General Information


DRAVP ID  DRAVPe00621

Peptide Name   T20v9(T20 [H6R; S7E; E10,22S; E11,25N; S12A; Q13R; N14T; E17T; K18D; Q21E; L24R; L26V])

Sequence  YTSLIRELISNARTQQTDNEESLRNVDKWASLWNWF

Sequence Length  36

UniProt ID  P04578 

Taxon ID  None

Source  Synthetic construct(derived from T20)

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  HIV

Assay  neutralization assay

Activity 

  • [Ref.31228294]HIV-1 N43:inhibition of virus infection in U87 cells(IC50=1.20 µg/ml);
  • HIV-1 JRCSF:inhibition of virus infection in U87 cells(IC50=0.34 µg/ml);
  • HIV-1 94UG103:inhibition of pseudovirus infection in U87 cells(IC50=0.41 µg/ml);
  • HIV-1 92BR020:inhibition of pseudovirus infection in U87 cells(IC50=0.82 µg/ml);
  • HIV-1 IAVI C22:inhibition of pseudovirus infection in U87 cells(IC50=1.09 µg/ml);
  • HIV-1 92HT021:inhibition of pseudovirus infection in U87 cells(IC50=0.35 µg/ml);
  • HIV-1 JRCSF-GIA:inhibition of pseudovirus infection in U87 cells(IC50=16.8 µg/ml).

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

Cytotoxicity 

  • No cytotoxicity information or data found in the reference(s) presented in this entry

Binding Target  membrane

Mechanism  The peptide acts by binding to the heptad repeat 1 (HR1) region of gp41 and preventing the interaction of the HR1 and HR2 domains, which is required for virus–cell fusion.(By similar)



Structure Information


PDB ID  None

Predicted Structure Download  DRAVPe00621

Linear/Cyclic  Linear

N-terminal Modification  Acetylation

C-terminal Modification  Amidation

Other Modification  None

Stereochemistry  L



Physicochemical Information


Formula  C195H295N55O61

Absent amino acids  CGHMP

Common amino acids  LNS

Mass  4385.82

Pl  4.94

Basic residues  4

Acidic residues  5

Hydrophobic residues  13

Net charge  -1

Boman Index  -10012

Hydrophobicity  -84.44

Aliphatic Index  78.61

Half Life 

  •     Mammalian:2.8 hour
  •     Yeast:10 min
  •     E.coli:2 min

Extinction Coefficient cystines  17990

Absorbance 280nm  514

Polar residues  12



Literature Information


Literature 1

Title   Optimization of peptidic HIV-1 fusion inhibitor T20 by phage display.

Pubmed ID   31228294

Reference   Protein Sci. 2019 Aug;28(8):1501-1512.

Author   Chen G, Cook JD, Ye W, Lee JE, Sidhu SS.

DOI   10.1002/pro.3669