Peptide Database

Peptide NameFMRFamide 4

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length9 amino acids

Chemical FormulaC45H73N15O14

DescriptionStandard

        GQNSNFIRL
    

Molecular Weight1048.15 Da

Isoelectric Point (pI)9.75

Net Charge (pH 7.0)0.76

Net Charge (pH 7.4) 0.56

Charge Density (pH 7.0) 0.0845

GRAVY Index-0.57

Hydrophobic Moment 0.35

Boman Index-0.11

Instability Index-7.81

Aliphatic Index 86.67

Aromaticity 0.1111

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 507.52

LogP -6.49

H-bond Donors 17.0

H-bond Acceptors 15.0

Rotatable Bonds 35.0

Heavy Atoms 74.0

Ring Count 1.0

Amide Bonds 11.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0213760 VERIFIED: NO

Provenance & Taxonomy

OrganismNicoletia phytophila [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Neuropeptide