Peptide Database

Peptide NameSulfakinin-1

Function Ontology

Gastrointestinal bioactivity

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length18 amino acids

Chemical FormulaC74H106N20O28

DescriptionStandard

        AGGSGGVGGEYDDYGHLI
    

Molecular Weight1723.75 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-3.11

Net Charge (pH 7.4) -3.36

Charge Density (pH 7.0) -0.1730

GRAVY Index-0.31

Hydrophobic Moment 0.26

Boman Index0.27

Instability Index29.54

Aliphatic Index 65.00

Aromaticity 0.1111

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 2980.00

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

Amino Acid Composition

TPSA 759.29

LogP -9.50

H-bond Donors 26.0

H-bond Acceptors 26.0

Rotatable Bonds 54.0

Heavy Atoms 122.0

Ring Count 3.0

Amide Bonds 17.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0416737 VERIFIED: YES

Provenance & Taxonomy

OrganismLitopenaeus vannamei [Animal]

FamilyGastrin/cholecystokinin

Tax ID6689

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Gastrointestinal Neuropeptide