General Information


DRAVP ID  DRAVPe01812

Peptide Name   Smp76

Sequence  GWINEKKMQQKIDEKIGKNIIGGMAKAVIHKMAKNEFQCVANVDTLGNCKKHCAKTTGEKGYCHGTKCKCGIELSY

Sequence Length  76

UniProt ID  No entry found

Source  Scorpio maurus palmatu



Activity Information


Target Organism  DENV

Assay  Plaque assay

Activity 

  • [Ref.32435168]Dengue Virus(DENV):inhibition of viral infection in Vero/SLAM cells(IC50= 0.01 μg/ml).

Hemolytic Activity 

  • [Ref.32435168]human red blood cells:HC50>10 μg/ml.

Cytotoxicity 

  • [Ref.32435168]Huh7it-1 cells:CC50>10 μg/ml.

Binding Target  Not found

Mechanism  No mechanism information found in the reference(s).



Structure Information


PDB ID  None

Predicted Structure Download  No predicted structure available

Linear/Cyclic  Cyclic

N-terminal Modification  Free

C-terminal Modification  Free

Other Modification  Disulfide bonds between Cys39 and Cys63, Cys49 and Cys68, Cys53 and Cys70.

Stereochemistry  L



Physicochemical Information


Formula  C362H595N105O106S9

Absent amino acids  PR

Common amino acids  K

Mass  8402.89

Pl  9.22

Basic residues  17

Acidic residues  7

Hydrophobic residues  19

Net charge  10

Boman Index  -11300

Hydrophobicity  -56.84

Aliphatic Index  64.21

Half Life 

  •     Mammalian:30 hour
  •     Yeast:>20 hour
  •     E.coli:>10 hour

Extinction Coefficient cystines  8855

Absorbance 280nm  118.07

Polar residues  27



Literature Information


Literature 1

Title   Smp76, a Scorpine-Like Peptide Isolated from the Venom of the Scorpion Scorpio maurus palmatus, with a Potent Antiviral Activity Against Hepatitis C Virus and Dengue Virus.

Pubmed ID   32435168

Reference   Int J Pept Res Ther. 2020;26(2):811-821.

Author   El-Bitar AMH, Sarhan M, Abdel-Rahman MA, Quintero-Hernandez V, Aoki-Utsubo C, Moustafa MA, Possani LD, Hotta H.

DOI   10.1007/s10989-019-09888-2