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...neuronal function, with far fewer side effects compared to lesioning methods -  they may be the key to...camera or tracking software. Locomotion is a highly complex process on the level of individual neurons and ...different motivation (and brain areas associated) compared to an animal running to escape a threat. Locomotion...plus maze, the light-dark box is a simple device comprised of a brightly lit (risky) and a dark (protected... control group preferred staying in the dark compartment (Howerton at al. 2014). Addgene has several recombinase-expressing... passive mode, the stronger is the depressive component of the animal behavior. With the availability ...behavioral neuroscience to reveal insights into the complex relationship between genes, neurons, and behavior...

... newly formed compensation committee. The compensation committee creates a compensation philosophy that...employee compensation and also serves as an objective body to oversee some of Addgene’s compensation decisions... environment.   What do you hope Addgene will accomplish in the near future? Right now it’s a matter of...

...websites compiling antibody data that can help you compare antibodies from different companies, such as... a fluorophore (Figure 1).   Figure 1: Comparison between how direct immunofluorescence and indirect....  How do you find validated antibodies? Many companies that produce and distribute antibodies validate...through their publications or as a review on a company website. It is important to review the data and... a couple of antibodies that seem promising to compare in your own lab. Even with all of the resources...

...tough. Is the content accurate? Are we conveying complex ideas in the easiest way possible? Are the shots...Jennifer. I had finally found my footing with the company. I’d identified the ways to get the most out the...things like lighting, camera angle, and shot composition.  So back to the drawing board.  Cycle 3: A Return... and availability, a traditional solution was completely out of reach for Addgene.  So, onto research!...  Figure 4: The remote directing setup, complete with wireless video receiver, camera control, ...Future! Figure 5: The mobile monitor and teleprompter being repurposed for a different shoot to create...monitor stand into every shoot. I also added a teleprompter to the mix, adapting the setup to run some remote...

...the N2 gene of SARS-CoV-2. If the Cas12a-sgRNA complex binds to the target sequences, Cas12a activity ... amplified region of interest. Cas13 uses a complementary crRNA sequence to bind to the sample and upon...steps and the Cas protein used. Here, all the components needed for the reaction are mixed in a single...incubated at one temperature. Two Cas12a-crRNA complexes are designed, each binding to one strand of the... RPA primers, the Cas12a-crRNA binds to the complementary region in the target sequence and this activity... substrates for Cas13. Cas13, upon finding complementarity between the gRNA and a given fluorescently ...streptavidin coated beads. Fluorescently labelled dCas9 complexes containing sgRNA that have no mismatches bind ...

...lengths to keep accurate records, but given the complexities of modern research, it’s often not enough. A... have software tools that help us efficiently accomplish our daily goals. These tools remind us of our...others using excel sheets or organizing folders in complex ways, there are solutions that bring more to the...-based solutions or open source solutions. In comparison to paper-based record keeping, ELNs offer functionalities... if you are working for a large institution or company, site licenses might be available as well. In most...information. Does your lab need to meet any specific compliance requirements – e.g. 21 CFR part 11, HIPAA? Answering...of time and effort and give the lab a serious competitive advantage.  Many thanks to our guest blogger...

...are designed to be complementary, but each primer may extend beyond the complementary region as long as...products (green) are digested with enzyme “A” as compared to the products of parental plasmid digestion ... Primer Design As a rule of thumb, 11 bp of complementary sequence on either side of the desired mutation...template should be isolated from a methylation competent bacterial strain (e.g. DH5α which is dam+). Methylation...A-overhangs (a feature used in TA-cloning). Such non-complementary bases at the 3’-end interfere with plasmid reconstitution...that any residual parental plasmid (usually from incomplete DpnI digest) can also form colonies under these...

...5). Optimization of this system defined three components required for translation (Figure 1): A tRNA ...the pSer-incorporated polypeptide. These three components were shown to effectively incorporate phosphoserine... the phosphoserine OTS, Sep-OTS, contains the components required for the translation of pSer-incorporated...host strain for pSer-incorporation The second component necessary for phosphoserine incorporation is a...enzyme function, protein interaction, etc. by comparison to non-phosphorylated or ‘wild type’ control ...substitution. Alternatively, you can express the completely wild type protein from the same plasmid.  Upon...dephosphorylation reaction can be tracked through the comparison of phospho:non-phospho species on PhosTag gels...

...transform into competent cells. The master mix of enzymes can be purchased from a company (e.g. NEB or ...so the entire reaction takes an hour or less to complete at 50 °C. After an hour or so, the sample is immediately...master mix for 1 hour, and then transform into competent cells. The success rate of this reaction is typically...terminator sequence), since this would directly compete with the required single-stranded annealing and...ensures correct assembly order of the fragments as compared to the smaller overlapping sequences left with...assembly meets CRISPR Gibson can be adapted to more complicated cloning schemes, such as those where the vector...

...credit for what we have accomplished. Starting with a recap of accomplishments, from learning new techniques...tangible research and career goals, and celebrate accomplishments. These techniques are laid out in Vincent et...conversation. Goals and Planning Worksheet: Lists accomplishments, research/professional goals and feedback. ...including major project goals and effort needed to complete them. These documents dictate the subject matter...concrete plan in hand, trainees are motivated to complete their work rather than overwhelmed or confused...

...1]. Like other transposons, piggyBac™ has two components, a transposon and a transposase. The piggyBac...also enables the excision of the transposon in a completely seamless manner, leaving no sequences or mutations...enhanced random integration efficiencies that are accomplished with transfections and are therefore virus-free...enhance gene editing? Gene editing can now be accomplished in a more cost-effective and efficient manner...challenges still remain, such as making gene edits completely seamless (i.e., so no other genetic alterations...transposase (PBx), which contains mutations making it competent for excision, but defective for integration [4...   How does the piggyBac™ gene editing system compare with other methods of gene editing? There are primarily...

...services don’t offer plastic recycling, specialized companies can recycle plastic-- you just have to find them...product packaging) for free! It has to be from their company and it has to be packaging (no coated tissue culture... label. Recycle nitrile gloves Terracycle is a company that takes items not commonly accepted at recycling...your lab or department and send them back to the companies for reuse. They’re really easy to spot and even...recycling program at your institute! Universities and companies have the potential to make a huge impact directly...! These days, it’s important for individuals, companies, and universities to be sustainability leaders...

...methylation competent E. coli for this procedure to work properly. Directly transform chemically competent cells...tips for applying it in your own lab. Table 1: Comparison Between Standard Restriction Cloning and Fast...are then transformed directly into chemically competent E. coli and transformants selected with the appropriate...insert with an additional 15-17 bases that are complementary to the overlapping vector ends. See an overview...an hour at 37°C. This should be enough time to completely digest the template DNA. Note—templates must ...

... of powdered media. Filtration does not ensure complete sterilization as mycoplasma can even escape 0.2... growth of mycoplasma but cannot eradicate it completely. When mycoplasmas are seen in the culture, it...mycoplasmas are used. A broad range of primers encompasses almost all the infecting mycoplasma. The primers...assay kits are available from different biotech companies which are enzyme-based mycoplasma detection kits...synthesized by eukaryotic cells. First, the kit components rupture the mycoplasma and then specific enzymes... of mycoplasma. These methods cannot guarantee complete removal of mycoplasma but, can get rid of most...Microbiol .44: 42–49  Uphoff Cc, Drexler Hg (2002) Comparative Antibiotic Eradication of Mycoplasma Infections...

...throughout your career. Plus, just one role can encompass many of these activities leading to a rich day-to-day...combat sexual harassment in academia or a large company who decides how they are going pursue regulatory...science policy roles exist. Explore these resources compiled by the AAAS Science and Technology Policy Fellowship...working in science policy doesn’t have to be a complete career pivot. There are many ways to pursue your...system? Defining your why is what will make you a competitive candidate for any science policy position and...expertise and then once selected, you can pivot to a completely new field without issue. This may be more challenging...much smoother.  Action Items:  Explore this comprehensive resource developed by Dr. Kelly Singel which...

...sequence. This means cloning occurs in vivo, as compared to restriction enzyme cloning where the genetic...homology to the target site for recombination. Key components of the Lambda Red recombineering system The lambda... lambda red recombineering system has three components (Figure 1): 1) Exo, 2) Beta, and 3) Gam. All three...dsDNA was short enough, a ssDNA whose entire complementary strand was degraded. Beta: Beta protects the...created by Exo and promotes its annealing to a complementary ssDNA target in the cell.  Only Beta expression...an ssDNA oligo substrate.   Figure 1: Components of the Lambda Red Recombineering system. See ...region of interest and design an oligo that is complementary to the lagging strand. In practice, it’s easier...

... TF library (aka the MORF Collection) and an accompanying expression atlas, including over 3,500 human...from these sites. The Zhang lab generated a comprehensive library of each unique TF open reading frame...endoderm, and mesoderm). These profiles were then compared to that of reference cell types generated by the... the human fetal expression atlas. Computational analysis was used to infer differentiation trajectories...Previously engineered TF libraries were not as comprehensive as this one, so it is an invaluable tool to ...expression dysregulation event. Diseases are often complex, with multiple layers of dysregulation from either...

...that no component of the overall project gets left undone or is duplicated. With each component of the ...the project completed by an individual who is a local expert in that task (or has the bandwidth to become...result is high quality and the entire process is completed more efficiently. Listen to our podcast interview...desired outcomes. Concern yourself with what is accomplished, rather than detailing how the work should be...in more engaged, successful employees who can accomplish great things.   To read more on this topic and...

...and reduce needed compensation.    Working with antibodies can get a bit complicated, but hopefully this...time-sensitive, using precious samples, or being compared to other data in a manner that demands high accuracy... reaction to understand if any of your buffer components could affect the reaction. For instance, sodium...detected in the same assay. This is one of the most complex subjects in antibody-based protocols - but thankfully...another channel's detection range. Though you can compensate for this when reading your data, you’ll want ...

...fluorescent proteins, how to do a head-to-head comparison of fluorescent proteins and how to make a well-informed...your selection on a small-scale head-to-head comparative study under conditions that best mimic the intended...protein properties and provides a quick way to compare fluorescent proteins, e.g. see Chudakov et al (...is of no use. Therefore, it is more sensible to compare fluorescent proteins based on their practical brightness...promising fluorescent proteins and to determine and compare their practical brightness in a system closely ...application. In figure 2 we provide an example of the comparison of the practical brightness of two orange fluorescent...