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AnaSpec Introduces Biotin Labeled beta-Amyloid GO™ Peptides - AnaSpec has introduced a line of b-amyloid peptides labeled with biotin (N or C-terminal biotin labels) as well as N-terminal biotin labeled b-amyloid peptides with a fluorescein label on the C-terminus
AnaSpec Introduces Biotin Labeled beta-Amyloid GO™ Peptides

 

NewswireToday - /newswire/ - San Jose, CA, United States, 2009/05/13 - AnaSpec has introduced a line of b-amyloid peptides labeled with biotin (N or C-terminal biotin labels) as well as N-terminal biotin labeled b-amyloid peptides with a fluorescein label on the C-terminus.

   
 
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AnaSpec, the provider of the world’s largest collection of ready-to-go b-amyloid peptides and related products for Alzheimer’s disease (AD) research, has introduced a line of b-amyloid peptides labeled with biotin (N or C-terminal biotin labels) as well as N-terminal biotin labeled b-amyloid peptides with a fluorescein label on the C-terminus.

These peptides have been used in different applications. Nelson, TJ and Alkon, DL. used biotin-LC-b-amyloid-(1–42) in Ab-proteins binding studies.1 Ab-proteins complex were precipitated with avidin-agarose and western blots run. A paper by Bohrmann, B. et al. reported the use of biotin-Ab(1-40) or biotin-Ab (1-42) for their Ab polymerization studies. 2 Biotin-Ab (1-40) or biotin-Ab (1-42) peptides were incubated in Ab (1-40) or Ab (1-42) coated plates, and streptavidin-peroxidase added. Color development was done using tetramethyl-benzidin, a chromogenic substrate for peroxidase. In the same paper,2 biotin-Ab (1-40) incorporation into preformed Ab (1-42) fibrils was reported. Biotin-Ab (1-40) was added to a low concentration of Ab (1-42) fibrils and stained with anti-biotin Ig labeled with colloidal gold and negatively stained with uranyl acetate. A paper by Liu, Y. et al shows the use of biotinylated fibrillar Ab (1-42) in electron microscopy.3

Using what they called “FAbB,” fluorescein beta-amyloid (1-40)-Lys(LC-biotin), Leissring, MA. et al. performed proteolysis measurement using fluorescence polarization (FP) technique.4

References:
1. Nelson, TJ. and DL. Alkon, J. Biol. Chem. 282, 31238 (2007).
2. Bohrmann, B. et al. J. Biol. Chem. 274, 15990 (1999).
3. Liu, Y. et al. Brain 128, 1778 (2005).
4. Leissring, MA. et al. J. Biol. Chem. 278, 37314 (2003).

About AnaSpec

AnaSpec, Inc. (anaspec.com) 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.

 
 
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Written by / Agency / Source: AnaSpec, Inc.

 
 

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AnaSpec Introduces Biotin Labeled beta-Amyloid GO™ Peptides

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Publisher Contact: Ping Yang 
408-452-5055 ping[.]anaspec.com
 
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