Peptide Database

Peptide NameSerine proteinase inhibitor PI-9

Function Ontology

Other / Curated residual function label ▸ Generic enzyme inhibition annotation

Standard StatusStandard

Sequence Length41 amino acids

Chemical FormulaC174H291N55O65S6

DescriptionStandard

        STREVSCTPGATYKEDCNICRCRSDGKSGACTKKSCPVVED
    

Molecular Weight4385.89 Da

Isoelectric Point (pI)7.52

Net Charge (pH 7.0)0.41

Net Charge (pH 7.4) 0.10

Charge Density (pH 7.0) 0.0100

GRAVY Index-0.74

Hydrophobic Moment 0.41

Boman Index-0.26

Instability Index86.29

Aliphatic Index 35.61

Aromaticity 0.0244

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1865.00

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

Amino Acid Composition

TPSA 1968.71

LogP -30.04

H-bond Donors 76.0

H-bond Acceptors 72.0

Rotatable Bonds 146.0

Heavy Atoms 300.0

Ring Count 3.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0419715 VERIFIED: NO

Provenance & Taxonomy

OrganismLocusta migratoria [Animal]

Tax ID7004

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Enzyme inhibitory