ID   SEOB_ARATH              Reviewed;         740 AA.
AC   Q9SS87;
DT   29-APR-2015, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 114.
DE   RecName: Full=Protein SIEVE ELEMENT OCCLUSION B {ECO:0000303|PubMed:20932300};
DE            Short=AtSEOb {ECO:0000303|PubMed:20932300};
DE   AltName: Full=Protein SIEVE ELEMENT OCCLUSION-RELATED 1 {ECO:0000303|PubMed:22470058};
DE            Short=AtSEOR1 {ECO:0000303|PubMed:22470058};
GN   Name=SEOB {ECO:0000303|PubMed:20932300};
GN   Synonyms=SEOR1 {ECO:0000303|PubMed:22470058};
GN   OrderedLocusNames=At3g01680 {ECO:0000312|Araport:AT3G01680};
GN   ORFNames=F4P13.22 {ECO:0000312|EMBL:AAF01551.1};
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], GENE FAMILY, AND NOMENCLATURE.
RX   PubMed=20932300; DOI=10.1186/1471-2229-10-219;
RA   Ruping B., Ernst A.M., Jekat S.B., Nordzieke S., Reineke A.R., Muller B.,
RA   Bornberg-Bauer E., Prufer D., Noll G.A.;
RT   "Molecular and phylogenetic characterization of the sieve element occlusion
RT   gene family in Fabaceae and non-Fabaceae plants.";
RL   BMC Plant Biol. 10:219-219(2010).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Columbia;
RX   PubMed=11130713; DOI=10.1038/35048706;
RA   Salanoubat M., Lemcke K., Rieger M., Ansorge W., Unseld M., Fartmann B.,
RA   Valle G., Bloecker H., Perez-Alonso M., Obermaier B., Delseny M.,
RA   Boutry M., Grivell L.A., Mache R., Puigdomenech P., De Simone V.,
RA   Choisne N., Artiguenave F., Robert C., Brottier P., Wincker P.,
RA   Cattolico L., Weissenbach J., Saurin W., Quetier F., Schaefer M.,
RA   Mueller-Auer S., Gabel C., Fuchs M., Benes V., Wurmbach E., Drzonek H.,
RA   Erfle H., Jordan N., Bangert S., Wiedelmann R., Kranz H., Voss H.,
RA   Holland R., Brandt P., Nyakatura G., Vezzi A., D'Angelo M., Pallavicini A.,
RA   Toppo S., Simionati B., Conrad A., Hornischer K., Kauer G., Loehnert T.-H.,
RA   Nordsiek G., Reichelt J., Scharfe M., Schoen O., Bargues M., Terol J.,
RA   Climent J., Navarro P., Collado C., Perez-Perez A., Ottenwaelder B.,
RA   Duchemin D., Cooke R., Laudie M., Berger-Llauro C., Purnelle B., Masuy D.,
RA   de Haan M., Maarse A.C., Alcaraz J.-P., Cottet A., Casacuberta E.,
RA   Monfort A., Argiriou A., Flores M., Liguori R., Vitale D., Mannhaupt G.,
RA   Haase D., Schoof H., Rudd S., Zaccaria P., Mewes H.-W., Mayer K.F.X.,
RA   Kaul S., Town C.D., Koo H.L., Tallon L.J., Jenkins J., Rooney T., Rizzo M.,
RA   Walts A., Utterback T., Fujii C.Y., Shea T.P., Creasy T.H., Haas B.,
RA   Maiti R., Wu D., Peterson J., Van Aken S., Pai G., Militscher J.,
RA   Sellers P., Gill J.E., Feldblyum T.V., Preuss D., Lin X., Nierman W.C.,
RA   Salzberg S.L., White O., Venter J.C., Fraser C.M., Kaneko T., Nakamura Y.,
RA   Sato S., Kato T., Asamizu E., Sasamoto S., Kimura T., Idesawa K.,
RA   Kawashima K., Kishida Y., Kiyokawa C., Kohara M., Matsumoto M., Matsuno A.,
RA   Muraki A., Nakayama S., Nakazaki N., Shinpo S., Takeuchi C., Wada T.,
RA   Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence and analysis of chromosome 3 of the plant Arabidopsis thaliana.";
RL   Nature 408:820-822(2000).
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].
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   [6]
RP   TISSUE SPECIFICITY.
RX   PubMed=22198148; DOI=10.1105/tpc.111.093179;
RA   Froelich D.R., Mullendore D.L., Jensen K.H., Ross-Elliott T.J.,
RA   Anstead J.A., Thompson G.A., Pelissier H.C., Knoblauch M.;
RT   "Phloem ultrastructure and pressure flow: Sieve-Element-Occlusion-Related
RT   agglomerations do not affect translocation.";
RL   Plant Cell 23:4428-4445(2011).
RN   [7]
RP   IDENTIFICATION BY MASS SPECTROMETRY, FUNCTION, SUBUNIT, AND DISRUPTION
RP   PHENOTYPE.
RX   PubMed=22470058; DOI=10.1093/pcp/pcs046;
RA   Anstead J.A., Froelich D.R., Knoblauch M., Thompson G.A.;
RT   "Arabidopsis P-protein filament formation requires both AtSEOR1 and
RT   AtSEOR2.";
RL   Plant Cell Physiol. 53:1033-1042(2012).
CC   -!- FUNCTION: Scaffold protein required to form the phloem filament matrix
CC       in sieve elements. {ECO:0000269|PubMed:22470058}.
CC   -!- SUBUNIT: Can form homodimer. {ECO:0000269|PubMed:22470058}.
CC   -!- TISSUE SPECIFICITY: Expressed in phloem sieve elements.
CC       {ECO:0000269|PubMed:22198148}.
CC   -!- DISRUPTION PHENOTYPE: No visible phenotype under normal growth
CC       conditions. {ECO:0000269|PubMed:22470058}.
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DR   EMBL; HM162886; ADN32814.1; -; mRNA.
DR   EMBL; AC009325; AAF01551.1; -; Genomic_DNA.
DR   EMBL; CP002686; AEE73702.1; -; Genomic_DNA.
DR   EMBL; BT008325; AAP37684.1; -; mRNA.
DR   EMBL; AK228096; BAF00055.1; -; mRNA.
DR   RefSeq; NP_186817.1; NM_111034.3.
DR   AlphaFoldDB; Q9SS87; -.
DR   STRING; 3702.AT3G01680.1; -.
DR   iPTMnet; Q9SS87; -.
DR   PaxDb; Q9SS87; -.
DR   PRIDE; Q9SS87; -.
DR   ProteomicsDB; 232673; -.
DR   EnsemblPlants; AT3G01680.1; AT3G01680.1; AT3G01680.
DR   GeneID; 821097; -.
DR   Gramene; AT3G01680.1; AT3G01680.1; AT3G01680.
DR   KEGG; ath:AT3G01680; -.
DR   Araport; AT3G01680; -.
DR   TAIR; locus:2084158; AT3G01680.
DR   eggNOG; ENOG502QRW8; Eukaryota.
DR   HOGENOM; CLU_025476_0_0_1; -.
DR   InParanoid; Q9SS87; -.
DR   OMA; PHTDNMK; -.
DR   OrthoDB; 199697at2759; -.
DR   PhylomeDB; Q9SS87; -.
DR   PRO; PR:Q9SS87; -.
DR   Proteomes; UP000006548; Chromosome 3.
DR   ExpressionAtlas; Q9SS87; baseline and differential.
DR   Genevisible; Q9SS87; AT.
DR   GO; GO:0042803; F:protein homodimerization activity; IPI:UniProtKB.
DR   GO; GO:0043621; F:protein self-association; IPI:TAIR.
DR   GO; GO:0010088; P:phloem development; IMP:UniProtKB.
DR   InterPro; IPR027944; SEO_C.
DR   InterPro; IPR027942; SEO_N.
DR   InterPro; IPR039299; SEOA.
DR   PANTHER; PTHR33232; PTHR33232; 1.
DR   Pfam; PF14577; SEO_C; 1.
DR   Pfam; PF14576; SEO_N; 1.
PE   1: Evidence at protein level;
KW   Reference proteome.
FT   CHAIN           1..740
FT                   /note="Protein SIEVE ELEMENT OCCLUSION B"
FT                   /id="PRO_0000432874"
FT   REGION          1..27
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..26
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   740 AA;  85270 MW;  D09C08130DC9EAED CRC64;
     MESLIKSQHA QQLAGHKNTT GKTPSMEMIP ATGLAMSSDE SMMLKLIQQT HSPDAREVQV
     RGLLSLVEDI LDRATLDSED TNASMLPLPT EDKLMQSSMM SVLDSVSYAI DRVACEIAYK
     SLTGSDSHEI TMSVFEHLSS FQWDGKLVLT LAAFALNYGE FWLLVQFYSK NQLAKSLAML
     KLVPVQNRVT LESVSQGLND LIREMKSVTA CVVELSELPD RYITPDVPQL SRILSTIPIA
     VYWTIRSVIA CISQINMITA MGHEMMNTQM DLWETSMLAN KLKNIHDHLA ETLRLCYRHI
     EKQRSSESLK VLHSLFDTTH IDNMKILTAL VHPKPHITPL QDGLTKRKVH LDVLRRKTVL
     LLISDLNILQ DELSIFEQIY TESRRNLVGV DGKSHMPYEV VWVPVVDPIE DFERSPILQK
     KFEDLRDPMP WYSVDSPKLI ERHVVEFMRG RWHFMNKPIL VVIDPQGNEA SLNALHMIWI
     WGTEAFPFTR SREEELWRRE TFSLNLIVDG IDSVIFNWIK PDNYIFLYGG DDLDWIRRFT
     MAAKATAKDS NVNLEMAYVG KRNHSHREQI RRISEVIRSE NLSHSWAEPA LMWFFWTRLE
     SMLYSKIQLG KADDHDDVMQ GIKKILSYDK LGGWALLSKG PEIVMIAHGA IERTMSVYDR
     TWKTHVPTKG YTKAMSDHHH DEVLRETGKP CGHFDFHITA RSGRIPEKMN CFECQRPMEK
     YMSFSCCHDE KLHEDENYNF