Skip to main content
Addgene
Showing: 281 - 290 of 928 results
  1. Viral Vectors 101: AAV Variables That Matter

    Type
    Blog Post
    ...Using AAV vectors in complex biological systems can be tricky at best, and downright infuriating at worst...Serotypes Serotype refers to the different protein compositions of AAV capsids, which determine how a virus ...what works great in one system or cell type can completely fail in a different system (Issa et al., 2023...designing and testing your AAV.  Figure 2: Comparison of AAV serotypes 1, 2, 5, 6, 8, and 9 in two ...Taschenberger et al., 2017).     Figure 3: Comparison of two astrocyte selective promoters demonstrating...Konishi, Y., Hosokawa, Y., & Konishi, H. (2014). A comparative analysis of constitutive promoters located in...vector-mediated transduction of the corticospinal tract: Comparison of four promoters. Gene Therapy, 28(1–2), 56–...
  2. Plasmids 101: Dimers and Multimers

    Type
    Blog Post
    ...reduced transformation and transfection efficiency compared to the monomeric version of the plasmid (Maucksch...multimers have additional origins of replication compared to monomers, they are also able to replicate at...bacterial cells with multimers grow more slowly compared to those containing the monomeric version of the...and more prone to being lost in bacterial cells compared to monomers, although this can be prevented via...cannot be used to detect plasmid multimers. Some companies provide NGS whole plasmid sequencing services ...frequency of multimerization, and in some cases completely prevent the formation of plasmid multimers (Bedbrook...produced the highest yield of monomeric plasmid compared to DH5α. However, more research is needed to determine...
  3. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    ...binary systems. In recent years, a number of more complex systems have also been developed which don’t fit... Bujard, both the promoter and transactivator components of the system have been engineered and improved...revolutionized genetic studies in flies. An additional component, the GAL80 repressor, adds a repressible element...UAS-driven gene expression. To further increase the complexity of the system, researchers have used split GAL4... developed by Lai and Lee. LexA/lexAop is a complementary system to GAL4/UAS that functions in essentially... cells and ~24,000-fold in human HeLa cells as compared to basal expression. Co-expression of repressor...because it allows them to be used together for complex genetic analysis in Drosophila or for precise control...
  4. Science Career Options

    Type
    Blog Post
    ...technology, and good computer skills will give you an advantage. Strong writing, computer skills (Word, Excel...you can fully investigate and solve a problem or complete a project, overcoming inevitable failures and ... Nature Photographer/Artist Ecologist     Computer and writing skills Writing a thesis or dissertation...which are useful to many employers. Increasingly, computer skills are highly desired, as roles are becoming...Will you be coordinating projects? Do you need computer programming skills? Other things to consider...as forensics currently have too many applicants compared to the number of available roles). Make your resume...
  5. Choosing Your Fluorescent Proteins for Multi-Color Imaging

    Type
    Blog Post
    ... interested in are compatible with your microscope optics, you will want to compare the excitation and...fluorescent proteins currently available. Choosing compatible fluorescent proteins To choose a set of fluorescent...scope of this post. Are your fluorescent proteins compatible with your microscope optics? To determine if ...is efficiently collected by the microscope. To compare the match between a fluorescent protein and a filter...here's a screenshot from the Chroma Spectra Viewer comparing a standard Cy3 or Rhodamine filter set (Chroma...channels used for more abundant proteins or marking compartments. I hope this sheds some light on multicolor ...
  6. Plasmids 101: Mammalian Vectors

    Type
    Blog Post
    ...Jurkat T cells Complexes with DNA; causes strand scissions 100-400 ug/mL *Not comprehensive.   ** In eukaryotes...cells. Of course, these mammalian vectors must be compatible with the cell type they are tranfected into –...cells. Before getting into the mammalian plasmid components, it may be useful to describe the means of introducing...called transfection. Transfection is somewhat comparable to bacterial transformation (the introduction...void. These ORIs, however, require additional components expressed in trans within the cell for effective...ORIs, respectively. The presence of these viral components greatly reduces the rate of plasmid dilution ...
  7. Expanding the Targeting Scope and Editing Efficiency of Adenine Base Editors

    Type
    Blog Post
    ...change. Because of this, ABEs are only weakly compatible with many Cas domains beyond SpCas9. In order...lab set out to evolve ABEs with an increased compatibility to Cas homologs. Evolving better base editors...and editing speed and consists of the following components: A plasmid in the host bacterium expressing ...phage mutation rate Phage infection results in a complete ABE protein. If the phage delivers an active variant...variants with much higher base editing activity compared to the original TadA-7.10 enzyme. After testing...which edits 590-fold faster than TadA-7.10. It is compatible with all Cas9 and Cas12 homologs that the researchers...adenine base editor with improved Cas domain compatibility and activity. Nature Biotechnology. https://...
  8. Enabling Precision Functional Genomics with the Target Accelerator Plasmid Collection

    Type
    Blog Post
    ...loss-of-function or neutral, as compared to wild type, would be extremely helpful as a complementary approach. Also, ...characterized? Some have developed exciting computational algorithms, such as SIFT or PolyPhen to approach... Genetic Pathway Reference Set. These Gateway-compatible entry clones are the product of many years of...cancer phenotypes. These assays were designed to complement the one assay per gene approach that has been...genes. These should be used to create ever more complete “look-up-tables” of mutant function that could...approach: Phenotypic Characterization of a Comprehensive Set of MAPK1/ERK2 Missense Mutants. Brenan L...
  9. Screening for Successful Genome Editing with Digital PCR

    Type
    Blog Post
    ...clones for complete functional knockout of your target gene. Mismatch nuclease assays are completely “blind.... The drop-off probe is designed to perfectly complement the wild type sequence and is not capable of ...precision genome editing workflow. Digital PCR comparison to other validation methods As mentioned, these...96-well plate without prior quantification. Comparatively, mismatch assays require between 200 and 500... in a high background of wild type targets. Comparatively, detection limits of about 5% mutant targets...PMC3773023. 7. Vouillot, L., Thélie, A. & Pollet, N. Comparison of T7E1 and surveyor mismatch cleavage assays...
  10. CRISPR 101: Non-Homologous End Joining

    Type
    Blog Post
    ...this complex holds a pair of DNA ends together, forming a paired end complex The paired end complex then...then ligates compatible DNA ends together, thus repairing the break. This is a simplified, streamlined...processed. Processing occurs prior to ligation as incompatible DNA ends interfere with that step. Accordingly...pop-in” insertion) provided a template containing compatible overhangs is available. Cas9 can also be altered...Biochemistry and Biophysics and the Lineberger Comprehensive Cancer Center at UNC Chapel Hill.   References...
Showing: 281 - 290 of 928 results