Peptide Database

Peptide NameUnnamed

Function Ontology

Cardiovascular

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length7 amino acids

Chemical FormulaC41H65N11O11

DescriptionStandard

        QDPFLRI
    

Molecular Weight888.02 Da

Isoelectric Point (pI)5.84

Net Charge (pH 7.0)-0.24

Net Charge (pH 7.4) -0.44

Charge Density (pH 7.0) -0.0341

GRAVY Index-0.29

Hydrophobic Moment 0.64

Boman Index-0.08

Instability Index91.11

Aliphatic Index 111.43

Aromaticity 0.1429

Extinction Coeff. Reduced 0.00

Extinction Coeff. Oxidized 0.00

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

Amino Acid Composition

TPSA 371.42

LogP -1.85

H-bond Donors 12.0

H-bond Acceptors 11.0

Rotatable Bonds 27.0

Heavy Atoms 63.0

Ring Count 2.0

Amide Bonds 7.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0207772 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_0216724 VERIFIED: NO

Provenance & Taxonomy

OrganismCornu aspersum [Animal]

FamilyKQDPFLRI-amide

Tax ID6535

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Hormone Endocrine Neuropeptide Neuromodulator Cardiovascular

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

RECORD: Rec_0264197 VERIFIED: NO

Provenance & Taxonomy

OrganismHelix aspersa [Animal]

FamilyFMRFamide related peptide

Tax ID6535

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

RFamide Neuropeptide Neuromodulator