General Information


DRAVP ID  DRAVPe02297

Peptide Name   Retrocyclin-3

Sequence  RICRCICGRRICRCICGR

Sequence Length  18

UniProt ID  No entry found

Taxon ID  None

Source  Derived from a silent gene (pre-stop)

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-1

Assay  Luciferase Assay

Activity  Not Available

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

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

Binding Target  Not Found

Mechanism   It binds to gp120 and CD4, thereby inhibiting HIV entry.



Structure Information


PDB ID  None

Predicted Structure Download 

Linear/Cyclic  Cyclic

N-terminal Modification  Free

C-terminal Modification  Free

Other Modification  three intramolecular disulfide bonds

Stereochemistry  L



Physicochemical Information


Formula  C82H154N36O19S6

Absent amino acids  ADEFHKLMNOPQSTUVWY

Common amino acids  CR

Mass  2140.71

Pl  9.69

Basic residues  6

Acidic residues  0

Hydrophobic residues  4

Net charge  6

Boman Index  3.34

Hydrophobicity  0.289

Aliphatic Index  86.67

Half Life 

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

Extinction Coefficient cystines  375

Absorbance 280nm  0.175

Polar residues  12



Literature Information


Literature 1

Title   Activity of alpha- and theta-defensins against primary isolates of HIV-1

Pubmed ID   15210812

Reference   Journal of immunology (Baltimore, Md. : 1950), 173(1), 515–520.

Author   Wang, W., Owen, S. M., Rudolph, D. L., Cole, A. M., Hong, T., Waring, A. J., Lal, R. B., & Lehrer, R. I. (2004).

DOI   10.4049/jimmunol.173.1.515