Peptide Database

Peptide NameSIFamide

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length13 amino acids

Chemical FormulaC79H113N21O16

DescriptionStandard

        ARYRKPPFNGFIF
    

Molecular Weight1612.87 Da

Isoelectric Point (pI)11.00

Net Charge (pH 7.0)2.79

Net Charge (pH 7.4) 2.60

Charge Density (pH 7.0) 0.2149

GRAVY Index-0.51

Hydrophobic Moment 0.35

Boman Index-0.06

Instability Index2.69

Aliphatic Index 37.69

Aromaticity 0.3077

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 608.08

LogP -2.87

H-bond Donors 21.0

H-bond Acceptors 19.0

Rotatable Bonds 47.0

Heavy Atoms 116.0

Ring Count 6.0

Amide Bonds 13.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0393675 VERIFIED: NO

Provenance & Taxonomy

OrganismHyalella azteca [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide