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We narrowed to 898 results for: CAN

Showing: 501 - 520 of 898 results

  1. Synthetic Photobiology: Optogenetics for E. coli

    Type
    Blog Post
    Published
    Sept. 8, 2015, 2:30 p.m.
    ...also not suitable for spatially limited studies and can fluctuate with changing culture conditions. The use...of these problems; inexpensive tools such as LEDs can be engineered to deliver precise, consistent, and...Complicated patterns of light intensity and wavelength can be used to study dynamic processes. Conversely, varied... TCS activated by green light; these two systems can be coexpressed for sophisticated control of gene ...dynamic range of these systems ensures that they can be used with many types of proteins, including Cas9...

  2. Addgene Welcomes John Doench to the Advisory Board

    Type
    Blog Post
    Published
    Aug. 13, 2015, 2:30 p.m.
    ...look like... when it looks good, that’s a high that can last for several days.” Working with CRISPR Recently... genes are involved in biological process X, you can do with CRISPR technology...” and “with CRISPR, just...specific edits to the genome. Such characterization can be done in a low throughput way now, but Doench says...screening) such that thousands of individual edits can be studied quickly. Involvement with Addgene Although...] success and your success moving forward.” You can give Dr. Doench your own welcome in the comments ...worked on using RNAi screens to learn more about cancer biology in Ed Harlow’s group at Harvard Medical...

  3. Plasmids 101: Blue-white Screening

    Type
    Blog Post
    Published
    June 4, 2015, 1:03 p.m.
    ...techniques. If you are interested in reading more, you can find the rest of the Plasmids 101 posts here. Now...covered antibiotic selection here at Plasmids 101, we can talk about an even more specific method of screening...expression). When expressed, the β-galactosidase enzyme can break down a dye-linked substrate called x-gal (5...small fragment is inserted in-frame, read-through can lead to a functional β-galactosidase enzyme and a...take up the α-complementation plasmid. This way you can quickly and easily identify colonies that not only...-white screening is a good way to narrow down candidates for more specific analysis, like PCR or restriction...substrate in defined medium, without which the cells cannot reproduce to form colonies (used to complement ...

  4. Finding and Joining Your Dream Lab

    Type
    Blog Post
    Published
    April 8, 2014, 2:50 p.m.
    ... Choosing a lab can be a major decision. A science trainee will spend 4-7 years working for one person...not be the driving factor. The following questions can serve as a guide for the quest of a perfect "fit"...this is one case where the topic of your research can make your transition easier – choose a lab that works...goal is to spend as much time in the "zone" as you can. You know you are in the zone when you lose track...always be in the zone, but even brief stays there can make all the difference. Choose a lab that brings...does one stand out amongst a pool of successful applicants and get chosen to work in his or her lab of choice...also includes a useful list of questions for a candidate to ask lab heads, lab members and lab neighbors...

  5. Plasmids 101: Mammalian Vectors

    Type
    Blog Post
    Published
    March 25, 2014, 3:15 p.m.
    ...plasmids do not naturally exist in mammals, scientists can still reap the benefits of plasmid-based research...is fairly straightforward and the resultant cells can either express the plasmid DNA transiently (similar... to the cell, is expressed from the plasmid, and can be assayed conveniently. A direct test for your gene...selection; however, negative selection techniques can be used in conjunction with positive selection to...for mammalian expression – instead use G418. This can be confusing since the neo/kan gene confers G418 ...

  6. Generating Mouse Models Using CRISPR/Cas9

    Type
    Blog Post
    Published
    July 12, 2016, 2:30 p.m.
    ...to avoid handling embryos ex vivo, the components can be electroporated into the oviduct of pregnant females...Delivery, or GONAD (Gurumurty et al., 2016). AAV can also be used as a vector to deliver CRISPR/Cas9 either...Alternatively, the gRNA, Cas9, and donor oligonucleotide can be electroporated into the mouse zygote (Qin et al...mechanisms rush in to repair the damage. If all they can do is stitch the two broken ends together through... an oligonucleotide or plasmid), precise changes can be made in the genome via the homology directed repair...from the fact that CRISPR is so efficient that you can inject the reagents directly into fertilized mouse...compared to more conventional methods. First, one can work with almost any strains of mice, as compared...

  7. A Primer on Optogenetics: Introduction and Opsin Delivery

    Type
    Blog Post
    Published
    Sept. 10, 2015, 2:30 p.m.
    ...specific type of neuron in a specific brain region can result in a particular neurotransmitter release or...tools required for each one? Behavioral Optogenetics can be broken down broadly into three main steps: 1)...about the many different opsin variants and how they can be used is to consult the many primary research papers...neuronal subtype. However, the length of promoter that can be used in an AAV construct is limited to only a ... stereotaxic surgery (stereotaxic surgery videos can be found on youtube [above] and jove). Delivery of...frame with a digital readout. The advantage is you can “zero” your coordinates at bregma which allows you...protocols on stereotaxic surgeries for viral injections can be found here [5, 6]. Opsin transgenic mice Transgenic...

  8. New Coomassie Protocol Video

    Type
    Blog Post
    Published
    Oct. 31, 2023, 1:15 p.m.
    ...protocol can easily be adapted for other types of proteins.    If this video is helpful, you can find our...

  9. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

    Type
    Blog Post
    Published
    April 4, 2019, 12:53 p.m.
    ...undomesticated which limits the tools scientists can use to study them. For example, gene knockdown with...into diverse bacteria species. Existing protocols can transfer CRISPRi into a single bacterial strain, ...selection markers, gRNAs, and dCas9 proteins. Second, it can be introduced into a broader range of bacteria. Once...ICEBs1 carries the genes needed for conjugation, but can also carry cargo genes, like Mobile-CRISPRi. The ...understanding the basic biology of bacteria, Mobile-CRISPRi can be used to identify antibiotic resistance genes. .... Key takeaways of Mobile-CRISPRi Mobile-CRISPRi can be used in non-model bacteria species where its modular...PMC6424567. Peters, Joseph E. "Tn7." Mobile DNA III. American Society of Microbiology, 2015. 647-667. PubMed...

  10. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

    Type
    Blog Post
    Published
    Feb. 7, 2019, 2:16 p.m.
    ... For example, you can analyze experiments designed outside CrispyCrunch, or you can input pre-existing...CrispyCrunch While CrispyCrunch may evolve over time, you can depend on it to stick to a few guiding principles...the acceleration of science. It's open-source. You can see all the current code on GitHub, ask us questions...weight (which ranges between 0 and 1) so that they can be used in the rank equation above. Cut-to-insert...between 0 and 1) (shown in the graph below) so that it can be used in the rank equation above. Generally, the...with NGS data were: Crispresso CrispRVariants AmpliCan We chose to adapt Crispresso by Luca Pinello ...completed a MSc in Psychology at McMaster University in Canada. He's happy to be contributing again to science...

  11. Common Injection Routes in Mice

    Type
    Blog Post
    Published
    Jan. 22, 2025, 9:42 p.m.
    ...and the mice. While not an exhaustive list, these can include what’s being injected, the type of experiment... and restraint method. Many different substances can be injected, including cells, drugs, DNA, viral vectors...to these as “tail vein injections.” However, they can also be given retro-orbitally, behind the eye. IV...technique, as it requires intubation of the mice, which can be tricky given their small size. This technique ...nose, they also pass through the upper airways and can target the airways before the lungs. This is most...tears or punctures to the throat. The feeding tube can be flexible or metal, depending on researcher preferences...

  12. Academic vs. Industry Postdocs

    Type
    Blog Post
    Published
    Nov. 13, 2018, 1:22 p.m.
    ...academic vs. industry postdoc  Time: Academic postdocs can be long—5 years or more, especially in the biological...AstraZeneca, this is three years. This time limit can feel like a lot of pressure. However, it means that...has ties to industry, the drug discovery process can be a bit of a mystery to graduate students in academia...immersed in that environment sooner rather than later can be helpful. Publishing: As a postdoc at AstraZeneca...AstraZeneca, you are expected to publish, but this can vary depending on which company you choose. If publishing... In this scenario, finding someone with whom you can have an in-depth discussion about your project might...have less time to explore scientifically since you can’t afford to spend too much time working on something...

  13. PITChing MMEJ as an Alternative Route for Gene Editing

    Type
    Blog Post
    Published
    Feb. 23, 2016, 3:30 p.m.
    ...Using their PITCh plasmids, GFP knock-in cell lines can be created in about a month and a half, without the...In contrast, the short homology required by MMEJ can easily be added via PCR amplification. Given the ... is a robust method for genomic insertion. PITCh can also be adapted for whole-plasmid integration if ...expressing GFP from a given promoter, and the technique can be adapted to other transgenes. It’s important to... of MMEJ represents another strategy researchers can exploit for CRISPR gene editing. In organisms where...interesting to see what new editing possibilities MMEJ can enable. References 1. Sakuma, Tatsushi, et al. (...

  14. Drew Endy Introduces the Biobrick Public Agreement Plasmid Collection

    Type
    Blog Post
    Published
    Dec. 12, 2013, 3:35 p.m.
    ...functional composition. In other words, these parts can be used over and over again in combination with novel...wants to develop a language for programming life. We can work backwards and say for this to be successful ...still missing? Endy: That's a great question. You can see that we have the beginning of control around ...mostly to the imagination. The question is: what can you use biology to make? If you think about the BIOFAB...someone to forward engineer a system of 10 genes. You can now forward engineer a 10-gene system to do something...to its users and to the design community: If you can begin to reliably put together 10-gene systems, what...

  15. New Western Blot Protocol Video!

    Type
    Blog Post
    Published
    March 28, 2023, 1:15 p.m.
    ...Running a Western blot can be a bit daunting for first-timers. That's why we gave our written protocol...share tips for this tricky application.    You can check out all of our protocols on our Protocol page...

  16. Plasmid Grant to Aid Cervical Cancer Screening in Ghana

    Type
    Blog Post
    Published
    Nov. 8, 2016, 3:30 p.m.
    ...to order plasmids she can use as positive controls in PCR-based cervical cancer screens. This third grant...these screens can then undergo more routine screening allowing for early cervical cancer detection, treatment...that Gladys will be using plasmids in a way that can potentially have a direct impact on human health .... Cervical cancer screening in Ghana Gladys is currently working to enhance cervical cancer screening ...wrote in her application, “Cervical Cancer is the leading cause of cancer related morbidity and death among...developing countries” and “Almost all cervical cancers are caused by persistent infection of HR HPV types...To start her work, Gladys will improve cervical cancer screening for a limited group of Ghanaian women...

  17. Addgene's Cancer Collection Pages Connect the Research Community

    Type
    Blog Post
    Published
    Sept. 6, 2016, 2:30 p.m.
    ... is our own immune system, which can recognize antigens on cancerous cells and eliminate them from the...Tackling Cancers' Drug Resistance with a New Screening Kit Learn How the Clon Tracer Library Can Be Used...suppressors and upregulation of proto-oncogenes ­­­can directly inhibit the ability of a cell to undergo...demonstrated that a number of novel small molecules can bind directly, albeit weakly, to K-Ras and inhibit...list of all available Addgene plasmids he or she can use to study it (as seen in the screenshot below)...Additional Resources National Cancer Institute: Cancer Statistics Page National Cancer Institute: Ras Pathway...tens of millions of new cancer cases arise and millions of people die from cancer-related complications ...

  18. Comparing Cas9 to NgAgo: Can the Argonautes Best CRISPR?

    Type
    Blog Post
    Published
    June 9, 2016, 2:30 p.m.
    ...Argonaute. They identified NgAgo and showed that it can cleave plasmid and genomic DNA in a variety of mammalian...DNA guides may be more user-friendly, since they can be ordered as oligonucleotides and should be stable...transcribed, and changes in gRNA secondary structure can affect editing efficiency. Gao et al. tested if NgAgo...key advantage over Cas9, for which gRNA sequence can greatly affect editing efficiency. Smaller size ... so NgAgo remains faithful to its guide DNA and cannot switch guides. While this fidelity would prevent...

  19. Addgene is Expanding Our Viral Vector Service!

    Type
    Blog Post
    Published
    Oct. 15, 2024, 1:15 p.m.
    ...increased choice and flexibility; while ensuring we can maintain high standards for both our depositors and...banner on their material page. Interested scientists can expand the banner to select their serotype of choice...’d like, and submit the request. Request details can be accessed within your Addgene account. Preps will...Request prep 6–9 weeks after placing your order.  Can I order Packaged on Request preps through a distributor...packaged DNA and serotype. Please note that Addgene cannot perform functional or in vivo testing. We recommend...

  20. Networking and Inspiring Young Scientists at Freshers Fairs

    Type
    Blog Post
    Published
    Nov. 17, 2015, 3:30 p.m.
    ...many years of study to come. Some Freshers Fairs can include fairground rides and other fun activities...between undergraduates and PhD students so that they can help support each other and provide advice. The society... develop a network of fellow scientists that you can grow with, learn from, and mentor while pursuing ...provide strong foundations upon which young scientists can build powerful networks and we encourage them them...
Showing: 501 - 520 of 898 results