Peptide Database

Peptide NameProbable insulin-like peptide 4 A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Metabolic ▸ Appetite and feeding regulation ▸ Feeding regulator

Regulatory peptide ▸ Biological modulation

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC94H141N23O34S4

DescriptionStandard

        IAHECCKEGCTYDDILDYCA
    

Molecular Weight2265.52 Da

Isoelectric Point (pI)4.10

Net Charge (pH 7.0)-4.19

Net Charge (pH 7.4) -4.51

Charge Density (pH 7.0) -0.2093

GRAVY Index-0.10

Hydrophobic Moment 0.37

Boman Index0.05

Instability Index65.00

Aliphatic Index 68.50

Aromaticity 0.1000

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3230.00

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

Amino Acid Composition

TPSA 918.11

LogP -8.34

H-bond Donors 35.0

H-bond Acceptors 35.0

Rotatable Bonds 72.0

Heavy Atoms 155.0

Ring Count 3.0

Amide Bonds 19.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0184197 VERIFIED: YES

Provenance & Taxonomy

OrganismDrosophila melanogaster [Animal]

FamilyProbable insulin-like peptide

Tax ID7227

Structure & Mods

Configlinear peptide with reported disulfide constraint [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide5-10

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation Receptor modulation Feeding regulator

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