ID   BPP4_BOTIN              Reviewed;          11 AA.
AC   P30424;
DT   01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1994, sequence version 2.
DT   29-SEP-2021, entry version 53.
DE   RecName: Full=Bradykinin-potentiating peptide S4,1,2;
DE            Short=BPP;
DE   AltName: Full=Angiotensin-converting enzyme inhibitor;
OS   Bothrops insularis (Golden lancehead) (Lachesis insularis).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC   Serpentes; Colubroidea; Viperidae; Crotalinae; Bothrops.
OX   NCBI_TaxID=8723;
RN   [1]
RP   PROTEIN SEQUENCE, AND PYROGLUTAMATE FORMATION AT GLN-1.
RC   TISSUE=Venom;
RX   PubMed=2386615; DOI=10.1007/bf01025312;
RA   Cintra A.C.O., Vieira C.A., Giglio J.R.;
RT   "Primary structure and biological activity of bradykinin potentiating
RT   peptides from Bothrops insularis snake venom.";
RL   J. Protein Chem. 9:221-227(1990).
CC   -!- FUNCTION: This peptide both inhibits the activity of the angiotensin-
CC       converting enzyme (ACE) and enhances the action of bradykinin by
CC       inhibiting the peptidases that inactivate it. It acts as an indirect
CC       hypotensive agent.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- TISSUE SPECIFICITY: Expressed by the venom gland.
CC   -!- SIMILARITY: Belongs to the bradykinin-potentiating peptide family.
CC       {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   PIR; D37196; D37196.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0008191; F:metalloendopeptidase inhibitor activity; IEA:UniProtKB-KW.
DR   GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR   GO; GO:0008217; P:regulation of blood pressure; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Hypotensive agent; Metalloenzyme inhibitor;
KW   Metalloprotease inhibitor; Protease inhibitor; Pyrrolidone carboxylic acid;
KW   Secreted; Toxin.
FT   PEPTIDE         1..11
FT                   /note="Bradykinin-potentiating peptide S4,1,2"
FT                   /id="PRO_0000043510"
FT   MOD_RES         1
FT                   /note="Pyrrolidone carboxylic acid"
FT                   /evidence="ECO:0000269|PubMed:2386615"
SQ   SEQUENCE   11 AA;  1143 MW;  20BBBF13C7741777 CRC64;
     QGGPPRPQIP P