Peptide Database

Peptide NameInsulin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length31 amino acids

Chemical FormulaC149H219N39O41S2

DescriptionStandard

        NAGAPQHLCGSHLVDALYLVCGPSGFFYNPK
    

Molecular Weight3276.70 Da

Isoelectric Point (pI)6.90

Net Charge (pH 7.0)-0.09

Net Charge (pH 7.4) -0.43

Charge Density (pH 7.0) -0.0028

GRAVY Index0.15

Hydrophobic Moment 0.34

Boman Index0.26

Instability Index30.32

Aliphatic Index 78.71

Aromaticity 0.1290

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 1240.82

LogP -11.68

H-bond Donors 42.0

H-bond Acceptors 45.0

Rotatable Bonds 97.0

Heavy Atoms 231.0

Ring Count 9.0

Amide Bonds 33.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0108342 VERIFIED: YES

Provenance & Taxonomy

OrganismPiaractus mesopotamicus [Animal]

FamilyInsulin

Tax ID42528

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation

Half-LifeMammalian: 1.4 hour; Yeast: 3 min; E. coli: >10 hour