General Information


DRAVP ID  DRAVPe01774

Peptide Name   P9

Sequence  SALEEQYKTFLDKFMHELEDLLYQLSL

Sequence Length  27

UniProt ID  No entry found

Taxon ID  None

Source  Synthetic construct

Validation   Experimentally Validated



Origin Information


Gene Name/ID  Not Available

GenBank  Not Available

Amino Acid position  Not Available

Domain Accession ID  Not Available

Nucleotide sequence ID  Not Available

Molecular Type  Not Available

Chromosomal Position  Not available



Activity Information


Target Organism  SARS-CoV-2

Assay  plaque assay

Activity 

  • [Ref.33580154]SARS-CoV-2:93% inhibition of replication in Vero-E6 cells at 10 μM;inhibition of replication in Calu-3 cells(IC50=53 nM).

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

Cytotoxicity 

  • [Ref.33580154]The peptide proved to be devoid of cell toxicity on Vero-E6 and Calu-3 cells.

Binding Target  Not found

Mechanism  The peptide was designed mimicking the N-terminal helix of hACE2 protein,which could prevent the SARS-CoV-2 from infecting human cells, blocking the interaction between hACE2 and the virus spike protein.



Structure Information


PDB ID  None

Predicted Structure Download  No predicted structure available

Linear/Cyclic  Linear

N-terminal Modification  Free

C-terminal Modification  Amidation

Other Modification  None

Stereochemistry  L



Physicochemical Information


Formula  C152H231N33O47S

Absent amino acids  CGINPRVW

Common amino acids  L

Mass  3304.76

Pl  4.35

Basic residues  3

Acidic residues  6

Hydrophobic residues  10

Net charge  -3

Boman Index  -3661

Hydrophobicity  -29.63

Aliphatic Index  104.81

Half Life 

  •     Mammalian:1.9 hour
  •     Yeast:>20 hour
  •     E.coli:>10 hour

Extinction Coefficient cystines  2980

Absorbance 280nm  114.62

Polar residues  5



Literature Information


Literature 1

Title   Human ACE2 peptide-mimics block SARS-CoV-2 pulmonary cells infection.

Pubmed ID   33580154

Reference   Commun Biol. 2021 Feb 12;4(1):197.

Author   Karoyan P, Vieillard V, Gómez-Morales L, Odile E, Guihot A, Luyt CE, Denis A, Grondin P, Lequin O.

DOI   10.1038/s42003-021-01736-8