ID   BNP_CROAT               Reviewed;          25 AA.
AC   P0CV87;
DT   03-MAY-2011, integrated into UniProtKB/Swiss-Prot.
DT   03-MAY-2011, sequence version 1.
DT   25-MAY-2022, entry version 19.
DE   RecName: Full=C-type natriuretic peptide;
DE            Short=CNP;
OS   Crotalus atrox (Western diamondback rattlesnake).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC   Serpentes; Colubroidea; Viperidae; Crotalinae; Crotalus.
OX   NCBI_TaxID=8730;
RN   [1]
RP   PROTEIN SEQUENCE, AND MASS SPECTROMETRY.
RC   TISSUE=Venom;
RX   PubMed=19371136; DOI=10.1021/pr900249q;
RA   Calvete J.J., Fasoli E., Sanz L., Boschetti E., Righetti P.G.;
RT   "Exploring the venom proteome of the western diamondback rattlesnake,
RT   Crotalus atrox, via snake venomics and combinatorial peptide ligand library
RT   approaches.";
RL   J. Proteome Res. 8:3055-3067(2009).
CC   -!- FUNCTION: Snake venom natriuretic peptide that exhibits hypotensive and
CC       vasodepressor activity. Acts by activating natriuretic receptors (NPR1
CC       and/or NPR2 and/or NPR3) (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- TISSUE SPECIFICITY: Venom gland.
CC   -!- MASS SPECTROMETRY: Mass=2537.6; Method=Unknown;
CC       Evidence={ECO:0000269|PubMed:19371136};
CC   -!- SIMILARITY: In the C-terminal section; belongs to the natriuretic
CC       peptide family. {ECO:0000305}.
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DR   AlphaFoldDB; P0CV87; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0005179; F:hormone activity; IEA:InterPro.
DR   GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR   GO; GO:0008217; P:regulation of blood pressure; IEA:UniProtKB-KW.
DR   GO; GO:0042311; P:vasodilation; IEA:UniProtKB-KW.
DR   InterPro; IPR000663; Natr_peptide.
DR   InterPro; IPR030480; Natr_peptide_CS.
DR   InterPro; IPR002408; Natriuretic_peptide_brain.
DR   Pfam; PF00212; ANP; 1.
DR   PRINTS; PR00712; BNATPEPTIDE.
DR   PRINTS; PR00710; NATPEPTIDES.
DR   SMART; SM00183; NAT_PEP; 1.
DR   PROSITE; PS00263; NATRIURETIC_PEPTIDE; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Disulfide bond; Hypotensive agent; Secreted;
KW   Toxin; Vasoactive; Vasodilator.
FT   PEPTIDE         1..25
FT                   /note="C-type natriuretic peptide"
FT                   /id="PRO_0000407584"
FT   DISULFID        9..25
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   25 AA;  2540 MW;  F6DFD8DD4A707985 CRC64;
     AKKRAGNGCF GLKLDRIGSM SGLGC