Peptide Database

Peptide NameProbable insulin-like peptide 4 B 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 Length22 amino acids

Chemical FormulaC104H177N31O30S3

DescriptionStandard

        RRKMCGEALIQALDVICVNGFT
    

Molecular Weight2437.90 Da

Isoelectric Point (pI)8.06

Net Charge (pH 7.0)0.74

Net Charge (pH 7.4) 0.51

Charge Density (pH 7.0) 0.0338

GRAVY Index0.45

Hydrophobic Moment 0.46

Boman Index0.08

Instability Index36.71

Aliphatic Index 106.36

Aromaticity 0.0455

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 125.00

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

Amino Acid Composition

TPSA 1005.25

LogP -9.25

H-bond Donors 37.0

H-bond Acceptors 34.0

Rotatable Bonds 83.0

Heavy Atoms 168.0

Ring Count 1.0

Amide Bonds 23.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0376264 VERIFIED: YES

Provenance & Taxonomy

OrganismDrosophila melanogaster [Animal]

FamilyProbable insulin-like peptide

Tax ID7227

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation Receptor modulation Feeding regulator

Half-LifeMammalian: 1 hour; Yeast: 2 min; E. coli: 2 min