DRAVP ID  DRAVPe00680

Peptide Name   P-55

Sequence  WEQKIEELLKKAEEQQKKNEEELKK

Sequence Length  25

UniProt ID  P03377 

Source  Synthetic construct

Target Organism  HIV

Assay  cell-fusion assay,single-cycle infection assay

Activity 

• [Ref.30089693]HIV-1 HXB2:inhibition of cell-cell fusion in TZM-bl cells(IC50=14.2±1.8 nM);
• HIV-1 NL4-3:inhibition of pseudovirus infection in TZM-bl cells(IC50=16.9±2 nM);
• HIV-1 JRCSF:inhibition of virus infection in TZM-bl cells(IC50=32.3±9.9 nM).

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)

PDB ID  None

Predicted Structure Download  DRAVPe00680

Linear/Cyclic  Linear

N-terminal Modification  Acetylation

C-terminal Modification  Amidation

Other Modification  None

Stereochemistry  L

Literature 1

Title   Structural and Functional Characterization of Membrane Fusion Inhibitors with Extremely Potent Activity against Human Immunodeficiency Virus Type 1 (HIV-1), HIV-2, and Simian Immunodeficiency Virus.

Pubmed ID   30089693

Reference   J Virol. 2018 Sep 26;92(20):e01088-18.

Author   Chong H, Zhu Y, Yu D, He Y.

DOI   10.1128/JVI.01088-18