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AnaSpec Improves Sensitivity of SensoLyte® pNPP Alkaline Pho

 
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anaspec



Joined: 15 Aug 2006
Posts: 238
Location: 34801 Campus Drive, Fremont, CA 94555

PostPosted: Mon Nov 09, 2009 2:52 pm    Post subject: AnaSpec Improves Sensitivity of SensoLyte® pNPP Alkaline Pho Reply with quote

Fremont, CA – October 26, 2009

AnaSpec’s SensoLyte® pNPP Alkaline Phosphatase Assay kits now contain a specially formulated pNPP substrate. This new substrate offers the following advantages:

· Ready to use – no need to reconstitute pNPP powder
· Improved sensitivity – detects as low as 0.02 ng alkaline phosphatase
· Improved stability – stores at 4C for one year

Changes in alkaline phosphatase level and activity are involved in a variety of physiological and pathological events, such as bone development,1 bone-related diseases,2 gestation related diseases,3 inflammatory bowel disease,4 post-parathyroidectomy stage,5 and drug toxicity.6 Alkaline phosphatase is widely used in ELISA for conjugation with secondary antibody and as a reporter for gene expression studies.

These SensoLyte® pNPP Alkaline Phosphatase Assay kits provide a convenient colorimetric assay for detecting alkaline phosphatase in biological samples and in ELISA with alkaline phosphatase conjugated secondary antibody or streptavidin by using colorimetric pNPP (p-Nitrophenyl phosphate) phosphatase substrate. Upon dephosphorylation, pNPP turns yellow and can be detected at absorbance=405 nm.

The SensoLyte® pNPP Alkaline Phosphatase ELISA Assay kits provide an AP-conjugated secondary antibody – goat anti-mouse (cat# 72147-M) or goat anti-rabbit (cat# 72147-R). AnaSpec also offers a pNPP assay kit for secreted alkaline phosphatase reporter assay, the SensoLyte® pNPP Secreted Alkaline Phosphatase (SEAP) Reporter Gene Assay Kit. A luminometric SEAP kit is also available.

Alkaline phosphatase enzyme at each dilution was mixed with pNPP substrate, and then incubated at room temperature for 1 hr. Absorbance was recorded at 405 nm (Ultra Microplate Reader EL808, Bio-Tek Instruments, Inc). This assay is able to detect as low as 0.02 ng of alkaline phosphatase.

References
1. Kotobuki, N. et al. Cell Transplant. 13, 377 (2004).
2. Wyckoff, MH. et al. J. Clin. Endocrinol. Metab. 90, 1233 (2004).
3. Boronkai, A. et al. J. Clin. Pathol. 58, 72 (2005).
4. Sanchez, M. et al. Biochem. Pharmacol. 68, 2317 (2004).
5. Morrone, LF. et al. Ann. Ital. Med. Int. 19, 189 (2004).
6. Papaldo, P. et al. Cancer Invest. 22, 650 (2004).

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 antibodies.

For more information visit www.anaspec.com

###
_________________
Ping Yang
Marketing Speialist
34801 Campus Drive
Fremont, CA 94555
1-800-452-5530 (Toll free)
1-510-791-9560 (Tel)
1-510-791-9572 (Fax)
ping@anaspec.com
www.anaspec.com
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