General Information

    • DRAMP ID

    • DRAMP00821

    • Peptide Name

    • Cycloviolacin-O18 (Plant defensin)

    • Source

    • Viola odorata (Sweet violet)

    • Family

    • Belongs to the cyclotide family

    • Gene

    • Not found

    • Sequence

    • GIPCGESCVYIIPCTVTALAQCKCKSKVCYN

    • Sequence Length

    • 31

    • Protein Existence

    • Protein level

Activity Information

    • Biological Activity

    • Insecticidal

    • Target Organism

    • No MICs found in DRAMP database

    • Hemolytic Activity

      • No hemolysis information or data found in the reference(s) presented in this entry

    • Cytotoxicity

    • No cytotoxicity information found in the reference(s) presented

    • Binding Target

    • Not found

Structure Information

    • Linear/Cyclic

    • Cyclic

    • N-terminal Modification

    • No specific N-terminal

    • C-terminal Modification

    • No specific C-terminal

    • Nonterminal Modifications and Unusual Amino Acids

    • Disulfide bonds between Cys4 and Cys21; Cys8 and Cys23; Cys13 and Cys28.

    • Stereochemistry

    • L

    • Structure

    • Bridge

    • Structure Description

    • Not found

    • Helical Wheel Diagram

    • DRAMP00821 helical wheel diagram

    • PDB ID

    • None

    • Predicted Structure

    • There is no predicted structure for DRAMP00821.

Physicochemical Information

    • Formula

    • C141H232N36O42S6

    • Absent Amino Acids

    • DFHMRW

    • Common Amino Acids

    • C

    • Mass

    • 3295.97

    • PI

    • 8.32

    • Basic Residues

    • 3

    • Acidic Residues

    • 1

    • Hydrophobic Residues

    • 9

    • Net Charge

    • +2

    • Boman Index

    • -2.88

    • Hydrophobicity

    • 0.539

    • Aliphatic Index

    • 84.84

    • Half Life

      • Mammalian:30 hour
      • Yeast:>20 hour
      • E.coli:>10 hour

    • Extinction Coefficient Cystines

    • 3355

    • Absorbance 280nm

    • 111.83

    • Polar Residues

    • 15

DRAMP00821

DRAMP00821 chydropathy plot

Comments Information

    • Function

    • Probably participates in a plant defense mechanism.

    • PTM

    • This is a cyclic peptide which may contain three disulfide bonds 4-21; 8-23; 13-28.

Literature Information

  • ·Literature 1

    • Title

    • A novel suite of cyclotides from Viola odorata: sequence variation and the implications for structure, function and stability.

    • Reference

    • Biochem J. 2006 Nov 15;400(1):1-12.

    • Author

    • Ireland DC, Colgrave ML, Craik DJ.