ID   XT3_XENTR               Reviewed;          25 AA.
AC   P84383;
DT   15-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 28.
DE   RecName: Full=Antimicrobial peptide 3;
DE   AltName: Full=Levitide-like peptide;
DE   AltName: Full=XT-3;
OS   Xenopus tropicalis (Western clawed frog) (Silurana tropicalis).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Pipoidea; Pipidae; Xenopodinae; Xenopus; Silurana.
OX   NCBI_TaxID=8364;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, AND
RP   MASS SPECTROMETRY.
RC   TISSUE=Skin secretion {ECO:0000269|PubMed:11738090};
RX   PubMed=11738090; DOI=10.1016/s0167-4838(01)00272-2;
RA   Ali M.F., Soto A., Knoop F.C., Conlon J.M.;
RT   "Antimicrobial peptides isolated from skin secretions of the diploid frog,
RT   Xenopus tropicalis (Pipidae).";
RL   Biochim. Biophys. Acta 1550:81-89(2001).
CC   -!- FUNCTION: Has antibacterial activity against Gram-positive bacterium
CC       S.aureus and Gram-negative bacterium E.coli, when in combination with
CC       XT1 and XT6. {ECO:0000269|PubMed:11738090}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:11738090}.
CC   -!- TISSUE SPECIFICITY: Skin. {ECO:0000269|PubMed:11738090}.
CC   -!- MASS SPECTROMETRY: Mass=2569.9; Mass_error=0.5; Method=Electrospray;
CC       Evidence={ECO:0000269|PubMed:11738090};
CC   -!- SIMILARITY: Belongs to the gastrin/cholecystokinin family.
CC       {ECO:0000305}.
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DR   AlphaFoldDB; P84383; -.
DR   Proteomes; UP000008143; Genome assembly.
DR   Proteomes; UP000790000; Unplaced.
DR   GO; GO:0005576; C:extracellular region; IDA:UniProtKB.
DR   GO; GO:0050829; P:defense response to Gram-negative bacterium; IDA:UniProtKB.
DR   GO; GO:0050830; P:defense response to Gram-positive bacterium; IDA:UniProtKB.
PE   1: Evidence at protein level;
KW   Amphibian defense peptide; Antibiotic; Antimicrobial;
KW   Direct protein sequencing; Reference proteome; Secreted.
FT   PEPTIDE         1..25
FT                   /note="Antimicrobial peptide 3"
FT                   /id="PRO_0000043900"
SQ   SEQUENCE   25 AA;  2495 MW;  AF3DD7132C6487F0 CRC64;
     GLASTLGSFL GKFAKGGAQA FLQPK