Peptide Database

Peptide NameFK4

Function Ontology

Antimicrobial

Standard StatusStandard

Sequence Length18 amino acids

Chemical FormulaC128H184N26O19

DescriptionStandard

        GFFKKFFKKFFKKFFKKI
    

Molecular Weight2390.99 Da

Isoelectric Point (pI)10.85

Net Charge (pH 7.0)7.75

Net Charge (pH 7.4) 7.54

Charge Density (pH 7.0) 0.4307

GRAVY Index-0.26

Hydrophobic Moment 0.83

Boman Index-0.03

Instability Index-28.67

Aliphatic Index 21.67

Aromaticity 0.4444

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 766.18

LogP 2.29

H-bond Donors 27.0

H-bond Acceptors 27.0

Rotatable Bonds 85.0

Heavy Atoms 173.0

Ring Count 8.0

Amide Bonds 17.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0322817 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial

TargetKlebsiella pneumoniae ATCC 700603

Activity8 μM

MethodMIC

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