ADC target identification and antibody discovery

Target identification in ADC development focuses on selecting tumor-associated antigens with differential expression on malignant versus healthy tissues and generating high-affinity monoclonal antibodies optimized for internalization and stability. Biochemical reagents, including amino acids, lipids, buffers, detergents, and metabolic tools, support antigen production, cell-based screening, antibody expression, and initial characterization.

Browse the biochemical reagents used at each step of ADC target identification and antibody discovery below.  

• Amino acids for antibody development
• Antibiotics for experimental consistency
• Biological buffers for system stability
• Carbohydrates for cell-based assays
• Chelating and reducing reagents for protein stabilization
• Detergents for protein solubilization and stability
• Glycoconjugates for glycobiology
• High-purity biochemicals for accuracy
• Lipids for antigen presentation
• Metabolism assay kits for target analysis
• Metabolite libraries for metabolomic analysis
• Polyethylenimine (PEI) for transfection efficiency

Amino acids for antibody development

Amino acid supplementation is critical in serum-free and chemically defined media formulations, supporting cell viability, improving antibody expression yields, and contributing to post-translational modifications, including glycosylation, in hybridoma and CHO-based production.

Antibiotics for experimental consistency

Antibiotics protect cell culture and assay systems from bacterial and fungal contamination, ensuring that target expression levels, cell viability, and assay readouts reflect true biological responses.

Biological buffers for system stability

Biological buffers maintain physiological pH and ionic strength throughout binding assays, ELISAs, and surface plasmon resonance studies, ensuring that target–antibody interactions are measured under controlled, reproducible conditions. 

Carbohydrates for cell-based assays

Carbohydrates such as glucose and trehalose serve as primary energy sources and cryoprotectants in cell-based assay systems. Glucose sustains antibody-secreting cultures, while trehalose supports protein and cell stabilization during freeze-drying and early ADC discovery formulation steps. 

Chelating and reducing agents for protein stabilization

Chelating agents remove trace metal ions that catalyze oxidative protein degradation, while reducing agents such as DTT cleave disulfide bonds to prevent non-specific aggregation, facilitate antibody fragment preparation (Fab, F(ab')2), and maintain native protein conformation during purification and structural analysis.

Detergents for protein solubilization and stability

Detergents facilitate membrane protein solubilization and cell lysis, enabling extraction of transmembrane target antigens while preserving protein–protein interaction interfaces critical for accurate binding and function studies. 

Glycoconjugates for glycobiology

Glycoconjugates enable study of glycan-mediated receptor recognition, including the role of surface glycans in antibody binding specificity and target engagement relevant to ADC antigen validation.  

High-purity biochemicals for accuracy

Reagent-grade and BioUltra-certified biochemicals, including inorganic salts, bases, and buffer components, minimize background interference and ensure assay reproducibility. Endotoxin-tested and DNase/RNase-free grades are particularly important in sensitive cell-based target screening and antibody binding assay formats.

Lipids for antigen presentation

Lipids such as cholesterol and phosphatidylcholine reconstitute native-like membrane bilayers, enabling tumor-associated surface antigens to be displayed in a biologically relevant context. This supports accurate assessment of antibody-antigen recognition and binding selectivity during early-stage ADC candidate screening.  

Metabolism assay kits for target analysis

Metabolism assay kits quantify key cellular biomarkers, including metabolic activity, enzyme function, and cytotoxic responses, providing functional readouts that complement antibody binding data during target validation and early-stage compound screening.

Metabolite libraries for metabolomic analysis

Metabolite libraries enable metabolomic profiling of target cell lines and biological matrices, supporting identification of dysregulated pathways associated with tumor biology and helping prioritize ADC targets with metabolically relevant signatures. 

Polyethylenimine (PEI) for transfection efficiency

Polyethylenimine (PEI) forms stable polyplexes with plasmid DNA, enabling efficient transient and stable transfection in HEK293 and CHO cell systems commonly used for antibody gene expression, antigen construct delivery, and reporter-based target validation in ADC discovery workflows.