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We narrowed to 965 results for: tes

Showing: 501 - 520 of 965 results
  1. FastCloning: A Newer, Simpler Cloning Technique

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    Blog Post
    ...sensitive restriction enzyme DpnI to remove the templates. Digestion products are then transformed directly...that the exonuclease activity of the polymerase generates sticky ends in the PCR reactions. These sticky...time to completely digest the template DNA. Note—templates must have been isolated from methylation competent...
  2. Choosing Your Perfect Empty Backbone

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    Blog Post
    ...carry in the target cell. These vectors allow you to test the function of Your Gene Of Interest (YGOI) in ...collection of empty backbones that have been designed, tested, and published by academic scientists. To help ...a mutated strain or a mutated version of YGOI to test the different phenotypes of the specific mutations...
  3. The Stingy Scientist: How the Baby Gel Box Was Born

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    Blog Post
    ... can’t safely recycle these materials either.  Test tubes aren’t cheap everywhere Lab supplies and equipment...thrifty streak.  One of the most accessed blogs on BitesizeBio is the protocol for making your own Taq polymerase...I got good at this despite the fact that my lab mates thought this was hilarious.  Birth of the baby gel...
  4. Choosing a Good Mentor for Scientists

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    Blog Post
    ...labs have websites listing alumi and it is easy to use publication records, university websites, ResearchGate... lunch or beer) and in 1:1 conversations. This creates a level of familiarity and confidentiality to ensure...
  5. Safe Port in a Storm...How Addgene is Weathering the Pandemic

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    Blog Post
    ...building that someone from a different company had tested positive for COVID-19 (it turned out to be an unfounded...operations until our normal work resumed. Addgene distributes and fulfills requests for scientists doing almost...type of biomedical science research. Our work accelerates and enhances productive collaborations as well...
  6. Science Careers: Unruly Interests Feed Many Paths

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    Blog Post
    ...is mind-boggling. Unlike a mountain – with many routes up and only one destination – a career in the sciences...molecular pathways, I found myself curious about other routes – In terms of both types and topics of work. A ...rare organisms so I found it hard to stick to vertebrates alone.  And a longstanding inclination to be ...
  7. Single-cell tracking of lineage and identity with CellTag

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    Blog Post
    ...cell type that can differentiate into hepatic or intestinal cell types. MEFs were reprogrammed into iEPs ...least day 13. However, distinct transcriptional states were seen as early as day 6. All together these...in a competitive transplant assay in the mouse intestine, demonstrating its utility in long-term tracking...
  8. Summer SciComm Series: Master of SciComm

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    Blog Post
    ...scicomm group project on the Leith river. Photo courtesy of Leonardo Ramos.  I enrolled into a summer...industry. Along this road, science communication graduates are often well-equipped. Many institutions are...explores risk-taking behavior among collision sport athletes, as well as the ethical and health policy implications...
  9. New and Upcoming Viral Vectors - December 2019

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    Blog Post
    ...avoid off target photostimulation of axons and dendrites on neighboring neurons. We have also packaged ... AAV in smaller aliquots of 20 ul for serotype testing to help you pick the best AAV for your experiment...control plasmids in new serotypes. See our Serotype Testing AAV inventory for the entire collection! Plasmid...
  10. Why Add Sucrose? Improved Yields for Adeno-associated Virus Preparation

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    Blog Post
    ...shown that cells treated with sucrose or other osmolytes to induce hypertonicity display enhanced monoclonal...impaired endocytosis. In parallel assays designed to test the endocytosis of a fluorescent dye and transduction...host of other AAV serotypes; it will be exciting to test this approach with different capsids. Most importantly...
  11. In Vivo Biotinylation of Bacterial Fusion Proteins

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    Blog Post
    ...Avidin and its derivatives have four biotin-binding sites per molecule so, theoretically, saturated avidin...were unable to cleave TEV within the protein we tested, it may be possible with other fusion proteins ...bacteria significantly enhance protein folding (tested using real science). Make a stock solution of 2.5...
  12. Plasmids 101: A Brief History of Plasmids and an Improved eBook!

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    Blog Post
    ...of heredity were thought of as everything from parasites, to symbionts, to genes and the labels applied... the National Academy of Sciences of the United States of America 110.39 (2013): 15521–15529. PMC. PubMed... the National Academy of Sciences of the United States of America 70.11 (1973): 3240–3244. PubMed PMID...
  13. Antibody Guide

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    Guide
    ...response has developed, the antibodies are collected, tested against the antigen, packaged, and sold. This is...immortalized B cells). The genetic reorganization that creates variety in the antibody allowing for their extreme...class therefore has a valency, or number of binding sites available per antibody unit, which is typically ...multiplied by two, as each antibody has two binding sites. Isotype Description Configuration and Valency Subclasses...Monomer with a valency of 2 IgE Protects against parasites and is responsible for driving allergic reactions...in the lab. Check for and record any expiration dates. Buffers Buffers are a concern for conjugating and...reaction in the presence of several different substrates. The luminescence produced by the reaction can...
  14. Plan Your Experiment

    Type
    Guide
    ...additional sites throughout the genome. These sites are called off-targets. Be aware of off-target sites when...efficiency. So while testing multiple gRNAs is a good idea for most CRISPR experiments, testing multiple pegRNA...efficient mRNA delivery into the mouse zygotes and facilitates CRISPR/Cas9-based genome editing. Scientific...that there could be downstream translation start sites that could allow for expression of a truncated protein...PAM sequences or Cas9 enzymes with flexible PAM sites . Base Editing : Target the site of your desired...complement to your target sequence with no homologous sites elsewhere in the genome. In reality, a given gRNA...genetic cargo (in this case, CRISPR components) integrates into the genome. Lentiviral vectors are a good...
  15. Quantifying DNA? Here are Five DNA Quantification Methods to Consider

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    Blog Post
    ...measures these absorbances using UV-transparent cuvettes. First you measure the absorbance of the buffer...-2 ul of sample and the run time is just a few minutes per sample. During the run, DNA fragments move ...quantified over time using a fluorescent dye that intercalates into the DNA such that smaller fragments are...
  16. Fluorescent Protein Travel Awards - FLiPs and Fluorescent Protein Biosensors

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    Blog Post
    ...variety of research applications and particularly notes their ability to be precisely spatio-temporally ...down the HMO of interest, the lactose released activates expression of GFP from the lac operon. GFP expression...Light to Control CRISPR Genome Editing Choose the Brightest Fluorescent Protein for Your Experiments Resources...
  17. Celebrate National Book Month with Addgene

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    Blog Post
    ... to read a little more this October. Science favorites Musicophilia: Tales of Music and the Brain by ...Communications and Marketing Coordinator Non-science favorites  The Mistborn series by Brandon Sanderson "The... reader of historical fiction (I can personally attest to this!). Following history from the Ice Age to...
Showing: 501 - 520 of 965 results