General Information

    • DRAMP ID

    • DRAMP21326

    • Peptide Name

    • RLR (Derived from PMAP-36)

    • Source

    • synthetic construct

    • Family

    • Not found

    • Gene

    • Not found

    • Sequence

    • WRLRWRLRWRLR

    • Sequence Length

    • 12

    • UniProt Entry

    • No entry found

    • Protein Existence

    • Synthetic form

Activity Information

    • Biological Activity

    • Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-

    • Target Organism

      • [Ref.31276398] Gram-positive bacteria:
        Target OrganismActivity
        Staphylococcus aureus 29213MIC=1 μM
        Staphylococcus aureus 25923MIC=2 μM
        Staphylococcus epidermidis 12228MIC=2 μM
        Staphylococcus aureus 11011 (MIC=1 μM);-
      • Gram-negative bacteria:
        Target OrganismActivity
        Escherichia coli 25922MIC=4 μM
        Escherichia coli 1005MIC=2 μM
        Staphylococcus typhiMIC=2 μM
        Escherichia coli 20411MIC=2 μM
        Acinetobacter baumannii AB1901MIC=2 μM
        Acinetobacter baumannii AB1902MIC=4 μM
        Pseudomonas aeruginosa 25349MIC=4 μM

    • Hemolytic Activity

      • [Ref.31276398] MHC>128μM. The minimum hemolytic concentration (MHC) is measured as the lowest concentration of the peptides that caused 5% hemolysis of human red blood cells (hRBCs).

    • Cytotoxicity

      • [Ref.31276398] The cell viability of the murine macrophage cell line RAW264.7 induced by RLR is 100%, 91.4%, 104.8%, 94.5%, 98.6%, 99.8%, 98.8% and 82.6% at peptide concentrations of 1, 2, 4, 8, 16, 32, 64 and 128 μM

    • Binding Target

    • Not found

Structure Information

    • Linear/Cyclic

    • Linear

    • N-terminal Modification

    • Free

    • C-terminal Modification

    • Amidation

    • Nonterminal Modifications and Unusual Amino Acids

    • None

    • Stereochemistry

    • L

    • Structure

    • α-helix in 50%TFE

    • Structure Description

    • Not found

    • Helical Wheel Diagram

    • DRAMP21326 helical wheel diagram

    • PDB ID

    • None

    • Predicted Structure

    • There is no predicted structure for DRAMP21326.

Physicochemical Information

    • Formula

    • C87H137N33O13

    • Absent Amino Acids

    • ACDEFGHIKMNPQSTVY

    • Common Amino Acids

    • R

    • Mass

    • 1853.26

    • PI

    • 12.7

    • Basic Residues

    • 6

    • Acidic Residues

    • 0

    • Hydrophobic Residues

    • 6

    • Net Charge

    • +6

    • Boman Index

    • -6777

    • Hydrophobicity

    • -1.525

    • Aliphatic Index

    • 97.5

    • Half Life

      • Mammalian:2.8 hour
      • Yeast:3 min
      • E.coli:2 min

    • Extinction Coefficient Cystines

    • 16500

    • Absorbance 280nm

    • 1500

    • Polar Residues

    • 0

DRAMP21326

Comments Information

    • Function

    • Antibacterial activity against Gram-positive bacteria and Gram-negative bacteria.

Literature Information

  • ·Literature 1

    • Title

    • Design of Trp-rich dodecapeptides with broad-spectrum antimicrobial potency and membrane-disruptive mechanism

    • Reference

    • J Med Chem. 2019 Aug 8;62(15):6941-6957. doi: 10.1021/acs.jmedchem.9b00304.

    • Author

    • Lyu Y, Chen T, Shang L, Yang Y, Li Z, Zhu J, Shan A.