We narrowed to 798 results for: lat

... the biotinalatable tag on dCas9 with a BioTAP-tag. The BioTAP-tag is a 69 aa long biotinylation targeting...Jul 2, 2020. Promoters may be the star of gene regulation, but enhancers and chromatin looping play important...important supporting roles. Enhancers are cis regulatory DNA sequences that, when bound by transcription...thousands of base pairs away from the gene they regulate, but are brought in proximity by the looping of...CAPTURE (CRISPR Affinity Purification in situ of Regulatory Elements) method. The original CAPTURE method...2020). CRISPR Affinity Purification in situ of Regulatory Elements: The original CAPTURE method The original...the dCas9 to the loci of interest and dCas9 is biotinylated by BirA. From here, the CAPTURE method is similar...

...antibody manipulation), then expression is likely sufficient for successful optical stimulation.  It is...Gore BB, et al. Manipulating gene expression in projection-specific neuronal populations using combinatorial...technique is remarkably straightforward to learn and relatively cheap (compared to many other technologies and...electrophysiology to prove that your optogenetic manipulations are generating action potentials (or lack there...assess the effectiveness of your optogenetic manipulations (though a reviewer will probably ask for electrophysiology...circuit of interest in promoting reward is a self-stimulation experiment wherein mouse initiated optogenetic...in a reward sensation and subsequent repeated stimulation. A spatial memory task, on the other hand, would...

...possible to build gene regulatory RSMs (GRSMs, the subset of RSMs that regulate gene expression) that ...massive amount of information regarding which regulatory proteins, signaling molecules, mutations, and...individual bacterial cells to form colonies on a plate and then we performed colony PCR on the register...sequencing.  A less straightforward, but more population-wide (as opposed to single-cell) approach is ...a particular application makes it difficult to isolate single registers or if it requires reading so many...necessarily have to be based on transcriptional regulation, as long as they can control recombinase activity...post-transcriptional recombinase activation via RNA toehold riboregulation could be a promising strategy for linking RSM...

...example Tuller et al. found that translation efficiency is well correlated with codon bias in both E. coli...therefore may need fewer resources for the entire translation process. For example, during high growth rate...rate conditions, E. coli preferentially upregulates production of tRNAs that recognize codons found in highly...tRNAs, different regions of the protein may be translated at different rates. The ribosome will move quickly...the ribosome stalls, this may give the swiftly translated regions a chance to fold properly. For example...with specific secondary structures in 10 closely related yeast strains. Adaptation to changing conditions...codon preferences online). Even if the gene is translated, it may not function properly. This is the result...

...an shRNA to downregulate expression of miR124a, a regulatory RNA that negatively regulates BDNF levels...Christian Lüscher. "Refining deep brain stimulation to emulate optogenetic treatment of synaptic pathology...their involvement is activating, inhibiting, or modulating. Viral vectors, in contrast, are considerably...considerably more versatile and specific in how they manipulate neuronal function, with far fewer side effects compared...animal has been exposed to morphine or other stimulating drugs, it develops an enhanced propensity for...connection between neuroinflammation and anxiety by modulating the production of the pro-inflammatory cytokine..., or passive floating on the water surface. The latter reflects a state of behavioral despair, and the...

...differentiate the Ly6C negative population from the Ly6C positive population. Figure 2: An FMO gating...clear positive and negative population. If you’re unsure what your population will look like for a particular...Markers that define more specific cell populations, often used in the later gates, are more likely to require...or isotype controls, which we’ll describe a bit later. Single Colors Single color controls contain, as...artificial positive (bound) and negative (unbound) population. The benefit of beads is that they do not require...allows you to more easily and accurately gate populations that may otherwise be difficult to separate out...commonly used markers that define broader cell populations (e.g., CD4, CD8b, CD11b, CD19), are less likely...

...Kinases: they regulate many proteins, with ~1/3 of human proteins predicted to be phosphorylated on at least...least one site. Phosphorylation is particularly important for regulating signal transduction and measuring...predict. Slower Dephosphorylation Rates: FRET-based reporters can have slower dephosphorylation rates than ... signal (NES), both which are phosphorylatable. Prior to phosphorylation, the KTR localizes to the nucleus... of the nucleus depending on its phosphorylation status. The relative ratio of cytoplasmic vs. nuclear...hypothesized to be caused by FRET reporters having phosphorylated conformations that are less phosphatase-accessible...nucleus, but following phosphorylation bNLS activity is suppressed and NES activity is enhanced, leading...

... constructs. In multiple HIV-1 latent T cell lines, as well as a latent microglial line, treatment with...doesn’t completely disappear; it just hides in latently infected cells. To truly cure HIV-1, researchers... levels due to the viral reservoirs located in latently infected cells. Although ART-treated patients ...disease. This increased disease risk is attributed to latent HIV reservoirs, chronic inflammation, and negative...doesn’t see any threat to which it should respond. Latently infected cells evade immune detection because ...first, “shock and kill”, aims to reactivate the latent HIV so that infected cells will produce viral proteins...joined together. Clonal Cas9/gRNA-expressing cell populations were also immune to HIV-1 reinfection. Importantly...

... are enriched relative to controls using Split-BioID-GFP and BioID run on six unrelated proteins. One ...These interactions are often modeled as binary relationships, i.e. protein A interacts with protein B; but...controllable version of the proximity-dependent biotinylation technique BioID. The key advantage of Split-...BioID, BirA* is fused to a bait protein and it biotinylates proteins that are within a ~10 nm radius of ...biotin. When proteins Y and Z part ways, BirA* biotinylation activity ceases. After biotin tagging of proteins... PPIs are identified via mass spec analysis. Biotinylated proteins are considered possible interaction...different levels of fusion protein expression and biotinylation depending on which terminus of the bait proteins...

...promoter or the coding sequence and the template or non-template strand, among other parameters. .  Stanley...introduced along with an oligonucleotide repair template. Through recombineering, the locus of interest...interest is modified to match the repair template, and the locus cannot be recognized by the spacer-derived ... contains the specific gRNA(s), and the repair template is supplied as a dsDNA fragment. Each round of...with XbaI to insert extra elements, like a repair template, using Gibson Assembly or restriction enzyme cloning...does not function in bacteria, most efforts to regulate gene expression were limited to inducible promoters...CRISPR offers a much more user-friendly way to modulate gene expression. The Marraffini lab and Qi lab...

...relying on correlations between actual antibody labeling and expected labeling. Correlation cannot prove...practice to combine correlation with other approaches when possible. Finally, correlation of -omics data ...a powerful tool to delineate cell populations and to study relative protein expression. Its reliability...against markers of the human blood leukocyte populations, as well as a pragmatic approach to determining...and the abundance of the epitope in the sample, relative to cross-reactive antigens – that is, an antibody...images showing the staining intensity in the KO population (pink histogram) compared to the WT cells (green...shows separation between the wild-type and the KO population (Figure 1), further optimization can be performed...

...the blocking-only templates will compete with the blocking/intended mutation templates resulting in cells...simultaneously introducing a homologous DNA repair template, such as a sin­gle-stranded oligodeoxynucleotide...In mammalian cells such as stem cells, HDR is relatively rare and DSBs are predominantly repaired by NHEJ... very excited to set up a CRISPR-based editing platform in our lab. Our goal was to use the system to ... – Edit the cells a second time using a repair template that corrects the blocking mutation and again ...that the cell was only using a part of the repair template and mutations further away from the cut site were...characterize this phenomenon and found a general relationship between the distance of a mutation from the ...

...the template. The opposite is true if the sense strand is nicked for template formation: template will...low primer-to-template ratio is used to promote annealing of one primer to each template. The PCR product...Error-prone PCR: This method amplifies the wild-type template with a “sloppy” version of PCR that results in...). It uses a uracil labeled wild-type ssDNA as template for a site-directed mutagenesis PCR that uses ...strand (step 2 and 3). Then the uracil-labeled template strand is degraded by uracil DNA glycosylase (...present on both strands of the plasmid. The ssDNA template is generated by transforming a backbone phagemid...days to generate the phage-derived uracil labeled template, this method requires further DNA shuffling to...

... our high-throughput DNA isolation process that yields high-quality isolated DNA samples of sufficient...process is completed in a plate format yielding anywhere from two to six plates of 96 samples per week. ...anyone who has ever worked to sequence DNA on NGS platforms will tell you, while the process has become much... process only takes about one day, even for six plates (576 individual plasmids)! These libraries are ...perform Picogreen quantification on each and every isolated plasmid sample and normalize each to fall within...of this range are “failed” and removed from the plate to be prepped again. These holes are then filled...mutations, we check to see if they affect the translated amino acid. We also confirm that the species ...

...multicistronic vectors, and post-translational regulatory elements. Examples of these approaches are given...regions, neuronal networks, and specific neuronal populations to consider. To tease apart how different neurons...can combine classical genetic tools with the manipulation of specific neuronal subtypes and determine ...combinations to choose from for your experiments! Late last year, we hosted our first AAV Education and...-based molecular tools for targeted neuronal manipulation. The goal of the workshop was to share the results...for neuroscience see Table 1 from the paper. 2. Manipulate your cell of interest: Cell-type specific expression...achieved in nontransgenic animals by using cis regulatory elements such as promoters and enhancers, multicistronic...

... precision for relative quantification. A consistent 5% positive error across the plate is fine; a 5% ...up your plate in a way that will tell you if you have pipetting errors on the edges of the plate. Compare...variation due to technical error.  Plate readouts can be affected by plate type or tubes, sealing method, ...of mouse prominin, is blood glucose-regulated and can up-regulate the expression of GAPDH. Biochem Biophys...You know qPCR is most commonly used to measure relative quantification of mRNA, which can be used as a...reported to work well in the Lightcycler while being relatively easy to multiplex (Thellwell, 2000). See Table...possible to multiplex your reference genes to save on plate space. For many cell lines and tissue types, appropriate...

...transformation plate can be manipulated to result in appropriate levels of colony plating densities. Ligase...Outgrowth plated) Correct assemblies per plate Fidelity of assembly (percent correct) Calculated colony ... can plate larger volumes of the outgrowth containing the transformants onto the selection plate. Figure...of assemblies per plate using outgrowth volumes described in Figure 3, with calculated yields from entire...phenotype upon growth on LB/Cam/X-gal/IPTG agar plates, indicating successful reconstruction of the coding...assemblies was achieved by the sequencing of plasmids isolated from blue or white colonies. Sequencing of blue...Figure 2 shows representative transformation plates obtained from 1-, 12- and 24-fragment assemblies of ...

... the cumulative number of labs who have deposited CRISPR plasmids (Figure 1C), and the cumulative number...distribution and deposits. (A) Cumulative CRISPR plasmids shipped by year. (B) Cumulative CRISPR plasmids deposited...(C) Cumulative number of laboratories that have deposited CRISPR plasmids by year. (D) Cumulative CRISPR... a classic double-stranded break, while modulators regulate transcription and chimeric efforts make a ...Distributing and depositing In Figure 1, you can see cumulative numbers of CRISPR plasmid distribution and deposits...nuclease into three functional groups: nucleases, modulators, and chimeric effectors. Nucleases generate a...distribution and deposits per year, rather than a cumulative total.    Figure 2: Addgene CRISPR deposit...

...are sigmoidal. Once the trendline is calculated, you can extrapolate the concentration of the unknown sample...software to calculate the data’s coefficient of determination, R2. R2 is the square of the correlation between...could be because there is no correlation or it could mean that the relationship is non-linear and you should...versus the response and use that information to extrapolate the concentration of an unknown sample. For example...the accuracy of the curve, which we will discuss later.       Standard curves must be included every time... the experiment and use the standard curve to calculate its experimental value. Though it varies from ...measurements and the trendline y = 0.6561x + 0.019 calculated. The concentration of an unknown sample is determined...

...used to calculate the concentration of the sample. This concentration can then be used to calculate the viral...generator to the PCR plate. Maintaining a high droplet count is important for calculating the concentration...Addgene, we typically load 3 dilutions onto our ddPCR plate. As the titer is unknown, each dilution should fall...making the dilutions, they are transferred to a new plate containing the mastermix which includes primers ...a droplet reader extracts the droplets from the plate and measures the fluorescence amplitude of each ...positive (blue) and negative (gray) droplets. The no template control wells should have very few positive droplets...approximately 1 positive copy per microliter in the no template control wells. You’ll also notice a reduction ...