Peptide Database

Peptide NameSIFamide

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length48 amino acids

Chemical FormulaC235H361N63O72S2

DescriptionStandard

        ATYRKPPFNGSIFGKRGVVEYDSTGRALSALCEIAAETCQAWYLTLDN
    

Molecular Weight5284.89 Da

Isoelectric Point (pI)6.30

Net Charge (pH 7.0)-0.22

Net Charge (pH 7.4) -0.45

Charge Density (pH 7.0) -0.0045

GRAVY Index-0.21

Hydrophobic Moment 0.53

Boman Index0.04

Instability Index22.46

Aliphatic Index 73.33

Aromaticity 0.1250

Extinction Coeff. Reduced 9970.00

Extinction Coeff. Oxidized 10095.00

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

Amino Acid Composition

TPSA 2185.04

LogP -22.55

H-bond Donors 79.0

H-bond Acceptors 74.0

Rotatable Bonds 168.0

Heavy Atoms 372.0

Ring Count 9.0

Amide Bonds 50.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0304132 VERIFIED: NO

Provenance & Taxonomy

OrganismSpodoptera exigua [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide