Basic Information

IDDRAMP21464
SequenceIHFKWRRWKFHI
Length12
NameQna (De Novo Synthesis)
Sourcesynthetic construct
ActivityAntimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
Pathogen[Ref.30538681] Gram-positive bacteria:Staphylococcus aureus ATCC 29213(MIC=32μM), Staphylococcus aureus ATCC 43300(MIC=32μM), Staphylococcus epidermidis ATCC 12228(MIC=32μM), Streptococci faecalis ATCC 29212(MIC=64μM), Bacillus subtilis CMCC 63501(MIC=64μM);##Gram-negative bacteria:Escherichia coli ATCC 25922(MIC=32μM), Escherichia coli UB 1005(MIC=16μM), bacteria pyocyaneum ATCC 27853(MIC=32μM), Salmonella typhimurium ATCC 7731(MIC=32μM), Salmonella Pulloru C79-13(MIC=32μM)
Hemolytic Activity[Ref.30538681] MHC>128μM against human blood cells.The minimum hemolytic concentration (MHC) is defined as the peptide concentration resulting in 5% hemolysis.
Cytotoxicity[Ref.30538681] The cell viability of intestinal epithelial cells (IPEC-J2) induced by Qna is 67.3%, 65.0%, 73.7%, 77.9%, 68.2%, 68.2%, 62.2% and 51.2% at peptide concentrations of 1, 2, 4, 8, 16, 32, 64 and 128 μM.
N-terminal ModificationFree
C-terminal ModificationAmidation
Linear/Cyclic/BranchedLinear
Uniprot
PDB
3D View
PDB DownloadDownload PDB Predicted by Alphafold2
PubMed ID30538681

Physicochemical Properties

Residues12
SequenceIHFKWRRWKFHI
Molecular Weight1754.093
Grand Average of Hydropathy-0.867
Isoelectric Point12
Charge at pH 7.43.626
Secondary StructureHelix: 0.500, Turn: 0.000, Sheet: 0.000
Instability Index130.367
Aromaticity0.333

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