Basic Information

IDDRAMP03591
SequenceACYCRIPACIAGERRYGTCIYQGRLWAFCC
Length30
NameNeutrophil defensin 1 (Defensin, alpha 1; HNP-1, HP-1; 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(approximately 50% inbibition at 1 μg/mL (290 nM));SARS-CoV-2 variant P.1:inhibition of infection in HeLa-hACE2 cells(67% inbibition at 50 μg/mL);SARS-CoV-2 variant B.1.1.7:inhibition of infection in HeLa-hACE2 cells(58% inbibition at 50 μg/mL).##[Ref.15616305] Gram-negative bacteria: Escherichia coli ATCC 8739 (vLD50=3.6±0.3 μg/ml), E. coli ATCC 25922 (vLD50=3.7±0.4 μg/ml), Enterobacter aerogenes ATCC 13048 (vLD50=10±0.5 μg/ml);##Gram-positive bacteria: Staphylococcus aureus ATCC 25923 (vLD50=4.2±1.0 μg/ml), Staphylococcus aureus ATCC 29213 (vLD50=2.1±0.3 μg/ml), Bacillus cereus ATCC 10876 (vLD50=0.22±0.03 μg/ml).##NOTE: vLD50, virtual lethal doses (vLDs), equivalent to conventional 50% lethal doses (LD50s).##[Ref.15118082]Gram-positive bacteria: Bacillus subtilis (Inhibition zone=24 mm in PH5.5, Inhibition zone=20 mm in PH7.5 completely inhibit at 10 μg/well), Staphylococcus aureus (Inhibition zone=1 mm in PH5.5, Inhibition zone=7 mm incompletely inhibit and Inhibition zone=2 mm completely inhibit in PH7.5 at 10 μg/well);##Gram-negative bacteria: Escherichia coli (Inhibition zone=5 mm incompletely inhibit and Inhibition zone=2 mm completely inhibit in PH7.5 at 10 μg/well);##Fungi: Candida albicans (Inhibition zone=13 mm in PH5.5, Inhibition zone=10 mm in PH7.5 completely inhibit at 10 μg/well).
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 ModificationCyclization(Cys2 and Cys30).
Linear/Cyclic/BranchedCyclic
Uniprot P59665, P11479, Q14125, Q6EZF6
PDB 2KHT resolved by NMR
3D View
PDB DownloadDownload PDB Predicted by Alphafold2
PubMed ID34206990, 19253295, 15616305, 15118082

Physicochemical Properties

Residues30
SequenceACYCRIPACIAGERRYGTCIYQGRLWAFCC
Molecular Weight3448.077
Grand Average of Hydropathy0.3
Isoelectric Point8.678
Charge at pH 7.42.454
Secondary StructureHelix: 0.300, Turn: 0.133, Sheet: 0.200
Instability Index55.71
Aromaticity0.167

Similar Structure Search

Candidates based on structure

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