Peptide Database

Peptide NameOrcokinin A 4

Function Ontology

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length14 amino acids

Chemical FormulaC73H105N21O23

DescriptionStandard

        NFDEIDRTGFGRFA
    

Molecular Weight1644.74 Da

Isoelectric Point (pI)4.56

Net Charge (pH 7.0)-1.23

Net Charge (pH 7.4) -1.44

Charge Density (pH 7.0) -0.0882

GRAVY Index-0.70

Hydrophobic Moment 0.44

Boman Index-0.14

Instability Index9.67

Aliphatic Index 35.00

Aromaticity 0.2143

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 740.64

LogP -7.65

H-bond Donors 26.0

H-bond Acceptors 22.0

Rotatable Bonds 53.0

Heavy Atoms 117.0

Ring Count 3.0

Amide Bonds 14.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0368168 VERIFIED: NO

Provenance & Taxonomy

OrganismMeinertellus cundinamarcensis [Animal]; Occasjapyx japonicus [Animal]; Catajapyx aquilonaris [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide