Peptide Database

Peptide NameSIFamide 4

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length12 amino acids

Chemical FormulaC66H95N17O18

DescriptionStandard

        GYRKPPYNGSIY
    

Molecular Weight1414.56 Da

Isoelectric Point (pI)9.53

Net Charge (pH 7.0)1.76

Net Charge (pH 7.4) 1.55

Charge Density (pH 7.0) 0.1463

GRAVY Index-1.34

Hydrophobic Moment 0.22

Boman Index-0.14

Instability Index-14.76

Aliphatic Index 32.50

Aromaticity 0.2500

Extinction Coeff. Reduced 4470.00

Extinction Coeff. Oxidized 4470.00

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

Amino Acid Composition

TPSA 577.77

LogP -4.84

H-bond Donors 20.0

H-bond Acceptors 20.0

Rotatable Bonds 40.0

Heavy Atoms 101.0

Ring Count 5.0

Amide Bonds 12.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0200748 VERIFIED: NO

Provenance & Taxonomy

OrganismPanulirus interruptus [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide