Peptide Database

Peptide NameQFYRI-amide

Function Ontology

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuromuscular and muscle activity ▸ Myotropic activity

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length5 amino acids

Chemical FormulaC35H51N9O8

DescriptionStandard

        QFYRI
    

Molecular Weight725.83 Da

Isoelectric Point (pI)8.75

Net Charge (pH 7.0)0.76

Net Charge (pH 7.4) 0.55

Charge Density (pH 7.0) 0.1518

GRAVY Index-0.40

Hydrophobic Moment 0.89

Boman Index-0.11

Instability Index24.30

Aliphatic Index 78.00

Aromaticity 0.4000

Extinction Coeff. Reduced 1490.00

Extinction Coeff. Oxidized 1490.00

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

Amino Acid Composition

TPSA 304.94

LogP -0.90

H-bond Donors 11.0

H-bond Acceptors 9.0

Rotatable Bonds 22.0

Heavy Atoms 52.0

Ring Count 2.0

Amide Bonds 5.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0187063 VERIFIED: NO

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyFMRFamide related peptide

Tax ID6523

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

RFamide Neuropeptide Neuromodulator

RECORD: Rec_0258463 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_0402182 VERIFIED: NO

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyQFYRI-amide

Tax ID6523

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide Neuromodulator Myotropic

Targeta number of significant neuron

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

RECORD: Rec_0421513 VERIFIED: NO

Provenance & Taxonomy

OrganismLymnaea stagnalis [Animal]

FamilyQFYRI-amide

Tax ID6523

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide Neuromodulator Myotropic

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