ID   PSB2B_ARATH             Reviewed;         199 AA.
AC   O24633; Q2HIJ3;
DT   18-OCT-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   27-MAR-2024, entry version 172.
DE   RecName: Full=Proteasome subunit beta type-2-B;
DE   AltName: Full=20S proteasome beta subunit D-2;
DE   AltName: Full=Proteasome component GA;
DE   AltName: Full=Proteasome subunit beta type-4;
GN   Name=PBD2; Synonyms=PRCGA; OrderedLocusNames=At4g14800;
GN   ORFNames=dl3440w, FCAALL.135;
OS   Arabidopsis thaliana (Mouse-ear cress).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis.
OX   NCBI_TaxID=3702;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=9373170; DOI=10.1016/s0014-5793(97)01228-3;
RA   Parmentier Y., Bouchez D., Fleck J., Genschik P.;
RT   "The 20S proteasome gene family in Arabidopsis thaliana.";
RL   FEBS Lett. 416:281-285(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY, GENE FAMILY, AND
RP   NOMENCLATURE.
RC   STRAIN=cv. Columbia;
RX   PubMed=9611183; DOI=10.1093/genetics/149.2.677;
RA   Fu H., Doelling J.H., Arendt C.S., Hochstrasser M., Vierstra R.D.;
RT   "Molecular organization of the 20S proteasome gene family from Arabidopsis
RT   thaliana.";
RL   Genetics 149:677-692(1998).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=9461215; DOI=10.1038/35140;
RA   Bevan M., Bancroft I., Bent E., Love K., Goodman H.M., Dean C.,
RA   Bergkamp R., Dirkse W., van Staveren M., Stiekema W., Drost L., Ridley P.,
RA   Hudson S.-A., Patel K., Murphy G., Piffanelli P., Wedler H., Wedler E.,
RA   Wambutt R., Weitzenegger T., Pohl T., Terryn N., Gielen J., Villarroel R.,
RA   De Clercq R., van Montagu M., Lecharny A., Aubourg S., Gy I., Kreis M.,
RA   Lao N., Kavanagh T., Hempel S., Kotter P., Entian K.-D., Rieger M.,
RA   Schaefer M., Funk B., Mueller-Auer S., Silvey M., James R., Monfort A.,
RA   Pons A., Puigdomenech P., Douka A., Voukelatou E., Milioni D.,
RA   Hatzopoulos P., Piravandi E., Obermaier B., Hilbert H., Duesterhoeft A.,
RA   Moores T., Jones J.D.G., Eneva T., Palme K., Benes V., Rechmann S.,
RA   Ansorge W., Cooke R., Berger C., Delseny M., Voet M., Volckaert G.,
RA   Mewes H.-W., Klosterman S., Schueller C., Chalwatzis N.;
RT   "Analysis of 1.9 Mb of contiguous sequence from chromosome 4 of Arabidopsis
RT   thaliana.";
RL   Nature 391:485-488(1998).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=10617198; DOI=10.1038/47134;
RA   Mayer K.F.X., Schueller C., Wambutt R., Murphy G., Volckaert G., Pohl T.,
RA   Duesterhoeft A., Stiekema W., Entian K.-D., Terryn N., Harris B.,
RA   Ansorge W., Brandt P., Grivell L.A., Rieger M., Weichselgartner M.,
RA   de Simone V., Obermaier B., Mache R., Mueller M., Kreis M., Delseny M.,
RA   Puigdomenech P., Watson M., Schmidtheini T., Reichert B., Portetelle D.,
RA   Perez-Alonso M., Boutry M., Bancroft I., Vos P., Hoheisel J.,
RA   Zimmermann W., Wedler H., Ridley P., Langham S.-A., McCullagh B.,
RA   Bilham L., Robben J., van der Schueren J., Grymonprez B., Chuang Y.-J.,
RA   Vandenbussche F., Braeken M., Weltjens I., Voet M., Bastiaens I., Aert R.,
RA   Defoor E., Weitzenegger T., Bothe G., Ramsperger U., Hilbert H., Braun M.,
RA   Holzer E., Brandt A., Peters S., van Staveren M., Dirkse W., Mooijman P.,
RA   Klein Lankhorst R., Rose M., Hauf J., Koetter P., Berneiser S., Hempel S.,
RA   Feldpausch M., Lamberth S., Van den Daele H., De Keyser A., Buysshaert C.,
RA   Gielen J., Villarroel R., De Clercq R., van Montagu M., Rogers J.,
RA   Cronin A., Quail M.A., Bray-Allen S., Clark L., Doggett J., Hall S.,
RA   Kay M., Lennard N., McLay K., Mayes R., Pettett A., Rajandream M.A.,
RA   Lyne M., Benes V., Rechmann S., Borkova D., Bloecker H., Scharfe M.,
RA   Grimm M., Loehnert T.-H., Dose S., de Haan M., Maarse A.C., Schaefer M.,
RA   Mueller-Auer S., Gabel C., Fuchs M., Fartmann B., Granderath K., Dauner D.,
RA   Herzl A., Neumann S., Argiriou A., Vitale D., Liguori R., Piravandi E.,
RA   Massenet O., Quigley F., Clabauld G., Muendlein A., Felber R., Schnabl S.,
RA   Hiller R., Schmidt W., Lecharny A., Aubourg S., Chefdor F., Cooke R.,
RA   Berger C., Monfort A., Casacuberta E., Gibbons T., Weber N., Vandenbol M.,
RA   Bargues M., Terol J., Torres A., Perez-Perez A., Purnelle B., Bent E.,
RA   Johnson S., Tacon D., Jesse T., Heijnen L., Schwarz S., Scholler P.,
RA   Heber S., Francs P., Bielke C., Frishman D., Haase D., Lemcke K.,
RA   Mewes H.-W., Stocker S., Zaccaria P., Bevan M., Wilson R.K.,
RA   de la Bastide M., Habermann K., Parnell L., Dedhia N., Gnoj L., Schutz K.,
RA   Huang E., Spiegel L., Sekhon M., Murray J., Sheet P., Cordes M.,
RA   Abu-Threideh J., Stoneking T., Kalicki J., Graves T., Harmon G.,
RA   Edwards J., Latreille P., Courtney L., Cloud J., Abbott A., Scott K.,
RA   Johnson D., Minx P., Bentley D., Fulton B., Miller N., Greco T., Kemp K.,
RA   Kramer J., Fulton L., Mardis E., Dante M., Pepin K., Hillier L.W.,
RA   Nelson J., Spieth J., Ryan E., Andrews S., Geisel C., Layman D., Du H.,
RA   Ali J., Berghoff A., Jones K., Drone K., Cotton M., Joshu C., Antonoiu B.,
RA   Zidanic M., Strong C., Sun H., Lamar B., Yordan C., Ma P., Zhong J.,
RA   Preston R., Vil D., Shekher M., Matero A., Shah R., Swaby I.K.,
RA   O'Shaughnessy A., Rodriguez M., Hoffman J., Till S., Granat S., Shohdy N.,
RA   Hasegawa A., Hameed A., Lodhi M., Johnson A., Chen E., Marra M.A.,
RA   Martienssen R., McCombie W.R.;
RT   "Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.";
RL   Nature 402:769-777(1999).
RN   [5]
RP   GENOME REANNOTATION.
RC   STRAIN=cv. Columbia;
RX   PubMed=27862469; DOI=10.1111/tpj.13415;
RA   Cheng C.Y., Krishnakumar V., Chan A.P., Thibaud-Nissen F., Schobel S.,
RA   Town C.D.;
RT   "Araport11: a complete reannotation of the Arabidopsis thaliana reference
RT   genome.";
RL   Plant J. 89:789-804(2017).
RN   [6]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=cv. Columbia;
RA   Shinn P., Chen H., Kim C.J., Ecker J.R.;
RT   "Arabidopsis ORF clones.";
RL   Submitted (FEB-2006) to the EMBL/GenBank/DDBJ databases.
RN   [7]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=cv. Columbia;
RA   Totoki Y., Seki M., Ishida J., Nakajima M., Enju A., Kamiya A.,
RA   Narusaka M., Shin-i T., Nakagawa M., Sakamoto N., Oishi K., Kohara Y.,
RA   Kobayashi M., Toyoda A., Sakaki Y., Sakurai T., Iida K., Akiyama K.,
RA   Satou M., Toyoda T., Konagaya A., Carninci P., Kawai J., Hayashizaki Y.,
RA   Shinozaki K.;
RT   "Large-scale analysis of RIKEN Arabidopsis full-length (RAFL) cDNAs.";
RL   Submitted (JUL-2006) to the EMBL/GenBank/DDBJ databases.
RN   [8]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RA   Brover V.V., Troukhan M.E., Alexandrov N.A., Lu Y.-P., Flavell R.B.,
RA   Feldmann K.A.;
RT   "Full-length cDNA from Arabidopsis thaliana.";
RL   Submitted (MAR-2002) to the EMBL/GenBank/DDBJ databases.
RN   [9]
RP   SUBUNIT.
RX   PubMed=10363660; DOI=10.1023/a:1006926322501;
RA   Fu H., Girod P.-A., Doelling J.H., van Nocker S., Hochstrasser M.,
RA   Finley D., Vierstra R.D.;
RT   "Structure and functional analyses of the 26S proteasome subunits from
RT   plants.";
RL   Mol. Biol. Rep. 26:137-146(1999).
RN   [10]
RP   SUBUNIT, AND IDENTIFICATION BY MASS SPECTROMETRY.
RX   PubMed=14623884; DOI=10.1074/jbc.m311977200;
RA   Yang P., Fu H., Walker J., Papa C.M., Smalle J., Ju Y.-M., Vierstra R.D.;
RT   "Purification of the Arabidopsis 26 S proteasome: biochemical and molecular
RT   analyses revealed the presence of multiple isoforms.";
RL   J. Biol. Chem. 279:6401-6413(2004).
RN   [11]
RP   IDENTIFICATION BY MASS SPECTROMETRY, CHARACTERIZATION OF THE 26S PROTEASOME
RP   COMPLEX, SUBUNIT, AND ACETYLATION AT MET-1.
RX   PubMed=20516081; DOI=10.1074/jbc.m110.136622;
RA   Book A.J., Gladman N.P., Lee S.S., Scalf M., Smith L.M., Vierstra R.D.;
RT   "Affinity purification of the Arabidopsis 26 S proteasome reveals a diverse
RT   array of plant proteolytic complexes.";
RL   J. Biol. Chem. 285:25554-25569(2010).
CC   -!- FUNCTION: Non-catalytic component of the proteasome, a multicatalytic
CC       proteinase complex which is characterized by its ability to cleave
CC       peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group
CC       at neutral or slightly basic pH. The proteasome has an ATP-dependent
CC       proteolytic activity.
CC   -!- SUBUNIT: Component of the 20S core complex of the 26S proteasome. The
CC       26S proteasome is composed of a core protease (CP), known as the 20S
CC       proteasome, capped at one or both ends by the 19S regulatory particle
CC       (RP/PA700). The 20S proteasome core is composed of 28 subunits that are
CC       arranged in four stacked rings, resulting in a barrel-shaped structure.
CC       The two end rings are each formed by seven alpha subunits, and the two
CC       central rings are each formed by seven beta subunits. The catalytic
CC       chamber with the active sites is on the inside of the barrel.
CC       {ECO:0000269|PubMed:10363660, ECO:0000269|PubMed:14623884,
CC       ECO:0000269|PubMed:20516081}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|PROSITE-ProRule:PRU00809}.
CC       Nucleus {ECO:0000250}.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=1;
CC         Comment=A number of isoforms are produced. According to EST
CC         sequences.;
CC       Name=1;
CC         IsoId=O24633-1; Sequence=Displayed;
CC   -!- TISSUE SPECIFICITY: Ubiquitous low levels, higher expression in
CC       siliques and flowers. {ECO:0000269|PubMed:9611183}.
CC   -!- SIMILARITY: Belongs to the peptidase T1B family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00809}.
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DR   EMBL; Y13175; CAA73618.1; -; mRNA.
DR   EMBL; AF043535; AAC32071.1; -; mRNA.
DR   EMBL; Z97337; CAB10259.1; -; Genomic_DNA.
DR   EMBL; AL161540; CAB78522.1; -; Genomic_DNA.
DR   EMBL; CP002687; AEE83500.1; -; Genomic_DNA.
DR   EMBL; BT024588; ABD42986.1; -; mRNA.
DR   EMBL; AK227835; BAE99813.1; -; mRNA.
DR   EMBL; AY086350; AAM64418.1; -; mRNA.
DR   PIR; A71411; A71411.
DR   RefSeq; NP_193216.1; NM_117565.4. [O24633-1]
DR   AlphaFoldDB; O24633; -.
DR   SMR; O24633; -.
DR   BioGRID; 12432; 53.
DR   IntAct; O24633; 1.
DR   STRING; 3702.O24633; -.
DR   MEROPS; T01.984; -.
DR   iPTMnet; O24633; -.
DR   PaxDb; 3702-AT4G14800-2; -.
DR   ProteomicsDB; 234943; -. [O24633-1]
DR   EnsemblPlants; AT4G14800.1; AT4G14800.1; AT4G14800. [O24633-1]
DR   GeneID; 827135; -.
DR   Gramene; AT4G14800.1; AT4G14800.1; AT4G14800. [O24633-1]
DR   KEGG; ath:AT4G14800; -.
DR   Araport; AT4G14800; -.
DR   TAIR; AT4G14800; PBD2.
DR   eggNOG; KOG0177; Eukaryota.
DR   HOGENOM; CLU_035750_12_1_1; -.
DR   InParanoid; O24633; -.
DR   OMA; RGPTVLK; -.
DR   PhylomeDB; O24633; -.
DR   PRO; PR:O24633; -.
DR   Proteomes; UP000006548; Chromosome 4.
DR   ExpressionAtlas; O24633; baseline and differential.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005634; C:nucleus; IBA:GO_Central.
DR   GO; GO:0019774; C:proteasome core complex, beta-subunit complex; ISS:UniProtKB.
DR   GO; GO:0010498; P:proteasomal protein catabolic process; IBA:GO_Central.
DR   CDD; cd03758; proteasome_beta_type_2; 1.
DR   Gene3D; 3.60.20.10; Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1; 1.
DR   InterPro; IPR029055; Ntn_hydrolases_N.
DR   InterPro; IPR035206; Proteasome_beta2.
DR   InterPro; IPR016050; Proteasome_bsu_CS.
DR   InterPro; IPR001353; Proteasome_sua/b.
DR   InterPro; IPR023333; Proteasome_suB-type.
DR   PANTHER; PTHR11599; PROTEASOME SUBUNIT ALPHA/BETA; 1.
DR   PANTHER; PTHR11599:SF6; PROTEASOME SUBUNIT BETA TYPE-2; 1.
DR   Pfam; PF00227; Proteasome; 1.
DR   SUPFAM; SSF56235; N-terminal nucleophile aminohydrolases (Ntn hydrolases); 1.
DR   PROSITE; PS00854; PROTEASOME_BETA_1; 1.
DR   PROSITE; PS51476; PROTEASOME_BETA_2; 1.
DR   Genevisible; O24633; AT.
PE   1: Evidence at protein level;
KW   Acetylation; Alternative splicing; Cytoplasm; Nucleus; Proteasome;
KW   Reference proteome.
FT   CHAIN           1..199
FT                   /note="Proteasome subunit beta type-2-B"
FT                   /id="PRO_0000148050"
FT   MOD_RES         1
FT                   /note="N-acetylmethionine"
FT                   /evidence="ECO:0000269|PubMed:20516081"
SQ   SEQUENCE   199 AA;  21984 MW;  26C43A69FABC3D3C CRC64;
     MECVFGLVGN GFAIVAADTS AVHSILLHKN KEDKIMTLDS HKLVAASGEP GDRVQFTEYV
     QKNVSLYQFR NGIPLSTAAA ANFTRGELAT ALRKNPYSVN ILMAGYDKEA GASLYYIDYI
     ATLHKVDKGA FGYGSYFSLS TMDRHYRSDM SVEEAIELVD KCILEIRSRL VIAPPNFVIK
     IVDKDGAREY GWRISTADA
//