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O81148 (PSA4A_ARATH) Reviewed, UniProtKB/Swiss-Prot

Last modified June 11, 2014. Version 115. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Proteasome subunit alpha type-4-A

EC=3.4.25.1
Alternative name(s):
20S proteasome alpha subunit C-1
Proteasome 27 kDa subunit
Proteasome component 9
Proteasome subunit alpha type-3
Gene names
Name:PAC1
Synonyms:PRC9, PRS1
Ordered Locus Names:At3g22110
ORF Names:MKA23.2
OrganismArabidopsis thaliana (Mouse-ear cress) [Reference proteome]
Taxonomic identifier3702 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis

Protein attributes

Sequence length250 AA.
Sequence statusComplete.
Protein existenceEvidence at protein level

General annotation (Comments)

Function

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 activity

Cleavage of peptide bonds with very broad specificity.

Subunit structure

Component of the 20S core complex of the 26S proteasome. The 26S proteasome is composed of a core protease (CP), known as the 20S proteasome, capped at one or both ends by the 19S regulatory particle (RP/PA700). 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. Ref.7 Ref.8 Ref.9

Subcellular location

Cytoplasm By similarity. Nucleus By similarity.

Tissue specificity

Ubiquitous low levels, higher expression in siliques and flowers. Ref.2

Sequence similarities

Belongs to the peptidase T1A family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 250250Proteasome subunit alpha type-4-A
PRO_0000124111

Amino acid modifications

Cross-link40Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) Ref.9

Experimental info

Sequence conflict241A → V in CAA73624. Ref.1

Sequences

Sequence LengthMass (Da)Tools
O81148 [UniParc].

Last modified November 1, 1998. Version 1.
Checksum: 5B8F105F2C336E5B

FASTA25027,475
        10         20         30         40         50         60 
MSRRYDSRTT IFSPEGRLYQ VEYAMEAIGN AGSAIGILSK DGVVLIGEKK VTSKLLQTST 

        70         80         90        100        110        120 
SAEKMYKIDD HVACAVAGIM SDANILINTA RVQAQRYTFM YQEPMPVEQL VQSLCDTKQG 

       130        140        150        160        170        180 
YTQFGGLRPF GVSFLFAGWD KHHGFQLYMS DPSGNYGGWK AAAVGANNQA AQSILKQDYK 

       190        200        210        220        230        240 
DDATREEAVE LALKVLTKTM DSTSLTSEKL ELAEVYLTPS KTVKYHVHSP ESLTKLLVKH 

       250 
GVTQPAAETS 

« Hide

References

« Hide 'large scale' references
[1]"The 20S proteasome gene family in Arabidopsis thaliana."
Parmentier Y., Bouchez D., Fleck J., Genschik P.
FEBS Lett. 416:281-285(1997) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: cv. Columbia.
[2]"Molecular organization of the 20S proteasome gene family from Arabidopsis thaliana."
Fu H., Doelling J.H., Arendt C.S., Hochstrasser M., Vierstra R.D.
Genetics 149:677-692(1998) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY, GENE FAMILY, NOMENCLATURE.
Strain: cv. Columbia.
[3]"Structural analysis of Arabidopsis thaliana chromosome 3. II. Sequence features of the 4,251,695 bp regions covered by 90 P1, TAC and BAC clones."
Kaneko T., Katoh T., Sato S., Nakamura Y., Asamizu E., Tabata S.
DNA Res. 7:217-221(2000) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: cv. Columbia.
[4]The Arabidopsis Information Resource (TAIR)
Submitted (APR-2011) to the EMBL/GenBank/DDBJ databases
Cited for: GENOME REANNOTATION.
Strain: cv. Columbia.
[5]"Empirical analysis of transcriptional activity in the Arabidopsis genome."
Yamada K., Lim J., Dale J.M., Chen H., Shinn P., Palm C.J., Southwick A.M., Wu H.C., Kim C.J., Nguyen M., Pham P.K., Cheuk R.F., Karlin-Newmann G., Liu S.X., Lam B., Sakano H., Wu T., Yu G. expand/collapse author list , Miranda M., Quach H.L., Tripp M., Chang C.H., Lee J.M., Toriumi M.J., Chan M.M., Tang C.C., Onodera C.S., Deng J.M., Akiyama K., Ansari Y., Arakawa T., Banh J., Banno F., Bowser L., Brooks S.Y., Carninci P., Chao Q., Choy N., Enju A., Goldsmith A.D., Gurjal M., Hansen N.F., Hayashizaki Y., Johnson-Hopson C., Hsuan V.W., Iida K., Karnes M., Khan S., Koesema E., Ishida J., Jiang P.X., Jones T., Kawai J., Kamiya A., Meyers C., Nakajima M., Narusaka M., Seki M., Sakurai T., Satou M., Tamse R., Vaysberg M., Wallender E.K., Wong C., Yamamura Y., Yuan S., Shinozaki K., Davis R.W., Theologis A., Ecker J.R.
Science 302:842-846(2003) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Strain: cv. Columbia.
[6]"Full-length cDNA from Arabidopsis thaliana."
Brover V.V., Troukhan M.E., Alexandrov N.A., Lu Y.-P., Flavell R.B., Feldmann K.A.
Submitted (MAR-2002) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[7]"Structure and functional analyses of the 26S proteasome subunits from plants."
Fu H., Girod P.-A., Doelling J.H., van Nocker S., Hochstrasser M., Finley D., Vierstra R.D.
Mol. Biol. Rep. 26:137-146(1999) [PubMed] [Europe PMC] [Abstract]
Cited for: SUBUNIT.
[8]"Purification of the Arabidopsis 26 S proteasome: biochemical and molecular analyses revealed the presence of multiple isoforms."
Yang P., Fu H., Walker J., Papa C.M., Smalle J., Ju Y.-M., Vierstra R.D.
J. Biol. Chem. 279:6401-6413(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: SUBUNIT, IDENTIFICATION BY MASS SPECTROMETRY.
[9]"Affinity purification of the Arabidopsis 26 S proteasome reveals a diverse array of plant proteolytic complexes."
Book A.J., Gladman N.P., Lee S.S., Scalf M., Smith L.M., Vierstra R.D.
J. Biol. Chem. 285:25554-25569(2010) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY, CHARACTERIZATION OF THE 26S PROTEASOME COMPLEX, SUBUNIT, UBIQUITINATION AT LYS-40.
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
Y13181 mRNA. Translation: CAA73624.1.
AF043521 mRNA. Translation: AAC32057.1.
AP001306 Genomic DNA. Translation: BAB03060.1.
CP002686 Genomic DNA. Translation: AEE76591.1.
AF386953 mRNA. Translation: AAK62398.1.
BT000001 mRNA. Translation: AAN15320.1.
AY085914 mRNA. Translation: AAM63126.1.
PIRT51969.
RefSeqNP_188850.1. NM_113108.4.
UniGeneAt.20713.

3D structure databases

ProteinModelPortalO81148.
SMRO81148. Positions 2-223.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

BioGrid7106. 1 interaction.
IntActO81148. 2 interactions.

Protein family/group databases

MEROPST01.973.

Proteomic databases

PaxDbO81148.
PRIDEO81148.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsAT3G22110.1; AT3G22110.1; AT3G22110.
GeneID821774.
KEGGath:AT3G22110.

Organism-specific databases

TAIRAT3G22110.

Phylogenomic databases

eggNOGCOG0638.
HOGENOMHOG000091085.
InParanoidO81148.
KOK02728.
OMAKQEYKDD.
PhylomeDBO81148.

Enzyme and pathway databases

BioCycARA:AT3G22110-MONOMER.

Gene expression databases

GenevestigatorO81148.

Family and domain databases

Gene3D3.60.20.10. 1 hit.
InterProIPR029055. Ntn_hydrolases_N.
IPR000426. Proteasome_asu_N.
IPR023332. Proteasome_suA-type.
IPR001353. Proteasome_sua/b.
[Graphical view]
PfamPF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
[Graphical view]
SMARTSM00948. Proteasome_A_N. 1 hit.
[Graphical view]
SUPFAMSSF56235. SSF56235. 1 hit.
PROSITEPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Other

PROO81148.

Entry information

Entry namePSA4A_ARATH
AccessionPrimary (citable) accession number: O81148
Secondary accession number(s): O23711
Entry history
Integrated into UniProtKB/Swiss-Prot: December 8, 2000
Last sequence update: November 1, 1998
Last modified: June 11, 2014
This is version 115 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Peptidase families

Classification of peptidase families and list of entries

Arabidopsis thaliana

Arabidopsis thaliana: entries and gene names