ID   DEF_PETIN               Reviewed;          78 AA.
AC   Q40901;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Defensin-like protein;
DE   AltName: Full=Gamma-thionin homolog PPT;
DE   Flags: Precursor;
OS   Petunia integrifolia (Violet-flowered petunia) (Salpiglossis integrifolia).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Petunioideae; Petunia.
OX   NCBI_TaxID=4103;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Pistil;
RX   PubMed=7948892; DOI=10.1007/bf00039555;
RA   Karunanandaa B., Singh A., Kao T.H.;
RT   "Characterization of a predominantly pistil-expressed gene encoding a
RT   gamma-thionin-like protein of Petunia inflata.";
RL   Plant Mol. Biol. 26:459-464(1994).
CC   -!- FUNCTION: May be involved in the defense of the pistil against pathogen
CC       infection.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Predominantly expressed in the pistil during all
CC       stages of flower development.
CC   -!- SIMILARITY: Belongs to the DEFL family. {ECO:0000305}.
CC   -!- CAUTION: Was initially thought to be a thionin.
CC       {ECO:0000305|PubMed:7948892}.
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DR   EMBL; L27173; AAA64740.1; -; Genomic_DNA.
DR   PIR; S52634; S52634.
DR   AlphaFoldDB; Q40901; -.
DR   SMR; Q40901; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0050832; P:defense response to fungus; IEA:UniProtKB-KW.
DR   GO; GO:0031640; P:killing of cells of another organism; IEA:UniProtKB-KW.
DR   CDD; cd00107; Knot1; 1.
DR   Gene3D; 3.30.30.10; -; 1.
DR   InterPro; IPR008176; Defensin_plant.
DR   InterPro; IPR003614; Scorpion_toxin-like.
DR   InterPro; IPR036574; Scorpion_toxin-like_sf.
DR   PRINTS; PR00288; PUROTHIONIN.
DR   SMART; SM00505; Knot1; 1.
DR   SUPFAM; SSF57095; SSF57095; 1.
DR   PROSITE; PS00940; GAMMA_THIONIN; 1.
PE   2: Evidence at transcript level;
KW   Antimicrobial; Disulfide bond; Fungicide; Plant defense; Secreted; Signal.
FT   SIGNAL          1..31
FT                   /evidence="ECO:0000255"
FT   CHAIN           32..78
FT                   /note="Defensin-like protein"
FT                   /id="PRO_0000007051"
FT   DISULFID        34..78
FT                   /evidence="ECO:0000250"
FT   DISULFID        45..65
FT                   /evidence="ECO:0000250"
FT   DISULFID        51..72
FT                   /evidence="ECO:0000250"
FT   DISULFID        55..74
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   78 AA;  8799 MW;  263DB3AC9D619265 CRC64;
     MGRSIRLFAT FFLIAMLFLS TEMGPMTSAE ARTCESQSHR FHGTCVRESN CASVCQTEGF
     IGGNCRAFRR RCFCTRNC