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  • Title: Elimination of false positives that arise in using the two-hybrid system.
    Author: Bartel P, Chien CT, Sternglanz R, Fields S.
    Journal: Biotechniques; 1993 Jun; 14(6):920-4. PubMed ID: 8333960.
    Abstract:
    The two-hybrid system is a genetic method to identify proteins that interact with a specific target protein, which is expressed in yeast as a hybrid with a DNA-binding domain. Use of this method entails transforming yeast, both with this DNA-binding domain hybrid and with a library of activation domain hybrids, followed by screening for transcriptional activation of a reporter gene. In addition to proteins that interact with the target protein, a number of false positives are identified. We provide possible explanations for these false positives along with rapid assays to eliminate them.
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