We can help you quickly establish stable mammalian cell lines (mixed clone or single clone), either constitutive or inducible, for high level gene expression or silence. The inducible system is ideal for any over-expression or knockdown of gene(s), which causes cell toxicity or apoptosis. G protein-coupled receptors (GPCR), channels, membrane-associated or secreted proteins all can be expressed at very high levels with full function, and remain stable for screening assay, binding assay or crystal structure determination. We also help to establish cell lines for the expression of therapeutic biologics such as monoclonal antibodies, enzymes and hormones for the production of the biologics in pre-clinical and clinical test. Please call us to make an inquiry for more details.