General Information

    • DRAMP ID

    • DRAMP29239

    • Peptide Name

    • hACE2(21-55)A36K-F40E

    • Sequence

    • IEEQAKTFLDKFNHEⓀEDLⒺYQSSLASWNYNTNIT

    • Sequence Length

    • 35

    • Original Sequence

    • IEEQAKTFLDKFNHEAEDLFYQSSLASWNYNTNIT

    • Source

    • Synthetic construct

Activity Information

    • Biological Activity

    • Antimicrobial, Antiviral(SARS-CoV-2)

    • Comments

    • Mechanism of action:The stapled peptide inhibit the RBD-hACE2 complex formation, and hACE2 α1-helix-based peptidomimetics could potentially prevent SARS-CoV-2 from entering the human cells through hACE2 and thus inhibit subsequent viral replication.

    • Target Organism

      • [Ref.33651072]Virus:SARS-CoV-2:inhibition of SARS-CoV-2 Spike protein-hACE2 complex formation(IC50=3.6 μM).

    • Hemolytic Activity

      • No hemolytic activity information found.

    • Cytotoxicity

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

Structure Information

    • Linear/Cyclic

    • Cyclic (Stapled)

    • N-terminal Modification

    • Free

    • C-terminal Modification

    • Free

    • Special Amino Acid and Stapling Position

    • Ⓚ (16) and Ⓔ (20) are corss-linked by lactam stapling.

    • Stereochemistry

    • L

    • Secondary Structure

    • ①52% α-helical content in 10 mM PBS at pH 7.4 with 30% TFE at 298 K.②6-13% α-helical content in 10 mM PBS at pH 7.4 and 298 K.

    • Structure Description

    • Low helicity for stapled hACE2 peptides in absence of TFE, with predictors of helicity averaging to 6-13% helical content. In the presence of TFE, α-helical structures can be observed for various synthetic hACE2 peptides with predictors averaging from 11 to 52% helical content

    • Helical Wheel Diagram

    • DRAMP29239 helical wheel diagram

    • Predicted Structure

    • There is no predicted structure for DRAMP29239.

Literature Information

  • Literature 1

    • Title

    • Targeting SARS-CoV-2 spike protein by stapled hACE2 peptides.

    • Reference

    • Chem Commun (Camb). 2021 Apr 4;57(26):3283-3286.

    • Author

    • Maas MN , Hintzen JCJ , Löffler PMG , Mecinović J .