AMP1_MIRJA
ID AMP1_MIRJA Reviewed; 61 AA.
AC P25403;
DT 01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 4.
DT 25-MAY-2022, entry version 81.
DE RecName: Full=Antimicrobial peptide 1;
DE AltName: Full=MJ-AMP1;
DE Short=AMP1;
DE Flags: Precursor; Fragment;
GN Name=AMP1;
OS Mirabilis jalapa (Garden four-o'clock).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC Caryophyllales; Nyctaginaceae; Mirabilis.
OX NCBI_TaxID=3538;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC TISSUE=Seed;
RX PubMed=7647302; DOI=10.1007/bf00021195;
RA de Bolle M.F., Eggermont K., Duncan R.E., Osborn R.W., Terras F.R.G.,
RA Broekaert W.F.;
RT "Cloning and characterization of two cDNA clones encoding seed-specific
RT antimicrobial peptides from Mirabilis jalapa L.";
RL Plant Mol. Biol. 28:713-721(1995).
RN [2]
RP PROTEIN SEQUENCE OF 25-61, AND PYROGLUTAMATE FORMATION AT GLN-25.
RC TISSUE=Seed;
RX PubMed=1733929; DOI=10.1016/s0021-9258(18)45866-8;
RA Cammue B.P.A., de Bolle M.F.C., Terras F.R.G., Proost P., van Damme J.,
RA Rees S.B., Vanderleyden J., Broekaert W.F.;
RT "Isolation and characterization of a novel class of plant antimicrobial
RT peptides from Mirabilis jalapa L. seeds.";
RL J. Biol. Chem. 267:2228-2233(1992).
CC -!- FUNCTION: Possesses antifungal activity and is also active on two
CC tested Gram-positive bacteria but is non-toxic for Gram-negative
CC bacteria and cultured human cells.
CC -!- SUBUNIT: Homodimer.
CC -!- SUBCELLULAR LOCATION: Secreted.
CC -!- TISSUE SPECIFICITY: Found only in seeds.
CC -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC structurally defines this protein as a knottin. {ECO:0000250}.
CC -!- PTM: Three disulfide bonds are present.
CC -!- SIMILARITY: Belongs to the AMP family. {ECO:0000305}.
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DR EMBL; U15538; AAA80484.1; -; mRNA.
DR PIR; S57815; S57815.
DR AlphaFoldDB; P25403; -.
DR SMR; P25403; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0042742; P:defense response to bacterium; IEA:UniProtKB-KW.
DR GO; GO:0050832; P:defense response to fungus; IEA:UniProtKB-KW.
DR GO; GO:0031640; P:killing of cells of another organism; IEA:UniProtKB-KW.
DR InterPro; IPR013006; Antimicrobial_C6_CS.
DR InterPro; IPR009101; Gurmarin/antifun_pep.
DR InterPro; IPR024206; Gurmarin/antimicrobial_peptd.
DR Pfam; PF11410; Antifungal_pept; 1.
DR SUPFAM; SSF57048; SSF57048; 1.
DR PROSITE; PS60011; PLANT_C6_AMP; 1.
PE 1: Evidence at protein level;
KW Antibiotic; Antimicrobial; Direct protein sequencing; Disulfide bond;
KW Fungicide; Knottin; Plant defense; Pyrrolidone carboxylic acid; Secreted;
KW Signal.
FT SIGNAL <1..24
FT /evidence="ECO:0000269|PubMed:1733929"
FT CHAIN 25..61
FT /note="Antimicrobial peptide 1"
FT /id="PRO_0000001310"
FT MOD_RES 25
FT /note="Pyrrolidone carboxylic acid"
FT /evidence="ECO:0000269|PubMed:1733929"
FT DISULFID 26..43
FT /evidence="ECO:0000250"
FT DISULFID 33..47
FT /evidence="ECO:0000250"
FT DISULFID 42..58
FT /evidence="ECO:0000250"
FT NON_TER 1
SQ SEQUENCE 61 AA; 6605 MW; 1957BF5FC2FE75C2 CRC64;
LPVAFLKFAI VLILFIAMSA MIEAQCIGNG GRCNENVGPP YCCSGFCLRQ PGQGYGYCKN
R