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_2211
Peptide NameKalata B7
PMID(s)28669767, 20564013, 11535828, 17534989, 18618891, 18557620, 18295894, 18426225
Plant Source (Scientific Name)Viola hederacea, Oldenlandia affinis
Plant Source (Common Name)Native Violet, Blue Diamond Flower
Plant FamilyViolaceae, Rubiaceae
Peptide FamilyCyclic Peptide
Peptide FunctionAntibacterial, Anticancer, Antifungal, Nematocide, Molluscicidal, Metal-binding, Membrane-Binding, Antiparasitic, Hemolytic, Antimicrobial
Peptide Function DescriptionTarget site- Lipid Bilayer; 50% Hemolysis against Human erythrocytes at 55.2 ±1.3 µM, The Kalata B7 showed significant activity in inhibiting development of nematode larvae; shows molluscicidal activity; Kalata B7 binds to Mn2 in the presence of DPC micelles; Kalata B7 binds to DPC micelles
Activity AgainstEscherichia coli (MBC50: 20 µM), Escherichia coli (MBC99: 40 µM), Escherichia coli (MIC: 160 µM), Escherichia coli (MIC: >160 µM), Escherichia coli (MIC: >160 µM), Escherichia coli (MIC: >160 µM), Pseudomonas aeruginosa (MBC50: 0.313 µM), Pseudomonas aeruginosa (MBC99: 0.625 µM), Pseudomonas aeruginosa (MIC: 1.25 µM), Pseudomonas aeruginosa (MIC: 160 µM), Pseudomonas aeruginosa (MIC: 160 µM), Staphylococcus aureus (MBC50: 80 µM), Staphylococcus aureus (MBC99: 160 µM), Staphylococcus aureus (MIC: >160 µM), Candida albicans (MFC50: 40 µM), Candida albicans (MFC99: 160 µM), Candida albicans (MIC: >160 µM), Human histiocytic lymphoma U-937/GTB(IC50: 29 µM)
IC50 value29 µM
SequenceGLPVCGETCTLGTCYTQGCTCSWPICKRN
Sequence Length29
ValidationExperimental evidence at protein level
Average Molecular Weight (Da)3095.6
Monoisotopic Molecular Weight (Da)3093.33
Isoelectric Point (pI)7.77
Method / ExtractionEST, Amino acid analysis, MS, NMR


Secondary Information
Tertiary Structure and DSSP ReportClick to View Structure
Physico-Chemical Properties of peptidesClick to View Physico-Chemical Details of PPepDB_2211


External links (Uniprot, PDB and Source Information Database)
UniprotP58457, B6E619
NCBI17433130
EMBL--NA--
Link to Source DatabasesDBAASP_5238, PhytAMP_PHYT00203, EROP-Moscow_04067, Cybase_26, CAMPSQ6418, APD_01054
Addtional InformationSynthesis Type: Ribosomal, NMR spatial structure of ternary complex Kalata B7/Mn2?? micelle (Shenkarev ZO et al J Inorg Biochem. 2008 May-Jun;102(5-6):1246-56). Divalent cation coordination is an invarint property of all cyclotides. Mn2 was found to be coordinated with E7, T8, T13, and Y15 (for details, go to the PDB). You can rotate, zoom, and view the 3D structure here in the PDB . Updated 2/2014.