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We narrowed to 788 results for: lat

Showing: 121 - 140 of 788 results

  1. Addgene-Seeding Labs plasmid grant round 3: microbial drug resistance and biofilms, antidiabetic plant components, visualizing brain injury - and a glowing robot fish

    Type
    Blog Post
    Published
    Nov. 27, 2018, 2 p.m.
    ...microscopy methods will be used to stimulate and manipulate neural populations in order to get new insights ...current research, Sheen aims to identify new genes related to PZA-resistance by using different approaches...understanding of PZA action and could potentially stimulate the development of useful diagnostic methods and...collection of pathogenic Klebsiella and Pseudomonas isolates causing urinary tract infections. This project...to create gene deletions of important unknown regulatory regions in Pseudomonas and Klebsiella spp. The... several diseases. Her goal is to identify and isolate pure plant compounds with antidiabetic properties...Recombinant human proteins that play a role in insulin regulation and diabetes will be expressed from plasmids ...

  2. Addgene Welcomes John Doench to the Advisory Board

    Type
    Blog Post
    Published
    Aug. 13, 2015, 2:30 p.m.
    ...of how miRNAs regulate their targets and what confers specificity in the miRNA regulatory process. This... the then RNAi Platform, which has since evolved into the Genetic Perturbation Platform and encompasses...Associate Director of the Genetic Perturbation Platform at the Broad Institute and has worked with many... up on a Saturday at like 7 am to go check your plates and you’re excited to do so, you know that that...you.” After recognizing his love for science and later realizing that he wanted to continue doing research...The model that the Broad was building that had Platforms with a capital ‘P’ focused on technology ... has...enjoys working on technology development under the Platform model at the Broad Institute because they are ...

  3. Fluorescent Proteins 101: Luciferase

    Type
    Blog Post
    Published
    June 24, 2014, 3:59 p.m.
    ...investigate the effect of regulatory elements, such as promoters, enhancers and untranslated regions, or the effect...effect of mutations of these regulatory elements on gene expression. The regulatory element (wild-type or mutant...Higher Lower Background Lower Higher Post-translational Modification Not Required Required Photobleaching...Biological sources of luciferase Although luciferase isolated from the firefly beetle (Photinus pyralis) is ...Luciferin ATP No Japanese firefly(Luciola cruciate/lateralis)Italian firefly(Luciola italica)Southern Russian... produce light, often with a luminometer or scintillation counter, and the activity measurement can then...then be used to quantify the effect of the regulatory element. Depending on the specific luciferase used...

  4. Hot Plasmids: Summer 2024

    Type
    Blog Post
    Published
    Aug. 27, 2024, 1:15 p.m.
    ...the recombinase handles the installation of the donor sequence. The latest work evolves and engineers ...D3L, releasing the autoinhibition and stimulating the methylation of nearby CpG sites on the target DNA...problematic for low-abundance targets or natively isolated complexes. To address these limitations, the Funabiki...Funabiki Lab developed a technique called Magnetic Isolation and Concentration (MagIC)-cryo-EM that combines...streptavidin-coated magnetic beads through an assembly of biotinylated SpyTag-SpyCatcher linkers and spacer proteins...in sample loss. Ci Ji Lim’s lab found that adding Late Embryogenesis Abundant (LEA) proteins, small proteins...particle orientation distribution and Fourier-shell correlation curve (D), and the reconstructed 3D map with ...

  5. Antibodies 101: Beyond Surface Labeling

    Type
    Blog Post
    Published
    June 27, 2024, 1:15 p.m.
    ...receptors, or post-translational modifications on those proteins, like glycosylation patterns. Surface ...only be interested in one of the various cell populations; for example, CD8+ T (“T killer”) cells. Typically... simply “dump” them by gating on the negative population.     Figure 2: Dump gating labels all...allowing for a flow analysis to be shifted to a later day. Note that intracellular labeling must be performed...method, differences in proliferation between cell populations can be visualized, achieved through, for example...heterogenicity of proliferative behavior in a cell population can be seen as a stepwise decrease in signal ...easily gated on during the analysis. Conclusion Congratulations! You made it through this blog post and hopefully...

  6. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

    Type
    Blog Post
    Published
    May 5, 2020, 1:15 p.m.
    ...detected using lateral flow strips. Since the probes are tagged with streptavidin, the lateral flow strip ...concept to lateral flow strips that contain streptavidin which can bind to the biotinylated targets. They...earlier epicenters of the outbreak ultimately flattening the curve, it has become evident that widespread...fluorescence and this approach can be incorporated into a lateral-flow readout slip that allows rapid detection.  ...substrate, gets activated and performs non-specific collateral cleavage. This cleavage is coupled to fluorescence.... In this technique, however, instead of using lateral flow strips to detect the cleavage of fluorescently...hours Equipment needed: PCR machines/Heat blocks, Lateral flow strips, Agarose gel equipment, Fluorescent...

  7. Cas13d: Small RNA-targeting CRISPR enzymes for transcriptome engineering

    Type
    Blog Post
    Published
    May 3, 2018, 1:48 p.m.
    ...cleavage promotes collateral cleavage of other RNAs. As with other Cas13s, this collateral cleavage does ...These small, but mighty type VI-D enzymes are the latest tools in the transcriptome engineering toolbox....identified other advantages, including Cas13d-specific regulatory proteins and high targeting efficiency, both ...accessory protein RspWYL1 increases both targeted and collateral RNA degradation by RspCas13d. RspWYL1 also increased...WYL domain-containing proteins may be broader regulators of Cas13d activity. This property makes WYL proteins...counterpart to anti-CRISPR proteins that negatively modulate the activity of Cas enzymes, some of which are...Konermann et al. compared CasRx to multiple RNA regulating methods: small hairpin RNA interference, dCas9...

  8. Supporting Rare Disease Research with the 2020 BeHEARD Awards

    Type
    Blog Post
    Published
    Sept. 8, 2020, 2 p.m.
    ...plasmid-based tools for rare disease research. Congratulations to the winners! Below, we highlight their research...patient-mutation bearing knock-in mouse model for CTD. Congratulations the Association for Creatine Deficiencies! ...identify therapeutic targets in the future. Congratulations Mark Mellett! Siddharth Prakash: X chromosome...50-100 times higher than women in the general population,” says Dr. Siddharth Prakash, an associate professor...The lab hypothesized that this is abnormally deregulated in TS and can lead to cardiac developmental defects...cause heart problems in TS,” says Prakash. Congratulations Siddharth Prakash! Terry Hébert: How GNB1 mutations...GPCRs) detect molecules outside of the cell and translate those signals into cellular responses. For example...

  9. Announcing the Winners of the 2021 Michael Davidson and Roger Tsien Commemorative Conference Awards

    Type
    Blog Post
    Published
    Aug. 5, 2021, 12:15 p.m.
    ...Roger Tsien Commemorative Conference Awards. Congratulations to the five winners! Abhi Aggarwal Brandán... a conference of their choice while honoring the late Michael Davidson and Roger Tsien who have played...thiol-containing acceptors. These hydropersulfides modulate protein activity and have important roles during...opioid use disorder. Her goal is to identify cell populations in the brain that contribute to the development...functional contribution to a variety of behaviors related to addiction and pain. Once these are completed...neurons using GCaMP7, measuring calcium signaling related fluorescence during morphine administration and...resulted in mechanical allodynia. With the dual regulation, she could then use pulses of blue light to activate...

  10. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ...of cells. The antibiotic in your plate might not work. Check the plates! Streak on them an E. coli  strain...help you at this stage and that can be used to simulate in silico cloning. This will definitely help in...enzymes that you are using are not blocked by methylation like XbaI, ClaI, etc. If you are doing multiple...Design primers that overlap at least 24 bp with the template and if the sequence has high GC or AT content,...if you are having difficulties in amplifying a template, particularly from a large genome, you can recheck...have no colonies, check that the antibiotic in the plate correspond to the antibiotic resistance marker present...growing fine, it is probably time to prepare new plates with a fresh stock of antibiotic. Many small colonies...

  11. Advice on Career Paths and the Green Card Process for International Researchers and Entrepreneurs

    Type
    Blog Post
    Published
    Dec. 20, 2017, 2:33 p.m.
    ... as law, medical/technical writing, clinical, regulatory, product development, business development, consulting...foreign workers in specialty occupations. US regulations define a "specialty occupation" as requiring ...paths are not the only place to develop “industry related skills”. Many career paths in academia as well ...look broadly at opportunities to develop skills related to their areas of interest. Additionally, since...institutions of higher education nonprofit entities related to or affiliated with institutions of higher education...applicant works at institutions of higher education, a related or affiliated nonprofit entity, or nonprofit research...awards, media reports, and membership in groups related to the foreign national’s field.” (Matter of Dhanasar...

  12. Lab Automation at Addgene

    Type
    Blog Post
    Published
    March 22, 2018, 1:28 p.m.
    ...wells plates onto agar q-trays where the samples must be spread much farther apart before plating. With..., we can prep two 96 well plates in just under 3 hours or one 96 well plate in about an hour. Automating...Beckman Coulter’s Biomek FXP. We had a previous relationship with Beckman Coulter and that certainly played...too much and dying.  Also, we added a couple of platforms that fit 48 well q- trays allowing us to do up...96 tips for easy sample transfer between 96 well plates. The second pod can pick up 8 tips and position... robot is called the Qiagen BIOROBOT Universal Platform and it suits our plasmid prepping needs perfectly...on a larger scale. Using the BIOROBOT Universal Platform is ideal because it eliminates the potential of...

  13. Early Career Researcher Toolbox: Finding Relevant Papers

    Type
    Blog Post
    Published
    Jan. 9, 2020, 1:45 p.m.
    ... real challenge is finding relevant papers. The latest installment of the Early Career Researcher Toolbox...highlight four tools for finding journal articles related to your actual interests while also staying on ...around since 1996, but is getting an update! The latest version can be found here. The new PubMed will ...these types of accounts can help you find papers related to a particular topic or that were published by...tweet about papers too. You can follow journals related to your field of research or larger journals that...can bookmark a tweet in order to easily access it later. Pro tip Checking the number of retweets, likes,...who published the most papers with your keyword populated at the top of this filter. A unique feature of...

  14. Adapting Toehold Switches to Detect Zika Virus

    Type
    Blog Post
    Published
    Aug. 30, 2016, 2:30 p.m.
    ...of an outbreak of the virus in Brazil that was correlated with greater rates of infection and rare, but...Zika virus is expected to expand into heavily populated regions of South, Central, and North America. .... The first was a new class of programmable riboregulators, called toehold switches, which allow for the... 2014). The second was an in vitro paper-based platform that allowed gene circuits to be deployed out ... had been working on advancing the paper-based platform toward a more field-ready format when the Zika...our manuscript to the journal Cell just six weeks later. The Zika publication timeline I think we can speak...we say the timeline to develop our paper-based platform into clinically relevant diagnostics for the Zika...

  15. When Fidelity Matters: A frank discussion about ligase fidelity

    Type
    Blog Post
    Published
    March 6, 2018, 1:49 p.m.
    ...in 16 wells of a 96-well plate, allowing 6 conditions to be screened per plate. The results indicated that...enzymes that seal breaks in DNA by joining 5 ́-phosphorylated DNA termini to 3 ́-OH DNA termini (1-4). In...interrogation of multiple potential SNP sites (15). The related LCR technique uses two sets of probes to achieve...the reaction. This “peeling back” of the 5 ́-phosphorylated base can be observed in the crystal structures... pools were prepared consisting of one target (template) strand and four upstream probes and four down-stream...strand covering all 16 possible NN pairs in the template. The probes were designed such that each possible...to screen additional ligases, conditions, and formulations and has led to the development of the new HiFi...

  16. Sequencing Options for CRISPR Genotyping

    Type
    Blog Post
    Published
    Oct. 4, 2016, 2:30 p.m.
    ...genotyping, is critical to demonstrating causal relationships between genotype and assayed phenotype. Verifying...and T7E1 have been widely adopted due to their relative simplicity and low cost. The problem with these...editing events that occur in less that 5% of the population (Fu et al. 2013, Vouillot et al. 2015). Meanwhile...consuming and cannot be applied to heterogenous populations (Bell et al. 2014). Further, Sanger sequencing...Low-throughput, inappropriate for heterogenous populations, low sensitivity Targeted Amplicon Sequencing...list of putative off-target sites that they can later sequence for mutations. One method a researcher ... detection rates mean the investigator can be relatively certain that their samples don’t have off-target...

  17. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...phosphoproteins Protein phosphorylation is one of the most abundant forms of post-translational modifications in...questions surrounding serine phosphorylation by adding this phosphorylated amino acid to the genetic code...participates in y. Depletion of your protein may upregulate an alternative pathway or induce other compensatory...cloning have been utilized to create recombination template vectors, to perform multiple site mutagenesis ...where signaling dynamics are influenced by the relatively long life-cycle of a protein from expression ...plasmids required to make singly or multiply phosphorylated proteins (B40 OTS and pCRT7-GFP). To demonstrate... either one or two phosphoserine residues cotranslationally inserted in their canonical positions (SP218...

  18. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    Published
    July 11, 2017, 2:30 p.m.
    ...investigator generates a cell population where all genes are knocked out at the population level, but each individual...be targeted. Cells failing to upregulate the protein following stimulation would then be separated by sorting...knocked out. In this genetically heterogeneous population, cells behaving differently (e.g. different growth... response to a cytokine known to cause the up-regulation of an important surface protein (e.g. PD-L1 on...were kindly donated by six different research constellations: Doench/Root (2), Zhang (3), Wu (4), Yusa (...The different labs use different algorithms to calculate which would be the best gRNAs. Interestingly, ...your own favorite Reference Library, for example related to strategies beyond SpCas9, or species not currently...

  19. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    Published
    Nov. 19, 2020, 2:15 p.m.
    ...medical journal. Decades later and after years of painstaking work trying to isolate the causative gene for...role of the MECP2 gene, and highlights some of the latest breakthrough therapeutic approaches. What is Rett...et al., 1999). We now know that MECP2 binds to methylated CpG dinucleotides and CAC trinucleotides during...& Bird, 2019) and is a global transcriptional regulator of thousands of genes. Studies have suggested ...with the minor groove of AT-rich DNA sequences to regulate transcription (Baker et al., 2013). Mutations ...in animal models, Rett syndrome is a strong translational candidate for gene replacement therapy. In 2014... expand as Rett scientists deposit their MECP2-related plasmid tools with Addgene and share additional...

  20. Chemogenetics vs. Optogenetics: Which Method Should I Choose?

    Type
    Blog Post
    Published
    June 11, 2020, 1:34 p.m.
    ...optogenetics differ are: Timing Targeted manipulation Controlling stimulation Invasiveness  Choosing the best...Controlling Stimulation Some studies rely on delivering reversible or varied amounts of stimulation to receptors...where drawn out effects are required. Targeted manipulation Both optogenetic and chemogenetic tools can ...as the light source can be easily and quickly manipulated or turned off. In chemogenetics, while different...injected, this is not as precise and the offset of stimulation is gradual. Invasiveness Both optogenetic and...intracranial implant Noninvasive Controlling Stimulation ExogenousEasily controlled EndogenousNot easily...blog posts Learn more about precise targeted manipulation Resources on Addgene.org Browse all viral ...
Showing: 121 - 140 of 788 results