACT_235410. CDK-mediated phosphorylation and removal of Cdc6.
REACT_243301. Autodegradation of Cdh1 by Cdh1:APC/C.

Protein family/group databases

MEROPSiT01.P02.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit beta type-3 (EC:3.4.25.1)
Alternative name(s):
20S proteasome alpha subunit C
20S proteasome subunit beta-3
Gene namesi
Name:PBC1
Ordered Locus Names:Os06g0643100, LOC_Os06g43570
ORF Names:P0416A11.24
OrganismiOryza sativa subsp. japonica (Rice)
Taxonomic identifieri39947 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaeBEP cladeEhrhartoideaeOryzeaeOryza
ProteomesiUP000000763: Chromosome 6

Organism-specific databases

GrameneiQ9LST7.

Subcellular locationi

Cytoplasm PROSITE-ProRule annotation. Nucleus By similarity

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
  2. nucleus Source: UniProtKB-SubCell
  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 – 204204Proteasome subunit beta type-3PRO_0000148067Add
BLAST

Proteomic databases

PaxDbiQ9LST7.
PRIDEiQ9LST7.

Expressioni

Gene expression databases

ExpressionAtlasiQ9LST7. baseline.

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

Structurei

3D structure databases

ProteinModelPortaliQ9LST7.
SMRiQ9LST7. Positions 2-204.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1B family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000090523.
InParanoidiQ9LST7.
KOiK02735.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR016050. Proteasome_bsu_CS.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS00854. PROTEASOME_BETA_1. 1 hit.
PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q9LST7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSIFEYNGSA VVAMVGKNCF AIASDRRLGV QLQTVATDFQ RVFKIHDKLY
60 70 80 90 100
IGLSGLATDA QTLYQRLVFR HKLYQLREER DMKPQTFASL VSALLYEKRF
110 120 130 140 150
GPYFCQPVIA GLGEDNEPFI CTMDCIGAKE LAKDFVVSGT ASESLYGACE
160 170 180 190 200
SMYKPNMEPE ELFETISQAL QSSVDRDCLS GWGGFVLLVT PTEVKECVIK

GRMD
Length:204
Mass (Da):22,802
Last modified:October 1, 2000 - v1
Checksum:i930755661DB619CF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB026565 mRNA. Translation: BAA96836.1.
AP003523 Genomic DNA. Translation: BAD37365.1.
RefSeqiNP_001058176.1. NM_001064711.1.
UniGeneiOs.99804.

Genome annotation databases

EnsemblPlantsiOS06T0643100-01; OS06T0643100-01; OS06G0643100.
GeneIDi4341637.
KEGGiosa:4341637.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB026565 mRNA. Translation: BAA96836.1.
AP003523 Genomic DNA. Translation: BAD37365.1.
RefSeqiNP_001058176.1. NM_001064711.1.
UniGeneiOs.99804.

3D structure databases

ProteinModelPortaliQ9LST7.
SMRiQ9LST7. Positions 2-204.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

MEROPSiT01.P02.

Proteomic databases

PaxDbiQ9LST7.
PRIDEiQ9LST7.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiOS06T0643100-01; OS06T0643100-01; OS06G0643100.
GeneIDi4341637.
KEGGiosa:4341637.

Organism-specific databases

GrameneiQ9LST7.

Phylogenomic databases

eggNOGiCOG0638.
HOGENOMiHOG000090523.
InParanoidiQ9LST7.
KOiK02735.

Enzyme and pathway databases

ReactomeiREACT_205610. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_205939. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_207219. APC/C:Cdc20 mediated degradation of Securin.
REACT_212204. Separation of Sister Chromatids.
REACT_214064. ER-Phagosome pathway.
REACT_223172. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_229639. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_233422. Ubiquitin-dependent degradation of Cyclin D1.
REACT_235410. CDK-mediated phosphorylation and removal of Cdc6.
REACT_243301. Autodegradation of Cdh1 by Cdh1:APC/C.

Gene expression databases

ExpressionAtlasiQ9LST7. baseline.

Family and domain databases

Gene3Di3.60.20.10. 1 hit.
InterProiIPR029055. Ntn_hydrolases_N.
IPR016050. Proteasome_bsu_CS.
IPR001353. Proteasome_sua/b.
IPR023333. Proteasome_suB-type.
[Graphical view]
PfamiPF00227. Proteasome. 1 hit.
[Graphical view]
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiPS00854. PROTEASOME_BETA_1. 1 hit.
PS51476. PROTEASOME_BETA_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Primary structural features of the 20S proteasome subunits of rice (Oryza sativa)."
    Sassa H., Oguchi S., Inoue T., Hirano H.
    Gene 250:61-66(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Strain: cv. Nipponbare.
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: cv. Nipponbare.

Entry informationi

Entry nameiPSB3_ORYSJ
AccessioniPrimary (citable) accession number: Q9LST7
Secondary accession number(s): Q67WV4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 18, 2001
Last sequence update: October 1, 2000
Last modified: January 7, 2015
This is version 96 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. Oryza sativa (rice)
    Index of Oryza sativa entries and their corresponding gene designations
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.