ID   CASP1_TOBAC             Reviewed;         209 AA.
AC   P0DI50;
DT   13-JUN-2012, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2012, sequence version 1.
DT   25-MAY-2022, entry version 21.
DE   RecName: Full=Casparian strip membrane protein 1;
DE            Short=NtCASP1;
OS   Nicotiana tabacum (Common tobacco).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   STRAIN=cv. K326; TISSUE=Seedling;
RA   Coates S.A., Dorlhac de Borne F., Ross J., Verrier J.L., Ward M., Delon R.;
RT   "A comprehensive survey of the N. tabacum transcriptome.";
RL   Submitted (SEP-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; DV160871; -; NOT_ANNOTATED_CDS; mRNA.
DR   RefSeq; XP_016440932.1; XM_016585446.1.
DR   AlphaFoldDB; P0DI50; -.
DR   STRING; 4097.P0DI50; -.
DR   GeneID; 107766637; -.
DR   KEGG; nta:107766637; -.
DR   OMA; MPRRTHH; -.
DR   OrthoDB; 1230007at2759; -.
DR   PhylomeDB; P0DI50; -.
DR   Proteomes; UP000084051; Unplaced.
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   2: Evidence at transcript level;
KW   Cell membrane; Cell wall biogenesis/degradation; Membrane;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..209
FT                   /note="Casparian strip membrane protein 1"
FT                   /id="PRO_0000417810"
FT   TOPO_DOM        1..46
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        47..67
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        68..96
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        97..117
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        118..129
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        130..150
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        151..179
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        180..200
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        201..209
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   209 AA;  22236 MW;  EB22C25C3D575003 CRC64;
     MEKSESTKID VVETNKERKG KAPLLGKAPV VAAAVVHAKG GGAKRGIAIF DLILRIAAFA
     SALGAAVAMA TTEETLPFFT QFFQFEASYD DLPTFTFFVV AMAIVVAYLV LSVPFSIVCI
     VRPHAVVPRL LLIIFDTVII ALTTGAAGSS AAIVYLAHNG NQDANWLAIC QQFGDFCQRV
     SGAVVAAFVT VVILIFLVVL SASALRRHH