General Information


DRAVP ID  DRAVPe01947

Peptide Name   TAT-Kα2

Sequence  RRRQRRKKRGYGFVNLLFLVVE

Sequence Length  22

UniProt ID  No entry found

Source  Synthetic construct



Activity Information


Target Organism  VSV,NDV,RSV,Influenza virus, HSV

Assay  Plaque assay

Activity 

  • [Ref.28687749]Vesicular stomatitis virus(VSV):inhibition of viral infection in 293T cells(IC50=2.9 μM);
  • Respiratory Syncytial Virus(RSV):inhibition of viral infection in Hep2 cells(IC50=3.4 μM);
  • Newcastle disease virus(NDV):inhibition of viral infection(IC50=0.8 μM);
  • Parainfluenza virus:inhibition of viral infection(IC50=2.4 μM);
  • Influenza virus (H1N1) A/Puerto Rico/8/34:inhibition of viral infection(IC50=0.5 μM);
  • Influenza virus (H5N2) A/bird/Korea/W81/2005:inhibition of viral infection(IC50=0.8 μM);
  • Influenza virus (H7N3) A/Aquatic bird/Korea/W44/2005:inhibition of viral infection(IC50=1.2 μM);
  • Influenza virus (H9N2) A/Chicken/Korea/116/2004:inhibition of viral infection(IC50=0.7 μM);
  • Porcine epidemic diarrhea virus:inhibition of viral infection(IC50=3.5 μM);
  • Herpes simplex virus:inhibition of viral infection(IC50=5.7 μM).

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

Cytotoxicity 

  • [Ref.28687749]No cytotoxicity against MDCK cells up to 100 μM.

Binding Target  Envolope

Mechanism  display virucidal activity by disrupting viral envelopes.



Structure Information


PDB ID  None

Predicted Structure Download  No predicted structure available

Linear/Cyclic  Linear

N-terminal Modification  Free

C-terminal Modification  Free

Other Modification  None

Stereochemistry  L



Physicochemical Information


Formula  C126H212N44O28

Absent amino acids  ACDHIMPSTW

Common amino acids  R

Mass  2791.35

Pl  12.01

Basic residues  8

Acidic residues  1

Hydrophobic residues  8

Net charge  7

Boman Index  -8503

Hydrophobicity  -80.91

Aliphatic Index  92.73

Half Life 

  •     Mammalian:1 hour
  •     Yeast:2 min
  •     E.coli:2 min

Extinction Coefficient cystines  1490

Absorbance 280nm  70.95

Polar residues  4



Literature Information


Literature 1

Title   Inhibition of highly pathogenic avian influenza (HPAI) virus by a peptide derived from vFLIP through its direct destabilization of viruses

Pubmed ID   28687749

Reference   Sci Rep. 2017 Jul 7;7(1):4875.

Author   Moon HJ, Nikapitiya C, Lee HC, Park ME, Kim JH, Kim TH, Yoon JE, Cho WK, Ma JY, Kim CJ, Jung JU, Lee JS.

DOI   10.1038/s41598-017-04777-4