ID   SSI_STREU               Reviewed;         108 AA.
AC   P80598;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 74.
DE   RecName: Full=Protease inhibitor SIL-V3;
OS   Streptomyces eurocidicus (Streptoverticillium eurocidicus).
OC   Bacteria; Actinobacteria; Streptomycetales; Streptomycetaceae;
OC   Streptomyces.
OX   NCBI_TaxID=66423;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=ATCC 27428 / DSM 40604 / JCM 4029 / NBRC 13491 / ISP 5604 / 549-A1;
RX   PubMed=9115178; DOI=10.1007/pl00006178;
RA   Taguchi S., Kojima S., Terabe M., Kumazawa Y., Kohriyama H., Suzuki M.,
RA   Miura K., Momose H.;
RT   "Molecular phylogenetic characterization of Streptomyces protease inhibitor
RT   family.";
RL   J. Mol. Evol. 44:542-551(1997).
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the protease inhibitor I16 (SSI) family.
CC       {ECO:0000305}.
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DR   AlphaFoldDB; P80598; -.
DR   SMR; P80598; -.
DR   MEROPS; I16.016; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0004867; F:serine-type endopeptidase inhibitor activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.350.10; -; 1.
DR   HAMAP; MF_00778; SSI; 1.
DR   InterPro; IPR000691; Prot_inh_I16_SSI.
DR   InterPro; IPR020054; Prot_inh_SSI_I16_CS.
DR   InterPro; IPR023549; Subtilisin_inhibitor.
DR   InterPro; IPR036819; Subtilisin_inhibitor-like_sf.
DR   Pfam; PF00720; SSI; 1.
DR   PRINTS; PR00294; SSBTLNINHBTR.
DR   SUPFAM; SSF55399; SSF55399; 1.
DR   PROSITE; PS00999; SSI; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Protease inhibitor; Secreted;
KW   Serine protease inhibitor.
FT   CHAIN           1..108
FT                   /note="Protease inhibitor SIL-V3"
FT                   /id="PRO_0000208660"
FT   SITE            68..69
FT                   /note="Reactive bond"
FT                   /evidence="ECO:0000250"
FT   DISULFID        29..44
FT                   /evidence="ECO:0000250"
FT   DISULFID        66..96
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   108 AA;  11378 MW;  A6011722450E089F CRC64;
     YAPSALVLTI GQGATAAESG VQRAVTLTCT PKSSGTHPDA KGACTQLRAA GGDFDKVTRI
     KSDTVCTKEW NPTVVTAEGV WDGRRISYEH TFANPCMAKA GKGLVFEF