Peptide Database

Peptide NameKunitzin-OS

Function Ontology

Antimicrobial

Antimicrobial ▸ Antibacterial

Antimicrobial ▸ Antibacterial ▸ Anti-Gram-negative

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

Standard StatusStandard

Sequence Length17 amino acids

Chemical FormulaC88H141N25O19S2

DescriptionStandard

        AVNIPFKVHLRCKAAFC
    

Molecular Weight1917.35 Da

Isoelectric Point (pI)9.51

Net Charge (pH 7.0)2.86

Net Charge (pH 7.4) 2.59

Charge Density (pH 7.0) 0.1683

GRAVY Index0.71

Hydrophobic Moment 0.38

Boman Index0.17

Instability Index42.39

Aliphatic Index 97.65

Aromaticity 0.1176

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 125.00

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

Amino Acid Composition

TPSA 705.84

LogP -4.17

H-bond Donors 26.0

H-bond Acceptors 25.0

Rotatable Bonds 60.0

Heavy Atoms 134.0

Ring Count 4.0

Amide Bonds 17.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0388759 VERIFIED: YES

Provenance & Taxonomy

OrganismOdorrana schmackeri [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Enzyme inhibitory

Targettrypsin

Activity7.56 μM

MethodKi

RECORD: Rec_0420676 VERIFIED: YES

Provenance & Taxonomy

OrganismChinese frog,Odorrana schmackeri [Animal]

Structure & Mods

Configtopology not specified [Not included yet]

Chiralitystereochemistry not specified [Other]

Bio-Activity Profile

Function

Antibacterial Enzyme Inhibitor Anti-Gram-negative Antimicrobial

TargetEscherichia coli

Activity20 μM

MethodMIC

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