Peptide Database

Peptide NameAlpha-S1-casein (80-103)

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-positive

Standard StatusStandard

Sequence Length24 amino acids

Chemical FormulaC134H219N37O38

DescriptionStandard

        HIQKEDVPSERYLGYLEQLLRLKK
    

Molecular Weight2956.40 Da

Isoelectric Point (pI)8.39

Net Charge (pH 7.0)0.85

Net Charge (pH 7.4) 0.59

Charge Density (pH 7.0) 0.0355

GRAVY Index-0.94

Hydrophobic Moment 0.68

Boman Index-0.25

Instability Index65.83

Aliphatic Index 109.58

Aromaticity 0.0833

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 2980.00

The radar chart summarizes major physicochemical dimensions for quick comparison, while exact numerical values remain listed on the left.

Amino Acid Composition

TPSA 1250.44

LogP -8.01

H-bond Donors 43.0

H-bond Acceptors 40.0

Rotatable Bonds 103.0

Heavy Atoms 209.0

Ring Count 4.0

Amide Bonds 25.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0005268 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 Antibacterial

TargetEscherichia coli ATCC 25922

RECORD: Rec_0019175 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 Antibacterial

TargetBacillus subtilis ATCC 6051

Activity550 μg/mL

MethodMIC

RECORD: Rec_0034104 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 Antibacterial

TargetEscherichia coli NEB5alpha

RECORD: Rec_0216794 VERIFIED: YES

Provenance & Taxonomy

OrganismBos taurus [Animal]

FamilyCasein-derived peptide

Tax ID9913

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Antimicrobial Antibacterial Anti-Gram-positive

TargetBacillus subtilis

Activity186 μM

MethodMIC

RECORD: Rec_0252620 VERIFIED: YES

Provenance & Taxonomy

OrganismBos taurus [Animal]

Familyalpha-S1-Casein-derived

Tax ID9913

Structure & Mods

Configsynthetic linear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

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

TargetEscherichia coli; Bacillus subtilis

Activity4 μM

MethodMIC