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Methods for analyzing interactions between proteins and sugar chains

  • US 8,008,094 B2
  • Filed: 12/24/2004
  • Issued: 08/30/2011
  • Est. Priority Date: 12/25/2003
  • Status: Active Grant
First Claim
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1. A method for analyzing an interaction between a sugar chain and a protein that interacts with a sugar chain, wherein the method comprises the steps of:

  • (a) contacting a fluorescently labeled subject sugar chain or subject glycoconjugate with a glass substrate onto which a protein that interacts with a sugar chain has been immobilized, wherein the glass substrate is coated with a compound comprising an epoxy group as an active group, and wherein a number of reaction vessels are formed on the glass substrate by affixing a rubber having a number of holes on the glass substrate;

    (b) measuring the intensity of an excited fluorescence after applying an evanescent wave generated by injecting an excitation light from the edge of the glass substrate, without washing the glass substrate;

    (c) digitizing the fluorescence intensity; and

    (d) quantifying the fluorescence intensity.

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