The selection of plasmids in yeast is based on the use of auxotrophic mutant strains that cannot grow without a specific media component (an amino acid, purine or pyrimidine). Transformation with a plasmid containing the mutated gene enables the transformant to grow on a medium lacking the required component. Sigma′s Yeast Synthetic Drop-Out Media Supplements create a richer medium for better yield and growth rate, and increase the probability of successful transformations when screening libraries or performing gene knock-outs.
Yeast Synthetic Drop-out Medium Supplements are suitable for screening yeast transformants.
Other Notes
Mixtures of amino acids and other nutrients to be added to Yeast Nitrogen Base Without Amino Acids.
Preparation Note
Dissolve 1.46 g of supplement per liter of medium.
Sorting endosomes (SEs) are the regulatory hubs for sorting cargo to multiple organelles, including lysosome-related organelles, such as melanosomes in melanocytes. In parallel, melanosome biogenesis is initiated from SEs with the processing and sequential transport of melanocyte-specific proteins toward maturing
Journal of cell science, 128(17), 3263-3276 (2015-07-26)
Melanosomes are a class of lysosome-related organelles produced by melanocytes. Biogenesis of melanosomes requires the transport of melanin-synthesizing enzymes from tubular recycling endosomes to maturing melanosomes. The SNARE proteins involved in these transport or fusion steps have been poorly studied.
Yeast culture techniques: Model systems for eukaryotic studies with liquid media or agar plate growth.
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