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Discover how PEPperPRINT Peptide Microarray products have been used in different fields of research.

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Purification and Characterization of Anacardium occidentale (Cashew) Allergens Ana o 1, Ana o 2, and Ana o 3

Reitsma, Marit; Bastiaan-Net, Shanna; Sforza, Stefano; van der Valk, Johanna P. M.; van Gerth van Wijk, Roy; Savelkoul, Huub F. J.; de Jong, Nicolette W.; Wichers, Harry J.
J. Agric. Food Chem..
Feb 2016
10.1021/acs.jafc.5b04401
In this study a fast and simple purification procedure for the three known allergens from cashew (7S globulin Ana o 1, 11S globulin Ana o 2, and 2S albumin Ana o 3) is described. The purified allergens are characterized by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), Western blot, glycoprotein stain, and protein identification. The purified proteins still bind IgE, and this IgE binding varied between different pools of patient serum. Ana o 1 was found to be a glycoprotein. Ana o 3 has been studied more in detail to identify both the small and large subunits, both displaying microheterogeneity, and epitope mapping of Ana o 3 has been performed.

Combinatorial Synthesis of Peptide Arrays with a Laser Printer

Stadler, Volker; Felgenhauer, Thomas; Beyer, Mario; Fernandez, Simon; Leibe, Klaus; Güttler, Stefan; Gröning, Martin; König, Kai; Torralba, Gloria; Hausmann, Michael; Lindenstruth, Volker; Nesterov, Alexander; Block, Ines; Pipkorn, Rüdiger; Poustka, Annemarie; Bischoff, F. Ralf; Breitling, Frank
Angew. Chem. Int. Ed..
Sep 2008
10.1002/anie.200801616
Special delivery: The “freezing” of activated amino acid derivatives within solid particles enables a laser printer to deliver these “postal packages” to defined locations on a solid support with high resolution. Subsequent parallel coupling is initiated simply by melting a whole layer of 20 different amino acid particles (see schematic representation; Fmoc=9-fluorenylmethoxycarbonyl).

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