Peptide Database

Peptide NamePeptide SIFamide

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length11 amino acids

Chemical FormulaC64H92N16O14

DescriptionStandard

        FRKPPFNGSIF
    

Molecular Weight1309.51 Da

Isoelectric Point (pI)11.00

Net Charge (pH 7.0)1.76

Net Charge (pH 7.4) 1.55

Charge Density (pH 7.0) 0.1599

GRAVY Index-0.31

Hydrophobic Moment 0.26

Boman Index0.06

Instability Index23.59

Aliphatic Index 35.45

Aromaticity 0.2727

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

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

Amino Acid Composition

TPSA 487.98

LogP -3.08

H-bond Donors 16.0

H-bond Acceptors 16.0

Rotatable Bonds 38.0

Heavy Atoms 94.0

Ring Count 5.0

Amide Bonds 11.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0312961 VERIFIED: NO

Provenance & Taxonomy

OrganismAcyrthosiphon pisum [Animal]

Tax ID7029

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide