Peptide Database

Peptide NameInsulin-like 3 B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological modulation

Standard StatusStandard

Sequence Length40 amino acids

Chemical FormulaC187H294N62O58S2

DescriptionStandard

        QEAPEKLCGHHFVRALVRLCGGPRWSSEEDGRPVAGGDRE
    

Molecular Weight4402.85 Da

Isoelectric Point (pI)6.09

Net Charge (pH 7.0)-1.06

Net Charge (pH 7.4) -1.41

Charge Density (pH 7.0) -0.0266

GRAVY Index-0.83

Hydrophobic Moment 0.77

Boman Index-0.19

Instability Index67.95

Aliphatic Index 58.50

Aromaticity 0.0500

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5625.00

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

Amino Acid Composition

TPSA 1925.17

LogP -21.49

H-bond Donors 69.0

H-bond Acceptors 61.0

Rotatable Bonds 143.0

Heavy Atoms 309.0

Ring Count 8.0

Amide Bonds 40.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0231508 VERIFIED: YES

Provenance & Taxonomy

OrganismBos taurus [Animal]

FamilyInsulin-like

Tax ID9913

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermPyroglutamate

Bio-Activity Profile

Function

Hormone Endocrine Receptor modulation

Half-LifeMammalian: 0.8 hour; Yeast: 10 min; E. coli: >10 hour