Peptide Database

Peptide NameOrcokinin

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Neurological / Signaling ▸ Neuromodulation

Neurological / Signaling ▸ Neuromuscular and muscle activity ▸ Myotropic activity

Neurological / Signaling ▸ Neuropeptide activity ▸ Invertebrate neuropeptide

Neurological / Signaling ▸ Neuropeptide activity ▸ Neuropeptide

Standard StatusStandard

Sequence Length13 amino acids

Chemical FormulaC69H97N17O23

DescriptionStandard

        NFDEIDRSSFGFV
    

Molecular Weight1532.61 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-2.23

Net Charge (pH 7.4) -2.44

Charge Density (pH 7.0) -0.1719

GRAVY Index-0.26

Hydrophobic Moment 0.49

Boman Index0.02

Instability Index64.79

Aliphatic Index 52.31

Aromaticity 0.2308

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 669.87

LogP -6.79

H-bond Donors 23.0

H-bond Acceptors 21.0

Rotatable Bonds 49.0

Heavy Atoms 109.0

Ring Count 3.0

Amide Bonds 13.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0427108 VERIFIED: YES

Provenance & Taxonomy

OrganismCallinectes sapidus [Animal]

FamilyOrcokinin

Tax ID6763

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Myotropic

Half-LifeMammalian: 1.4 hour; Yeast: 3 min; E. coli: >10 hour

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