News
Attractive Growth Projected in RNAi Market - Invitrogen and Applied Biosystems Revealed as
Leading Suppliers in New Life Science Dashboard™ From Percepta Associates

Carlsbad, Calif. -- March 19, 2007 – Today Percepta Associates launched its Gene Silencing Life
Science Dashboard™ market research report revealing market growth rates of between 11% and 30%
for gene silencing methodologies. This new Dashboard presents key market indicators for the gene
silencing market as a whole as well as for the following methods representing market sub-segments:

• RNAi screens using siRNA libraries
• Inducing siRNAs in vivo from a plasmid or other vector in cells
• Delivering synthetic siRNAs into cells
• Digesting long dsRNA in vivo using dicer or other enzymes
• Expressing siRNA in vitro for delivery into cells
• Using PCR mediated siRNA expression cassettes to generate siRNAs
• Delivering siRNAs into cells by transfection
• Delivering siRNAs into cells by electroporation
• Delivering siRNAs into cells by viral infection
• Using a reporter systems to track gene knockdown

RNA interference (RNAi) is rapidly emerging as an integral tool for investigating the physiological
function of genes. RNAi -based methods allow researchers to modulate, and in many cases
effectively silence, expression of a gene of interest. Systems for delivering RNAs into cells for the
purpose of gene silencing include standard transfection technologies as well as plasmid and viral
systems for the inducible expression of siRNAs in vivo.

The Gene Silencing Dashboard shows Applied Biosystems (NASDAQ:ABI), primarily with its Ambion
products, and Invitrogen (NASDAQ:IVGN) to be among the top suppliers for all ten categories
surveyed. Other companies recognized as leaders in specific segments include Dharmacon
(NYSE:TMO), Qiagen (NASDAQ:QGENF) and Amaxa Biosystems.

This new gene silencing market report from Percepta Associates, a market research and strategic
consulting firm focused on serving life science companies, was developed from responses to a 36-
question survey by over 360 scientists predominantly located in North America and Europe.
“The gene silencing market is one of the most rapidly growing markets served by life science tool
companies” said Scott Provost, Principal of Percepta. “However, it‘s an increasingly competitive
market. This Dashboard report will help companies currently serving the gene silencing segments,
as well as those planning entry, to quickly assess where opportunities for growth and share gain
lie.”

To view gene silencing market research sample data and questionnaires visit:
http://www.perceptaassociates.com/publications/gene_silencing_sample.shtml

Life Science Dashboards™ are readily accessible sources of current, segment-specific, market
research. Designed and implemented by industry veterans, each dashboard provides key life science
market indicators compiled from the survey responses of hundreds of qualified decision-makers and
researchers actively using molecular biology and cell culture products.

Unlike other market research reports, Percepta's dashboards feature an at a glance format that
provides rapid access to actionable key market indicators in an easy to understand framework,
including:

• Market size
• Market share
• Market growth and reaction throughput rates
• Customer satisfaction
• Propensity to switch
• Competitive intensity
• Perceived pricing
• Top suppliers
• Technique usage frequency
• Fastest growing techniques
• Primary and secondary downstream applications

About Percepta

Founded in 2005 in Carlsbad, Percepta Associates serves an impressive and rapidly growing roster
of bioscience clients across North America and Europe. Percepta is a specialized consultancy
providing expert market research, strategic business planning, portfolio management, product and
corporate branding and marketing communications services. For more information visit
www.perceptaassociates.com

CONTACT:
Percepta Associates Inc.
Mike Klein
Principal
Phone: 760 597 9236
Email: mklein@perceptaassociates.com

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