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... depending on your flow cytometer’s setup. For instance, BV510 and AmCyan have almost identical emission...and how do I fix it? When plotting two channels against each other, you should be able to draw perpendicular...single-color APC control, with APC and APC-CY7 plotted against each other. Since it is a single-color control,...After increasing the compensation values for APC against APC-Cy7, the populations are in more of a straight...compensation value of five was applied to APC-Cy7 against APC to correct for this bleed. A compensation value...population is not a double-positive population and is instead due to bleeding, you will see the populations move...

...Wyss Technology Development Fellow at the Wyss Institute and Harvard Medical School. Scientists making ...drive? The simplest way to make a gene drive is to insert an endonuclease gene within its own cut site1. ...spreads through the wild population and immunizes it against the first drive. Laboratories interested in building...question), why not use them whenever applicable?Against this, consider the cost of an accidental release...accidental release could delay real-world applications against scourges such as malaria and dengue for many years... Holm, D. G. & Suzuki, D. T. Genetic Control of Insect Populations: I. Cage Studies of Chromosome Replacement...

...such as PX459, which encodes Cas9 and contains a site for inserting a custom gRNA.  While this methodology...translation delays editing What are Cas9-gRNA ribonucleoproteins? One alternative approach, which avoids many...Schier laboratories. Delivering Cas9-gRNA ribonucleoproteins  An advantage of performing CRISPR experiments...vivo applications. This technique utilizes Cas9 proteins harboring receptor ligands (C in the figure above...., et al. "Cationic lipid-mediated delivery of proteins enables efficient protein-based genome editing...

...causes the proteins and genomic DNA to precipitate. Plasmid DNA is free in solution. Proteins and genomic...the same principles: cells are lysed, RNAs and proteins are removed to leave you with DNA. This DNA is...you lyse the bacteria and denature the DNA and proteins in solution. The pH is then lowered using a renaturing...phenol chloroform extraction to remove remaining proteins and RNase. Finally, DNA is precipitated with alcohol...identical to that of commercially available kits but instead of binding DNA to silica columns, it’s bound to...

...expression while proteins needed for later experiments (cellular tracking for instance) can be controlled...Tamoxifen is added. Tamoxifen then binds to the ER-LDB domains of the fusions allowing Cre/FLP translocate to ...fluorescent cytoplasmic markers (e.g. eYFP) and synaptic proteins (e.g. postsynaptic PSD95-mcherry) are used in ...In order to analyze the function of individual proteins in neuronal circuits or synaptic remodeling, researchers...is fascinated by the question of how genes and proteins coordinate billions of neurons to form the functional...

...these experiments can be done in days to weeks instead of months to years. In the plant sciences “transient...evaluate its function. In nature Agrobacterium contains a plasmid with a T-DNA (transfer-DNA) region. ...pSB166 - pL2_pSB90_tMAS::rLUC-I::pMAS. Fluorescent proteins (FP, e.g. GFP) can be used in many ways. Often...from Agrobacterium. Test different Agrobacterium strains We used the disarmed Agrobacterium tumefaciens ...plants using syringe agroinfiltration." Recombinant proteins from plants. Humana Press, 2009. 41-50. PubMed... 5.02 (2003): 103-115. Hu, Ching-yeh, et al. "Intrinsic GUS-like activities in seed plants." Plant cell...

...with higher specificity (eSpCas9 and HypaCas9) instead.  Choosing a Cas9 for site-specific modifications... effects. The SpG variant, discovered by the Kleinstiver group has a PAM of NGN (Walton et al., 2020)....system can be used with a variety of impaired Cas9 proteins (such as SpRY) with altered PAM requirements, ...facilitates recruitment of multiple activation domains to the same genetic locus via co-expression of ...epitope tagged dCas9 and antibody-activator fusion proteins. The Synergistic Activation Mediator complex, ..., R. T., Christie, K. A., Whittaker, M. N. & Kleinstiver, B. P. Unconstrained genome targeting with near-PAMless...

...terminator. Created with BioRender.com. The Sainsbury Laboratory Golden Gate Cloning videos made by ...according to their concentration, size, and the desired insert-to-vector ratio using the equation in Figure 3....plasmid volume for MoClo experiments. The term ‘insert’ refers to plasmids carrying each part, ‘vector... the ‘amount of vector’ and the ‘molar ratio of insert to vector’ can be defined by you.   Save time...each transformation and/or use different E. coli strains with higher transformation efficiency. If you’re...We strongly encourage you to sequence the entire insert region of your final plasmid or those you are selecting...

...origin of replication (ori), where DNA replication begins, so a bacterial plasmid needs a compatible ori ... divide. In transient transfection, the vector remains episomal, meaning it stays separate from the genome...synthesis, and the neomycin resistance gene protects against any of them. But different aminoglycosides work...options doesn’t end there. Make sure you read the instructions for whatever antibiotic you choose to ensure...to spontaneously develop resistance to selection toxins. Auxotrophic selection is useful for producing ...researcher may choose not impose selection on cells and instead to use a vector with a reporter, such as a fluorescent...

...yourself needing to brainstorm with a team. One major challenge with these brainstorming sessions is avoiding...with unlimited time? Another strategy for your brainstorm session is to start with something completely... students during an interview. When they were instructed to use the three-ring binder as a starting point...people to agree with the most prominent idea, and instead building an environment where everyone has their... ideas that I have found helpful in my team brainstorming sessions.  Allow the group time to think about...

...pharmaceutical companies, biotech start-ups, health insurance companies, and governments on the most effective...physicians and patients, shaping discussions with insurance companies about the pricing and coverage of drugs...situations might be especially challenging. For instance, the client might need to get a large amount of...occasions, clients can be excessively demanding. For instance, a client may offer a lot of pointed feedback ...understanding of the molecular behaviors of chemicals and proteins to learn how a particular drug or medical device...therapeutic approach brings to patients, doctors, and insurance providers, and is crucial to how our clients’ ...

...unstable in vivo due to poor folding and thermal instability at 37°C (Ouellet et al., 2016) and requires a...riboswitch, metabolite binding to the riboswitch instead activates Spinach fluorescence. In the search for...identified the nucleotides that contribute to the instability of Spinach, and were able to develop an aptamer...Spinach, a miniaturized version of Spinach that retains similar levels of fluorescence when bound to DFHBI... cell imaging. Bunch of baby spinach, or BoBS, contains tandem repeats of Baby Spinach. It was developed... Aliyah Weinstein...

..., R., Weinstock, G., Metzker, M. et al. Genome sequence of the Brown Norway rat yields insights into mammalian...organism in microbiology and biochemistry. Certain strains have been specifically developed to thrive in laboratory...extensive research history and characterization. Many proteins and processes naturally found in E. coli have ...amphibians in science with early research providing insight into some of the most significant and fundamental...), 565–571. https://doi.org/10.1159/000323761 Modlinska, K., & Pisula, W. (2020). The Norway rat, from...

...to reveal even more insights. Super-duper lipid editor And if recruiting proteins to the cell membrane...photoswitchable elements into many other types of proteins. Here, we’ll highlight a few recently-deposited...et al., 2022). Stopping traffic with CIB1-Rabs Instead of using an optogenetic module to activate or recruit...such a strategy to dissect the roles of three Rab proteins during a key stage of zebrafish development (Aljiboury...(Aljiboury et al., 2023). Rab family proteins support vesicle trafficking and organelle dynamics, but ...

...reporter constructs), in functional analysis of proteins (to perform alanine scanning mutagenesis or targeted...should be resistant to Cas9 cleavage. If a plasmid contains the template, site-directed mutagenesis can be...which is dam+). Methylation deficient bacterial strains can be identified by the dam13(-) mutation – you...you’ll want to steer clear of these strains when preparing the plasmid template for site directed mutagenesis...functional regions of the plasmid including the insert. This is essential since mutations are potentially...PubMed PMID: 2448875. 4. Xia, Yongzhen, et al. "New insights into the QuikChangeTM process guide the use of...

...whether you are perusing classic papers or are brainstorming new technological innovations. Let’s take a ...blotting to screen founder transgenic animals for the inserted transgene because Southern blots have a lower ...digests. A researcher can test the orientation of an insert in only a few hours at low cost with restriction...do not typically rely on Sanger sequencing but instead use methods like pyrosequencing that are parallelized...techniques we use now may soon become obsolete. For instance, the popular genome-engineering tool, CRISPR, ...mouse lines, such as BAC transgenic or traditional knockins/knockouts, a thing of the past. In the sequencing...

...bioinformatic and proteomic tools to discover genes and proteins associated with pathogenesis. In his future work... T7 polymerase, EcoRI, and various fluorescent proteins. Dr. Duedu’s plans for these plasmids have a heavy...PCR. We hope these plasmids will help Dr. Duedu inspire new Ghanaian scientists to continue to do excellent...have received equipment through Seeding Labs’ Instrumental Access program. We are excited to discover what...Apply to Recieve Equipment through Seeding Labs' Instrumental Access Program Additional Resources on the ...

...does all of its damage with just seven structural proteins. But, as NPR explained, it’s not the virus itself... critical for viral attachment and fusion. Once inside a host cell, new evidence in PLoS Pathogens shows...shows that the Ebola virus glycoprotein remains essential in allowing those infected cells to go undetected...in a novel way, by shielding host cell surface proteins. Researchers at the University of Virginia School...California, Santa Cruz, offers sequence data on five strains of Ebola representing the latest outbreak and earlier...

...researchers led by Dr. Jorge Ruas of the Karolinska Institutet, the discovery really wasn’t what they’d...those mild stressors as usual, but somehow their brains were protected. Effects of Activation of the PGC... Moon and Henriette van Praag of the National Institute on Aging in a commentary about the new work published...explore. “It will be important to identify the key proteins and metabolites that are dynamically secreted ...

...covalent modifications to DNA or histones, the proteins that help package DNA, were associated with gene...With the help of guide RNAs, fusions between Cas proteins and the epigenetic modifier could be targeted ...cytosine demethylation of DNA. However, several proteins in the DNA oxidation and repair pathways work ...of the larger pMVP/pMAGIC cloning system, which contains Cas9 fusions for several epigenetic modifiers,...Sander JD, Reyon D, Bernstein BE, Costello JF, Wilkinson MF, Joung JK (2013) Targeted DNA demethylation...endogenous genes using programmable TALE-TET1 fusion proteins. Nature Biotechnology 31:1137–1142 . https://doi.org...