Peptide Database

Peptide NameProbable insulin-like peptide 3 A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Sleep regulation

Regulatory peptide ▸ Biological modulation

Regulatory peptide ▸ Biological regulation

Reproductive biology ▸ Reproductive modulation

Standard StatusStandard

Sequence Length29 amino acids

Chemical FormulaC139H228N40O44S5

DescriptionStandard

        LRDGVFDECCLKSCTMDEVLRYCAAKPRT
    

Molecular Weight3323.86 Da

Isoelectric Point (pI)6.21

Net Charge (pH 7.0)-0.27

Net Charge (pH 7.4) -0.54

Charge Density (pH 7.0) -0.0094

GRAVY Index-0.21

Hydrophobic Moment 0.49

Boman Index-0.16

Instability Index60.74

Aliphatic Index 67.24

Aromaticity 0.0690

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1740.00

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

Amino Acid Composition

TPSA 1374.49

LogP -13.78

H-bond Donors 53.0

H-bond Acceptors 49.0

Rotatable Bonds 110.0

Heavy Atoms 228.0

Ring Count 3.0

Amide Bonds 28.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0099218 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]

Disulfide9-14

Bio-Activity Profile

Function

Hormone Endocrine Reproductive regulator Receptor modulation Sleep regulation Wake regulation

Half-LifeMammalian: 5.5 hour; Yeast: 3 min; E. coli: 2 min