TY - JOUR TI - Cell-free Translation: Preparation and Validation of Translation-competent Extracts from Saccharomyces cerevisiae AU - Trainor, Brandon M. AU - Komar, Anton A. AU - Pestov, Dimitri G. AU - Shcherbik, Natalia VL - 11 IS - 18 PY - 2021 DA - 2021/09/20 SP - e4093 C1 - Bio-protocol 2021;11:e4093 DO - 10.21769/BioProtoc.4093 UR - https://doi.org/10.21769/BioProtoc.4093 AB - Cell-free translation is a powerful technique for in vitro protein synthesis. While cell-free translation platforms prepared from bacterial, plant, and mammalian cells are commercially available, yeast-based translation systems remain proprietary knowledge of individual labs. Here, we provide a detailed protocol for simple, fast, and cost-effective preparation of the translation-competent cell-free extract (CFE) from budding yeast. Our protocol streamlines steps combined from different procedures published over the last three decades and incorporates cryogenic lysis of yeast cells to produce a high yield of the translationally active material. We also describe techniques for the validation and troubleshooting of the quality and translational activity of the obtained yeast CFE.Graphic abstract:The flow of Cell-Free Extract (CFE) preparation procedure. KW - Saccharomyces cerevisiae KW - Cell-free translation KW - Protein expression KW - Cryogenic lysis KW - Gel-filtration KW - RNA JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False