Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length30 amino acids

Chemical FormulaC151H231N43O42S2

DescriptionStandard

        APNQRLCGSHLVEALFLICGERGFYYSPRS
    

Molecular Weight3384.84 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-0.07

Hydrophobic Moment 0.56

Boman Index0.05

Instability Index49.99

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 -12.87

H-bond Donors 50.0

H-bond Acceptors 46.0

Rotatable Bonds 106.0

Heavy Atoms 238.0

Ring Count 7.0

Amide Bonds 31.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0165891 VERIFIED: YES

Provenance & Taxonomy

OrganismCrotalus atrox [Animal]

FamilyInsulin

Tax ID8730

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