Peptide Database

Peptide NameSIFamide

Function Ontology

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length10 amino acids

Chemical FormulaC51H75N15O14

DescriptionStandard

        GYRKPPFNGS
    

Molecular Weight1122.23 Da

Isoelectric Point (pI)9.99

Net Charge (pH 7.0)1.76

Net Charge (pH 7.4) 1.55

Charge Density (pH 7.0) 0.1758

GRAVY Index-1.52

Hydrophobic Moment 0.25

Boman Index-0.23

Instability Index-0.45

Aliphatic Index 0.00

Aromaticity 0.2000

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 479.11

LogP -5.51

H-bond Donors 16.0

H-bond Acceptors 16.0

Rotatable Bonds 32.0

Heavy Atoms 80.0

Ring Count 4.0

Amide Bonds 10.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0098405 VERIFIED: YES

Provenance & Taxonomy

OrganismPenaeus monodon [Animal]

FamilySIFamide

Tax ID6687

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide Neuromodulator

Half-LifeMammalian: 30 hour; Yeast: >20 hour; E. coli: >10 hour

RECORD: Rec_0195882 VERIFIED: YES