Peptide Database

Peptide NameMolluscan insulin-related peptide 5 A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length25 amino acids

Chemical FormulaC131H191N31O42S5

DescriptionStandard

        QRTTNLVCECCYNVCTVDVFYEYCY
    

Molecular Weight3032.43 Da

Isoelectric Point (pI)4.14

Net Charge (pH 7.0)-2.29

Net Charge (pH 7.4) -2.57

Charge Density (pH 7.0) -0.0915

GRAVY Index0.12

Hydrophobic Moment 0.45

Boman Index0.06

Instability Index38.22

Aliphatic Index 62.00

Aromaticity 0.2000

Extinction Coeff. Reduced 5960.00

Extinction Coeff. Oxidized 6210.00

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

Amino Acid Composition

TPSA 1206.40

LogP -10.99

H-bond Donors 47.0

H-bond Acceptors 45.0

Rotatable Bonds 92.0

Heavy Atoms 209.0

Ring Count 5.0

Amide Bonds 27.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0414810 VERIFIED: YES

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyMolluscan insulin-related peptide

Tax ID6523

Structure & Mods

Configlinear peptide with reported disulfide constraint [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermPyroglutamate

Disulfide10-15

Bio-Activity Profile

Function

Hormone Endocrine

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