A testing method of nucleic acid binding protein based on...

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G01N 33/68 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2586408

A testing method of nucleic acid binding protein based on biochip, comprises the following steps: 1. puts a plurality of groups solution including nucleic acid captured probes into biological sample including a plurality of nucleic acid binding protein to be test, and thus forming nucleic acid captured probe- nucleic acid binding protein complexes; such nucleic acid captured probe includes at least a segment of binding sequence which can bind with aimed nucleic acid binding protein; 2. separates such nucleic acid captured probe- nucleic acid binding protein complexes, then recoveries nucleic acid captured probes; 3. hybridizes the nucleic acid captured probes according to step 2 with a plurality of single strand blotting probes on biochip substrate; the sequence of such blotting probe compensates with such nucleic acid captured probe or one of its strand; 4. detects the result of hybridization.

La présente invention a trait à un procédé de test de protéine de liaison aux acides nucléiques basé sur biopuce, comprenant les étapes suivantes: 1) le placement d'une pluralité de solutions de groupes incluant des sondes de capture d'acides nucléiques dans un échantillon biologique comportant une pluralité de protéines de liaison aux acides nucléiques à tester, formant ainsi des complexes de sondes de capture d'acides nucléiques et de protéines de liaison aux acides nucléiques; ladite sonde capturée d'acides nucléiques comprenant au moins un segment de séquence de liaison capable d'une liaison avec la protéine de liaison aux acides nucléiques cible; 2) la séparation desdits complexes de sondes de capture d'acides nucléiques et de protéines de liaison aux acides nucléiques, suivie de la récupération des sondes de capture d'acides nucléiques; 3) l'hybridation des sondes de capture d'acides nucléiques selon l'étape 2) avec une pluralité de sondes de transfert monocaténaires sur un substrat de biopuce; la séquence d'une telle sonde de transfert se compense avec une telle sonde de capture d'acides nucléiques ou un de ses brins; 4) la détermination du résultat d'hybridation.

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