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VKT1B_CONCL
ID   VKT1B_CONCL             Reviewed;          60 AA.
AC   D2Y489;
DT   25-JAN-2012, integrated into UniProtKB/Swiss-Prot.
DT   02-MAR-2010, sequence version 1.
DT   25-MAY-2022, entry version 35.
DE   RecName: Full=Kunitz-type serine protease inhibitor conotoxin Cal9.1b {ECO:0000303|PubMed:21172372};
DE   Flags: Precursor; Fragment;
OS   Californiconus californicus (California cone) (Conus californicus).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Gastropoda;
OC   Caenogastropoda; Neogastropoda; Conoidea; Conidae; Californiconus.
OX   NCBI_TaxID=1736779;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Venom duct;
RX   PubMed=21172372; DOI=10.1016/j.toxicon.2010.12.008;
RA   Elliger C.A., Richmond T.A., Lebaric Z.N., Pierce N.T., Sweedler J.V.,
RA   Gilly W.F.;
RT   "Diversity of conotoxin types from Conus californicus reflects a diversity
RT   of prey types and a novel evolutionary history.";
RL   Toxicon 57:311-322(2011).
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000305|PubMed:21172372}.
CC   -!- TISSUE SPECIFICITY: Expressed by the venom duct.
CC       {ECO:0000305|PubMed:21172372}.
CC   -!- DOMAIN: The cysteine framework is IX (C-C-C-C-C-C).
CC   -!- SIMILARITY: Belongs to the venom Kunitz-type family. {ECO:0000305}.
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DR   EMBL; GU306153; ADB04232.1; -; mRNA.
DR   AlphaFoldDB; D2Y489; -.
DR   SMR; D2Y489; -.
DR   ConoServer; 3963; Conkunitzin-Cal9.1b precursor.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0004867; F:serine-type endopeptidase inhibitor activity; IEA:UniProtKB-KW.
DR   GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR   CDD; cd00109; KU; 1.
DR   Gene3D; 4.10.410.10; -; 1.
DR   InterPro; IPR002223; Kunitz_BPTI.
DR   InterPro; IPR036880; Kunitz_BPTI_sf.
DR   Pfam; PF00014; Kunitz_BPTI; 1.
DR   PRINTS; PR00759; BASICPTASE.
DR   SMART; SM00131; KU; 1.
DR   SUPFAM; SSF57362; SSF57362; 1.
DR   PROSITE; PS50279; BPTI_KUNITZ_2; 1.
PE   2: Evidence at transcript level;
KW   Disulfide bond; Protease inhibitor; Secreted; Serine protease inhibitor;
KW   Toxin.
FT   PROPEP          <1..2
FT                   /evidence="ECO:0000305|PubMed:21172372"
FT                   /id="PRO_5000566306"
FT   PEPTIDE         5..60
FT                   /note="Kunitz-type serine protease inhibitor conotoxin
FT                   Cal9.1b"
FT                   /evidence="ECO:0000305|PubMed:21172372"
FT                   /id="PRO_5000566307"
FT   DOMAIN          7..57
FT                   /note="BPTI/Kunitz inhibitor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00031"
FT   SITE            17..18
FT                   /note="Reactive bond for chymotrypsin"
FT                   /evidence="ECO:0000250"
FT   DISULFID        7..57
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00031"
FT   DISULFID        16..40
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00031"
FT   DISULFID        32..53
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00031"
FT   NON_TER         1
SQ   SEQUENCE   60 AA;  6708 MW;  901FD1842BE17DA5 CRC64;
     RTKRDVCELP FEEGPCFAAI RVYAYNAETG DCEQLTYGGC EGNGNRFATL EDCDNTCARY
 
 
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