Peptide Database

Peptide NameRelaxin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length40 amino acids

Chemical FormulaC216H332N66O55S3

DescriptionStandard

        RPNWEERSRLCGRDLIRAFIYLCGGTRWTRLPNFGNYPIM
    

Molecular Weight4829.55 Da

Isoelectric Point (pI)10.07

Net Charge (pH 7.0)3.75

Net Charge (pH 7.4) 3.51

Charge Density (pH 7.0) 0.0936

GRAVY Index-0.56

Hydrophobic Moment 0.72

Boman Index-0.14

Instability Index49.47

Aliphatic Index 70.75

Aromaticity 0.1500

Extinction Coeff. Reduced 13980.00

Extinction Coeff. Oxidized 14105.00

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

Amino Acid Composition

TPSA 1979.05

LogP -16.44

H-bond Donors 74.0

H-bond Acceptors 62.0

Rotatable Bonds 152.0

Heavy Atoms 340.0

Ring Count 11.0

Amide Bonds 42.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0280606 VERIFIED: YES

Provenance & Taxonomy

OrganismLeucoraja erinacea [Animal]

FamilyRelaxin

Tax ID7782

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 1 hour; Yeast: 2 min; E. coli: 2 min