Peptide Database

Peptide NameLactoferrin [661-667]

Function Ontology

Neurological / Signaling ▸ Analgesic/opioid activity ▸ Opioid antagonist

Neurological / Signaling ▸ Analgesic/opioid activity ▸ Opioid receptor ligand

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length7 amino acids

Chemical FormulaC42H61N9O11

DescriptionStandard

        KYLGPQY
    

Molecular Weight867.99 Da

Isoelectric Point (pI)8.50

Net Charge (pH 7.0)0.76

Net Charge (pH 7.4) 0.55

Charge Density (pH 7.0) 0.1082

GRAVY Index-1.17

Hydrophobic Moment 0.30

Boman Index-0.02

Instability Index25.31

Aliphatic Index 55.71

Aromaticity 0.2857

Extinction Coeff. Reduced 2980.00

Extinction Coeff. Oxidized 2980.00

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

Amino Acid Composition

TPSA 338.70

LogP -1.22

H-bond Donors 11.0

H-bond Acceptors 12.0

Rotatable Bonds 25.0

Heavy Atoms 62.0

Ring Count 3.0

Amide Bonds 7.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0130443 VERIFIED: NO

Provenance & Taxonomy

OrganismHomo sapiens [Animal]

Tax ID9606

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide

RECORD: Rec_0144319 VERIFIED: YES