METHODS FOR THE IDENTIFICATION OF PI3K INTERACTING MOLECULES AND FOR THE PURIFICATION OF PI3K
申请人:Bergamini Moore Giovanna
公开号:US20100055711A1
公开(公告)日:2010-03-04
The present invention relates to a method for the identification of a PI3K interacting compound, comprising the steps of a) providing a protein preparation containing PI3K, b) contacting the protein preparation with phenylthiazole ligand 1 immobilized on a solid support under conditions allowing the formation of a phenylthiazole ligand 1-PI3K complex, c) incubating the phenylthiazole ligand 1-PI3K complex with a given compound, and d) determining whether the compound is able to separate PI3K from the immobilized phenylthiazole ligand 1. Furthermore, the present invention relates to a method for the identification of a PI3K interacting compound, comprising the steps of a) providing a protein preparation containing PI3K, b) contacting the protein preparation with phenylthiazole ligand 1 immobilized on a solid support and with a given compound under conditions allowing the formation of a phenylthiazole ligand 1-PI3K complex, and c) detecting the phenylthiazole ligand 1-PI3K complex formed in step b). Furthermore, the present invention relates to a method for the identification of a PI3K interacting compound, comprising the steps of a) providing two aliquots of a protein preparation containing PI3K, b) contacting one aliquot with the phenylthiazole ligand 1 immobilized on a solid support under conditions allowing the formation of a phenylthiazole ligand 1-PI3K complex, c) contacting the other aliquot with the phenylthiazole ligand 1 immobilized on a solid support and with a given compound under conditions allowing the formation of a phenylthiazole ligand 1-PI3K complex, and d) determining the amount of the phenylthiazole ligand 1-PI3K complex formed in steps b) and c). Furthermore, the present invention relates to a method for the identification of a PI3K interacting compound, comprising the steps of a) providing two aliquots comprising each at least one cell containing PI3K, b) incubating one aliquot with a given compound, c) harvesting the cells of each aliquot, d) lysing the cells in order to obtain protein preparations, e) contacting the protein preparations with the phenylthiazole ligand 1 immobilized on a solid support under conditions allowing the formation of a phenylthiazole ligand 1-PI3K complex, and f) determining the amount of the phenylthiazole ligand 1-PI3K complex formed in each aliquot in step e).
本发明涉及一种用于鉴定PI3K相互作用化合物的方法,包括以下步骤:a)提供含有PI3K的蛋白制备物,b)在固定支持物上接触含有苯并噻唑配体1的蛋白制备物,在条件下允许形成苯并噻唑配体1-PI3K复合物,c)将苯并噻唑配体1-PI3K复合物与给定化合物孵育,d)确定该化合物是否能够将PI3K与固定的苯并噻唑配体1分离。此外,本发明还涉及一种用于鉴定PI3K相互作用化合物的方法,包括以下步骤:a)提供含有PI3K的蛋白制备物,b)在固定支持物上接触含有苯并噻唑配体1的蛋白制备物和给定化合物,在条件下允许形成苯并噻唑配体1-PI3K复合物,c)检测步骤b中形成的苯并噻唑配体1-PI3K复合物。此外,本发明还涉及一种用于鉴定PI3K相互作用化合物的方法,包括以下步骤:a)提供两个含有PI3K的蛋白制备物,b)将一个蛋白制备物与固定在支持物上的苯并噻唑配体1接触,在条件下允许形成苯并噻唑配体1-PI3K复合物,c)将另一个蛋白制备物与固定在支持物上的苯并噻唑配体1和给定化合物接触,在条件下允许形成苯并噻唑配体1-PI3K复合物,d)确定步骤b和c中形成的苯并噻唑配体1-PI3K复合物的数量。此外,本发明还涉及一种用于鉴定PI3K相互作用化合物的方法,包括以下步骤:a)提供至少一个含有PI3K的细胞的两个小分样,b)将一个小分样与给定化合物孵育,c)收集每个小分样的细胞,d)裂解细胞以获得蛋白制备物,e)在固定支持物上接触含有苯并噻唑配体1的蛋白制备物,在条件下允许形成苯并噻唑配体1-PI3K复合物,f)确定步骤e中每个小分样中形成的苯并噻唑配体1-PI3K复合物的数量。