We narrowed to 856 results for: IGH@

... sections of scientific articles (gasp). To my delight, not only was I able to make the edits without ...all about the MOI. In retrospect I used a way too high Cas9 MOI considering that A549 cells are relatively...robust cell line. If your cells are sensitive, it might be more difficult to get them to grow out. The only...presence of the band, you could run another gel that highlights the important results (for example, if you needed...a human cell line with a gene knockout was straightforward, and is a testament to how far genome engineering...David Root and is described in Rational design of highly active sgRNAs for CRISPR-Cas9-mediated gene inactivation...

...reporter that has a large dynamic range and high brightness. The Shu Lab from UCSF designed an improved...reporter that has a large dynamic range and high brightness. This reporter achieves approximately 100-fold...immune system, and cell turnover. Apoptosis is a highly controlled process that is triggered by internal...a TEV protease cleavage site. TEV protease is a highly specific protease that is commonly used to cleave...

...butterflies in your stomach, the virtual approach might be less stressful. For both conferences, there was...Bachle. (For presenters, there’s also less stage fright!)And depending on the conference, the audience ...can upvote a question and the host will see the highly voted questions,” says Zhang. “Usually the moderator...moderator starts by asking the speaker the highly upvoted question.”If the Q&A session ran out of time, ...for Everyone.  While this type of interaction might not work when you are giving a research talk, there...difficult in the virtual format than in-person. You might miss out on the short chats between sessions or ...

...match your needs. If YFG is thrillingly new, you might have to make a transgenic fly in order to study ...study it. The process is fairly straightforward. Basically, you place your gene of interest in a plasmid and... trying to overexpress or knockdown a gene, you might need different plasmids. Harvard’s DRSC/TRiP Functional...gene to select for transformed bacteria, but you might be wondering, “How do I know which of my flies have...integration will have eyes that are anywhere from light yellow to red. The variation in color depends on...strategy and the services offered by the company, you might have to map into which chromosome the transgene ...

...is an extremely useful technique that provides insight into protein:DNA interactions. ChIP works by using...exploring these interactions, and can give valuable insight into DNA expression and protein interactions, including...require crosslinking, which uses formaldehyde or UV light to create strong but reversible bonds. This will...options for this step are sonication, which uses high-frequency sound waves to break up the DNA, or enzymatic...attach the proteins to the DNA, depending on how tightly the proteins bind natively. But the amount of cross-linking...few rounds of adjustments, to get everything just right!  Fig. 2: Goldilocks is actually celebrating...

...neuroscience novice (newb). In this post, I’d like to highlight some of the things that popped out to me as a ...novice and indicate why other neuroscience newbies might want to get into the field. Find Optogenetics Plasmids... neuroscience but are afraid you don’t have the right kind of biological expertise to get into the field...’ve developed in your current work to make new insights in neuroscience. Even if you're currently a synthetic...interested in using AAVs because they provide a highly versatile means of delivering genes to many different...

...potential for microbial contamination. Additionally, the high activity of these enzymes implies that even a minute...a protein of interest). Mesophilic microbes are highly preferable (and successful) as host systems since...coli expressing the chaperones protein resulted in higher levels of growth compared to the E. coli strain...an outreach scientist from Addgene. The talk highlighted the importance of reagent repositories and the...leveraged for harmonious progress.     We’re always delighted to engage with potential collaborators and interested...

... activation and knew she was on the right track. The next insight was to assemble a synthetic transcription...bioengineering expertise? “This is the next step in high-throughput, genome-wide screening,” Konermann said...sgRNA library. Our SAM-mediated screens exhibited a high degree of consistency and validation with >80% effectively...software for analyzing the data. It should be straightforward to apply the new library for use in various...an engineered CRISPR-Cas9 complex. Konermann S, Brigham MD, Trevino AE, Joung J, Abudayyeh OO, Barcena ...

...microscope where the light source is mounted above (epi) the specimen and the excitation light passes through...cause a higher-energy electronic transition in a fluorescent molecule (see figure to the right). The excitation... proteins are excited by 750 nm to 760 nm laser light, enabling dual color imaging studies with blue or...fluorescent proteins (proteins that fluoresce after a light-induced chemical reaction) or photoconvertible Keade... Keade proteins (protein that undergoes light-induced irreversible photoconversion from green fluorescence...

...recommendations that postdoc salaries be raised to $50,000 - higher than the level being raised to now - across a wide...from postdocs and faculty (at time of writing, Brigham And Women's in Boston also just announced that ...before the injunction, are raising salaries, even in light of the injunction. In addition, PIs at some of the...Institute, where salaries had already been raised higher previously and all 6,000+ postdocs at the University...contract - negotiated by their union - securing higher salaries. This decision will carry over into other...information, many assumed that those living in areas with high costs of living would get much better salary increases...

... experience, we found that fluorescent proteins might not always be the best option. Fluorescent proteins...antibodies coupled to nanogold particles, that allow a high-spatial resolution of the protein localization. ...hypothesized that a different tag fused to the hM4Di might improve the transport of this DREADD to the plasma...even when fused to mCherry. But our data does highlight the importance of a careful characterization of... Proteins 101: GFP Fusion Proteins – Making the Right Connection.     Thank you to our guest blogger...

...market because of life-threatening health effects. Eight of these posed greater health risks for women than...cause human suffering and death. Doing research right has the potential to save lives and money. A 2014...innovations It is crucially important to get the research right from the beginning. This is the goal of Gendered...reasons why drugs fail - sex is one of them. Why might the sex of the cell be relevant? Research shows ...disparities in disease severity. Such disparities might suggest underlying sex-based influences on physiologic...curricula. Corporations need to integrate these insights into product design. But eyes have been opened—and...

... mind, when planning an experiment users should weigh the benefits of enhanced biosafety versus a potential...Tet-off transcriptional activation system to drive high levels of expression of certain viral components...manufacturer these changes result in yields up to 25x higher than other available systems. Producing lentivirus...obstacle in obtaining usable lentivirus is producing a high enough concentration, or titer, for your experiment...a double harvest approach at 48 and 72h produces high titer virus for transfer plasmids with small inserts...11589831. Jiang W. et. al.. An optimized method for high-titer lentivirus preparations without ultracentrifugation...

...overexpression construct is being delivered, that is a higher risk cargo for a researcher to come into contact...essential for cellular function, this would also be a higher risk vector. While it is unlikely that you, or ...other BSL-2 materials, you’ll need to use aerosol-tight caps, compatible with your centrifugation speed,...useful. Some organizations or cities may require a higher percentage of the decontaminate to be used for ...researchers. Note that safety policies will vary slightly from organization to organization, so you’ll need...cut a few corners. For many researchers, viruses might be the most dangerous things they work with, and...

...Although methods to switch on Cas activity using light or drugs have been developed, the field lacked an...anti-CRISPR proteins work? Anti-CRISPRs proteins are highly diverse but most block CRISPR activity one of three...Regulating Acr proteins by inducible promoters, light, or small molecules could achieve rapid, dynamic...allows anti-CRISPR activity to be controlled by blue light (Bubeck et al., 2018). 3. Reduce cytotoxicity of...pathogens possess CRISPR-Cas systems, phage therapy might not be as effective. This is where Acr proteins ...CRISPR Plasmids for Your Research Interested in light-inducible Cas9 activity? Check out these these plasmids...

...Association for Cancer Research Annual Meeting, you might consider including more background on how your virus...to expertly show off your science.  Prepare the night before: To avoid rushing out the door without your... tack up next to your poster. Arrive early: You might be nervous before your poster session, or it may...walk up to someone’s poster, and then he/she dives right into the background without an introduction. If ... in his/her work, and would enjoy hearing the highlights so that you can appreciate the impact of the ...

... use to introduce yourself and what you do. You might want to include your university and your advisor...new at a conference, one of the first things you might want to know is what their project is. Or maybe ...familiar with. You can tweak your elevator pitch slightly if you know a bit more about the other person....elevator pitch several times at the conference, you might notice some trends. Were there parts of your elevator... up on the board and meet your poster session neighbors. During the session, if someone comes up to my...and your resume and prepare business cards. You might not consider being a student or postdoc a “business...

...very powerful for high level recombinant protein expression. These systems enable high expression of very...biology research (eg. polymerases and other enzymes might be purified and used to manipulate DNA), or in medicine... through stable cell lines. Both methods produce high protein yields if transfection is successful. Some...if a desired protein product is toxic to cells at high concentrations. Despite their advantages, mammalian... promoter and induced by lactose, provides the highest level of protein expression. Despite their ease...

...Every few months, we highlight some of the new plasmids, antibodies, and viral preps in the repository...nucleocapsid RNA chaperone, RT: reverse transcriptase. Right: T1 tomato plants that inherited an edited gene ...rely on synthetic dye molecules, which are much brighter and more photostable than fluorescent proteins...Craggs, T.D., & Twelvetrees A.E. (2024) Kinesin-1 is highly flexible and adopts an open conformation in the...illumination regimes with fast activation kinetics and high responsivity near the resting membrane potential...

.../s12915-019-0682-0. Beck, C., Gong, Y. A high-speed, bright, red fluorescent voltage sensor to detect...the kinetics of voltage sensing to signal output slightly slower than other approaches. Functionally, the...photobleaching, lack of red-shifted indicators, and brightness of fluorescence all have room for improvement...transport, not fluorescence, they are not nearly as bright as the other GEVI systems that use engineered FPs...one component counterpart and is significantly brighter and available with red-shifted fluorophores (find...

... trying to perform high-throughput experiments. If a user wants to carry out a high-throughput genetic...the DSB. CRISPR has allowed scientists to tag and light up endogenous genes of interest to better understand...convenient one tube assembly reaction to generate high-throughput targeting vectors. These vectors can ...fluorescently-tagged proteins at endogenous loci, shedding light on previously unknown protein functions. References.... and Eric M. Jorgensen. “SapTrap, a Toolkit for High-Throughput CRISPR/Cas9 Gene Modification in Caenorhabditis...

...Every few months we highlight a subset of the new plasmids and viral preps in the repository through ...CRISPR corner By Jennifer Tsang Here are a few highlights from recent CRISPR plasmids. To find all of the...Plasmids and Resources page.  A new system uses light to deactivate photocleavable gRNAs within seconds... assembly of CRISPR/Cas9 constructs. zCas9i is a high efficiency intron-optimized SpCas9-coding gene. ...

...). I’ve assembled a series of screenshots to highlight changes to both the design and functionality of...involves delivering a calcium biosensor using AAV, you might decide you’d really prefer to order ready-to-use...look at filters in a moment. First, I want to highlight the convenient ways our new search tool lets you...you know the ID number for a plasmid, your straightforward search is now even easier with a direct link...

...making the purification process simpler. Due to its high yields, E. coli is often used for the production...transfection, depending on whether the heavy and light chain genes are contained to one plasmid or if they...on an SDS-PAGE gel. Once stained, the heavy and light chains become visible alongside your ladder and ...software. Any bands on the gel beside the heavy and light chains can also be measured. Contaminating bands...Rockberg J, Chotteau V. Small-scale bioreactor supports high density HEK293 cell perfusion culture for the production...capture process based on magnetic beads from very high cell density suspension. Biotechnol Bioeng. 2021...

...average, AAV.PHP.eB and AAV.PHP.S had 1.5- to 2-fold higher GFP intensity compared to the strains they were...were derived from. They also transduced a higher number of neurons overall (GFP+ cells that also stained...dendrites extend to. The keys to this method are 1) high levels of color diversity so that cells are labeled..., or blue (RGB) fluorescent protein (4a-c). When high doses of this viral cocktail are injected, by chance.... tet-off transactivator (tTA), is injected at a high dose to maximize the number of cells that are labeled...part system, color diversity is maintained at both high (figure 4e) and low doses (figure 4f) of the tTA...

...Kits can also have the annoying tendency to runout right when you need them and to accumulate a bunch of ...precipitated, dried, and then rehydrated. There are some slight modifications depending on the type of DNA you’... not bind silica or glass, but the addition of a high concentration of a chaotropic salt (guanidine hydrochloride...: agarose gel slices Product: DNA fragments You might be wondering, “How is milk going to help me extract...purify DNA ranging in size from 100 bp to 48 kb with high yields and without degradation during the extraction...nucleic acids. Containinants bind cellulose less tightly than nucleic acids, so placing the dipstick into...

... information about insert orientation, then you might consider designing orientation-specific primers....primers. Blunt end cloning is an example of when you might want to know the orientation of the insert. One member...with this and a few other colony PCR tips are highlighted below. Preparing template: Pick a single colony... liquid cultures. Lastly, you can start small overnight liquid cultures with the clones you pick and only...size. Make sure to use an appropriate molecular weight standard for reference and to add a loading dye...

...Genome-wide CRISPR/Cas9 screens are a high-throughput systematic approach for identifying genes involved...alternative to genome-wide RNAi screens, which although highly effective, are affected by low on-target efficacy...unclear if off-target cuts confound the results of high-throughput CRISPR screens. Do short guides (17-...mismatches more distal to the PAM, and 2) guides with high GC content have greater off-target activity. Short... with only a small loss of on-target activity in high-throughput screens. The human and mouse versions...measurement of off-target activity using Cas9 toxicity in high-throughput screens." Nature communications 8 (2017...

...which cuts at NRN PAMs with high efficiency, as well as NYN, but with a slightly lower efficiency. Information...available, it can be difficult to decipher which one is right for your unique experiment. Here, we will introduce...the genome and consider using a Cas9 variant with higher specificity (eSpCas9 and HypaCas9) instead.  Choosing...location and type of edit you need to introduce highly specific? Perhaps you need to introduce a single...choose from within the Cas family if Cas9 isn’t right for your experiment. Keep an eye out for our upcoming...

... advice on areas where you might need some help. Today, we’re highlighting an oft-underlooked transferable...skate as a starting point, their ideas scored 37% higher in originality. It may not be easy to optimize ...truly disagrees with the group (because they will fight more adamantly for their solution), selecting a ...power to change anything. You may not have the highest position or the longest tenure, but don’t let that...