Basic Information

IDDRAMP20884
SequenceKRFKKFFRKLKKSVKKRKKEFKKKPRVIGVSIPF
Length34
NameCath-B
SourceSynthetic construct
ActivityAntimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-
Pathogen[Ref.29392557] Gram-positive bacteria: MRSA PS-2 (MIC=256 μg/ml);##Gram-negative bacteria, MRSA PS-7 (MIC=32 μg/ml), MRSA PS-18 (MIC=128 μg/ml), MRSA PS-45 (MIC=64 μg/ml), MRSA PS-46 (MIC=128 μg/ml), MRSA PS-50 (MIC=128 μg/ml), MRSA PS-59 (MIC=32 μg/ml), MRSA PS-84 (MIC=128 μg/ml), MRSA PS-131 (MIC=64 μg/ml), MRSA PS-139 (MIC=64 μg/ml), MRSA PS-162 (MIC=256 μg/ml), MRSA PS-165 (MIC=128 μg/ml), Staphylococcus aureus ATCC 25923 (MIC=32 μg/ml), Staphylococcus aureus ATCC 33591 (MIC=256 μg/ml);##Gram-negative bacteria: Escherichia coli ATCC 25922 (MIC=2 μg/ml), Escherichia coli ATCC 51446 (MIC=8 μg/ml), Klebsiella pneumoniae ATCC 700603 (MIC=32 μg/ml), Klebsiella pneumoniae ATCC 13883 (MIC=8 μg/ml)
Hemolytic Activity[Ref.29392557] 0% haemolysis at 1.0 μg/ml, 0% haemolysis at 2.0 μg/ml, 0% haemolysis at 4.0 μg/ml, 0% haemolysis at 8.0 μg/ml, 3% haemolysis at 16.0 μg/ml, 3% haemolysis at 31.2 μg/ml, 3% haemolysis at 62.5 μg/ml, 3% haemolysis at 125.0 μg/ml, 3% haemolysis at 250.0 μg/ml, 4% haemolysis at 500.0 μg/ml, 5% haemolysis at 1000.0 μg/ml against human red blood cells
Cytotoxicity[Ref.29392557] The cell viability of HUVEC is 118%, 100% and 75% at peptide concentrations of 35.5 μg/ml, 71 μg/ml and 113 μg/ml.## The cell viability of H9c2 is 123%, 97%, and 88% at peptide concentrations of 35.5, 71, and 113 μg/ml.
N-terminal ModificationFree
C-terminal ModificationFree
Linear/Cyclic/BranchedLinear
Uniprot
PDB
3D View
PDB DownloadDownload PDB Predicted by Alphafold2
PubMed ID29392557

Physicochemical Properties

Residues34
SequenceKRFKKFFRKLKKSVKKRKKEFKKKPRVIGVSIPF
Molecular Weight4236.283
Grand Average of Hydropathy-1.118
Isoelectric Point12
Charge at pH 7.415.526
Secondary StructureHelix: 0.324, Turn: 0.147, Sheet: 0.059
Instability Index14.582
Aromaticity0.147

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