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  AnaSpec Introduces Improved AnaTagTM APC, B-PE and R-PE Labeling Kits

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Author Topic:   AnaSpec Introduces Improved AnaTagTM APC, B-PE and R-PE Labeling Kits
anaspec
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posted 11-10-2008 07:22 PM     Click Here to See the Profile for anaspec   Click Here to Email anaspec     Edit/Delete Message Reply w/Quote
San Jose, CA – November 10, 2008

AnaSpec is pleased to announce the release of the improved AnaTagTM APC, B-PE and R-PE Labeling Kits.

Labeling of antibodies can be both tedious and time-consuming. Without the use of proper techniques and reagents, the conjugation may result in suboptimal or no labeling. AnaSpec’s improved APC, B-PE and R-PE Labeling Kits contain all the reagents needed for optimized labeling of antibodies. The phycobiliproteins, modified by SMCC, result in the creation of SH-reactive moieties, which can easily react with the thiol groups of target antibody. Since no additional activation is required, the conjugation process is simple and easy.

Phycobiliproteins are a family of highly soluble and fluorescent proteins derived from cyanobacteria and eukaryotic algae. Allophycocyanin (APC) is an ultra-sensitive, near-infrared fluorescent tracer with a high quantum yield (Ex/Em = 650 nm/660 nm). B-Phycoerythrin (B-PE), a fluorescent protein from phycobiliprotein family, has a primary absorption peak at 545 nm with a secondary peak at 563 nm and maximum emission at 578 nm. R-Phycoerythrin (R-PE), made of a, b and g subunits and present as (ab)6g, has broad absorption bands with peaks at 565 nm (eM =1.96 X 106 M-1cm-1), 498 (eM =1.53 X 106 M-1cm-1), and 539 nm (eM =1.62 X 106 M-1cm-1. These phycobiliproteins are significantly more sensitive and photostable than conventional organic fluorophores. APC, B-PE or R-PE labeled antibodies are used in applications such as flow cytometry and immunofluorescence.

AnaTag™ kits provide all the reagents, purification column needed to label up to 1 mg of antibody. A detailed step-by-step protocol is also included. APC, B-PE or R-PE and SMCC activated derivatives of these proteins can also be purchased separately.

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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