ID   PA3A_LITPA              Reviewed;          48 AA.
AC   P84281;
DT   23-NOV-2004, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 28.
DE   RecName: Full=Palustrin-3a;
OS   Lithobates palustris (Pickerel frog) (Rana palustris).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Neobatrachia; Ranoidea; Ranidae; Lithobates.
OX   NCBI_TaxID=298395;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, AND
RP   MASS SPECTROMETRY.
RC   TISSUE=Skin secretion {ECO:0000269|PubMed:11087945};
RX   PubMed=11087945; DOI=10.1016/s0167-4838(00)00191-6;
RA   Basir Y.J., Knoop F.C., Dulka J., Conlon J.M.;
RT   "Multiple antimicrobial peptides and peptides related to bradykinin and
RT   neuromedin N isolated from skin secretions of the pickerel frog, Rana
RT   palustris.";
RL   Biochim. Biophys. Acta 1543:95-105(2000).
CC   -!- FUNCTION: Antimicrobial activity against Gram-negative bacterium
CC       E.coli. {ECO:0000269|PubMed:11087945}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:11087945}.
CC   -!- TISSUE SPECIFICITY: Expressed by the skin glands.
CC       {ECO:0000269|PubMed:11087945}.
CC   -!- MASS SPECTROMETRY: Mass=4931.9; Mass_error=1.0; Method=Electrospray;
CC       Evidence={ECO:0000269|PubMed:11087945};
CC   -!- SIMILARITY: Belongs to the frog skin active peptide (FSAP) family.
CC       Brevinin subfamily. {ECO:0000269|PubMed:11087945}.
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DR   AlphaFoldDB; P84281; -.
DR   GO; GO:0005576; C:extracellular region; IDA:UniProtKB.
DR   GO; GO:0050829; P:defense response to Gram-negative bacterium; IDA:UniProtKB.
PE   1: Evidence at protein level;
KW   Amphibian defense peptide; Antibiotic; Antimicrobial;
KW   Direct protein sequencing; Disulfide bond; Secreted.
FT   CHAIN           1..48
FT                   /note="Palustrin-3a"
FT                   /id="PRO_0000190094"
FT   DISULFID        43..48
FT                   /evidence="ECO:0000250|UniProtKB:P82875"
SQ   SEQUENCE   48 AA;  4934 MW;  CFA62332A79FDB0C CRC64;
     GIFPKIIGKG IKTGIVNGIK SLVKGVGMKV FKAGLNNIGN TGCNEDEC