Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length30 amino acids

Chemical FormulaC152H233N43O42S2

DescriptionStandard

        APNQRLCGSHLVEALFLICGERGFYYSPRT
    

Molecular Weight3398.87 Da

Isoelectric Point (pI)8.09

Net Charge (pH 7.0)0.87

Net Charge (pH 7.4) 0.59

Charge Density (pH 7.0) 0.0289

GRAVY Index-0.06

Hydrophobic Moment 0.57

Boman Index0.05

Instability Index35.34

Aliphatic Index 81.33

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 1365.95

LogP -12.48

H-bond Donors 50.0

H-bond Acceptors 46.0

Rotatable Bonds 106.0

Heavy Atoms 239.0

Ring Count 7.0

Amide Bonds 31.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0061647 VERIFIED: YES

Provenance & Taxonomy

OrganismPtyas dhumnades [Animal]

FamilyInsulin

Tax ID8587

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