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Protein

Putative proteasome subunit alpha type-4-B

Gene

PAC2

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein uncertaini

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.PROSITE-ProRule 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

ReactomeiREACT_106068. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_107429. Orc1 removal from chromatin.
REACT_185297. Separation of Sister Chromatids.
REACT_187712. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_187719. ER-Phagosome pathway.
REACT_187848. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_240263. Ubiquitin-dependent degradation of Cyclin D1.
REACT_241531. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_244054. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_252436. CDK-mediated phosphorylation and removal of Cdc6.
REACT_94347. APC/C:Cdc20 mediated degradation of Securin.

Protein family/group databases

MEROPSiT01.973.

Names & Taxonomyi

Protein namesi
Recommended name:
Putative proteasome subunit alpha type-4-B (EC:3.4.25.1)
Alternative name(s):
20S proteasome alpha subunit C-2
Proteasome subunit alpha type-3
Gene namesi
Name:PAC2
Ordered Locus Names:At4g15165
ORF Names:dl3625w, FCAALL.211
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
ProteomesiUP000006548: Chromosome 4

Organism-specific databases

TAIRiAT4G15165.

Subcellular locationi

Cytoplasm By similarity. Nucleus By similarity

GO - Cellular componenti

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

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 208208Putative proteasome subunit alpha type-4-BPRO_0000423170Add
BLAST

Interactioni

Subunit structurei

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.2 Publications

Structurei

3D structure databases

ProteinModelPortaliF4JJE5.
SMRiF4JJE5. Positions 2-181.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.PROSITE-ProRule annotation

Phylogenomic databases

InParanoidiF4JJE5.

Family and domain databases

Gene3Di3.60.20.10. 2 hits.
InterProiIPR029055. Ntn_hydrolases_N.
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.
PROSITEiPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

F4JJE5-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSRRYDSRTT IFSPEGRLYQ VEYAMEAIGN AGSAIGILAK DGVVLVGEKK
60 70 80 90 100
VTSKLLQTSS SMEKMYKIDD HVACAVAGIM SDANILINTA RVQAQRWDRN
110 120 130 140 150
HGFQLYMSDP SGNYGGWQAA AVGANNQAAQ SILKQDYKDD ATREEVVQLA
160 170 180 190 200
IKVLSKTMDS TSLTAEKLEL AELYLTPSKC VKYHVHSPDS LTKLLVKHGV

TQPAAETS
Length:208
Mass (Da):22,731
Last modified:June 28, 2011 - v1
Checksum:i86ADEF2F44EC0DAA
GO

Sequence cautioni

The sequence CAB10295.1 differs from that shown. Reason: Erroneous gene model prediction. The predicted gene has been split into 2 genes: At4g15160 and At4g15165.Curated
The sequence CAB78558.1 differs from that shown. Reason: Erroneous gene model prediction. The predicted gene has been split into 2 genes: At4g15160 and At4g15165.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z97338 Genomic DNA. Translation: CAB10295.1. Sequence problems.
AL161540 Genomic DNA. Translation: CAB78558.1. Sequence problems.
CP002687 Genomic DNA. Translation: AEE83564.1.
PIRiE71415.
RefSeqiNP_001190735.1. NM_001203806.1.
UniGeneiAt.75408.

Genome annotation databases

EnsemblPlantsiAT4G15165.1; AT4G15165.1; AT4G15165.
GeneIDi10723067.
KEGGiath:AT4G15165.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z97338 Genomic DNA. Translation: CAB10295.1. Sequence problems.
AL161540 Genomic DNA. Translation: CAB78558.1. Sequence problems.
CP002687 Genomic DNA. Translation: AEE83564.1.
PIRiE71415.
RefSeqiNP_001190735.1. NM_001203806.1.
UniGeneiAt.75408.

3D structure databases

ProteinModelPortaliF4JJE5.
SMRiF4JJE5. Positions 2-181.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

MEROPSiT01.973.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT4G15165.1; AT4G15165.1; AT4G15165.
GeneIDi10723067.
KEGGiath:AT4G15165.

Organism-specific databases

TAIRiAT4G15165.

Phylogenomic databases

InParanoidiF4JJE5.

Enzyme and pathway databases

ReactomeiREACT_106068. Autodegradation of Cdh1 by Cdh1:APC/C.
REACT_107429. Orc1 removal from chromatin.
REACT_185297. Separation of Sister Chromatids.
REACT_187712. Cross-presentation of soluble exogenous antigens (endosomes).
REACT_187719. ER-Phagosome pathway.
REACT_187848. Antigen processing: Ubiquitination & Proteasome degradation.
REACT_240263. Ubiquitin-dependent degradation of Cyclin D1.
REACT_241531. APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1.
REACT_244054. Autodegradation of the E3 ubiquitin ligase COP1.
REACT_252436. CDK-mediated phosphorylation and removal of Cdc6.
REACT_94347. APC/C:Cdc20 mediated degradation of Securin.

Family and domain databases

Gene3Di3.60.20.10. 2 hits.
InterProiIPR029055. Ntn_hydrolases_N.
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.
PROSITEiPS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Analysis of 1.9 Mb of contiguous sequence from chromosome 4 of Arabidopsis thaliana."
    Bevan M., Bancroft I., Bent E., Love K., Goodman H.M., Dean C., Bergkamp R., Dirkse W., van Staveren M., Stiekema W., Drost L., Ridley P., Hudson S.-A., Patel K., Murphy G., Piffanelli P., Wedler H., Wedler E.
    , Wambutt R., Weitzenegger T., Pohl T., Terryn N., Gielen J., Villarroel R., De Clercq R., van Montagu M., Lecharny A., Aubourg S., Gy I., Kreis M., Lao N., Kavanagh T., Hempel S., Kotter P., Entian K.-D., Rieger M., Schaefer M., Funk B., Mueller-Auer S., Silvey M., James R., Monfort A., Pons A., Puigdomenech P., Douka A., Voukelatou E., Milioni D., Hatzopoulos P., Piravandi E., Obermaier B., Hilbert H., Duesterhoeft A., Moores T., Jones J.D.G., Eneva T., Palme K., Benes V., Rechmann S., Ansorge W., Cooke R., Berger C., Delseny M., Voet M., Volckaert G., Mewes H.-W., Klosterman S., Schueller C., Chalwatzis N.
    Nature 391:485-488(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: cv. Columbia.
  2. "Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana."
    Mayer K.F.X., Schueller C., Wambutt R., Murphy G., Volckaert G., Pohl T., Duesterhoeft A., Stiekema W., Entian K.-D., Terryn N., Harris B., Ansorge W., Brandt P., Grivell L.A., Rieger M., Weichselgartner M., de Simone V., Obermaier B.
    , Mache R., Mueller M., Kreis M., Delseny M., Puigdomenech P., Watson M., Schmidtheini T., Reichert B., Portetelle D., Perez-Alonso M., Boutry M., Bancroft I., Vos P., Hoheisel J., Zimmermann W., Wedler H., Ridley P., Langham S.-A., McCullagh B., Bilham L., Robben J., van der Schueren J., Grymonprez B., Chuang Y.-J., Vandenbussche F., Braeken M., Weltjens I., Voet M., Bastiaens I., Aert R., Defoor E., Weitzenegger T., Bothe G., Ramsperger U., Hilbert H., Braun M., Holzer E., Brandt A., Peters S., van Staveren M., Dirkse W., Mooijman P., Klein Lankhorst R., Rose M., Hauf J., Koetter P., Berneiser S., Hempel S., Feldpausch M., Lamberth S., Van den Daele H., De Keyser A., Buysshaert C., Gielen J., Villarroel R., De Clercq R., van Montagu M., Rogers J., Cronin A., Quail M.A., Bray-Allen S., Clark L., Doggett J., Hall S., Kay M., Lennard N., McLay K., Mayes R., Pettett A., Rajandream M.A., Lyne M., Benes V., Rechmann S., Borkova D., Bloecker H., Scharfe M., Grimm M., Loehnert T.-H., Dose S., de Haan M., Maarse A.C., Schaefer M., Mueller-Auer S., Gabel C., Fuchs M., Fartmann B., Granderath K., Dauner D., Herzl A., Neumann S., Argiriou A., Vitale D., Liguori R., Piravandi E., Massenet O., Quigley F., Clabauld G., Muendlein A., Felber R., Schnabl S., Hiller R., Schmidt W., Lecharny A., Aubourg S., Chefdor F., Cooke R., Berger C., Monfort A., Casacuberta E., Gibbons T., Weber N., Vandenbol M., Bargues M., Terol J., Torres A., Perez-Perez A., Purnelle B., Bent E., Johnson S., Tacon D., Jesse T., Heijnen L., Schwarz S., Scholler P., Heber S., Francs P., Bielke C., Frishman D., Haase D., Lemcke K., Mewes H.-W., Stocker S., Zaccaria P., Bevan M., Wilson R.K., de la Bastide M., Habermann K., Parnell L., Dedhia N., Gnoj L., Schutz K., Huang E., Spiegel L., Sekhon M., Murray J., Sheet P., Cordes M., Abu-Threideh J., Stoneking T., Kalicki J., Graves T., Harmon G., Edwards J., Latreille P., Courtney L., Cloud J., Abbott A., Scott K., Johnson D., Minx P., Bentley D., Fulton B., Miller N., Greco T., Kemp K., Kramer J., Fulton L., Mardis E., Dante M., Pepin K., Hillier L.W., Nelson J., Spieth J., Ryan E., Andrews S., Geisel C., Layman D., Du H., Ali J., Berghoff A., Jones K., Drone K., Cotton M., Joshu C., Antonoiu B., Zidanic M., Strong C., Sun H., Lamar B., Yordan C., Ma P., Zhong J., Preston R., Vil D., Shekher M., Matero A., Shah R., Swaby I.K., O'Shaughnessy A., Rodriguez M., Hoffman J., Till S., Granat S., Shohdy N., Hasegawa A., Hameed A., Lodhi M., Johnson A., Chen E., Marra M.A., Martienssen R., McCombie W.R.
    Nature 402:769-777(1999) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: cv. Columbia.
  3. The Arabidopsis Information Resource (TAIR)
    Submitted (APR-2011) to the EMBL/GenBank/DDBJ databases
    Cited for: GENOME REANNOTATION.
    Strain: cv. Columbia.
  4. "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: GENE FAMILY, NOMENCLATURE.
    Strain: cv. Columbia.
  5. "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.
  6. "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: CHARACTERIZATION OF THE 26S PROTEASOME COMPLEX, SUBUNIT.

Entry informationi

Entry nameiPSA4B_ARATH
AccessioniPrimary (citable) accession number: F4JJE5
Secondary accession number(s): O23370
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 24, 2013
Last sequence update: June 28, 2011
Last modified: February 4, 2015
This is version 28 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Caution

Was not identified as subunit of the 26S proteasome complex (PubMed:20516081). Could be the product of a pseudogene.1 Publication

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. Peptidase families
    Classification of peptidase families and list of entries
  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.