Peptide Database

Peptide NameRelaxin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length31 amino acids

Chemical FormulaC154H246N48O44S2

DescriptionStandard

        QRTNDFIKACGRELVRVWVEICGSVSWGRTA
    

Molecular Weight3538.03 Da

Isoelectric Point (pI)8.95

Net Charge (pH 7.0)1.75

Net Charge (pH 7.4) 1.51

Charge Density (pH 7.0) 0.0563

GRAVY Index-0.14

Hydrophobic Moment 0.77

Boman Index-0.06

Instability Index13.96

Aliphatic Index 81.61

Aromaticity 0.0968

Extinction Coeff. Reduced 11000.00

Extinction Coeff. Oxidized 11125.00

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

Amino Acid Composition

TPSA 1520.52

LogP -15.54

H-bond Donors 58.0

H-bond Acceptors 48.0

Rotatable Bonds 116.0

Heavy Atoms 248.0

Ring Count 5.0

Amide Bonds 32.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0201857 VERIFIED: NO

Provenance & Taxonomy

OrganismPhocoenoides dalli dalli [Animal]

FamilyRelaxin

Tax ID9745

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