Peptide Database

Peptide NameRelaxin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length20 amino acids

Chemical FormulaC99H155N31O23S2

DescriptionStandard

        QLCGRGFIRAIIFACGGSRW
    

Molecular Weight2211.61 Da

Isoelectric Point (pI)10.41

Net Charge (pH 7.0)2.74

Net Charge (pH 7.4) 2.51

Charge Density (pH 7.0) 0.1370

GRAVY Index0.56

Hydrophobic Moment 0.64

Boman Index0.18

Instability Index71.67

Aliphatic Index 88.00

Aromaticity 0.1500

Extinction Coeff. Reduced 5500.00

Extinction Coeff. Oxidized 5625.00

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

Amino Acid Composition

TPSA 881.03

LogP -7.52

H-bond Donors 35.0

H-bond Acceptors 28.0

Rotatable Bonds 71.0

Heavy Atoms 155.0

Ring Count 4.0

Amide Bonds 20.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0235223 VERIFIED: YES

Provenance & Taxonomy

OrganismCarcharias taurus [Animal]

FamilyRelaxin

Tax ID30501

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