Peptide Database

Peptide NameOrcokinin

Function Ontology

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 FormulaC68H94N16O23

DescriptionStandard

        DFDEIDRSGFGFV
    

Molecular Weight1503.57 Da

Isoelectric Point (pI)4.05

Net Charge (pH 7.0)-3.23

Net Charge (pH 7.4) -3.44

Charge Density (pH 7.0) -0.2487

GRAVY Index-0.23

Hydrophobic Moment 0.55

Boman Index0.06

Instability Index55.74

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 643.85

LogP -5.55

H-bond Donors 22.0

H-bond Acceptors 20.0

Rotatable Bonds 48.0

Heavy Atoms 107.0

Ring Count 3.0

Amide Bonds 12.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0014742 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: 1.1 hour; Yeast: 3 min; E. coli: >10 hour

RECORD: Rec_0216055 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

Neuropeptide Invertebrate neuropeptide

PaperDiscovery and characterization of the Crustacean hyperglycemic hormone precursor related peptides (CPRP) and orcokinin neuropeptides in the sinus glands of the blue crab Callinectes sapidus using multiple tandem mass spectrometry techniques PMID21740068 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/21740068/

RECORD: Rec_0284034 VERIFIED: YES

Provenance & Taxonomy

OrganismOcypode ceratophthalma [Animal]

FamilyOrcokinin

Tax ID373423

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide Invertebrate neuropeptide

PaperDiscovery and characterization of the Crustacean hyperglycemic hormone precursor related peptides (CPRP) and orcokinin neuropeptides in the sinus glands of the blue crab Callinectes sapidus using multiple tandem mass spectrometry techniques PMID21740068 Evidence URLhttps://pubmed.ncbi.nlm.nih.gov/21740068/

RECORD: Rec_0407064 VERIFIED: YES

Provenance & Taxonomy

OrganismOcypode ceratophthalmus [Animal]

FamilyOrcokinin

Tax ID373423

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Myotropic

Half-LifeMammalian: 1.1 hour; Yeast: 3 min; E. coli: >10 hour

RECORD: Rec_0421275 VERIFIED: NO

Provenance & Taxonomy

OrganismCarcinus maenas [Animal]; Ocypode ceratophthalma [Animal]

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

Bio-Activity Profile

Function

Neuropeptide