Peptide Database

Peptide NameMolluscan insulin-related peptide III

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length24 amino acids

Chemical FormulaC114H180N30O38S5

DescriptionStandard

        ESRPSIVCECCFNQCTVQELLAYC
    

Molecular Weight2739.15 Da

Isoelectric Point (pI)4.25

Net Charge (pH 7.0)-2.21

Net Charge (pH 7.4) -2.46

Charge Density (pH 7.0) -0.0920

GRAVY Index0.29

Hydrophobic Moment 0.24

Boman Index0.07

Instability Index71.78

Aliphatic Index 77.08

Aromaticity 0.0833

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1740.00

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

Amino Acid Composition

TPSA 1107.82

LogP -12.01

H-bond Donors 42.0

H-bond Acceptors 41.0

Rotatable Bonds 87.0

Heavy Atoms 187.0

Ring Count 3.0

Amide Bonds 26.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0153074 VERIFIED: YES

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyMolluscan insulin-related peptide

Tax ID6523

Structure & Mods

Configdisulfide-constrained peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide10-15

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 1 hour; Yeast: 30 min; E. coli: >10 hour