Peptide Database

Peptide NameRelaxin A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length24 amino acids

Chemical FormulaC107H183N27O33S5

DescriptionStandard

        ATSPAMSIKCCIYGCTKKDISVLC
    

Molecular Weight2536.08 Da

Isoelectric Point (pI)8.51

Net Charge (pH 7.0)1.75

Net Charge (pH 7.4) 1.50

Charge Density (pH 7.0) 0.0731

GRAVY Index0.61

Hydrophobic Moment 0.37

Boman Index0.17

Instability Index60.73

Aliphatic Index 85.42

Aromaticity 0.0417

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1740.00

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

Amino Acid Composition

TPSA 960.57

LogP -10.41

H-bond Donors 38.0

H-bond Acceptors 40.0

Rotatable Bonds 83.0

Heavy Atoms 172.0

Ring Count 2.0

Amide Bonds 23.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0147324 VERIFIED: YES

Provenance & Taxonomy

OrganismCarcharias taurus [Animal]

FamilyRelaxin

Tax ID30501

Structure & Mods

Configdisulfide-constrained peptide [Cyclic]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide10-15

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 4.4 hour; Yeast: >20 hour; E. coli: >10 hour