发明名称 |
Methods for identifying products employing reporter gene expression |
摘要 |
<p>A method for identifying a product involves the steps of: (1) associating with the product a marker ligand; and (2) detecting the marker ligand in the product at a later point in time as a means of identifying the product by contacting the product with a detector composition. The detector composition comprises one or more first nucleotide sequences encoding one or more natural or synthetic ligand-dependent transcription factors, wherein said factors comprise at least one ligand binding domain, at least one DNA binding domain and at least one transactivation domain; and a second nucleotide sequence encoding a reporter gene under the regulatory control of a receptor response element or a modified or synthetic response element, and a second promoter. The method may also employ a corepressor or coactivator or a nucleotide sequence encoding the corepressor or activator. Interaction between the marker ligand and ligand binding domain is highly specific and induces a change in the expression of the reporter gene, the change producing a detectable signal identifying the presence of the marker ligand in the product. The detector composition, a cell line containing the first and second nucleotide sequences, kits using them and products marked with specific marker ligands are useful in this method.</p> |
申请公布号 |
EP1199371(A2) |
申请公布日期 |
2002.04.24 |
申请号 |
EP20010308598 |
申请日期 |
2001.10.09 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
WEINSTEIN, BARRY;KELLER, LORRAINE HOLOWACH;PALLI, SUBBA REDDY |
分类号 |
G01N33/53;C12N15/09;C12Q1/02;C12Q1/66;C12Q1/68;G01N33/566;(IPC1-7):C12Q1/68 |
主分类号 |
G01N33/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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