Article: Gene expression: better tools: more complex results.(Cover story)

Gene expression has become a mainstream technique in biology, medicine, and drug development. Broadly speaking, gene expression comes in two flavors: analytical and functional. The former refers to detecting and quantifying genes, especially by comparing two samples (treated/untreated, diseased/normal). With functional gene expression, the aim is to obtain some quantity of protein.

Judy Macemon, Business Manager for Transfection at Invitrogen (Carlsbad, CA), says her customers divide about 2-1, with those interested in gene expression/knockdown for investigating gene function about double the number of those using gene expression to make protein.

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