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PSMD4_ARATH
ID   PSMD4_ARATH             Reviewed;         386 AA.
AC   P55034; Q8L9G3;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 163.
DE   RecName: Full=26S proteasome non-ATPase regulatory subunit 4 homolog;
DE   AltName: Full=26S proteasome regulatory subunit RPN10;
DE            Short=AtRPN10;
DE   AltName: Full=26S proteasome regulatory subunit S5A homolog;
DE   AltName: Full=Multiubiquitin chain-binding protein 1;
DE            Short=AtMCB1;
GN   Name=RPN10; Synonyms=MBP1, MCB1; OrderedLocusNames=At4g38630;
GN   ORFNames=F20M13.190, T9A14.7;
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], AND FUNCTION.
RC   STRAIN=cv. Columbia; TISSUE=Seedling;
RX   PubMed=8570648; DOI=10.1073/pnas.93.2.856;
RA   van Nocker S., Deveraux Q., Rechsteiner M., Vierstra R.D.;
RT   "Arabidopsis MBP1 gene encodes a conserved ubiquitin recognition component
RT   of the 26S proteasome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 93:856-860(1996).
RN   [2]
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   [3]
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   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=14593172; DOI=10.1126/science.1088305;
RA   Yamada K., Lim J., Dale J.M., Chen H., Shinn P., Palm C.J., Southwick A.M.,
RA   Wu H.C., Kim C.J., Nguyen M., Pham P.K., Cheuk R.F., Karlin-Newmann G.,
RA   Liu S.X., Lam B., Sakano H., Wu T., Yu G., Miranda M., Quach H.L.,
RA   Tripp M., Chang C.H., Lee J.M., Toriumi M.J., Chan M.M., Tang C.C.,
RA   Onodera C.S., Deng J.M., Akiyama K., Ansari Y., Arakawa T., Banh J.,
RA   Banno F., Bowser L., Brooks S.Y., Carninci P., Chao Q., Choy N., Enju A.,
RA   Goldsmith A.D., Gurjal M., Hansen N.F., Hayashizaki Y., Johnson-Hopson C.,
RA   Hsuan V.W., Iida K., Karnes M., Khan S., Koesema E., Ishida J., Jiang P.X.,
RA   Jones T., Kawai J., Kamiya A., Meyers C., Nakajima M., Narusaka M.,
RA   Seki M., Sakurai T., Satou M., Tamse R., Vaysberg M., Wallender E.K.,
RA   Wong C., Yamamura Y., Yuan S., Shinozaki K., Davis R.W., Theologis A.,
RA   Ecker J.R.;
RT   "Empirical analysis of transcriptional activity in the Arabidopsis
RT   genome.";
RL   Science 302:842-846(2003).
RN   [5]
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   [6]
RP   FUNCTION.
RX   PubMed=8530351; DOI=10.1074/jbc.270.50.29660;
RA   Deveraux Q., van Nocker S., Mahaffey D., Vierstra R.D., Rechsteiner M.;
RT   "Inhibition of ubiquitin-mediated proteolysis by the Arabidopsis 26 S
RT   protease subunit S5a.";
RL   J. Biol. Chem. 270:29660-29663(1995).
RN   [7]
RP   SUBUNIT, AND FUNCTION.
RX   PubMed=9741626; DOI=10.1016/s0092-8674(00)81603-7;
RA   Glickman M.H., Rubin D.M., Coux O., Wefes I., Pfeifer G., Cjeka Z.,
RA   Baumeister W., Fried V.A., Finley D.;
RT   "A subcomplex of the proteasome regulatory particle required for ubiquitin-
RT   conjugate degradation and related to the COP9-signalosome and eIF3.";
RL   Cell 94:615-623(1998).
RN   [8]
RP   POLYUBIQUITIN BINDING, AND FUNCTION.
RX   PubMed=9442033; DOI=10.1074/jbc.273.4.1970;
RA   Fu H., Sadis S., Rubin D.M., Glickman M., van Nocker S., Finley D.,
RA   Vierstra R.D.;
RT   "Multiubiquitin chain binding and protein degradation are mediated by
RT   distinct domains within the 26 S proteasome subunit Mcb1.";
RL   J. Biol. Chem. 273:1970-1981(1998).
RN   [9]
RP   FUNCTION, AND DISRUPTION PHENOTYPE.
RX   PubMed=12671091; DOI=10.1105/tpc.009217;
RA   Smalle J., Kurepa J., Yang P., Emborg T.J., Babiychuk E., Kushnir S.,
RA   Vierstra R.D.;
RT   "The pleiotropic role of the 26S proteasome subunit RPN10 in Arabidopsis
RT   growth and development supports a substrate-specific function in abscisic
RT   acid signaling.";
RL   Plant Cell 15:965-980(2003).
RN   [10]
RP   TISSUE SPECIFICITY.
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   INTERACTION WITH PI4KG4, AND PHOSPHORYLATION BY PI4KG4.
RX   PubMed=17880284; DOI=10.1042/bj20070959;
RA   Galvao R.M., Kota U., Soderblom E.J., Goshe M.B., Boss W.F.;
RT   "Characterization of a new family of protein kinases from Arabidopsis
RT   containing phosphoinositide 3/4-kinase and ubiquitin-like domains.";
RL   Biochem. J. 409:117-127(2008).
RN   [12]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-263, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Root;
RX   PubMed=18433157; DOI=10.1021/pr8000173;
RA   de la Fuente van Bentem S., Anrather D., Dohnal I., Roitinger E.,
RA   Csaszar E., Joore J., Buijnink J., Carreri A., Forzani C., Lorkovic Z.J.,
RA   Barta A., Lecourieux D., Verhounig A., Jonak C., Hirt H.;
RT   "Site-specific phosphorylation profiling of Arabidopsis proteins by mass
RT   spectrometry and peptide chip analysis.";
RL   J. Proteome Res. 7:2458-2470(2008).
RN   [13]
RP   FUNCTION, AND DISRUPTION PHENOTYPE.
RX   PubMed=17971041; DOI=10.1111/j.1365-313x.2007.03322.x;
RA   Kurepa J., Toh-E A., Smalle J.A.;
RT   "26S proteasome regulatory particle mutants have increased oxidative stress
RT   tolerance.";
RL   Plant J. 53:102-114(2008).
RN   [14]
RP   DISRUPTION PHENOTYPE, AND FUNCTION.
RX   PubMed=19321709; DOI=10.1104/pp.109.135970;
RA   Kurepa J., Wang S., Li Y., Zaitlin D., Pierce A.J., Smalle J.A.;
RT   "Loss of 26S proteasome function leads to increased cell size and decreased
RT   cell number in Arabidopsis shoot organs.";
RL   Plant Physiol. 150:178-189(2009).
RN   [15]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=19376835; DOI=10.1104/pp.109.138677;
RA   Reiland S., Messerli G., Baerenfaller K., Gerrits B., Endler A.,
RA   Grossmann J., Gruissem W., Baginsky S.;
RT   "Large-scale Arabidopsis phosphoproteome profiling reveals novel
RT   chloroplast kinase substrates and phosphorylation networks.";
RL   Plant Physiol. 150:889-903(2009).
RN   [16]
RP   FUNCTION, INTERACTION WITH RAD23B; RAD23C; RAD23D AND DSK2A, AND DISRUPTION
RP   PHENOTYPE.
RX   PubMed=20059542; DOI=10.1111/j.1742-4658.2009.07531.x;
RA   Fatimababy A.S., Lin Y.L., Usharani R., Radjacommare R., Wang H.T.,
RA   Tsai H.L., Lee Y., Fu H.;
RT   "Cross-species divergence of the major recognition pathways of
RT   ubiquitylated substrates for ubiquitin/26S proteasome-mediated
RT   proteolysis.";
RL   FEBS J. 277:796-816(2010).
RN   [17]
RP   IDENTIFICATION BY MASS SPECTROMETRY, CHARACTERIZATION OF THE 26S PROTEASOME
RP   COMPLEX, AND SUBUNIT.
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).
RN   [18]
RP   INTERACTION WITH RAD23B, AND POLYUBIQUITIN BINDING.
RX   PubMed=20086187; DOI=10.1105/tpc.109.072660;
RA   Farmer L.M., Book A.J., Lee K.H., Lin Y.L., Fu H., Vierstra R.D.;
RT   "The RAD23 family provides an essential connection between the 26S
RT   proteasome and ubiquitylated proteins in Arabidopsis.";
RL   Plant Cell 22:124-142(2010).
RN   [19]
RP   REVIEW.
RX   PubMed=20399133; DOI=10.1016/j.tplants.2010.03.004;
RA   Fu H., Lin Y.L., Fatimababy A.S.;
RT   "Proteasomal recognition of ubiquitylated substrates.";
RL   Trends Plant Sci. 15:375-386(2010).
RN   [20]
RP   FUNCTION, DISRUPTION PHENOTYPE, POLYUBIQUITIN BINDING, AND INTERACTION WITH
RP   RAD23B; RAD23C; RAD23D AND DSK2B.
RX   PubMed=21764993; DOI=10.1105/tpc.111.086702;
RA   Lin Y.-L., Sung S.-C., Tsai H.-L., Yu T.-T., Radjacommare R., Usharani R.,
RA   Fatimababy A.S., Lin H.-Y., Wang Y.-Y., Fu H.;
RT   "The defective proteasome but not substrate recognition function is
RT   responsible for the null phenotypes of the Arabidopsis proteasome subunit
RT   RPN10.";
RL   Plant Cell 23:2754-2773(2011).
RN   [21]
RP   FUNCTION, AND DISRUPTION PHENOTYPE.
RX   PubMed=22751321; DOI=10.4161/psb.20360;
RA   Lin Y.L., Fu H.;
RT   "In vivo relevance of substrate recognition function of major Arabidopsis
RT   ubiquitin receptors.";
RL   Plant Signal. Behav. 7:722-727(2012).
CC   -!- FUNCTION: Plays a role in maintaining the structural integrity of the
CC       19S regulatory particle (RP), subcomplex of the 26S proteasome. Plays a
CC       major role in both the direct and indirect recognition of ubiquitinated
CC       substrates of ubiquitin/26S proteasome-mediated proteolysis (UPP).
CC       Binds and presumably selects ubiquitin-conjugates for destruction.
CC       Prefers multiubiquitin chains rather than single ubiquitins, with a
CC       binding affinity for 'Lys-48'-linked ubiquitin chains. Acts as a
CC       potential docking subunit for both ubiquitin receptors RAD23s and
CC       DSK2s. Plays a role in the growth and development via the proteasome-
CC       dependent degradation of the ABA-signaling protein ABI5/DPBF1. Plays an
CC       important role for balancing cell expansion with cell proliferation
CC       rates during shoot development. {ECO:0000269|PubMed:12671091,
CC       ECO:0000269|PubMed:17971041, ECO:0000269|PubMed:19321709,
CC       ECO:0000269|PubMed:20059542, ECO:0000269|PubMed:21764993,
CC       ECO:0000269|PubMed:22751321, ECO:0000269|PubMed:8530351,
CC       ECO:0000269|PubMed:8570648, ECO:0000269|PubMed:9442033,
CC       ECO:0000269|PubMed:9741626}.
CC   -!- SUBUNIT: Component of the 19S regulatory particle (RP/PA700) base
CC       subcomplex of the 26S proteasome. The 26S proteasome is composed of a
CC       core protease (CP), known as the 20S proteasome, capped at one or both
CC       ends by the 19S regulatory particle (RP/PA700). The RP/PA700 complex is
CC       composed of at least 17 different subunits in two subcomplexes, the
CC       base and the lid, which form the portions proximal and distal to the
CC       20S proteolytic core, respectively. Interacts with PI4KG4. Interacts
CC       with RAD23s and DSK2s via its UIM3 and UIM1 motif, respectively.
CC       Interacts with 'Lys-48'-linked polyubiquitin chains via its UIM1 motif.
CC       {ECO:0000269|PubMed:17880284, ECO:0000269|PubMed:20059542,
CC       ECO:0000269|PubMed:20086187, ECO:0000269|PubMed:20516081,
CC       ECO:0000269|PubMed:21764993, ECO:0000269|PubMed:9741626}.
CC   -!- INTERACTION:
CC       P55034; Q9SII8: DSK2B; NbExp=2; IntAct=EBI-2620423, EBI-4433040;
CC       P55034; Q9SFT9: T1B9.26; NbExp=3; IntAct=EBI-2620423, EBI-4460083;
CC       P55034; P0CG48: UBC; Xeno; NbExp=2; IntAct=EBI-2620423, EBI-3390054;
CC   -!- TISSUE SPECIFICITY: Ubiquitous with highest expression in flowers.
CC       {ECO:0000269|PubMed:14623884}.
CC   -!- PTM: Phosphorylated by PI4KG4 in vitro. {ECO:0000269|PubMed:17880284}.
CC   -!- DISRUPTION PHENOTYPE: Displays reduced seed germination, growth rate,
CC       stamen number, genetic transmission through the male gamete, hormone-
CC       induced cell division and increased oxidative stress tolerance. Is also
CC       more sensitive to abscisic acid (ABA), salt, sucrose stress, heat shock
CC       and DNA-damaging agents and shows a decreased sensitivity to cytokinin
CC       and auxin. In flowers, epidermal cells in petals were larger than those
CC       in the wild type. {ECO:0000269|PubMed:12671091,
CC       ECO:0000269|PubMed:17971041, ECO:0000269|PubMed:19321709,
CC       ECO:0000269|PubMed:20059542, ECO:0000269|PubMed:21764993,
CC       ECO:0000269|PubMed:22751321}.
CC   -!- SIMILARITY: Belongs to the proteasome subunit S5A family.
CC       {ECO:0000305}.
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DR   EMBL; U33269; AAA85583.1; -; mRNA.
DR   EMBL; AL035540; CAB37519.1; -; Genomic_DNA.
DR   EMBL; AL035656; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AL161593; CAB80527.1; -; Genomic_DNA.
DR   EMBL; CP002687; AEE86956.1; -; Genomic_DNA.
DR   EMBL; AF360319; AAK26029.1; -; mRNA.
DR   EMBL; AY113889; AAM44937.1; -; mRNA.
DR   EMBL; AY088449; AAM65985.1; -; mRNA.
DR   PIR; T05691; T05691.
DR   RefSeq; NP_195575.1; NM_120024.3.
DR   AlphaFoldDB; P55034; -.
DR   SMR; P55034; -.
DR   BioGRID; 15299; 47.
DR   IntAct; P55034; 11.
DR   MINT; P55034; -.
DR   STRING; 3702.AT4G38630.1; -.
DR   iPTMnet; P55034; -.
DR   PaxDb; P55034; -.
DR   PRIDE; P55034; -.
DR   ProteomicsDB; 224827; -.
DR   EnsemblPlants; AT4G38630.1; AT4G38630.1; AT4G38630.
DR   GeneID; 830019; -.
DR   Gramene; AT4G38630.1; AT4G38630.1; AT4G38630.
DR   KEGG; ath:AT4G38630; -.
DR   Araport; AT4G38630; -.
DR   TAIR; locus:2121269; AT4G38630.
DR   eggNOG; KOG2884; Eukaryota.
DR   HOGENOM; CLU_033293_0_0_1; -.
DR   InParanoid; P55034; -.
DR   OMA; MTDQANV; -.
DR   OrthoDB; 1244685at2759; -.
DR   PhylomeDB; P55034; -.
DR   PRO; PR:P55034; -.
DR   Proteomes; UP000006548; Chromosome 4.
DR   ExpressionAtlas; P55034; baseline and differential.
DR   Genevisible; P55034; AT.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0005634; C:nucleus; IBA:GO_Central.
DR   GO; GO:0005886; C:plasma membrane; HDA:TAIR.
DR   GO; GO:0000502; C:proteasome complex; IDA:TAIR.
DR   GO; GO:0008540; C:proteasome regulatory particle, base subcomplex; IBA:GO_Central.
DR   GO; GO:0001653; F:peptide receptor activity; IDA:TAIR.
DR   GO; GO:0031593; F:polyubiquitin modification-dependent protein binding; IDA:UniProtKB.
DR   GO; GO:0006974; P:cellular response to DNA damage stimulus; IMP:TAIR.
DR   GO; GO:0048366; P:leaf development; IMP:TAIR.
DR   GO; GO:0010150; P:leaf senescence; IMP:TAIR.
DR   GO; GO:0009555; P:pollen development; IMP:TAIR.
DR   GO; GO:0048528; P:post-embryonic root development; IMP:TAIR.
DR   GO; GO:0043248; P:proteasome assembly; IMP:TAIR.
DR   GO; GO:0043161; P:proteasome-mediated ubiquitin-dependent protein catabolic process; IMP:TAIR.
DR   GO; GO:0030163; P:protein catabolic process; TAS:TAIR.
DR   GO; GO:0010029; P:regulation of seed germination; IMP:TAIR.
DR   GO; GO:0009737; P:response to abscisic acid; IMP:TAIR.
DR   GO; GO:0009733; P:response to auxin; IMP:TAIR.
DR   GO; GO:0009735; P:response to cytokinin; IMP:TAIR.
DR   GO; GO:0009408; P:response to heat; IMP:TAIR.
DR   GO; GO:0051788; P:response to misfolded protein; IMP:TAIR.
DR   GO; GO:0009651; P:response to salt stress; IMP:TAIR.
DR   GO; GO:0009744; P:response to sucrose; IMP:TAIR.
DR   GO; GO:0048767; P:root hair elongation; IMP:TAIR.
DR   GO; GO:0048455; P:stamen formation; IMP:TAIR.
DR   Gene3D; 3.40.50.410; -; 1.
DR   InterPro; IPR003903; UIM_dom.
DR   InterPro; IPR002035; VWF_A.
DR   InterPro; IPR036465; vWFA_dom_sf.
DR   Pfam; PF02809; UIM; 2.
DR   Pfam; PF13519; VWA_2; 1.
DR   SMART; SM00726; UIM; 3.
DR   SMART; SM00327; VWA; 1.
DR   SUPFAM; SSF53300; SSF53300; 1.
DR   PROSITE; PS50330; UIM; 3.
DR   PROSITE; PS50234; VWFA; 1.
PE   1: Evidence at protein level;
KW   Phosphoprotein; Proteasome; Reference proteome; Repeat.
FT   CHAIN           1..386
FT                   /note="26S proteasome non-ATPase regulatory subunit 4
FT                   homolog"
FT                   /id="PRO_0000173832"
FT   DOMAIN          5..190
FT                   /note="VWFA"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00219"
FT   DOMAIN          221..240
FT                   /note="UIM 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00213"
FT   DOMAIN          282..301
FT                   /note="UIM 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00213"
FT   DOMAIN          305..324
FT                   /note="UIM 3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00213"
FT   REGION          241..281
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          344..386
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        241..262
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        363..386
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         263
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:18433157"
FT   CONFLICT        253
FT                   /note="G -> C (in Ref. 5; AAM65985)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        371
FT                   /note="T -> H (in Ref. 5; AAM65985)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   386 AA;  40757 MW;  2F5C89D9FACB4550 CRC64;
     MVLEATMICI DNSEWMRNGD YSPSRLQAQT EAVNLLCGAK TQSNPENTVG ILTMAGKGVR
     VLTTPTSDLG KILACMHGLD VGGEINLTAA IQIAQLALKH RQNKNQRQRI IVFAGSPIKY
     EKKALEIVGK RLKKNSVSLD IVNFGEDDDE EKPQKLEALL TAVNNNDGSH IVHVPSGANA
     LSDVLLSTPV FTGDEGASGY VSAAAAAAAA GGDFDFGVDP NIDPELALAL RVSMEEERAR
     QEAAAKKAAD EAGQKDKDGD TASASQETVA RTTDKNAEPM DEDSALLDQA IAMSVGDVNM
     SEAADEDQDL ALALQMSMSG EESSEATGAG NNLLGNQAFI SSVLSSLPGV DPNDPAVKEL
     LASLPDESKR TEEEESSSKK GEDEKK
 
 
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