ID   API7_SOLTU              Reviewed;         221 AA.
AC   Q41448;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=Aspartic protease inhibitor 7;
DE   AltName: Full=Cathepsin D inhibitor p749;
DE   Flags: Precursor;
OS   Solanum tuberosum (Potato).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Solanoideae; Solaneae; Solanum.
OX   NCBI_TaxID=4113;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Tuber;
RX   PubMed=8278518; DOI=10.1104/pp.101.2.703;
RA   Hannapel D.J.;
RT   "Nucleotide and deduced amino acid sequence of the 22-kilodalton cathepsin
RT   D inhibitor protein of potato (Solanum tuberosum L.).";
RL   Plant Physiol. 101:703-704(1993).
RN   [2]
RP   INDUCTION.
RA   Suh S.-C., Stiekema W.J., Hannapel D.J.;
RT   "Proteinase-inhibitor activity and wound-inducible gene expression of the
RT   22-kDa potato-tuber proteins.";
RL   Planta 184:423-430(1991).
CC   -!- FUNCTION: Inhibitor of cathepsin D (aspartic protease). May also
CC       inhibit trypsin and chymotrypsin (serine proteases). Protects the plant
CC       by inhibiting proteases of invading organisms.
CC   -!- SUBCELLULAR LOCATION: Vacuole {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Tubers, leaves.
CC   -!- INDUCTION: By wounding. Also expressed in upper non-wounded systemic
CC       leaves. {ECO:0000269|Ref.2}.
CC   -!- SIMILARITY: Belongs to the protease inhibitor I3 (leguminous Kunitz-
CC       type inhibitor) family. {ECO:0000305}.
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DR   EMBL; M96257; AAA18564.1; -; mRNA.
DR   PIR; JQ2246; JQ2246.
DR   RefSeq; NP_001275020.1; NM_001288091.1.
DR   AlphaFoldDB; Q41448; -.
DR   SMR; Q41448; -.
DR   MEROPS; I03.002; -.
DR   PRIDE; Q41448; -.
DR   GeneID; 102577754; -.
DR   KEGG; sot:102577754; -.
DR   Proteomes; UP000011115; Unassembled WGS sequence.
DR   ExpressionAtlas; Q41448; baseline.
DR   GO; GO:0005773; C:vacuole; IEA:UniProtKB-SubCell.
DR   GO; GO:0019828; F:aspartic-type endopeptidase inhibitor activity; IEA:UniProtKB-KW.
DR   GO; GO:0004867; F:serine-type endopeptidase inhibitor activity; IEA:UniProtKB-KW.
DR   CDD; cd00178; STI; 1.
DR   InterPro; IPR011065; Kunitz_inhibitor_STI-like_sf.
DR   InterPro; IPR002160; Prot_inh_Kunz-lg.
DR   PANTHER; PTHR33107; PTHR33107; 1.
DR   Pfam; PF00197; Kunitz_legume; 1.
DR   PRINTS; PR00291; KUNITZINHBTR.
DR   SMART; SM00452; STI; 1.
DR   SUPFAM; SSF50386; SSF50386; 1.
DR   PROSITE; PS00283; SOYBEAN_KUNITZ; 1.
PE   2: Evidence at transcript level;
KW   Aspartic protease inhibitor; Disulfide bond; Glycoprotein;
KW   Protease inhibitor; Reference proteome; Serine protease inhibitor; Signal;
KW   Vacuole.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000250"
FT   PROPEP          24..32
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000016918"
FT   CHAIN           33..221
FT                   /note="Aspartic protease inhibitor 7"
FT                   /id="PRO_0000016919"
FT   MOTIF           26..31
FT                   /note="Vacuolar targeting signal"
FT                   /evidence="ECO:0000250"
FT   SITE            99..100
FT                   /note="Reactive bond for trypsin"
FT   SITE            144..145
FT                   /note="Reactive bond for chymotrypsin"
FT                   /evidence="ECO:0000250"
FT   CARBOHYD        51
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        80..126
FT                   /evidence="ECO:0000250"
FT   DISULFID        175..186
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   221 AA;  24485 MW;  EE63685B8E09F295 CRC64;
     MMKCLFLLCL CLFPILVFSS TFTSQNPINL PSESPVPKRV LDTNGKKLNP NSSYRIISTF
     WGALGGDVYL GKSPNSDAPC PDGVFRYNSD VGPSGTPVRF IPLSGANIFE DQLLNIQFNI
     PTVKLCGSYT IWKVGNINAH LRTMLLETGG TIGQADSSYF KIVKSSKFGY NLLYCPLTRH
     FLCPFCRDDN FCAKVGVVIQ NGKRRLALVN ENPLDVLFQE V