Yeast Genomic Library
Yeast Genomic Library - Related Videos
11:59
Competitive Genomic Screens of Barcoded Yeast Libraries
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Cited by 44 •
2011
We have developed comprehensive, unbiased genome-wide screens to understand gene-drug and gene-environment interactions. Methods for screening these mutant collections are presented.
20:59
Large Insert Environmental Genomic Library Production
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Cited by 18 •
2009
Construction of a fosmid library with environmental genomic DNA isolated from the vertical depth continuum of a seasonally hypoxic fjord is described. The resulting clone library is picked into 384-well plates and archived for downstream sequencing and functional screening by the application of an automated colony picking system.
08:40
Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
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Cited by 1 •
2012
The Target ID Library is a plasmid-based, genome-wide collection of cloned cDNA used to identify miRNA targets. Here we demonstrate its use and application.
11:39
Mating-based Overexpression Library Screening in Yeast
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Cited by 1 •
2018
This article presents a mating-based method to facilitate overexpression screening in budding yeast using an arrayed plasmid library.
06:49
Isolating Nucleic Acids from Yeast
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2023
One of the many advantages to using yeast as a model system is that large quantities of biomacromolecules, including nucleic acids (DNA and RNA), can be purified from the cultured cells. This video will address the steps required to carry out nucleic acid extraction. We will begin by briefly outlining the growth and harvest, and lysis of yeast cells, which are the initial steps common to the isolation of all biomacromolecules. Next, we will discuss two unique purification methods for the...
FAQs
Cloning vectors provide the DNA framework that carries individual yeast genomic fragments, while host cells maintain the resulting recombinant molecules so they can be examined. This separation between fragment insertion and biological propagation makes it possible to preserve many different sequences in one resource and retrieve a clone containing a sequence of interest.
These screening approaches identify clones without analyzing every inserted fragment by the same method. Hybridization and PCR provide alternative ways to search the collection for a desired genomic sequence after recombinant molecules have entered host cells. Sequence-based screening narrows a large library to clones relevant to gene isolation, mapping, or functional analysis.
Genomic fragments can contain more than information associated with individual genes. Recovery of regulatory regions helps investigators examine how gene activity may be controlled, while fragments carrying mutations provide material for studying sequence changes in a genetic context. These features extend analysis from identifying a gene to investigating its organization and possible functional consequences.
After yeast genomic DNA is fragmented and inserted into cloning vectors, recombinant molecules are introduced into host cells. Screening then uses hybridization, PCR, or another suitable method to identify clones containing the sequence sought. The workflow links physical DNA construction with sequence-specific detection, allowing a large collection to be searched for a defined genetic region.
Once a desired clone has been identified, its inserted fragment can serve as a defined piece of the yeast genome for further analysis. Collections of such fragments support genome mapping by relating cloned DNA to genomic organization, and they provide material for sequence analysis. This makes the library useful both for locating regions and characterizing their sequence content.
Because the library represents genomic material from a yeast species, its cloned fragments can be examined alongside corresponding material from other organisms or yeast strains. Such comparisons help investigate similarities and differences in gene structure, regulatory regions, genome organization, or mutations. The library therefore supplies a stored, analyzable source for comparing genetic features.
Identified genomic sequences can guide functional studies and contribute to the development of engineered yeast strains. Researchers may focus on a gene, its regulatory region, or a mutation, then use the resulting sequence information to understand how that genomic feature relates to strain design. The library thus connects genetic investigation with applied yeast engineering.