ID   ES2RB_PELRI             Reviewed;          37 AA.
AC   P86021;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-JAN-2009, sequence version 1.
DT   25-MAY-2022, entry version 21.
DE   RecName: Full=Esculentin-2Rb {ECO:0000303|PubMed:18855342};
OS   Pelophylax ridibundus (Marsh frog) (Rana ridibunda).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Amphibia;
OC   Batrachia; Anura; Neobatrachia; Ranoidea; Ranidae; Pelophylax.
OX   NCBI_TaxID=8406;
RN   [1] {ECO:0000305}
RP   PROTEIN SEQUENCE, MASS SPECTROMETRY, DISULFIDE BOND, AND SUBCELLULAR
RP   LOCATION.
RC   TISSUE=Skin secretion {ECO:0000269|PubMed:18855342};
RX   PubMed=18855342; DOI=10.1002/rcm.3759;
RA   Samgina T.Y., Artemenko K.A., Gorshkov V.A., Ogourtsov S.V., Zubarev R.A.,
RA   Lebedev A.T.;
RT   "De novo sequencing of peptides secreted by the skin glands of the
RT   caucasian green frog Rana ridibunda.";
RL   Rapid Commun. Mass Spectrom. 22:3517-3525(2008).
CC   -!- FUNCTION: Antimicrobial peptide. {ECO:0000250|UniProtKB:P40846}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:18855342}.
CC   -!- TISSUE SPECIFICITY: Expressed by the skin glands.
CC       {ECO:0000305|PubMed:18855342}.
CC   -!- MASS SPECTROMETRY: Mass=3805; Method=Electrospray;
CC       Evidence={ECO:0000269|PubMed:18855342};
CC   -!- SIMILARITY: Belongs to the frog skin active peptide (FSAP) family.
CC       Esculentin subfamily. {ECO:0000255}.
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DR   AlphaFoldDB; P86021; -.
DR   SMR; P86021; -.
DR   GO; GO:0005576; C:extracellular region; IDA:UniProtKB.
DR   GO; GO:0042742; P:defense response to bacterium; IEA:UniProtKB-KW.
DR   InterPro; IPR012521; Antimicrobial_frog_2.
DR   Pfam; PF08023; Antimicrobial_2; 1.
PE   1: Evidence at protein level;
KW   Amphibian defense peptide; Antibiotic; Antimicrobial;
KW   Direct protein sequencing; Disulfide bond; Secreted.
FT   PEPTIDE         1..37
FT                   /note="Esculentin-2Rb"
FT                   /evidence="ECO:0000269|PubMed:18855342"
FT                   /id="PRO_0000361076"
FT   DISULFID        31..37
FT                   /evidence="ECO:0000269|PubMed:18855342"
SQ   SEQUENCE   37 AA;  3810 MW;  4822369057CB505F CRC64;
     GIFSLVKGVA KLAGKTLAKE GGKFGLELAM CKIAKQC