Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length30 amino acids

Chemical FormulaC155H233N39O39S2

DescriptionStandard

        VVPPQHLCGAHLVDALYLVCGERGFFYTPK
    

Molecular Weight3330.88 Da

Isoelectric Point (pI)6.88

Net Charge (pH 7.0)-0.11

Net Charge (pH 7.4) -0.46

Charge Density (pH 7.0) -0.0037

GRAVY Index0.39

Hydrophobic Moment 0.42

Boman Index0.26

Instability Index20.95

Aliphatic Index 97.33

Aromaticity 0.1333

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3105.00

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

Amino Acid Composition

TPSA 1204.51

LogP -6.73

H-bond Donors 42.0

H-bond Acceptors 43.0

Rotatable Bonds 99.0

Heavy Atoms 235.0

Ring Count 9.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0255636 VERIFIED: YES

Provenance & Taxonomy

OrganismPlatichthys flesus [Animal]

FamilyInsulin

Tax ID8260

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation

Half-LifeMammalian: 100 hour; Yeast: >20 hour; E. coli: >10 hour