General Information


DRAVP ID  DRAVPe02292

Peptide Name   Protegrin 2

Sequence  RGGRLCYCRRRFCICV

Sequence Length  16

UniProt ID  P32195 

Taxon ID  9823 

Source  Leukocytes; porcine neutrophil, pig,S. scrofa

Validation   Experimentally Validated



Origin Information


Gene Name/ID  NPG2

GenBank  Not Available

Amino Acid position  131-146

Domain Accession ID  Not Available

Nucleotide sequence ID  Not Available

Molecular Type  Not Available

Chromosomal Position  Not Available



Activity Information


Target Organism  HSV-1,HSV-2.SARS-CoV-2

Assay  BRET-based assay

Activity 

  • [Ref:37576748]SARS-CoV-2:IC50 values of 0.83 ± 0.07 nM

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  Not Available



Structure Information


PDB ID  None

Predicted Structure Download 

Linear/Cyclic  Linear

N-terminal Modification  Free

C-terminal Modification  Free

Other Modification  Disulfide bridge formation was performed on crude peptides.

Stereochemistry  L



Physicochemical Information


Formula  C81H137N31O18S4

Absent amino acids  ADEHKMNOPQSTUW

Common amino acids  R

Mass  1961.42

Pl  9.88

Basic residues  5

Acidic residues  0

Hydrophobic residues  4

Net charge  5

Boman Index  3.18

Hydrophobicity  0.044

Aliphatic Index  66.88

Half Life 

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

Extinction Coefficient cystines  1740

Absorbance 280nm  0.887

Polar residues  10



Literature Information


Literature 1

Title   Synthesis of protegrin-related peptides and their antibacterial and anti-human immunodeficiency virus activity

Pubmed ID   8647100

Reference   Chem Pharm Bull (Tokyo). 1995 May;43(5):853-858

Author   Tamamura H, Murakami T, Horiuchi S, Sugihara K, Otaka A, Takada W, Ibuka T, Waki M, Yamamoto N, Fujii N

DOI    10.1111/j.1432-1033.1996.0575p.x

Literature 2

Title   Protegrin-2, a potential inhibitor for targeting SARS-CoV-2 main protease Mpro

Pubmed ID   37576748

Reference   Computational and structural biotechnology journal, 21, 3665–3671.

Author   Jan, Z., Geethakumari, A. M., Biswas, K. H., & Jithesh, P. V. (2023)

DOI   10.1016/j.csbj.2023.07.020