General Information


DRAVP ID  DRAVPe00299

Peptide Name   Neutrophil defensin 1 (Defensin, alpha 1; HNP-1, HP-1; Human, mammals, animals)

Sequence  ACYCRIPACIAGERRYGTCIYQGRLWAFCC

Sequence Length  30

UniProt ID  P59665  P11479  Q14125  Q6EZF6 

Taxon ID  None

Source  Homo sapiens (Human)

Other Link  DRAVPa1304

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  SARS-CoV-2

Assay 

Activity 

  • [Ref.34206990]SARS-CoV-2:inhibition of infection in HEK293T-hACE2 cells(approximately 50% inbibition at 1 μg/mL (290 nM));
  • SARS-CoV-2 variant P.1:inhibition of infection in HeLa-hACE2 cells(67% inbibition at 50 μg/mL);
  • SARS-CoV-2 variant B.1.1.7:inhibition of infection in HeLa-hACE2 cells(58% inbibition at 50 μg/mL).

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

Cytotoxicity 

  • [Ref.34206990]No cytotoxicity on HEK293T cells up to 50 μg/mL.

Binding Target  Not found

Mechanism  No machanism information found in the reference(s) presented in this entry



Structure Information


PDB ID  2KHT 

Predicted Structure Download  DRAVPe00299

Linear/Cyclic  Cyclic

N-terminal Modification  Free

C-terminal Modification  Cyclization(Cys2 and Cys30).

Other Modification  Disulfide bonds between Cys2 and Cys30,Cys4 and Cys19,Cys9 and Cys29.

Stereochemistry  L



Physicochemical Information


Formula  C150H228N44O38S6

Absent amino acids  DHKMNSV

Common amino acids  C

Mass  3448.09

Pl  8.68

Basic residues  4

Acidic residues  1

Hydrophobic residues  10

Net charge  3

Boman Index  -3229

Hydrophobicity  30

Aliphatic Index  65.33

Half Life 

  •     Mammalian:4.4 hour
  •     Yeast:>20 hour
  •     E.coli:>10 hour

Extinction Coefficient cystines  10345

Absorbance 280nm  356.72

Polar residues  13



Literature Information


Literature 1

Title   Human Defensins Inhibit SARS-CoV-2 Infection by Blocking Viral Entry.

Pubmed ID   34206990

Reference   Viruses. 2021 Jun 26;13(7):1246.

Author   Xu C, Wang A, Marin M, Honnen W, Ramasamy S, Porter E, Subbian S, Pinter A, Melikyan GB, Lu W, Chang TL.

DOI   10.3390/v13071246