ID   CASP2_PANVG             Reviewed;         192 AA.
AC   P0DI34;
DT   13-JUN-2012, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2012, sequence version 1.
DT   25-MAY-2022, entry version 18.
DE   RecName: Full=Casparian strip membrane protein 2;
DE            Short=PvCASP2;
OS   Panicum virgatum (Blackwell switchgrass).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Panicodae; Paniceae; Panicinae; Panicum;
OC   Panicum sect. Hiantes.
OX   NCBI_TaxID=38727;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Etiolated seedling;
RA   Lucas S., Rokhsar D., Wang M., Lindquist E.A., Tobias C.M., Twigg P.,
RA   Sarath G., Anderson O., Vogel K.;
RT   "DOE Joint Genome Institute Panicum virgatum EST project.";
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; FL891603; -; NOT_ANNOTATED_CDS; mRNA.
DR   AlphaFoldDB; P0DI34; -.
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   Transmembrane; Transmembrane helix.
FT   CHAIN           1..192
FT                   /note="Casparian strip membrane protein 2"
FT                   /id="PRO_0000417793"
FT   TOPO_DOM        1..31
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        32..52
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        53..79
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        80..100
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        101..112
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        113..133
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        134..166
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        167..187
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        188..192
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        56
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   192 AA;  20617 MW;  0AF9B54F43D32E7D CRC64;
     MTKDVVVEHG ESSKAPLVAA PAASGVGRAA SVADVFLRFL AIVGTIASAI SMGTTNETLP
     FFTQFIQFEA KYSDLPSFTF FVAANAVVCT YLVLSIPLSI VHIVRPRARY SRLVLVFFDA
     AMLTLLTAGA SAAAAIVYLA HKGNVRANWF AICQQFDSFC ERISGSLIGS FAAMVLLIML
     IFLSAFALAR RH