...addition to this cis cleavage, the authors showed that Cas14 could indiscriminately cleave ssDNA in trans like...variants share the presence of a predicted RuvC nuclease domain, characteristic of CRISPR-Cas enzymes. ...and more complex Cas9 and Cas12 proteins. Cas14 cleaves ssDNA But what is the function of this new system...bacteria strain. They found that Cas14 could bind and cleave a targeted sequence of ssDNA. Unlike Cas9, Cas14...for instance, the enzymes are activated and can cleave fluorescent probes of dsDNA and RNA in trans. Fluorescent...30337455. Additional resources on the Addgene Blog Learn more about DETECTR Browse all of the CRISPR blog...

...GreenGate are type IIS restriction endonucleases. They are like other endonucleases except that they cut at arbitrary...lab.” Introducing GreenGate As Lohmann and his colleagues describe in the PLoS ONE paper that introduced...be very careful with the type IIS restriction endonuclease of choice, BsaI, which can be very sensitive...to temperature fluctuations. He says their lab learned the hard way after the cloning method, which had... They finally traced the problem back to the endonuclease. “It’s just a sensitive protein,” he says. “...longer works, just trash it.” Lohmann and his colleagues including Joachim Forner now expect and hope ...

...thing. I experienced it, and many of my scientist colleagues have as well. Making the transition from the ...something. The thrill of having an experiment yield clear results and being the first, and for a very brief...family three times during a 10 minute conversation. Leaving a tight-knit team like that can and will be a little...world imagines when they think “scientist.” But leaving the bench does not mean you’re not a scientist ...culture shock above, but after polling some Addgene colleagues, we’ve come up with a list of things to consider... It’s a lot easier to manage your time. As my colleague Mike Lemieux told me, “I find that at a desk, ...non-scientists! Maybe you’ve just spent 5-10 years learning to “speak science,” and virtually every person...

...soon. To request other nucleases or other features and functionalities, please email [email protected] by Jessica Roginsky, Scientific Support Lead at Synthego. Article source: Step-by-Step Guide ...read the paper on bioRxiv.   Using the ICE tool Learning how to use the ICE software tool is quick and ...that need optimizing and no complicated steps to learn. For increased flexibility and scalability, the ...Protospacer Adjacent Motif (PAM) sequence for the nuclease used. Currently, ICE is configured for Cas9 fromStreptococcus...guaranteed editing with the CRISPR Gene Knockout Kit. Please contact us at [email protected] if you have ...guest blogger, Jessica Roginsky. Jessica Roginsky leads the scientific support team at Synthego. Her work...

...improve nuclear localization of fluorescent proteins, they found that adding a triple nuclear localization...ever like to write about a recent plasmid deposit please sign up here.  Here's what you'll find in this ...TEV), a highly sequence-specific protease used to cleave affinity tags from purified recombinant proteins...techniques to introduce time modulation of the TEV cleavage and improve utility of the system for use with...localize to the right places, which can provide misleading information on where exactly a structure or protein...found that too high expression of these markers can lead to non-specific labeling. They generated plasmids...includes 95 plasmids consisting of CRISPR/Cas nucleases, base editors, gRNA backbones, and promoters for...

...very difficult and very time consuming to treat. Learn How Antibiotic Resistance Genes Are Used in the ...susceptibility test (Figure 2), and requires at least 18-24 hours to obtain results. While this is not...our recent blog post on CRISPR antimicrobials to learn how scientists are using CRISPR to fight bacteria... schools, and households by observing proper cleanliness and personal hygiene standards. Handwashing is...essential component of preventing infection, as is cleaning and disinfecting frequently touched surfaces like...scary to think about, but we can all do our part to learn all we can, and minimize both our risk and the risk...Sheet  Additional Resources on the Addgene Blog Learn How Antibiotic Resistance Genes Are Used in the ...

...Everything I know about virus, I learned from Addgene,” or “I learned to clone from the Addgene website...country. In China, direct shipments weren’t able to clear import control. Partnering with a distributor allowed...repository by making it easier to find materials and learn about them. As early as 2007, we began grouping ...their lab, in their experiments, to enable virtual learning during the pandemic. Feedback like that lets us... not done yet… in fact, we may never be! We’ve learned that increased accessibility is achieved through...Through updating and expanding our website, we’ve learned about the importance of smaller, systemic changes...to easier, faster, more reproducible science and learn what Addgene can do to help. More resources on ...

...viral vector for our service; leave a comment; or take our AAV survey. Learn more about GCaMPs and other...editor of Addgene’s eBooks — including the recently released Viral Vectors 101 2nd edition — I was incredibly...in 2016. We realized we could apply the lessons learned from our plasmid lab to develop a reliable and ...It could be a matter of timing, as jGCaMP7 was released relatively soon after GCaMP6. It could be a matter... vector service. But in the years since, we’ve learned so much about what it takes to make these viral... Vectors 101 eBook and blog posts. The lessons learned from this process have shaped and supported our...growth and development. We’ve shared what we’ve learned, through manuscripts (Ersing et al., 2023; Haery...

...researchers and publishers. Nonetheless, the initial release caused a storm as the organization left open the...comprised of numerous objections and concerns. Perhaps least compelling of these were those from researchers ...unlikely. Usually, the originating scientist and colleagues are privileged in viewing their data months or...in reproducing experimental data are likely, at least in part, due to our inadequate cataloguing of how...endless types of data). Rather, PLOS appears to leave the scope of data to be shared to individual authors... intimidated by having to contact more senior colleagues. Secondly, science is highly technical and this...product. If we don’t take interest in how it is released, we will be in danger of having to deliver on ...

...C-terminal tags for mTagBFP, TagRFPt, EGFP, mVenus, mCerulean3, mKOFP2) and empty vectors that have standard...expression from these polycistronic cassettes could lead to comparable experimental results. Using PiggyBac...monocistronic expression of either variation of Klf4 did not lead to the observed reprogramming discrepancies. The...Listen to our mScarlet Podcast Segment    Photocleavable protein PhoCl expands optogenetics toolbox ... mechanism - the PhoCl protein is irreversibly cleaved when exposed to light. Robert Campbell’s lab illustrates...repository. These variants can be used as tools to learn about the influence of structure on an FP’s properties...results argue that transcription activation by SOX2 leads to its reprogramming effects. Plasmids from the ...

...is still important. It needs to express value, clearly communicate exactly what a site offers to their... for users to get where they desired. It became clear to us that we needed to improve search and navigation...as simplifying the page, and making it all look clean and easy to use.  Easily search for plasmids (and... new search bar is now front and center, with a clear call to action - Search! Along with this we’ve also...element. We also set out to make sure the page looked clean, professional, and modern. Instead of trying to ...next science challenge. If you have any feedback, please contact us and let us know how you’re feeling.  ....  Additional resources on the Addgene blog Learn more about Addgene's new search tool Read more about...

...for you, if you can identify them in yourself and learn how to sell them. Types of Conflict Before explaining... on something and a disagreement festers, it can lead to hurt feelings, low morale, poor decision making...situation. If left unchecked, this type of conflict can lead to people disagreeing with each other just for the...the real source of the conflict. It can be easy to leap to the conclusion that a conflict is personal (”... listener, but I aspire to  be. If you don’t at least aspire to be a good listener and consciously practice...wanted. However, a poorly brokered compromise could leave everyone feeling vaguely unsatisfied. In arbitration...than either A or B, but the two parties will have learned that by working together, they can create unique...

...enzymes. Note that when using the nuclear fix/perm buffer to label intranuclear proteins of interest, you can... ligases; and many more. This process, however, leaves the nucleus intact. If markers of interest are ...can label cytosolic proteins alongside the intranuclear ones. You do not need to use a separate fix/perm...typically used. Inside the cell, the ester group is cleaved off by enzymes, turning the resulting molecule ...You made it through this blog post and hopefully learned a few new methods of target visualization beyond...specific downstream applications, while maintaining a clean cell surface, dump gating is a useful way to get... labeling can be performed on cytosolic and/or nuclear markers. Lastly, stains, based not on antibodies...

..., because leaky expression of toxin could select for mutations in the toxin itself (leading to counter-selection...gene with an antibiotic resistance cassette. This leaves a “scar” in the chromosome, sometimes interfering...ways to create scarless mutations, ones that don’t leave any undesired scars in the chromosome. These methods... The resolution step (“double crossover”) which leads to the desired mutation and excision of the vector... paper. We selected the three toxins so that at least one might be useful in a broad array of pathogenic... switched over to pTOX. However, we feel it has clear advantages, and are hopeful that continued development...Plasmids 101 blog posts Find our CRISPR blog posts Learn more about Lambda Red recombineering Resources ...

...protein’s reading frame, leading to the production of a smaller, but at least partially functional protein...individual experiences progressive muscle wasting leading to death at around 30 years of age. Despite the...depositor Charles Gersbach used paired zinc finger nucleases to remove exon 51 in DMD patient myoblasts. They...force, and other muscle tests, muscle function is clearly improved, although not to wild-type levels. With...that dystrophin restoration is maintained for at least six months. Future directions and obstacles to clinical...through genomic excision of exon 51 by zinc finger nucleases. Mol Ther. 2015a Mar;23(3):523-32. PubMed PMID...PMC4393360. Additional Resources on the Addgene Blog Learn How CRISPR Could Be Used to Treat Cataracts and ...

...its endonuclease activity to generates a ssDNA substrate which is then nicked by its endonuclease domain...engineered Learn about the parts of the AAV transfer plasmid  Resources on Addgene.org Learn about AAV...of Rep78 and Rep68 contains a DNA-binding and endonuclease domains, all four Rep proteins share a common...virion assembly, the role of MAAP has not been clearly defined yet. Now you’ve got a basic understanding...AAV RepCap plasmid! Check out this blog post to learn more about the AAV transfer plasmid! References...

...By mutating one of two Cas9 nuclease domains, researchers created the CRISPR nickase. Nickases create...mutation inactivates the RuvC domain, so this nickase cleaves only the target strand. Conversely, the H840A mutation... in the HNH domain creates a non-target strand-cleaving nickase. Instead of cutting both strands bluntly...distances (40 - 130 nt). From these results, it’s clear that editing is much higher in the PAM-out configuration... At the AAVS1 locus, the two nearest gRNAs had cleavage sites 12 nt and 13 nt away from the target site...wide margin, exhibiting >20% repair efficiency. Clearly, a nickase strategy can expand the targetable region...post. Additional Resources on the Addgene Blog Learn about Homology Directed Repair 3 Tips to Improve...

...Careers in Science Communication blog series, you’ll learn about Caitlin Runne-Janczy, a Product Development...While her love of educational science writing is clear, Caitlin’s career plans weren’t concrete when she...what I wanted to do, but knowing that I wanted to leave the bench.” Her path to figuring out her career ...writer.” At the end of her postdoc, Caitlin had a clearer idea of her career goals: “My plan was to go into...for part two of Caitlin’s interview where you can learn what it’s like to work for a science education company...series!  Additional Resources on the Addgene Blog Learn more about alternative science careers here Be like...while in grad school Resources on Addgene.org Learn more about careers at Addgene ...

...non-academic career Learn more about alternative science careers here Resources on Addgene.org Learn more about...series was written for selfish reasons: I wanted to learn about careers in science communication. When I started...away-from-the-bench career option. So if you’re interested in learning more about science communication careers, you’...was a science writer, reached out to me. She was leaving a writing position and looking for someone who ...s paid off. Work is never boring. “I just keep learning on the job. It keeps it interesting.” And while...topic, but I haven’t met any.” A few other tips: “Learn HTML, write a lot to make sure you don’t hate it...

...depurination, the hydrolysis of the glycosidic bond leads to the release of a purine (adenine or guanine) from the...DNA are repaired by base excision repair, but can lead to mutations in single stranded DNA undergoing replication... from E. coli is the presence of the protein endonuclease I encoded by the gene endA. Nowadays, the most...gene has been removed/mutated to neutralize the nuclease activity. For strains that still carry this gene...introduced in the purification protocol to remove endonucleases activity. For these reasons choosing the correct...most downstream processing. On the other hand, nuclease free water is a great option because it provides...