Peptide Database

Peptide NameRelaxin A chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Metabolic

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length24 amino acids

Chemical FormulaC113H183N35O39S4

DescriptionStandard

        SDYIRYSDRCCNVGCTRKELADLC
    

Molecular Weight2784.13 Da

Isoelectric Point (pI)5.88

Net Charge (pH 7.0)-0.58

Net Charge (pH 7.4) -0.85

Charge Density (pH 7.0) -0.0240

GRAVY Index-0.50

Hydrophobic Moment 0.66

Boman Index-0.27

Instability Index9.81

Aliphatic Index 65.00

Aromaticity 0.0833

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 3230.00

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

Amino Acid Composition

TPSA 1237.78

LogP -14.94

H-bond Donors 49.0

H-bond Acceptors 43.0

Rotatable Bonds 92.0

Heavy Atoms 191.0

Ring Count 2.0

Amide Bonds 24.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0049827 VERIFIED: YES

Provenance & Taxonomy

OrganismFelis catus [Animal]

FamilyRelaxin

Tax ID9685

Structure & Mods

Configlinear peptide with reported disulfide constraint [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Disulfide10-15

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 1.9 hour; Yeast: >20 hour; E. coli: >10 hour

RECORD: Rec_0228075 VERIFIED: YES

Provenance & Taxonomy

Organismnot reported [other]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide

Paper数据库级溯源文献：Wang Y, Wang M, Yin S, et al. NeuroPep: a comprehensive resource of neuropeptides. Database (Oxford). 2015:bav038. PMID 25931458; Bin Y, Zhang W, Tang W, et al. Prediction of Neuropeptides from Sequence Information Using Ensemble Classifier and Hybrid Features. J Proteome Res. 2020;19(9):3732-3740. PMID 32786686. PMID25931458;32786686 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/25931458/

RECORD: Rec_0265841 VERIFIED: NO

Provenance & Taxonomy

OrganismFelis catus [Animal]

FamilyInsulin

Tax ID9685

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Metabolic