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We narrowed to 12 results for: lacz gene

Showing: 1 - 12 of 12 results
  1. Plasmids 101: Screening Strategies Used in Plasmid Cloning

    Type
    Blog Post
    Published
    Sept. 15, 2020, 1:15 p.m.
    ...the blue-white screen, which relies on the lacZ gene. lacZ encodes the enzyme 𝛽-galactosidase which can...on vectors where the gene of interest is inserted into the middle of the lacZ gene, thus disrupting 𝛽-...strains contain lacZ in their genome, and scientists have found that when a portion of the gene is deleted,...where only cells that have gained or lost a specific gene survive (ex: antibiotic resistance marker). In a...mentioned above. In molecular biology, cloning a gene into your plasmid is often a numbers game. By using...
  2. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
    Published
    Oct. 11, 2018, 12:30 p.m.
    ...showed the expected complete sequence for the lacI/lacZ genes (1), while sequencing of white colonies showed...based on the ability to correctly assemble a lacI/lacZ cassette (designed by NEB for use in optimization...coding sequence for beta-galactosidase in the lacI/lacZ cassette. Additional confirmation of accurate assemblies...blue phenotype. Indeed, this was seen in all lacI/ lacZ assembly test systems; no blue colonies were obtained...from 1-, 12- and 24-fragment assemblies of the lacI/lacZ cassette, and illustrates how the volume of the ...fidelity and assembly efficiency Five fragment lacI/lacZ cassette assembly was easily achievable with high...both the 12- and 24-fragment versions of the lacI/lacZ cassette were designed and synthesized. In conjunction...
  3. Plasmids 101: Blue-white Screening

    Type
    Blog Post
    Published
    June 4, 2015, 1:03 p.m.
    ...Scientists discovered that deleting a section from the lacZ gene (a mutation called lacZΔM15) creates a non-functional...well-characterized bacterial lac operon contains a gene called lacZ that encodes for the enzyme β-galactosidase...the plasmid containing the lethal gene. An example is the ccdB gene system commonly used in Gateway® Cloning...are rescued by genes supplied on the transformed plasmid. Such plasmids may contain genes that allow for...other methods. Positive selection vectors encode a gene which, when expressed, is lethal to the cell. Cloning...fragments are inserted into an MCS in the center of this gene, disrupting the lethality. This is similar to α-...(used to complement auxotrophic cell lines), or genes which rescue a lethal phenotype. Resources on the...
  4. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...Gal4 activator, bacterial LexA DBD and the lacZ reporter gene (3, 4), there are now many variations, including...activation sequence (UAS) of its target gene, in this case a reporter gene (e.g. luciferase or GFP), regardless...promoter of the reporter gene to activate expression (Figure 2c). The reporter gene then allows detection...Shapira S.K., Chou J. Beta-galactosidase gene fusions for analyzing gene expression in Escherichia coli and ...hybrid system (also called the interaction trap), genes encoding proteins of interest(POI’s) are fused to... in a yeast strain that also contains a reporter gene cloned downstream of a promoter containing the target... the “bait”, Figure 2b) cannot activate reporter gene expression on its own, but, if the two POI’s interact...
  5. Plasmids 101: Common Lab E. coli Strains

    Type
    Blog Post
    Published
    Nov. 7, 2014, 2:56 p.m.
    ...coli strains. Table 1: Common gene mutations found in E.coli strains Gene(s) Description Functional Consequence...specific genes are signified with a minus sign (-) as is typically standard; just having the gene listed...carefully selected the optimal promoter for your gene of interest, painstakingly cloned into the perfect...backbone, made sure to add the right tags to your gene, and may have even put a fluorescent protein downstream...methylation sensitive. dnaJ Mutation in a chaperonin gene Increases the stability of certain expressed proteins...encodes proteins needed for bacterial conjugation. Genes listed on F´ are wild-type unless indicated otherwise...overproduced, expression from pLac repressed more   LacZ β-galactosidase activity abolished   lacY Lactose...
  6. Choosing Your Perfect Empty Backbone

    Type
    Blog Post
    Published
    Aug. 19, 2014, 3:39 p.m.
    ...applications used to study gene function. From making transgenic animals, gene targeting and genome modifications...These vectors allow you to test the function of Your Gene Of Interest (YGOI) in a controlled environment under...design. You can create a new strain with a disrupted gene by transforming wild-type yeast with an integrating...involve using a reporter vector to tag YGOI with lacZ and/or GFP (e.g. pPD80_08) and following the expression...modifications to reporter vectors (e.g. pBV-Luc) and gene silencing (e.g. pLKO.1 - TRC cloning vector). Check...
  7. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

    Type
    Blog Post
    Published
    Sept. 1, 2020, 1:15 p.m.
    ...approaches increase the size of the gene delivered by splitting the gene into two pieces: part A and part...packaging of large genes in adeno-associated viral vectors results in effective gene delivery in mice. ...editing's PE2 enzyme do not. So how do you fit a big gene into a tiny vector like AAV? By breaking the transgene... fragmented genomes is the key to fitting large genes into AAV First, some history. In 2008, the Auricchio...part B. Each piece of the gene is then independently packaged into an AAV. When a cell is co-infected with...fragments reassemble and produce the full-length gene. Below are overviews and drawbacks of four split...1000bp overlaps to deliver the alkaline phosphatase gene to airway epithelial cells in mice. This vector ...
  8. Hot Plasmids December 2018 - C. elegans RNAi, TurboID, Detecting Viral Outbreaks, and Protein Binding Specificity Tools

    Type
    Blog Post
    Published
    Dec. 6, 2018, 1:34 p.m.
    ... allowing for the gene on the toehold switch to be expressed. In this case, the gene encodes the LacZ𝛼..., highly efficient RNAi construct for C. elegans gene knockdown Article contributed by Alyssa Cecchetelli...extensively used in C. elegans research to study gene function. RNAi is commonly achieved by feeding E...pathways making it difficult to link a phenotype to the gene being targeted via RNAi. Recently the Vellai lab...The standard RNAi vector, L4440, places a target gene between two inverted T7 promoters. Transcription... from each promoter progresses past the specific gene producing long unspecific RNA fragments that are...LacZ𝛼 complexes with LacZ𝜔 and forms an active LacZ tetramer.  This tetramer cleaves chlorophenol red-b-D-galactopyranoside...
  9. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

    Type
    Blog Post
    Published
    Nov. 1, 2018, 12:35 p.m.
    ...the ccdB gene is replaced by the gene of interest. As a result, cells that retain the ccdB gene die off...tool. The plasmid pKSCTMF contains the mazF gene and a gene for Zeocin resistance (Figure 2). This MazF-ZeoR...antisense RNA regulates hok gene expression indirectly through the overlapping mok gene." Journal of molecular... propagation of themselves and their associated genes. These systems better ensure that plasmids are passed...application of CcdB is GatewayTM cloning, where the ccdB gene serves as a counterselectable marker in the destination...death. The team used this cassette to knock out genes, knock in a GFP cassette, and introduced site-directed...toxin-antitoxin system to construct a stable synthetic gene circuit that can be used over prolonged periods....
  10. dTAG - You're it!

    Type
    Blog Post
    Published
    June 21, 2018, 2:06 p.m.
    ...expressing a control -- for example, an FKBP12F36V-tagged LACZ) with dTAG molecules in your biological assay of...endogenous ENL was inactivated using CRISPR/Cas9 gene-editing. Featured molecules: dTAG-7 and dTAG-13 ...endogenous MELK was inactivated using CRISPR/Cas9 gene-editing. Featured molecules: dTAG-7, dTAG-13, and...Homology Directed Repair Plasmids for endogenous gene tagging in human cells Resources on Addgene.org...
  11. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    Published
    Feb. 10, 2015, 3:06 p.m.
    ...genome; does not restrict methylated DNA fhuA2 lacZ::T7 gene1 [lon] ompT gal sulA11 R(mcr-73::miniTn10...IPTG. T7 RNAP is then available to transcribe the gene of interest from a T7 promoter on the plasmid. Many...
  12. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ... cassette to the gene of interest. The gene to be expressed is amplified using a gene-specific forward...sgRNA-targeted gene, resulting in increased activation of endogenous transcription of the target gene. The brilliant...of downstream genes. Nihongaki et al describe the targeted activation of endogenous genes and detail the...efficiency and gene expression. The pUCXKT vector ensures that all screened plasmids contain a gene variant*...resistance gene (missing the first two codons). Two stop codons are inserted between the truncated gene and ... inducible, gene knockdown with shRNA or shRNA-miR30, (2) tamoxifen-inducible CreERT2 gene deletion, (...on target gene activation. The novel dCas9-VPR activator is capable of enhancing target gene expression...
Showing: 1 - 12 of 12 results