• DRAMP ID

    • DRAMP02926
    • Peptide Name

    • Tachyplesin I (Tac; TP1; Horseshoe Crab, arachnids, Chelicerata, arthropods, invertebrates, animals)
    • Source

    • Tachypleus tridentatus (Japanese horseshoe crab)
    • Family

    • Belongs to the tachyplesin/polyphemusin family.
    • Gene

    • Not found
    • Sequence

    • KWCFRVCYRGICYRRCR
    • Sequence Length

    • 17
    • Protein Existence

    • Protein level
    • Biological Activity

    • Antimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, Antiviral, Anti-HIV, Anti-cancer
    • Target Organism

    • No MICs found in DRAMP database
    • Hemolytic Activity

      • [Ref.29870123] 9.6% hemolytic activity at 8 μg/mL and 72.8% hemolytic activity at 512 μg/mL against human red blood cells.
    • Cytotoxicity

      • [Ref.28429216]It possessed a cytotoxic effect on HL-60 cells (acutehuman promyelocytic leukemia cells) , K562 cells(myelogenous leukemia cells) , TSU cells (prostatecancer cells) .
    • Binding Target

    • Cell membrane
    • Linear/Cyclic

    • Cyclic
    • N-terminal Modification

    • Free
    • C-terminal Modification

    • Amidation (Arg17)
    • Nonterminal Modifications and Unusual Amino Acids

    • Disulfide bond between Cys3 and Cys16,Cys7 and Cys12.
    • Stereochemistry

    • L
    • Structure

    • Beta strand
    • Structure Description

    • This stability is due to the rigid structure imposed by the two disulfide linkages. Its amphipathic nature is closely associated with biological activity. A
    • Helical Wheel Diagram

    • DRAMP02926 helical wheel diagram
  • 1WO0-> 
    1WO1-> 
    • Predicted Structure

    • There is no predicted structure for DRAMP02926.
    • Formula

    • C99H154N34O20S4
    • Absent Amino Acids

    • ADEHLMNPQST
    • Common Amino Acids

    • R
    • Mass

    • 2268.77
    • PI

    • 9.93
    • Basic Residues

    • 6
    • Acidic Residues

    • 0
    • Hydrophobic Residues

    • 4
    • Net Charge

    • +6
    • Boman Index

    • -60.1
    • Hydrophobicity

    • -0.518
    • Aliphatic Index

    • 40
    • Half Life

      • Mammalian:1.3 hour
      • Yeast:3 min
      • E.coli:2 min
    • Extinction Coefficient Cystines

    • 8730
    • Absorbance 280nm

    • 545.63
    • Polar Residues

    • 7

DRAMP02926

    • Function

    • Significantly inhibits the growth of Gram-negative and Gram-positive bacteria, also anti-HIV activity may be due to the inhibition of virual adsorption to cells.
    • PTM

    • Contains two disulfide bonds 3-16; 7-12 and Arginine amide at R17.
  • ·Literature 1
    • Title

    • Solution and Micelle-Bound Structures of Tachyplesin I and its Active Aromatic Linear Derivatives.
    • Reference

    • Biochemistry 2002; 41: 12359.
    • Author

    • Laederach A, Andreotti AH, Fulton, DB.
  • ·Literature 2
    • Title

    • Tachyplesins isolated from hemocytes of Southeast Asian horseshoe crabs (Carcinoscorpius rotundicauda and Tachypleus gigas): identification of a new tachyplesin, tachyplesin III, and a processing intermediate of its precursor.
    • Reference

    • J Biochem. 1990 Aug;108(2):261-266.
    • Author

    • Muta T, Fujimoto T, Nakajima H, Iwanaga S.
  • ·Literature 3
    • Title

    • Characterization of Tachyplesin Peptides and Their Cyclized Analogues to Improve Antimicrobial and Anticancer Properties.
    • Reference

    • Int J Mol Sci. 2019 Aug 26;20(17):4184.
    • Author

    • Vernen F, Harvey PJ, Dias SA, Veiga AS, Huang YH, Craik DJ, Lawrence N, Troeira Henriques S.