Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length30 amino acids

Chemical FormulaC158H233N37O39S2

DescriptionStandard

        LPSQHLCGSHLVEALYFVCGPKGFYYLPKA
    

Molecular Weight3338.89 Da

Isoelectric Point (pI)8.03

Net Charge (pH 7.0)0.91

Net Charge (pH 7.4) 0.57

Charge Density (pH 7.0) 0.0304

GRAVY Index0.30

Hydrophobic Moment 0.48

Boman Index0.28

Instability Index47.50

Aliphatic Index 91.00

Aromaticity 0.1667

Extinction Coeff. Reduced 4470.00

Extinction Coeff. Oxidized 4595.00

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

Amino Acid Composition

TPSA 1171.79

LogP -6.05

H-bond Donors 41.0

H-bond Acceptors 44.0

Rotatable Bonds 100.0

Heavy Atoms 236.0

Ring Count 10.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0239353 VERIFIED: YES

Provenance & Taxonomy

OrganismTorpedo marmorata [Animal]

FamilyInsulin

Tax ID7788

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation

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