Peptide Database

Peptide NameCecropin A

Function Ontology

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Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC183H306N52O48

DescriptionStandard

        KWNPFKKLEKVGQNIRDGIIKAGPAVQVIGQAASIVK
    

Molecular Weight4002.71 Da

Isoelectric Point (pI)10.30

Net Charge (pH 7.0)4.76

Net Charge (pH 7.4) 4.54

Charge Density (pH 7.0) 0.1286

GRAVY Index-0.16

Hydrophobic Moment 0.74

Boman Index0.04

Instability Index13.93

Aliphatic Index 105.41

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 1637.43

LogP -13.75

H-bond Donors 54.0

H-bond Acceptors 53.0

Rotatable Bonds 138.0

Heavy Atoms 283.0

Ring Count 5.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0170777 VERIFIED: YES

Provenance & Taxonomy

OrganismPapilio xuthus [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)