Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length30 amino acids

Chemical FormulaC146H216N38O43S2

DescriptionStandard

        ASTQHLCGSHLVEALYLVCGSNGFFFNPKD
    

Molecular Weight3255.64 Da

Isoelectric Point (pI)6.02

Net Charge (pH 7.0)-1.04

Net Charge (pH 7.4) -1.37

Charge Density (pH 7.0) -0.0348

GRAVY Index0.19

Hydrophobic Moment 0.33

Boman Index0.22

Instability Index1.18

Aliphatic Index 78.00

Aromaticity 0.1333

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1615.00

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

Amino Acid Composition

TPSA 1286.83

LogP -13.30

H-bond Donors 45.0

H-bond Acceptors 46.0

Rotatable Bonds 102.0

Heavy Atoms 229.0

Ring Count 7.0

Amide Bonds 32.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0266718 VERIFIED: YES

Provenance & Taxonomy

OrganismAnguilla rostrata [Animal]

FamilyInsulin

Tax ID7938

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation

Half-LifeMammalian: 4.4 hour; Yeast: >20 hour; E. coli: >10 hour