ID   CASP4_RAPSA             Reviewed;         205 AA.
AC   P0DI48;
DT   13-JUN-2012, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2012, sequence version 1.
DT   25-MAY-2022, entry version 20.
DE   RecName: Full=Casparian strip membrane protein 4;
DE            Short=RsCASP4;
OS   Raphanus sativus (Radish) (Raphanus raphanistrum var. sativus).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Brassiceae; Raphanus.
OX   NCBI_TaxID=3726;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=cv. Arena; TISSUE=Seedling;
RA   Conner J.K., Shiu S.H., Xiao Y.;
RT   "Comparative cDNA sequencing in radish (Raphanus), a crop, weed, and model
RT   system in ecology and evolution.";
RL   Submitted (JAN-2008) to the EMBL/GenBank/DDBJ databases.
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; FD561484; -; NOT_ANNOTATED_CDS; mRNA.
DR   AlphaFoldDB; P0DI48; -.
DR   Proteomes; UP000504610; Unplaced.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR   InterPro; IPR006459; CASP/CASPL.
DR   InterPro; IPR006702; CASP_dom.
DR   Pfam; PF04535; DUF588; 1.
DR   TIGRFAMs; TIGR01569; A_tha_TIGR01569; 1.
PE   2: Evidence at transcript level;
KW   Cell membrane; Cell wall biogenesis/degradation; Glycoprotein; Membrane;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..205
FT                   /note="Casparian strip membrane protein 4"
FT                   /id="PRO_0000417805"
FT   TOPO_DOM        1..58
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        59..79
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        80..109
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        110..130
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        131..148
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        149..169
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        170..205
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        173
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   205 AA;  22819 MW;  9AD458862FB30D86 CRC64;
     MDIEKTGSRR EEEEPIVQKP KLEKGKGKAH VFAPPMNYSR IMEKHKQEKV SMAGWKRGVA
     IFDFVLRLIA AITAMAAAAK MATTEETLPF FTQFLQFSAD YTDLPTLSSF VIVNSIVGGY
     LTLSLPFSIV CILRPLAVPP RLFLILCDTA MMGLTMVAAS ASAAIVYLAH NGNSSSNWLP
     VCQQFGDFCK ERVAPWWLPL LQRLF