Peptide Database

Peptide NameCecropin B

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Standard StatusStandard

Sequence Length36 amino acids

Chemical FormulaC174H292N54O44S

DescriptionStandard

        RWKGFKKIEKLGRHIRDGVVKAGPAVGVVGQASSIM
    

Molecular Weight3876.58 Da

Isoelectric Point (pI)11.12

Net Charge (pH 7.0)5.85

Net Charge (pH 7.4) 5.58

Charge Density (pH 7.0) 0.1624

GRAVY Index-0.13

Hydrophobic Moment 0.87

Boman Index-0.01

Instability Index49.33

Aliphatic Index 91.94

Aromaticity 0.0556

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 1591.45

LogP -14.11

H-bond Donors 57.0

H-bond Acceptors 52.0

Rotatable Bonds 134.0

Heavy Atoms 273.0

Ring Count 5.0

Amide Bonds 36.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0106785 VERIFIED: YES

Provenance & Taxonomy

OrganismPlutella xylostella [Animal]

FamilyCecropin

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Anti-Gram-negative

TargetEscherichia coli TOP10

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