Dibenzocyclooctyne-amine

Dibenzocyclooctyne-amine is a highly specialized chemical reagent belonging to the class of strained cyclooctyne derivatives, renowned for its unique ability to participate in copper-free click chemistry. The compound features a dibenzocyclooctyne (DBCO) core functionalized with a primary amine group, combining exceptional reactivity with versatile conjugation potential. Its structural properties enable rapid and selective bioorthogonal reactions, making it a valuable tool in chemical biology, molecular labeling, and advanced bioconjugation strategies. The amine functionality further broadens its utility, allowing for tailored modifications and integration into diverse molecular architectures, thereby supporting a wide range of research and development applications across the biochemical sciences.

Bioorthogonal Labeling: DBCO-amine is extensively employed in bioorthogonal labeling strategies, particularly through strain-promoted azide-alkyne cycloaddition (SPAAC). Its strained alkyne moiety reacts efficiently with azide-functionalized biomolecules under physiological conditions, enabling site-specific conjugation without the need for copper catalysts. This property is crucial for labeling proteins, nucleic acids, carbohydrates, and other biomolecules in living systems or complex mixtures, facilitating studies of molecular localization, trafficking, and interactions with minimal perturbation to biological function.

Bioconjugation Chemistry: In the field of bioconjugation, the primary amine group of DBCO-amine serves as a versatile handle for further functionalization. Researchers can exploit standard amide bond formation or carbodiimide-mediated coupling to attach DBCO to a wide variety of molecules, including peptides, antibodies, polymers, and surfaces. This enables the creation of custom probes, targeted delivery systems, or multifunctional materials, supporting applications such as targeted imaging, biosensor development, and the generation of biocompatible materials for research use.

Surface and Polymer Modification: The dual reactivity of DBCO-amine makes it a valuable reagent for the functionalization of surfaces and polymers. By covalently attaching DBCO groups to synthetic or natural polymers, researchers can generate azide-reactive surfaces for immobilization of biomolecules, cell capture, or biosensing applications. This approach streamlines the fabrication of advanced materials for diagnostics, microarrays, or biointerface engineering, where precise spatial control and stability of surface modifications are essential.

Molecular Probe Synthesis: The compound's unique combination of strained alkyne and amine functionalities supports the synthesis of molecular probes and imaging agents. By incorporating DBCO-amine into fluorophores, affinity tags, or reporter constructs, scientists can design probes that enable real-time visualization, quantification, or isolation of target molecules in complex biological environments. The copper-free click reaction ensures compatibility with sensitive biomolecules and living cells, expanding the range of possible experimental designs in chemical biology and molecular diagnostics.

Chemical Biology Research: DBCO-amine is instrumental in advancing chemical biology research by enabling the study of dynamic biological processes through minimally invasive labeling techniques. Its rapid, selective reactivity with azides allows researchers to monitor biomolecule turnover, post-translational modifications, or molecular interactions in real time. The compound's versatility and reliability make it an indispensable component in toolkits for investigating biological systems at the molecular level, supporting innovations in proteomics, glycomics, and cell biology.

1. Cationic cell-penetrating peptides are potent furin inhibitors

2. Glucagonlike peptide 2 analogue teduglutide: stimulation of proliferation but reduction of differentiation in human Caco-2 intestinal epithelial cells

3. Immune responses to homocitrulline-and citrulline-containing peptides in rheumatoid arthritis

4. Constitutive and inflammation-dependent antimicrobial peptides produced by epithelium are differentially processed and inactivated by the commensal Finegoldia magna and the pathogen Streptococcus pyogenes

5. An Isolated TCR αβ Restricted by HLA-A* 02: 01/CT37 Peptide Redirecting CD8+ T Cells to Kill and Secrete IFN-γ in Response to Lung Adenocarcinoma Cell Lines