Peptide Database

Peptide NameCholecystokinin I-33

Function Ontology

Hormonal / Endocrine ▸ Hormone peptide

Standard StatusStandard

Sequence Length33 amino acids

Chemical FormulaC176H259N51O48S2

DescriptionStandard

        AGPSGRYVVLPNRPIFDQPHRINDRDYMGWMDF
    

Molecular Weight3921.38 Da

Isoelectric Point (pI)6.80

Net Charge (pH 7.0)-0.11

Net Charge (pH 7.4) -0.36

Charge Density (pH 7.0) -0.0035

GRAVY Index-0.76

Hydrophobic Moment 0.67

Boman Index-0.10

Instability Index54.16

Aliphatic Index 56.06

Aromaticity 0.1515

Extinction Coeff. Reduced 8480.00

Extinction Coeff. Oxidized 8480.00

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

Amino Acid Composition

TPSA 1590.59

LogP -13.16

H-bond Donors 54.0

H-bond Acceptors 51.0

Rotatable Bonds 119.0

Heavy Atoms 277.0

Ring Count 11.0

Amide Bonds 35.0

3D PDB MODEL

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2D CHEMICAL STRUCTURE

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RECORD: Rec_0229771 VERIFIED: NO

Provenance & Taxonomy

OrganismXenopus laevis [Animal]

Tax ID8355

Structure & Mods

Configlinear peptide [Linear]

Chiralitycanonical L-amino-acid peptide [L]

C-TermAmidation

Bio-Activity Profile

Function

Hormone