Basic Information

IDDRAMP21463
SequenceIHKFWRRWFKHI
Length12
NameQa (De Novo Synthesis)
Sourcesynthetic construct
ActivityAntimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
Pathogen[Ref.30538681] Gram-positive bacteria:Staphylococcus aureus ATCC 29213(MIC=8μM), Staphylococcus aureus ATCC 43300(MIC=16μM), Staphylococcus epidermidis ATCC 12228(MIC=16μM), Streptococci faecalis ATCC 29212(MIC=16μM), Bacillus subtilis CMCC 63501(MIC=32μM);##Gram-negative bacteria:Escherichia coli ATCC 25922(MIC=16μM), Escherichia coli UB 1005(MIC=8μM), bacteria pyocyaneum ATCC 27853(MIC=16μM), Salmonella typhimurium ATCC 7731(MIC=16μM), Salmonella Pulloru C79-13(MIC=16μM)
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 Qa is 61.3%, 66.8%, 76.5%, 71.4%, 72.4%, 73.3%, 65.9% and 39.6% 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
SequenceIHKFWRRWFKHI
Molecular Weight1754.092
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 Index158.742
Aromaticity0.333

Similar Structure Search

Candidates based on structure

Address: No.2699 Qianjin Street, Changchun City, China. Zip Code: 130012. 苏ICP备2021057230号-1.