Combinatorial synthesis of peptide arrays onto a microchip |
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| Authors: | Beyer Mario Nesterov Alexander Block Ines König Kai Felgenhauer Thomas Fernandez Simon Leibe Klaus Torralba Gloria Hausmann Michael Trunk Ulrich Lindenstruth Volker Bischoff F Ralf Stadler Volker Breitling Frank |
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| Institution: | German Cancer Research Center, INF 580, 69120 Heidelberg, Germany. |
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| Abstract: | Arrays promise to advance biology through parallel screening for binding partners. We show the combinatorial in situ synthesis of 40,000 peptide spots per square centimeter on a microchip. Our variant Merrifield synthesis immobilizes activated amino acids as monomers within particles, which are successively attracted by electric fields generated on each pixel electrode of the chip. With all different amino acids addressed, particles are melted at once to initiate coupling. Repetitive coupling cycles should allow for the translation of whole proteomes into arrays of overlapping peptides that could be used for proteome research and antibody profiling. |
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