Released on: September 16, 2008, 9:42 am

Press Release Author: AnaSpec Inc.

Industry: Biotech

Press Release Summary: AnaSpec has introduced its latest collection of streptavidins
labeled with its patented HiLyte FluorTM and HiLytePlusTM dyes which promise
brighter fluorescence and better photostability compared to FITC and Cyâ dyes.

Press Release Body: San Jose, CA – September 16, 2008

Both avidin and streptavidin show extraordinary strong affinity to biotin. The
dissociation constant (Kd) of the non-covalent interaction between streptavidin and
biotin is on the order of 10-15 M. The streptavidin-biotin complex is also highly
stable over a wide range of temperatures and pH. As a result, the
streptavidin-biotin interaction has been extensively used in molecular biology,
immunology, and cellular assays.

AnaSpec has introduced its latest collection of streptavidins labeled with its
patented HiLyte FluorTM and HiLytePlusTM dyes which promise brighter fluorescence
and better photostability compared to FITC and Cyâ dyes. Streptavidins labeled with
fluorescent dyes are widely used for immunofluorescent staining (Fig.1, 2),
fluorescence activated cell sorting, in situ hybridization and other biological
applications.

AnaSpec’s HiLyte FluorTM Labeled Streptavidin Sampler kits, available in 2 sizes,
contain streptavidins labeled individually with HiLyte Fluor TM. Prepared at
optimal fluorophore to streptavidin labeling ratio, these HiLyte Fluor™ streptavidin
conjugates exhibit high fluorescence signal and uncompromised biotin binding
capability. Every lot has been validated with immunofluorescence staining.

About AnaSpec

AnaSpec is a leading provider of integrated proteomics solutions to the world’s
largest biotech, pharmaceutical, and academic research institutions. With a vision
for innovation through synergy, AnaSpec focuses on three core technologies:
peptides, detection reagents, and combinatorial chemistry.

For more information visit www.anaspec.com

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Web Site: http://www.anaspec.com

Contact Details: AnaSpec Inc.
2149 O'Toole Ave.
San Jose, CA 95131
1-408-452-5055 (Tel)
1-408-452-5059 (Fax)
1-800-452-5530
ping@anaspec.com
www.anaspec.com