Peptide Database

Peptide NameSIFamide II

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length8 amino acids

Chemical FormulaC44H63N9O12

DescriptionStandard

        LPFNGSIY
    

Molecular Weight910.02 Da

Isoelectric Point (pI)5.52

Net Charge (pH 7.0)-0.24

Net Charge (pH 7.4) -0.45

Charge Density (pH 7.0) -0.0301

GRAVY Index0.44

Hydrophobic Moment 0.10

Boman Index0.44

Instability Index38.11

Aliphatic Index 97.50

Aromaticity 0.2500

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1490.00

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

Amino Acid Composition

TPSA 341.78

LogP -1.92

H-bond Donors 11.0

H-bond Acceptors 12.0

Rotatable Bonds 25.0

Heavy Atoms 65.0

Ring Count 3.0

Amide Bonds 8.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0197851 VERIFIED: NO

Provenance & Taxonomy

OrganismMastotermes darwiniensis [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide