Peptide Database

Peptide Namea4 (IG-19 analogs)

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-positive

Toxicity / Safety ▸ Blood cell toxicity ▸ Hemolysis ▸ Hemolytic

Standard StatusStandard

Sequence Length19 amino acids

Chemical FormulaC115H207N35O20

DescriptionStandard

        IGKKFKRIVKRIKKFLRKL
    

Molecular Weight2400.10 Da

Isoelectric Point (pI)12.00

Net Charge (pH 7.0)9.75

Net Charge (pH 7.4) 9.54

Charge Density (pH 7.0) 0.5133

GRAVY Index-0.54

Hydrophobic Moment 1.07

Boman Index-0.42

Instability Index26.63

Aliphatic Index 117.89

Aromaticity 0.1053

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 954.96

LogP -3.18

H-bond Donors 36.0

H-bond Acceptors 30.0

Rotatable Bonds 92.0

Heavy Atoms 170.0

Ring Count 2.0

Amide Bonds 18.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0233814 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

TargetBacillus subtilis KCTC 3068

Activity2 μM

MethodMIC

RECORD: Rec_0242264 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

TargetEscherichia coli KCTC 1682

Activity8 μM

MethodMIC

RECORD: Rec_0280719 VERIFIED: YES

Provenance & Taxonomy

OrganismSynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configtopology not specified [Not included yet]

Chiralitystereochemistry not specified [Other]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative Hemolytic

PaperProkaryotic selectivity and LPS-neutralizing activity of short antimicrobial peptides designed from the human antimicrobial peptide LL-37. Peptides. 2012 Jun;35(2):239-247. doi: 10.1016/j.peptides.2012.04.004. PMID: 22521196. PMID22521196 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/22521196/

RECORD: Rec_0294458 VERIFIED: YES

Provenance & Taxonomy

OrganismSynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configtopology not specified [Not included yet]

Chiralitystereochemistry not specified [Other]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

PaperProkaryotic selectivity and LPS-neutralizing activity of short antimicrobial peptides designed from the human antimicrobial peptide LL-37. Peptides. 2012 Jun;35(2):239-247. doi: 10.1016/j.peptides.2012.04.004. PMID: 22521196. PMID22521196 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/22521196/

RECORD: Rec_0304374 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

FamilyCathelicidin

Tax ID32630

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

TargetStaphylococcus epidermidis KCTC 1917

Activity4 μM

MethodMIC

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