Peptide Database

Peptide NameInsulin-like peptide B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Regulatory peptide ▸ Biological regulation

Standard StatusStandard

Sequence Length27 amino acids

Chemical FormulaC124H190N34O42S2

DescriptionStandard

        QAEYLCGSTLADVLSFVCGNRGYNSQP
    

Molecular Weight2893.17 Da

Isoelectric Point (pI)4.37

Net Charge (pH 7.0)-1.26

Net Charge (pH 7.4) -1.50

Charge Density (pH 7.0) -0.0466

GRAVY Index-0.10

Hydrophobic Moment 0.38

Boman Index0.09

Instability Index11.32

Aliphatic Index 72.22

Aromaticity 0.1111

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 1241.37

LogP -15.87

H-bond Donors 44.0

H-bond Acceptors 43.0

Rotatable Bonds 91.0

Heavy Atoms 202.0

Ring Count 4.0

Amide Bonds 30.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0414569 VERIFIED: YES

Provenance & Taxonomy

OrganismBranchiostoma californiense [Animal]

FamilyInsulin-like peptide

Tax ID7738

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine Metabolic regulation Physiological regulation

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