Released on = August 22, 2007, 9:58 am

Press Release Author = AnaSpec Inc.

Industry = Biotech

Press Release Summary = This week AnaSpec introduced the SensoLyteTM 520 TACE Assay
Kit, offering fluorescence detection at the industry's longest wavelengths.

Press Release Body = August 20, 2007 - San Jose, CA

This week AnaSpec introduced the SensoLyteTM 520 TACE Assay Kit, offering
fluorescence detection at the industry's longest wavelengths. With higher
fluorescence quantum yield and longer emission wavelength, this kit shows less
autofluorescence interference from test compounds and cellular components, and
provides greater assay sensitivity than comparable kits using shorter-wavelength
FRET substrates.

The SensoLyteT 520 TACE Activity Assay Kit uses a FRET peptide substrate for the
continuous measurement of enzyme activity. The FRET pair is composed of 5-FAM
(5-carboxyfluorescein) and QXLT 520, one of AnaSpec's proprietary fluorescence
quenchers. In the intact FRET peptide, the fluorescence of 5-FAM is quenched by QXLT
520. Upon cleavage of the FRET peptide by the active enzyme, the fluorescence of
5-FAM is recovered, and can be continuously monitored at excitation/emission

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

Contact Details = 2149 O\'Toole Ave.
San Jose, CA 95131
ping@anaspec.com