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_3976
Peptide NameIb-AMP1
PMID(s)9305910, 9454588
Plant Source (Scientific Name)Impatiens balsamina
Plant Source (Common Name)Garden balsam
Plant FamilyBalsaminaceae
Peptide FamilyImpatiens family
Peptide FunctionAntibacterial, Antifungal
Peptide Function Descriptionplays a role in the defense of the germinating seed against microorganisms by inhibiting the growth of a range of filamentous fungi and bacteria, esprcially Gram-positive bacteria
Activity AgainstGram-positive bacteria: Bacillus subtilis (IC50= 10 µg/mL), Micrococcus luteus (IC50= 10 µg/mL), Staphylococcus aureus (IC50= 30 µg/mL), Streptococcus faecalis (IC50= 6 µg/mL). NOTE! Not active against Escherichia coli, Proteus vulgaris, Pseudomonas solanAngiotensin Converting Enzymearum. Fungi: Alternaria longipes (IC50= 3 µg/mL), Botrytis cinerea (IC50= 12 µg/mL), Cladosporium sphaerospermum (IC50= 1 µg/mL), Fusarium culmorum (IC50= 1 µg/mL), Penicillium digitatum (IC50= 3 µg/mL), Trichoderma viride (IC50= 6 µg/mL), Verticillium alboatrum (IC50= 3 µg/mL).
IC50 value10 µg/mL | 10 µg/mL | 30 µg/mL | 6 µg/mL | 3 µg/mL | 12 µg/mL | 1 µg/mL | 1 µg/mL | 3 µg/mL | 6 µg/mL | 3 µg/mL
SequenceQWGRRCCGWGPGRRYCVRWC
Sequence Length20
ValidationExperimental evidence at protein level
Average Molecular Weight (Da)2485.91
Monoisotopic Molecular Weight (Da)2484.12
Isoelectric Point (pI)9.88
Method / ExtractionNMR


Secondary Information
Tertiary Structure and DSSP ReportClick to View Structure
Physico-Chemical Properties of peptidesClick to View Physico-Chemical Details of PPepDB_3976


External links (Uniprot, PDB and Source Information Database)
UniprotO24006
NCBI2342597
EMBL--NA--
Link to Source DatabasesPhytAMP_PHYT00265, EROP-Moscow_02313, CAMPSQ667, APD_00913
Addtional InformationThe N-terminal glutamine is cyclized (pyroglutamate). It potentially contains two S-S bonds (6-16 & 7-20). The NMR study was reported (Patel SU et al 1998. Biochemistry. Jan 27;37(4):983-90). A linearized all-D amino acid mutant is also active against yeast and fungal strains (Thevissen K et al. 2005 Peptides 26: 1113-9).