Basic Information

IDDRAMP03596
SequenceAFTCHCRRSCYSTEYSYGTCTVMGINHRFCCL
Length32
NameHuman defensin-6 (HD-6; Defensin, alpha 6; Human, mammals, animals)
SourceHomo sapiens (Human)
ActivityAntimicrobial, Antibacterial, Anti-Gram+, Anti-Gram-, Antifungal, Antiviral(SARS-CoV-2)
Pathogen[Ref.34206990]Virus:SARS-CoV-2:inhibition of infection in HEK293T-hACE2 cells(HD6 only blocked SARS-CoV-2 infection at the highest concentration tested (50 μg/mL, 13 μM)).##Gram-negative bacteria: Escherichia coli ATCC 8739 (vLD50>256 µg/ml), E. coli ATCC 25922 (vLD50=103±14 µg/ml), Enterobacter aerogenes ATCC 13048 (vLD50=156±11 µg/ml);##Gram-positive bacteria: Staphylococcus aureus ATCC 25923 (vLD50>256 µg/ml), S. aureus ATCC 29213 (vLD50>256 µg/ml), Bacillus cereus ATCC 10876 (vLD50=25±13 µg/ml).(Ref.3)##NOTE: vLD50, virtual lethal doses (vLDs), equivalent to conventional 50% lethal doses (LD50s).
Hemolytic ActivityNo 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.
N-terminal ModificationFree
C-terminal ModificationFree
Linear/Cyclic/BranchedCyclic
Uniprot Q01524
PDB 1ZMQ, 3QTE resolved by X-ray.
3D View
PDB DownloadDownload PDB Predicted by Alphafold2
PubMed ID34206990, 8417977, 17088326, 15616305

Physicochemical Properties

Residues32
SequenceAFTCHCRRSCYSTEYSYGTCTVMGINHRFCCL
Molecular Weight3714.262
Grand Average of Hydropathy0
Isoelectric Point8.347
Charge at pH 7.41.528
Secondary StructureHelix: 0.250, Turn: 0.188, Sheet: 0.125
Instability Index75.959
Aromaticity0.156

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