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ITR1_MOMRE
ID   ITR1_MOMRE              Reviewed;          29 AA.
AC   P17680;
DT   01-AUG-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1990, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=Trypsin inhibitor 1;
DE   AltName: Full=MRTI-I;
DE   AltName: Full=Trypsin inhibitor I;
OS   Momordica repens.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Cucurbitales; Cucurbitaceae; Momordiceae; Momordica.
OX   NCBI_TaxID=3675;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   TISSUE=Seed;
RA   Joubert F.J.;
RT   "Trypsin isoinhibitors from Mormodica repens seeds.";
RL   Phytochemistry 23:1401-1410(1984).
CC   -!- FUNCTION: Inhibits trypsin.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC       structurally defines this protein as a knottin. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the protease inhibitor I7 (squash-type serine
CC       protease inhibitor) family. {ECO:0000305}.
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DR   AlphaFoldDB; P17680; -.
DR   SMR; P17680; -.
DR   MEROPS; I07.017; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0004867; F:serine-type endopeptidase inhibitor activity; IEA:UniProtKB-KW.
DR   CDD; cd00150; PlantTI; 1.
DR   InterPro; IPR000737; Prot_inh_squash.
DR   InterPro; IPR011052; Proteinase_amylase_inhib_sf.
DR   Pfam; PF00299; Squash; 1.
DR   PRINTS; PR00293; SQUASHINHBTR.
DR   SUPFAM; SSF57027; SSF57027; 1.
DR   PROSITE; PS00286; SQUASH_INHIBITOR; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Knottin; Protease inhibitor;
KW   Secreted; Serine protease inhibitor.
FT   PEPTIDE         1..29
FT                   /note="Trypsin inhibitor 1"
FT                   /id="PRO_0000044391"
FT   SITE            5..6
FT                   /note="Reactive bond"
FT   DISULFID        3..20
FT                   /evidence="ECO:0000250"
FT   DISULFID        10..22
FT                   /evidence="ECO:0000250"
FT   DISULFID        16..28
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   29 AA;  3250 MW;  CD42378A48C3910F CRC64;
     GICPRILMEC KRDSDCLAQC VCKRQGYCG
 
 
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