ID   CASP3_RICCO             Reviewed;         215 AA.
AC   B9SCX0;
DT   26-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 38.
DE   RecName: Full=Casparian strip membrane protein 3;
DE            Short=RcCASP3;
GN   ORFNames=RCOM_1282030;
OS   Ricinus communis (Castor bean).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Malpighiales; Euphorbiaceae; Acalyphoideae; Acalypheae;
OC   Ricinus.
OX   NCBI_TaxID=3988;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Hale;
RX   PubMed=20729833; DOI=10.1038/nbt.1674;
RA   Chan A.P., Crabtree J., Zhao Q., Lorenzi H., Orvis J., Puiu D.,
RA   Melake-Berhan A., Jones K.M., Redman J., Chen G., Cahoon E.B., Gedil M.,
RA   Stanke M., Haas B.J., Wortman J.R., Fraser-Liggett C.M., Ravel J.,
RA   Rabinowicz P.D.;
RT   "Draft genome sequence of the oilseed species Ricinus communis.";
RL   Nat. Biotechnol. 28:951-956(2010).
RN   [2]
RP   GENE FAMILY, AND NOMENCLATURE.
RX   PubMed=24920445; DOI=10.1104/pp.114.239137;
RA   Roppolo D., Boeckmann B., Pfister A., Boutet E., Rubio M.C.,
RA   Denervaud-Tendon V., Vermeer J.E., Gheyselinck J., Xenarios I., Geldner N.;
RT   "Functional and evolutionary analysis of the CASPARIAN STRIP MEMBRANE
RT   DOMAIN PROTEIN family.";
RL   Plant Physiol. 165:1709-1722(2014).
CC   -!- FUNCTION: Regulates membrane-cell wall junctions and localized cell
CC       wall deposition. Required for establishment of the Casparian strip
CC       membrane domain (CSD) and the subsequent formation of Casparian strips,
CC       a cell wall modification of the root endodermis that determines an
CC       apoplastic barrier between the intraorganismal apoplasm and the
CC       extraorganismal apoplasm and prevents lateral diffusion (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBUNIT: Homodimer and heterodimers. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC       protein {ECO:0000250}. Note=Very restricted localization following a
CC       belt shape within the plasma membrane which coincides with the position
CC       of the Casparian strip membrane domain in the root endodermis.
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the Casparian strip membrane proteins (CASP)
CC       family. {ECO:0000305}.
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DR   EMBL; EQ973924; EEF38565.1; -; Genomic_DNA.
DR   RefSeq; XP_002523839.1; XM_002523793.2.
DR   AlphaFoldDB; B9SCX0; -.
DR   STRING; 3988.XP_002523839.1; -.
DR   GeneID; 8263304; -.
DR   KEGG; rcu:8263304; -.
DR   eggNOG; ENOG502RXQU; Eukaryota.
DR   InParanoid; B9SCX0; -.
DR   OrthoDB; 1230007at2759; -.
DR   Proteomes; UP000008311; Unassembled WGS sequence.
DR   GO; GO:0048226; C:Casparian strip; IBA:GO_Central.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IBA:GO_Central.
DR   GO; GO:0042545; P:cell wall modification; IBA:GO_Central.
DR   GO; GO:0007043; P:cell-cell junction assembly; IBA:GO_Central.
DR   InterPro; IPR006459; CASP/CASPL.
DR   InterPro; IPR006702; CASP_dom.
DR   Pfam; PF04535; DUF588; 1.
DR   TIGRFAMs; TIGR01569; A_tha_TIGR01569; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cell wall biogenesis/degradation; Membrane;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..215
FT                   /note="Casparian strip membrane protein 3"
FT                   /id="PRO_0000376098"
FT   TOPO_DOM        1..55
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        56..76
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        77..101
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        102..122
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        123..136
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        137..157
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        158..189
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        190..210
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        211..215
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   REGION          1..26
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..17
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   215 AA;  23037 MW;  8E67E233035E0D68 CRC64;
     MDSEKTGEAK ITIQEPKAAD PKGKGIADAP PPPVVVTTAK AIQKLPRGGW KKGVAIFDFV
     VRLCAIATGL AATGIMGTTE QTLPFFTQFF QFHAEYNDLP TFMFFVFANG IASGYLILSL
     PFSIVCIVRP LAIVPRLLLI IFDTVVMALT IAAASAAAAI VYLAHNGNSN ANWNAICQQF
     NDFCQQTSTA VVASFITAAM LTFLIVLSAF ALKRN