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  1. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    ...decreased p-values of known ricin regulation genes compared to results generated using non-targeting guides...full-length (19-20 bp) or short (17-18 bp) guides. When comparing the toxicity of guides that have 1-bp mismatch...off-target sites, short guides had reduced toxicity compared to full-length guides. Reduced toxicity of short...
  2. Fluorescent Proteins 101: Aptamer Fluorophores

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    Blog Post
    ...laser cleavage and an RNA aptamer that bound the compound malachite green (MG) to create a non-protein based... 4-hydroxybenzylidene imidazolinone (HBI)-like compound allowing it to fluoresce, the Jaffrey lab asked...production have also made aptamers an important component of high throughput assays with microarrays and...
  3. The Challenges of Cell Culture

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    Blog Post
    ...line identity and purity making it easier for comparable studies to be performed on a cell line even decades...passage number, cell line, and date, which you complete each time you passage the cells (as well as recording...through working for a variety of pharmaceutical companies including GSK, AstraZeneca-MedImmune, and Infors...
  4. Plasmids 101: The Promoter Region – Let's Go!

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    Blog Post
    ...promoter present in your plasmid backbone must to be compatible with the type of RNA that needs to be made: if...speaking, promoters in bacteria are less diverse and complex, having fewer parts than those in eukaryotic cells... repression in the presence of glucose or by competitive binding of the anti-inducer fucose Weaker. Commonly...
  5. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

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    Blog Post
    ...then following transduction, the partial genomes complement each other to restore the full-expression cassette... has equal or higher transgene expression when compared to using a single over-sized vector, but not always... one of the transgene’s endogenous introns or comprised of non-endogenous sequences, such as a 77bp long...
  6. Treating Muscular Dystrophy with CRISPR Gene Editing

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    Blog Post
    ...regularly. Dystrophin and genome editing Since complex oligonucleotide treatment comes with many challenges...desirable. Should stem cell editing occur, the CRISPR components would only need to be expressed for a short period... with vastly reduced inflammation and necrosis compared to unedited animals. In grip strength, specific...
  7. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

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    Blog Post
    ...system, Sanes and Lichtman also developed a complementary Flpbow construct that is functionally similar...technique will provide important insights into the complicated physical organization of the brain and other ...Intestinal crypt homeostasis results from neutral competition between symmetrically dividing Lgr5 stem cells...
  8. CRISPR 101: Homology Directed Repair

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    Blog Post
    ...recombination intermediates can then resolve to complete the DNA repair process Homology directed repair...is elongated and ligated to fill the gap, thus completing SDSA.   Break-induced repair (BIR) pathway BIR... uses reverse transcriptase to generate the complementary ssDNA. Easi-CRISPR was shown to increasing editing...
  9. 10 Steps to a Perfect Science Talk

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    Blog Post
    ...get people to remember you). What better way to accomplish all of these things naturally than to give a ...simplicity of their slides and how the slides complement the spoken message. Learn from their level of... topics that are unfamiliar to you because the company you are visiting works on them. Of course, if some...
  10. How to Design Your gRNA for CRISPR Genome Editing

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    Blog Post
    ...Gene knockout with CRISPR technology is usually accomplished by Cas9-mediated dsDNA breaks: following a cut... accessibility due to chromatin status). No computational prediction is ever perfect, but this can decrease...to conduct genetic screens, however, a library composed of the latter would likely be more effective, ...
  11. Building Global Connections with the International Mentorship Program USA-EUROPE

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    Blog Post
    ... a post-program self-assessment, participants completed follow-up self assessments and program evaluations...knowledge and skills had improved significantly when compared to their pre-program self-assesment. Achievements...other countries. In 2016, we expect the program to comprise over 2000 participants (mentors and mentees). ...
  12. Viral Vectors 101: Optogenetic Tools

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    Blog Post
    ...stimulation. GPCR signaling GPCR signaling is a complicated process involving many downstream signaling mechanisms...applying optogenetic tools derived from direct comparative analysis of microbial opsins. Nature Methods,...
  13. A History of Genome Engineering in Popular Culture

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    Blog Post
    ...In 1976, the world’s first genetic engineering company, Genentech, was founded.  This commercialization...instead of recognizing nucleotide triplets, the components recognize individual nucleotides. This imparts...intracellular pangenesis to the rediscovery of Mendel. Comptes Rendus de l’Académie des Sciences - Series III ...
  14. Transferable Skills Guide: Teamwork

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    Blog Post
    ...transfer expert who understands the somewhat complicated Material Transfer Agreement process that kits...function. Project team A Project Team is assembled to complete a series of tasks with precisely defined goals...organization on the planet, in which case whoa! Mission accomplished! One example of a mission-based team in academia...
  15. Antibodies 101: Validation

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    Blog Post
    ...validation is so important. Antibodies are a critical component of the researcher toolkit due to their ability...will bind to - particularly when you start using complex samples such as whole cell lysate or tissue sections...BioRender.com.     Orthogonal Strategies This approach compares target expression of antibody-independent approaches...
  16. Special Delivery: Fluorophore Targeting for FRET Studies

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    Blog Post
    ...attached fluorophore. However, since tRNA suppression competes with natural chain termination at stop codons,...contrast can be improved using disulfide-containing compounds such as British anti-Lewisite (which was originally...Vilensky & Redman, 2003]). Most importantly, these compounds cross cell membranes, thus enabling FRET measurements...
  17. Hot Plasmids Podcast Episode 2: New RFPs, AAVs, & More

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    Blog Post
    ... this segment Hot Plasmid 1: The Tol2 Gateway-Compatible Toolbox for quickly generating zebrafish transgenic.... Listen to Our Segement on the Tol 2 Gateway-Compatible Toolbox  Hot Plasmid 2: AAV Vectors for tageting...
  18. DIY DNA Ladders from Penn State University

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    Blog Post
    ...Get Tips on Verifying Your Plasmid Table 1: Comparing Typical Comericial Ladders with the PSU Ladders...1000 Lanes Cost $200-$500  <$10 $20-30 Cost Comparison: While convenient, commercial ladders cost between...
  19. Streaking for Single Colonies: The Streak Plate Challenge

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    Blog Post
    ... 1. Lab B needs a redo :-( @SandTBioSci #CompetitiveStreaking @Addgene pic.twitter.com/mk44J4Gcj9 — Dave...species for the challenge, but one species always outcompeted the other species.  When he found the chromoprotein...
Showing: 621 - 640 of 901 results