ID   CASP1_HELAN             Reviewed;         212 AA.
AC   P0DI60;
DT   13-JUN-2012, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2012, sequence version 1.
DT   25-MAY-2022, entry version 14.
DE   RecName: Full=Casparian strip membrane protein 1;
DE            Short=HaCASP1;
OS   Helianthus annuus (Common sunflower).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Asterales; Asteraceae; Asteroideae;
OC   Heliantheae alliance; Heliantheae; Helianthus.
OX   NCBI_TaxID=4232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RA   Michelmore R.W., Knapp S., Rieseberg L., Bradford K., Kesseli R., Boore J.,
RA   Kozik A., Matvienko M., Lavelle D., Lai Z.;
RT   "Sunflower (Helianthus annuus) ESTs (set 2) from the compositae genome
RT   project http://compgenomics.ucdavis.edu/.";
RL   Submitted (MAY-2009) 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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; DY919660; -; NOT_ANNOTATED_CDS; mRNA.
DR   AlphaFoldDB; P0DI60; -.
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; Membrane; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..212
FT                   /note="Casparian strip membrane protein 1"
FT                   /id="PRO_0000417767"
FT   TOPO_DOM        1..49
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        50..70
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        71..100
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        101..121
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        122..133
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        134..154
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        155..186
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        187..207
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        208..212
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   REGION          1..28
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..25
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   212 AA;  22371 MW;  4E398DA3F41E6416 CRC64;
     MDSSNSTKET GDIPIPVTSS KSSKAAPPPV VAAKAKSTTK QPLVSGWKRG LGIIDFILRI
     CAIAAALAAA TAMGTTSQQL PFFTQFFQFK ADYNDLPAFT FFVIANAMAG AYLVLSLPFS
     ILCIVRPHIL GARLMLLVFD TVAVPLVTAA ASAAASIVYL AHNGNSDANW VAICRQFNDF
     CQRVSGAVVA SFITALLFVV LVAVSAVALR QK