Peptide Database

Peptide NameSPI1B

Function Ontology

Antimicrobial

Standard StatusStandard

Sequence Length83 amino acids

Chemical FormulaC381H622N110O112S11

DescriptionStandard

        MADKGVGSRLSALFLLVLLVISIGMMQLEPAEGRTCKTPSGKFKGVCASRNNCKNVCQTEGFPSGSCDFHVANRKCYCSKPCP
    

Molecular Weight8888.40 Da

Isoelectric Point (pI)9.04

Net Charge (pH 7.0)5.51

Net Charge (pH 7.4) 5.11

Charge Density (pH 7.0) 0.0664

GRAVY Index-0.02

Hydrophobic Moment 0.45

Boman Index0.02

Instability Index26.80

Aliphatic Index 69.28

Aromaticity 0.0602

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1990.00

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

Amino Acid Composition

TPSA 3551.79

LogP -41.62

H-bond Donors 130.0

H-bond Acceptors 130.0

Rotatable Bonds 295.0

Heavy Atoms 614.0

Ring Count 11.0

Amide Bonds 88.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0042892 VERIFIED: YES

Provenance & Taxonomy

OrganismPicea abies [Plant]; Picea excelsa [Plant]

FamilyDefensin

Structure & Mods

Configdisulfide-constrained cyclic peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfidemultiple disulfide bonds reported, sites not specified

Bio-Activity Profile

Function

-

RECORD: Rec_0339581 VERIFIED: YES