Peptide Database

Peptide NameSIFamide 2, SIFa2

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length13 amino acids

Chemical FormulaC71H104N18O18

DescriptionStandard

        ATYRKPPFNGSIF
    

Molecular Weight1497.70 Da

Isoelectric Point (pI)9.99

Net Charge (pH 7.0)1.79

Net Charge (pH 7.4) 1.60

Charge Density (pH 7.0) 0.1380

GRAVY Index-0.49

Hydrophobic Moment 0.21

Boman Index0.02

Instability Index8.49

Aliphatic Index 37.69

Aromaticity 0.2308

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 586.64

LogP -5.00

H-bond Donors 20.0

H-bond Acceptors 20.0

Rotatable Bonds 43.0

Heavy Atoms 107.0

Ring Count 5.0

Amide Bonds 13.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0349431 VERIFIED: NO

Provenance & Taxonomy

OrganismAtelura formicaria [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide