Peptide Database

Peptide NameFK-21

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-positive

Standard StatusStandard

Sequence Length21 amino acids

Chemical FormulaC118H199N37O30

DescriptionStandard

        FKRIVQRIKDFLRNLVPRTES
    

Molecular Weight2616.07 Da

Isoelectric Point (pI)11.55

Net Charge (pH 7.0)3.76

Net Charge (pH 7.4) 3.55

Charge Density (pH 7.0) 0.1791

GRAVY Index-0.59

Hydrophobic Moment 0.97

Boman Index-0.34

Instability Index45.19

Aliphatic Index 101.90

Aromaticity 0.0952

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 1137.41

LogP -9.25

H-bond Donors 41.0

H-bond Acceptors 34.0

Rotatable Bonds 90.0

Heavy Atoms 185.0

Ring Count 3.0

Amide Bonds 22.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0097544 VERIFIED: YES

Provenance & Taxonomy

OrganismSynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial

TargetEscherichia coli

Activity1.1 μg/mL

MethodMBC

RECORD: Rec_0200484 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermNone

C-TermNone

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

TargetStreptococcus pneumoniae

Activity250 μg/mL

MethodMIC

RECORD: Rec_0210609 VERIFIED: YES

Provenance & Taxonomy

Organismsynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermNone

C-TermNone

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive Anti-Gram-negative

TargetStaphylococcus aureus ATCC 25923

Activity1000 μg/mL

MethodMIC

RECORD: Rec_0256341 VERIFIED: YES

Provenance & Taxonomy

OrganismSynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial

TargetPseudomonas aeruginosa

Activity1.6 μg/mL

MethodMBC

RECORD: Rec_0278069 VERIFIED: YES

Provenance & Taxonomy

OrganismSynthetic construct [Synthetic]

Tax ID32630

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial

TargetEnterococcus faecalis

Activity4.5 μg/mL

MethodMBC