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We narrowed to 1,002 results for: Des

Showing: 541 - 560 of 1002 results
  1. Protein Tagging with CRISPR/Cas9: A Conversation with Mendenhall and Myers

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    Blog Post
    ... also easy to run things in parallel. Addgene: Besides being fast and efficient, what other challenges...wanted something that would allow automation. This design cuts out weeks of waiting and hands on labor. That...Addgene, now these can be available to anyone for a modest cost without having to start all over or write ...
  2. Plasmids 101: Blue-white Screening

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    Blog Post
    ...bacterial lac operon contains a gene called lacZ that encodes for the enzyme β-galactosidase. Expression of the...process is called α-complementation. The system described above was put to practical use in the following...Although blue-white screening is probably the most widespread way to select for plasmids containing an insert...
  3. CRISPR 101: Non-Homologous End Joining

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    Blog Post
    ...and does not consider the missing or damaged nucleotides that are common to biological sources of DSBs...better substrates for ligation. Although we do not describe these steps here, the processing of DNA ends tends...of the canonical Cas9 approach. A pair of CRISPR guides that flank regions of hundreds of base pairs or...
  4. Human Germline Editing Using CRISPR

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    Blog Post
    ...donated skin, blood and semen samples. Ma et al. designed plasmids containing Cas9 and two different gRNAs... at 3 days post fertilization. Since Ma et al. designed a repair template with two synonymous mutations...thus quieting some fears about the creation of “designer babies.” The differences in editing between iPS...
  5. CRISPRainbow and Genome Visualization

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    Blog Post
    ...ortholog requires a different PAM sequence, a gRNA designed for one dCas9 should be specific to that ortholog...boxB Magenta boxB-MS2 White boxB-MS2-PP7 Despite the success of Ma et al.’s approach, fluorescently...genome editing. Such a system has been previously described for transcriptional activation/repression and ...
  6. It’s Bioelectric! An Exciting Interdisciplinary Field of Research

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    Blog Post
    ... In frogs, ectopic expression of ion channels, despite having an otherwise normal genomic background, ...Subsequent cutting results in a two-headed worm, despite the fact that it’s genetically wild type  (Oveido...fluorescent voltage indicator with near-complete desensitization in continuous light. ArcLight Q239 - A GEVI...
  7. Plasmid Tools for Microbiome Studies

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    Blog Post
    ...transfer origin as well as a selectable marker and a desired genetic payload (ex: GFP). Thus, cells can be both... RNA toehold switch, a RNA hairpin that can be designed to bind and detect nearly any RNA sequence. Downstream...components for gene disruption or CRISPRi. While designed to study the bee microbiome, these broad-host-...
  8. Viral Vectors 101: An Introduction to AAV

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    Blog Post
    ...serotypes The names of AAVs contain two numerical designations, separated by a slash, that indicate the ITR...interested in expressing multiple small genes, you can design single rAAV vectors with multiple genes packaged... an option (McCarty et al., 2001). This AAV is designed so that the single stranded DNA folds back on ...
  9. Transferable Skills Guide: Public Speaking

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    Blog Post
    ...you labeled your gene of interest incorrectly on slides 8-16. Your notes disappear. The wrong version of... speaking is hard. Aside from the diving board charades, I doubt anyone but me remembers any of the incidents... biomedical field, with very little text on the slides and notes instead of written speeches. When you...
  10. Antibodies 101: Polyclonal Antibodies

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    Blog Post
    ...is tested following each immunization until the desired level of antibodies is reached - typically within...within 2-4 months. After the animal has the desired level of antibodies in its bloodstream, the antibodies...species. Pre-adsorbed polyclonal antibodies are designed for experiments where antibodies raised in several...
  11. Teaching an Old DOG New Tricks: Controlling Protein Activity with GFP

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    Blog Post
    ...GFP-labeled cells. Once Tang and Cepko found a description of GFP-binding nanobodies, the project really...stable inside cells. Nanobodies binding GFP were designed in 2009. Subsequent work showed that nanobodies...green-red Cre-lox systems. T-DDOGs can also be designed with other DNA-binding domains, including the ...
  12. The Future of Research Symposium Boston 2015

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    Blog Post
    ...growing dialogue on the state of a system that, despite all of its successes, has many deep-rooted flaws...all bad, however - there are some signs that the tides may be turning. In 2013, the NIH announced its first...in Scientific Training (BEST) awards, which are designed to support new approaches that address the need...
  13. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

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    Blog Post
    ...non-coding RNAs (lncRNA). lncRNAs are over 200 nucleotides in length and lack an open reading frame, so ...transcription machinery of a target gene or DNA that codes for ncRNA. CRISPRa, on the other hand, recruits ...which targets RNA instead of DNA and selectively degrades RNA molecules. This system is often used to knock...
  14. Viral Vectors 101: Calcium Sensors

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    Blog Post
    ... There are several calcium reporters specially designed for the aims and requirements of in vivo studies...populations of interest. Many of the calcium sensors described are also already packaged into viral vectors and... L, Campbell RE. Structure-and mechanism-guided design of single fluorescent protein-based biosensors....
  15. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

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    Blog Post
    ...throughout the library preparation process and includes Picogreen quantification of various intermediate...sequences for Illumina sequencing as well as unique barcodes per sample so we can assign sequencing reads to... use a modified version of the Python program described by Joung et al. 2017, which we hope to make available...
  16. Tips for Technical Support Calls

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    Blog Post
    ...plasmids and pooled libraries were originally described in a peer-reviewed scientific publication. We ...scientists answering their technical support questions (besides Addgene, I know both Abcam and NEB have Ph.D.s ...believe that scientists who contact customer service deserve prompt, courteous responses. No one is likely to...
  17. 5 Tips for Troubleshooting Viral Transductions

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    Blog Post
    ... try amplifying the viral vector with bacteria designed to minimize rearrangements such as NEB Stable ...production of virus. Alternatively, if the virus encodes a fluorescent protein, the packaging cells could...working with, there’s a lot that goes into virus design, production, and transduction. Once you’ve harvested...
  18. Penn Vector Core Partnership with Addgene

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    Collection
    ...Addgene partnership to provide AAV viral preps, includes listing of transfer status for viral preps....vectors See Addgene's Current AAV inventory , which includes all viral vectors transferred from the Penn Vector...
Showing: 541 - 560 of 1002 results