General Information

    • DRAMP ID

    • DRAMP00832

    • Peptide Name

    • Cycloviolacin-H4 (Plant defensin)

    • Source

    • Viola hederacea (Australian violet)

    • Family

    • Belongs to the cyclotide family

    • Gene

    • Not found

    • Sequence

    • GIPCAESCVWIPCTVTALLGCSCSNNVCYN

    • Sequence Length

    • 30

    • Protein Existence

    • Protein level

Activity Information

    • Biological Activity

    • Antimicrobial, Antiviral

    • Target Organism

    • No MICs found in DRAMP database

    • Hemolytic Activity

      • [Ref.16441062] HD50=5.5 µM against human type A red blood cells.

    • 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 Cys20; Cys8 and Cys22; Cys13 and Cys27.

    • Stereochemistry

    • L

    • Structure

    • Bridge

    • Structure Description

    • Not found

    • Helical Wheel Diagram

    • DRAMP00832 helical wheel diagram

    • PDB ID

    • None

    • Predicted Structure

    • There is no predicted structure for DRAMP00832.

Physicochemical Information

    • Formula

    • C131H206N34O42S6

    • Absent Amino Acids

    • DFHKMQR

    • Common Amino Acids

    • C

    • Mass

    • 3121.64

    • PI

    • 4

    • Basic Residues

    • 0

    • Acidic Residues

    • 1

    • Hydrophobic Residues

    • 10

    • Net Charge

    • -1

    • Boman Index

    • 5.1

    • Hydrophobicity

    • 0.793

    • Aliphatic Index

    • 87.67

    • Half Life

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

    • Extinction Coefficient Cystines

    • 7365

    • Absorbance 280nm

    • 253.97

    • Polar Residues

    • 17

DRAMP00832

DRAMP00832 chydropathy plot

Comments Information

    • Function

    • Probably participates in a plant defense mechanism.

    • PTM

    • This is a cyclic peptide which contains three disulfide bonds 4-20; 8-22; 13-27.

Literature Information

  • ·Literature 1

    • Title

    • Plant cyclotides: A unique family of cyclic and knotted proteins that defines the cyclic cystine knot structural motif.

    • Reference

    • J Mol Biol. 1999 Dec 17;294(5):1327-1336.

    • Author

    • Craik DJ, Daly NL, Bond T, Waine C.