... in Paris and New York. We want YOU to join the fight against coronavirus We are just at the beginning...be the next scientist joining in this worldwide fight against SARS-CoV-2. As we’ve all been affected in...that we have to stick together (6 feet apart), to fight the new Coronavirus. To help get you started, here... sites - so cloning projects should be fun and straight-forward. All constructs are tagged with a 2xStrep-tag... gave a lot of background in our study - so you might want to be careful with these clones (and help us... research. For all these reasons, the QCRG is delighted to be partnering with Addgene, who will be taking...bloggers Manon Eckhardt (left) and Melanie Brewer (right) from the University of California, San Francisco...

...fold increase in brightness after ~100 action potentials. This is about twice as bright as GCaMP7f and ...action potential, GCaMP7s is approximately twice as bright, relative to baseline fluorescence, as the GCaMP7f...GCaMP7f variant, and is approximately 5-fold brighter than GCaMP6s. jGCaMP7f is the fastest responding variant... variant. jGCaMP7b exhibits the brightest resting fluorescence and can be used for imaging small neuronal...processes (dendrites and axons). jGCaMP7c exhibits high contrast between peak fluorescence and resting fluorescence...lowering sensor resting fluorescence, while maintaining high peak fluorescence) and is useful for imaging signaling...

...convince your potential employer that you are the right candidate for the job. How can you incorporate the...you need to have a good idea of what should be highlighted on your resume, and tailor the resume for the...programs to predict protein structures, then you might know a thing or two about computer modeling. Make...transferable skills Some of the skills you developed might not have come from the research itself, but from...universities actually have career services offices. You might think only undergraduates use these services, but... work well with your life and career plan? This might be a tough question to ask now, but the earlier ...

...standard) and reflects a desire for very high MOI on top of very high coverage. Please see this paper for ...that this will require co-delivery of two AAVs at a high MOI, often resulting in a drop in transduction coverage...particles into the same cells in vivo? A: This will be highly dependent on vector dose. The color diversity in...experiments using PHP.eB in the brain give some insight into codelivery efficiency at different doses. ...liver transduction. While we have not tried it, it might be worth investigating for both Q6 & Q7.For epithelial...that we have in house!), which seems to me a very high dosage. Any thoughts?  A: The question refers to...

...and 31 times higher, respectively. In rice protoplasts, Xie et. al observed slightly higher mutation rates...this system is clearly also robust enough to ensure high levels of gRNA cleavage.   Xie et. al constructed...nucleotides to the 5’ spacers. The 3’ ends were modified slightly with either a 1-7 base poly(U)tail in tRNA-gRNA... had biallelic mutations at all five loci. This highly efficient multiplexing further illustrates the ... Dimeric CRISPR RNA-guided FokI nucleases for highly specific genome editing. Tsai SQ, Wyvekens N, Khayter...

...plasmid may be expressed at higher than normal physiological levels due to high copy numbers. This creates...isolation, a well-defined genetic system, and a highly versatile DNA transformation system.Unlike most...similar to bacterial plasmids and are considered “high copy”. A fragment from the 2 micron circle (a natural...pombe plasmids oftentimes utilize an ARS to aid in high transformation efficiency; however, this region ...antibiotic selection when working with yeast, due to high rates of spontaneously occurring resistant mutants...in the cell, thus allowing the yeast to maintain higher copy numbers. Additionally, improvements in antibiotic...

... (TMP-tag) (Miller et al., 2005). Although this tight interaction is not covalent, later work showed that...systems can be complicated to implement, they can be highly specific with a small and minimally-disruptive ...  Applications Organic dyes are typically both brighter and more photostable than fluorescent proteins...in a new fluorescent ligand and see the results right away. Or perform pulse-chase experiments by sequentially...membrane. So, you should investigate your options and weigh the potential benefits and costs before investing...investing in one approach or the other. Finding the right tag for you Protein-based tags typically provide ...the fluorophore’s microenvironment to enhance brightness, stability, or other properties is an active ...

...clone out of 104 to 105 colonies. Pro Tip: Use a high-fidelity Taq polymerase with proof-reading ability... center of the sequence. Since lambda red has a higher recombination frequency when the lagging strand...strands. One of the two oligos will recombine with a higher efficiency than the other and you’ll find out empirically...frequency between 0.1% to 1%, and can be increased to as high as 25-50% by designing oligos that avoid activating...deletion of >20 nucleotides 1 out of 104 to 105 Use a high fidelity Taq polymerase to generate insert ssDNA...these strains, expression of exo, beta and gam is tightly regulated by the endogenous phage promoter pL and... allows for a mobile recombineering system, but tight regulation of expression is required for a successful...

...Nye in their lab coats handling glassware with brightly colored hazardous liquids. Working in a lab is...school, med school, industry) Other roles you might see Lab manager: managerial duties ex: order materials...makes them excited to do what they do. I would also highly recommend talking to other undergraduate researchers...choosing a good scientific mentor and choosing the right lab. Remember that your time is valuable! Don’t ...scientists are all just people. I’ve found that in the right environment and with supportive mentors, being open...was a bit of a foreign concept to me when I was in high school, but I’ve learned the value in finding mentors...broadening your experiences! These applications can be highly competitive, so asking for help from mentors and...

...by large DNA recognition sites, which makes them highly specific.  Jurassic Park by Michael Crichton was...Jurassic Park (1997, 2001, 2015, and 2018) were highly successful in the box office, indicating the insatiable...increase specificity. This modular approach made ZFNs highly appealing to researchers.  TALENs In 2010, transcription...travels. The movie sees the USS Enterprise crew fight against a genetically engineered superhuman Khan...cellular DNA repair machinery, which can lead to high frequency of indel formation in the genome and are...involves The Rock and his super giant albino gorilla fighting off a monstrous wolf and crocodile, that were ...Editing Trading Card seen in this blog post?Download high resolution versions here.  Many thanks to our guest...

...Addgene we've set out to fill this gap by both highlighting that researchers do learn MANY transferable ...the lab and by offering advice on areas where you might need some help. Today: Teamwork. My first experience...was I to dispute history? And boy did I make the right decision. If I’d spent my senior year isolating ...colleagues, I can also orchestrate the formation of high-functioning-but-temporary teams that have a specific...providing technical customer service. Team members are highly trained, and though there are necessary redundancies...skills - you just want the necessary skills. You might find that your next paper is going to require help... of more than one person. A selfish part of you might not want another person’s name on your next paper...

... antibody has arrived, hooray! Before you jump straight into the exciting new experiments that you’ve ... their ability to bind to molecular targets with high affinity and specificity. However, there are countless...validation in different applications. Here, I want to highlight the general suggestions given by the International...your bioinformatics skills (or your friendly neighborhood bioinformatician) to look at RNA expression ... tissues.  From this data, you see that there is high RNA expression in the retina and in parts of the...binding to something unexpected. This approach has high specificity, but you need to be aware of any possible...for immunocapture applications and is amenable to high-throughput analyses, however, it requires access...

...significantly reduce costs of producing plasmids with high-throughput methods that save on reagents, consumables...many labs are quite happy to share, labs that get high volumes of plasmid requests can end up refusing ...traditional PCR/digest/ligate methods and picking the right one can save you time if you’re working at speed... that works for your experiment. Make your work “high-throughput” Instead of making one plasmid at a time...t scale or have limited scaling. The downside of high-throughput work is that you give up a lot of flexibility...minute experiments or changes. Fun fact: Addgene’s high-throughput approach means we virtually always use... Addgene Blog 5 factors to help you choose the right cloning method Find blog posts about scientific ...

...abilities of the lesser-known Cas enzymes while also highlighting their similarities and differences to Cas9. ...therapeutic delivery.   Cas14 – Mini, but single strand mighty Unlike many other Cas enzymes, Cas14 targets ssDNA...ssDNA instead of dsDNA. It cleaves ssDNA with high fidelity - sensitive to even a single mismatch in the...sequence. Why would you want to give it a go? The high specificity of Cas14 makes it a promising detection... Fast facts – PAM requirement: none. Best for: high fidelity ssDNA targeting. RNA targeting Cas enzymes...enzymes are worth taking a look at. Choosing the right Cas can really put your experiments Nsync.   References...

...conformational state may change. If your protein might become slightly denatured during your experimental protocol... or a goat) is injected with an immunogen. This might be the full-length protein that you want to generate...that recognize your target protein without causing high background due to cross-reactivity. When to use ... in many labs. Polyclonal antibodies also have a high sensitivity to the target protein due to their ability...or recombinant antibody instead. Otherwise, you might experience variability in the strength of staining...strength. In general, polyclonal antibodies produce a higher level of background noise compared to monoclonal...

...given problem, Empowers the writer, And offers insight into a career as a Professor. Step 1: Your ...time to review the literature and offer educated insight into what the desirable features of future technologies...field. Research strategy The Research Strategy highlights i) the significance and innovation of the project...statements. While some of the statements may be slightly far reaching, remember that you are writing a ...text. Specific aims The Specific Aims section highlights each milestone that must be met in order to deem...

...basics of the technology. In this blog, we will highlight some common MoClo applications and kits. Keep ...beyond what we discuss. If you can think it, MoClo might help you achieve it! MoClo applications and specialized...cassettes (Shaw et al., 2023). Those looking to express high levels of their gene of interest in yeast should...10.1021/acssynbio.6b00337. Lee, Michael E., et al. “A Highly Characterized Yeast Toolkit for Modular, Multipart...s12870-020-02388-2. Stuttmann, Johannes, et al. “Highly Efficient Multiplex Editing: One‐shot Generation...doi.org/10.1111/tpj.15197. Grützner, Ramona, et al. “High-Efficiency Genome Editing in Plants Mediated by ... Addgene blog Plasmids 101: Golden Gate Cloning High Complexity Golden Gate Cloning with NEB’s DAD New...

...post was contributed by guest blogger Sean Mac Fhearraigh, co-founder of www.assaygenie.com. No matter ...required and no one lab or professor becomes an overnight success. Below I have detailed some tips to improve...in different fields that can provide different insight into an area - not just working within the established...and possibly a new perspective on the field. 3. Highlight your network and your collaborators It’s a good...collaborators can also help you get some critical insight into what you're doing wrong. All this helps to...  Many thanks to our Guest Blogger, Sean Mac Fhearraigh! Seán was a PhD student at University College...

...Left) The light chain and heavy chain genes of the antibody are encoded in a plasmid. (Right) An assembled...If you were born before 1985, you might remember going to the store and buying CDs when you wanted to...cell line. The genes encode the heavy chain and light chain for the antibody and when translated into ... reagents. These include conventional heavy and light chain recombinant monoclonal antibodies as well ...encoding antibodies, scientists will be able to make higher affinity antibodies, modify antibody function, ...10.1080/19420862.2018.1445456 Crosnier C, Staudt N, Wright GJ (2010) A rapid and scalable method for selecting...

...Every few months we highlight a subset of the new plasmids and viral preps in the repository through ...be easily visualized.  The tool-kit consists of highly useful vectors compatible with Gibson and Saptrap...CRISPR corner By Jennifer Tsang Here are a few highlights from recent CRISPR plasmids. To find all of the...Rex's lab.  vfCRISPR, or very fast CRISPR, is a light-inducible CRISPR system developed by Taekjip Ha’...target DNA without cleavage until it's activated by light. Once activated, Cas9 cleavage can induce DSBs within...