Detailed Peptide Information


This page shows detailed information of individual peptides present in PlantPepDB database. The page is majorly divided into 3 sections. The first sections contains primary information like peptide activity, source, sequence, etc. In the secondary information section user can access the tertiary structure as well as the physico-chemical properties by clicking the respective links. Further there is also link of the source database and research article from which the peptide data is retrieved. Download the information by clicking



Primary Information
PPepDB IDPPepDB_3958
Peptide NameMJ-AMP1
PMID(s)1733929, 7647302
Plant Source (Scientific Name)Mirabilis jalapa
Plant Source (Common Name)Garden four-o'clock
Plant FamilyNyctaginaceae
Peptide FamilyKnottin
Peptide FunctionAntibacterial, Antifungal
Peptide Function DescriptionShown to possess strong antifungal activity
Activity AgainstGram-positive bacteria: Bacillus megaterium (IC50= 6 µg/mL), Sarcina lutea (IC50= 100 µg/mL). NOTE! not active against Erwinia carotovora, Escherichia coli. Fungi: Alternaria brassicola (IC50= 20 µg/mL), Ascochyta pisi (IC50= 200 µg/mL), Botrytis cinerea (IC50= 50 µg/mL), Cercospora beticola (IC50= 10 µg/mL), Colletotrichum lindemuthianum (IC50= 5 µg/mL), Fusarium culmorum (IC50= 30 µg/mL), Fusarium oxysporum f. sp. Pisi (IC50= 15 µg/mL), Fusarium oxysporum f. sp. Lycopersici (IC50= 200 µg/mL), Nectria haematococca (IC50= 15 µg/mL), Phoma betae (IC50= 25 µg/mL), Pyrenophora tritici-repentis (IC50= 300 µg/mL), Pyricularia oryzae (IC50= 6 µg/mL), Rhizoctonia solani (IC50= 60 µg/mL), Verticiliium dahliae (IC50= 12 µg/mL), Venturia inaequalis (IC50= 12 µg/mL).
IC50 value6 µg/mL | 100 µg/mL | 20 µg/mL | 200 µg/mL | 50 µg/mL | 10 µg/mL | 5 µg/mL | 30 µg/mL | 15 µg/mL | 200 µg/mL | 15 µg/mL | 25 µg/mL | 300 µg/mL | 6 µg/mL | 60 µg/mL | 12 µg/mL | 12 µg/mL
SequenceQCIGNGGRCNENVGPPYCCSGFCLRQPGQGYGYCKNR
Sequence Length37
ValidationExperimental evidence at protein level
Average Molecular Weight (Da)4000.51
Monoisotopic Molecular Weight (Da)3997.71
Isoelectric Point (pI)8.66
Method / Extraction--NA--


Secondary Information
Tertiary Structure and DSSP ReportClick to View Structure
Physico-Chemical Properties of peptidesClick to View Physico-Chemical Details of PPepDB_3958


External links (Uniprot, PDB and Source Information Database)
UniprotP25403
NCBI1703271
EMBL--NA--
Link to Source DatabasesPhytAMP_PHYT00270, CAMPSQ187, APD_00203
Addtional InformationThree disulfide bonds.Transgenic plants: expression of this peptide in tomato enhances resistance to early blight disease (Planta. 2005 Nov;222(5):858-66).