Peptide Database

Peptide NameCecropin A

Function Ontology

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Standard StatusStandard

Sequence Length32 amino acids

Chemical FormulaC160H271N49O39

DescriptionStandard

        RWKIFKKIEKVGRNVRDGIIKAGPAVAVVGQA
    

Molecular Weight3505.17 Da

Isoelectric Point (pI)11.12

Net Charge (pH 7.0)5.76

Net Charge (pH 7.4) 5.55

Charge Density (pH 7.0) 0.1800

GRAVY Index-0.07

Hydrophobic Moment 0.93

Boman Index-0.03

Instability Index27.93

Aliphatic Index 106.56

Aromaticity 0.0625

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 1449.00

LogP -11.12

H-bond Donors 51.0

H-bond Acceptors 45.0

Rotatable Bonds 121.0

Heavy Atoms 248.0

Ring Count 4.0

Amide Bonds 33.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0381207 VERIFIED: YES

Provenance & Taxonomy

OrganismPapilio xuthus [Animal]

FamilyCecropin

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

-

TargetEscherichia coli TOP10

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