Peptide Database

Peptide NameCecropin A

Function Ontology

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Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC184H313N53O46

DescriptionStandard

        KWKIFKKIERVGQNIRDGIIKAGPAVAVVGQAASIIK
    

Molecular Weight4003.78 Da

Isoelectric Point (pI)10.66

Net Charge (pH 7.0)5.76

Net Charge (pH 7.4) 5.54

Charge Density (pH 7.0) 0.1556

GRAVY Index0.14

Hydrophobic Moment 0.91

Boman Index0.07

Instability Index18.56

Aliphatic Index 118.65

Aromaticity 0.0541

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5500.00

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

Amino Acid Composition

TPSA 1621.94

LogP -12.07

H-bond Donors 56.0

H-bond Acceptors 52.0

Rotatable Bonds 140.0

Heavy Atoms 283.0

Ring Count 4.0

Amide Bonds 39.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0360257 VERIFIED: YES

Provenance & Taxonomy

OrganismPapilio polytes [Animal]

FamilyCecropin

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

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TargetEscherichia coli TOP10

MethodMex pooled growth assay (OD_ID at 4.5 h; Wald adjusted p-value)