Peptide Database

Peptide NameMolluscan insulin-related peptide 2 B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length37 amino acids

Chemical FormulaC161H259N53O52S4

DescriptionStandard

        QSSCSLSSRPHPRGICGSNLAGFRAFICSNQNSPSMV
    

Molecular Weight3897.36 Da

Isoelectric Point (pI)9.31

Net Charge (pH 7.0)2.82

Net Charge (pH 7.4) 2.52

Charge Density (pH 7.0) 0.0761

GRAVY Index-0.22

Hydrophobic Moment 0.45

Boman Index-0.02

Instability Index58.88

Aliphatic Index 55.41

Aromaticity 0.0541

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 125.00

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

Amino Acid Composition

TPSA 1696.45

LogP -26.98

H-bond Donors 62.0

H-bond Acceptors 60.0

Rotatable Bonds 124.0

Heavy Atoms 270.0

Ring Count 6.0

Amide Bonds 41.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0044875 VERIFIED: YES

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyMolluscan insulin-related peptide

Tax ID6523

Structure & Mods

Configlinear peptide [Linear]

Chiralitynoncanonical stereochemical modification [Modified]

N-TermPyroglutamate

Bio-Activity Profile

Function

Hormone Endocrine

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