Peptide Database

Peptide NameRelaxin B chain

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Metabolic

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length26 amino acids

Chemical FormulaC130H213N39O37S2

DescriptionStandard

        QEEVLKACGREFVRLQIRICGSLSWG
    

Molecular Weight2978.45 Da

Isoelectric Point (pI)8.06

Net Charge (pH 7.0)0.75

Net Charge (pH 7.4) 0.51

Charge Density (pH 7.0) 0.0288

GRAVY Index-0.01

Hydrophobic Moment 0.75

Boman Index-0.02

Instability Index51.75

Aliphatic Index 101.15

Aromaticity 0.0769

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 1256.87

LogP -11.17

H-bond Donors 47.0

H-bond Acceptors 40.0

Rotatable Bonds 102.0

Heavy Atoms 208.0

Ring Count 3.0

Amide Bonds 27.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0203920 VERIFIED: NO

Provenance & Taxonomy

OrganismFelis catus [Animal]

FamilyInsulin

Tax ID9685

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

N-TermPyroglutamate

Bio-Activity Profile

Function

Hormone Metabolic

RECORD: Rec_0351933 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_0398391 VERIFIED: YES

Provenance & Taxonomy

OrganismFelis catus [Animal]

FamilyRelaxin

Tax ID9685

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Hormone Endocrine

Half-LifeMammalian: 0.8 hour; Yeast: 10 min; E. coli: >10 hour