Glycoyl-Lys5-Octreotide features a glycoacyl group attached to Lys5, providing a handle for exploring carbohydrate influence on peptide structure. The modification can alter local charge distribution and hydrophilicity. Researchers monitor conformational and binding changes in receptor and membrane models. Applications include glyco-peptide conjugate development, biophysical characterization, and targeted-delivery research.
CAT No: Z10-101-217
Synonyms/Alias:D-Phenylalanyl - L-hemicystyl - L-phenylalanyl - D-tryptophyl - (N-Glycoglycoyl) - L-lysyl -L-threonyl - L-hemicystyl - L-Threoninol cyclic (2-7) - disulfide
Glycoyl-Lys5-Octreotide is a synthetic peptide analog structurally derived from octreotide, featuring a glycoyl modification at the lysine residue in position five. As a member of the somatostatin peptide family, it exhibits unique biochemical properties that make it a valuable tool in peptide research and functional studies. The presence of the glycoyl group introduces distinct physicochemical characteristics, influencing its binding affinity and stability compared to unmodified octreotide analogs. Researchers utilize such modified peptides to better understand structure-activity relationships, receptor interactions, and the broader implications of post-translational modifications on peptide function.
Peptide receptor interaction studies: The primary application of Glycoyl-Lys5-Octreotide lies in its use as a model compound for investigating somatostatin receptor binding dynamics. By introducing a glycoyl group at the lysine position, researchers can dissect how specific chemical modifications alter peptide-receptor affinity, selectivity, and downstream signaling. This enables a more nuanced exploration of receptor subtype specificity and the molecular determinants that drive ligand recognition, which is critical for advancing knowledge in peptide-receptor pharmacology.
Structure-activity relationship (SAR) analysis: The unique structure of this modified octreotide analog provides a robust platform for SAR investigations. Scientists leverage it to systematically evaluate how changes at key amino acid positions affect the biological activity and metabolic stability of somatostatin peptides. Such studies are essential for mapping functional domains within peptide sequences and for guiding the rational design of next-generation analogs with tailored properties for research applications.
Peptide synthesis and modification research: Glycoyl-Lys5-Octreotide serves as a reference molecule in the development and optimization of synthetic strategies for site-specific modification of peptides. Its incorporation into synthetic workflows allows chemists to refine coupling techniques, assess the impact of glycoylation on peptide folding and solubility, and evaluate the efficiency of protecting group strategies. This contributes to the broader field of peptide chemistry by providing insights into the challenges and solutions associated with the synthesis of structurally complex peptide analogs.
Analytical method development: The compound is frequently employed as a standard or model analyte in the validation and calibration of analytical techniques such as high-performance liquid chromatography (HPLC), mass spectrometry, and capillary electrophoresis. Its defined structure and modification pattern make it an ideal candidate for method optimization, impurity profiling, and the assessment of peptide stability under various analytical conditions. These applications are vital for ensuring the reliability and accuracy of peptide quantification in research and quality control settings.
Molecular probe design: The distinctive chemical features of Glycoyl-Lys5-Octreotide enable its use as a scaffold for the development of molecular probes and labeled derivatives. By attaching fluorescent tags, biotin, or other reporter groups to the peptide backbone, scientists can generate customized tools for studying peptide trafficking, receptor localization, and protein-peptide interactions in cellular and biochemical assays. Such probes facilitate high-resolution investigations into the dynamics of peptide-mediated signaling pathways and enhance the toolkit available for advanced molecular biology research.
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