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    Area of Science:

    • Molecular Biology
    • Genetics
    • Biotechnology

    Background:

    • Yeast-based genetic interaction studies, such as yeast one-hybrid (Y1H) and yeast two-hybrid (Y2H) assays, are fundamental for understanding protein-DNA and protein-protein interactions.
    • Efficient transformation protocols are critical for the success of these assays, impacting the generation of DNA baits and the screening of large clone libraries.

    Purpose of the Study:

    • To describe a high-efficiency yeast transformation protocol.
    • To demonstrate its utility in key molecular biology applications including Y1H and Y2H assays.
    • To establish a time-efficient method for genetic manipulation in yeast.

    Main Methods:

    • The protocol involves high-efficiency transformation of yeast strains.
    • Specific applications include integration into YM4271 for yeast one-hybrid (Y1H) DNA-bait generation.
    • It is also used for transforming activation domain (AD)-prey clone libraries into Y1H and yeast two-hybrid (Y2H)-bait strains, and for gap repair.

    Main Results:

    • The described transformation protocol achieves high efficiency.
    • It is successfully applied to DNA-bait generation in YM4271.
    • The protocol enables efficient transformation of AD-prey libraries for Y1H and Y2H screening and facilitates gap repair.

    Conclusions:

    • A robust and efficient yeast transformation protocol is presented.
    • This method significantly streamlines the process of DNA-bait generation and library screening in Y1H and Y2H assays.
    • The protocol's completion within two days offers a substantial time advantage for researchers in yeast genetics and molecular interactions.