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We narrowed to 1,044 results for: sta

Showing: 561 - 580 of 1044 results

  1. Quick Guide to Working with Drosophila Part 3: Genome Engineering in Flies

    Type
    Blog Post
    ...Jiang,  et al. Cytokine/Jak/Stat signaling mediates regeneration and homeostasis in the Drosophila midgut...geneticists to study gene function. In this final installment, I’ll provide a brief introduction as to how ...flies? Sure, the vector will have an antibiotic resistance gene to select for transformed bacteria, but ...crosses with balancer chromosomes to make genetically stable fly lines. After a few weeks of waiting, your flies...

  2. Enabling Precision Functional Genomics with the Target Accelerator Plasmid Collection

    Type
    Blog Post
    ...function and a well established cellular signaling gene, thus providing a starting point for downstream...per gene approach that has been the historical standard. Specifically, in our recent publications, we ...profiling, systematic tumorigenesis assays, drug epistasis assays, and morphological profiling can be used...essence in clinical settings, looking ahead, we’re starting to build saturating libraries of all possible ...

  3. Screening for Successful Genome Editing with Digital PCR

    Type
    Blog Post
    ...Next-generation sequencing technologies are the gold standard but they remain cost-prohibitive for many labs...Since there are many thousands of partitions, statistical modelling can be used to determine the actual... measure of target abundance, does not require standard curves, and can theoretically detect a single ...reference probe designed to bind at an unedited site distal tothe predicted double strand break, and a NHEJ...individual target molecules based on their mutation status. The drop-off probe is designed to perfectly complement...

  4. Addgene’s Viral Service - Why Virus? Why Now?

    Type
    Blog Post
    ...In the middle of 2016 Addgene started distributing a small but growing catalog of ready-made AAV and ...represents Addgene’s largest new initiative since we started distributing plasmids in 2004. We’ve already distributed... 501(c)3 nonprofit and our plasmid service was started based on donations. That seed money was used to...Wyss Institute were instrumental in helping us establish consistent, high-quality protocols for lentiviral... allows us to maintain Addgene’s high quality standards?” Under the leadership of Addgene’s co-founder...

  5. Kiran Musunuru on the Newest TALEN Genome-Editing System

    Type
    Blog Post
    ...Department of Stem Cell and Regenerative Biology is to understand the basis for cardiovascular and metabolic human...question – cardiomyocytes, adipocytes or neurons, for instance – to see how those mutations influence the disease...are the implications of this kit in terms of understanding human disease? Musunuru: The power here is that...which seem to contribute to a particular disease state. You could use the kit to insert all of those variants..., CRISPR may be more efficient. You might often start with CRISPR/Cas9, but TALENs do have more flexibility...

  6. RNA Extraction Without A Kit

    Type
    Blog Post
    ...performing RNA extraction. RNA is inherently not as stable as DNA- it is single stranded and its ribose groups...help to further streamline this process and/or stabilize RNA during tissue collection and homogenization...method.  Researchers have also developed ways to “stabilize” RNA within tissues before cell lysis. These products...cells or tissues- they don’t actually chemically stabilize the RNA molecules (Allewell and Sarma, 1974). ...RNAlater® with use of TRIzol® and ammonium sulfate stabilizing solutions can be made in house.   A common problem...

  7. Supporting Rare Disease Research with the 2020 BeHEARD Awards

    Type
    Blog Post
    ...functions. It’s an important process that we need to understand so that we could possibly develop pharmaceutical...in women with TS. “The goal of our study is to understand why women with TS develop bicuspid aortic valve...regulate ion channels in the brain.  “I have a long standing interest in the biology of GPCRs and G proteins...nucleus,” says Dr. Terry Hébert, a professor and assistant dean of biomedical science education at McGill...to “expand our knowledge of GNB1 disorder by understanding affected signaling pathways and how they lead...

  8. Antibodies 101: Selecting the Right Antibody

    Type
    Blog Post
    ...been assigned an exciting new project aimed at understanding how a critical cellular pathway is regulated...application. Take immunohistochemistry (IHC), for instance. While an antibody may be validated for IHC, not... its target and consequently the quality of the stain. Choose the antibody that was successfully used ...independent antibody strategies that compare the staining patterns of multiple antibodies against the same...express a tagged version of the antigen and compare staining of the antibody to that of the anti-tag antibody...

  9. Addgene: The First Twenty Years

    Type
    Blog Post
    ...Addgene!  Addgene was established as an e-commerce company, which helped it stay ahead of the curve as...scientists. She, Kenneth Fan, and Benjie Chen decided to start an open science nonprofit that would facilitate ...transformed this process by aligning institutions with standardized agreements and electronic signatures to dramatically...Excellence Award for our electronic MTA system. We also started our blog and YouTube channel in 2013, which continue...

  10. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    ...steps you can take to verify your own plasmids. Staying organized With hundreds of samples coming through...the first step to ensuring plasmid quality is to stay organized. Here at Addgene, we collect data on every...inserted gene/functional mutations, antibiotic resistance, restriction sites used during cloning, and most... cloning sites. In the simplest case we have a standard backbone with one insert, and can use common primers...easier by selecting the right primer. This often starts by determining what features you expect to differ...

  11. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

    Type
    Blog Post
    ... at any edit distance. It won’t, however, compute any score other than the edit distance. Added functionality...each item changes from what the reviewers so painstakingly assessed to something a bit more representative... time to assess public response; and, it is the stage I think we are currently at in the CRISPR software...formatted output. Surprisingly only 2 tools provide FASTA output. A few notable tools allow the user to save...target sites, off-target sites, scores and the statistics that go into calculating them. For this, some...

  12. Overcoming the Challenges of Lentiviral Production

    Type
    Blog Post
    ...supernatant is collected, filtered, and titered. A major obstacle in obtaining usable lentivirus is producing a ...concentrations will need to be optimized prior to starting. We recommend calculating the ratio of the surface... adjustments, this is generally a good place to start. If you don’t anticipate that you will need large... will take longer and may increase the risk of mistakes or contamination. Finally, choice of concentration...possible. While this information provides a great starting point, it may not translate to the target cell...

  13. Making CRISPR Plasmids Using Fragmid

    Type
    Blog Post
    ...Drosophilia Plasmid pRDB_052 (for stable fly cell lines; Hygromycin resistance gene; for genome integration... can be inserted instead, allowing everything to stay in the correct order. Most Fragmid components are...All destination vectors contain an ampicillin resistance cassette and an origin of replication, which ...ampR) Drosophilia Plasmid pRDB_051 (for stable fly cell lines; attL and attR sequences for genome...

  14. 6 Tips for Grant Writing

    Type
    Blog Post
    ...attention, practice, and honing of your skills from the start. Just like with any sport, hours of practice are...insight into an area - not just working within the established network of your peers. Furthermore, using new...excellence of the institution). Likewise, if you’re staying in the same lab where you have been working for... years, you need to be very clear that you are staying because it is the best place in the world for your... Strategize, choose calls that suit your career stage / research area, and focus on producing a good quality...

  15. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    ...plasmids into bacterial strains, like NEB Stable. NEB Stable competent cells lack RecA, a protein that...with this AAV lysis buffer and freeze/thaw the lystate four times in a 95% ethanol and dry ice bath to... samples are quantified by comparing to an AAV standard curve, which is generated from an ITR-containing...sterile technique when handling your AAV plasmid standard and AAV transfer plasmids. It’s easy to contaminate...

  16. Transferable Skills: Negotiation

    Type
    Blog Post
    ...everyday What I didn’t realize was how much I was constantly negotiating, every day. As a grad student, I ... Asking questions like the below can help you understand the perspective of all persons involved and be...view the “winner” positively if they tried to understand my position and to find a creative win-win solution...I’m looking forward to. How can I negotiate my starting date with the company so they know I’m excited...respecting cultural differences is a crucial part of understanding what is important to people so that you can ...

  17. Fluorescent Proteins 101: Visualizing Subcellular Structures & Organelles

    Type
    Blog Post
    ...knowledge about functionality can be gained by understanding the location and transport of the protein within...localization and transport between healthy and diseased states can also provide interesting insights into disease...analysis software produces quantifiable results and statistics that can be used to compare between different...fluorescent signal) and photobleaching i.e. FP stability. One should also be aware of additional problems...of cellular complexes are important steps in understanding the function of your protein of interest in ...

  18. Genome-wide Screening Using CRISPR

    Type
    Blog Post
    ...drug screens to identify genes that confer drug-resistance. Mutant cells are treated with a drug of interest...and gRNA distribution is analyzed in the drug-resistant population compared to a non-treated control group...enriched” correspond to genes that confer drug resistance when mutated. Findings from this type of experiment...shed light on the mechanism by which cells gain resistance to drugs and can identify future therapeutic ...population requires a massive amount of cells as starting material. Therefore, cell types that are of low...

  19. Light Sheet Fluorescence Microscopy

    Type
    Blog Post
    ...reducing the time it takes to image through a large z-stack (8).  One limitation of LSFMs using single side ...illumination, especially with large tissue, is that any obstacles (e.g. air bubbles or high concentration of fluorophores...neuronal labeling methods will greatly aid our understanding of the structure-function relationship of the...Jae Lee and Pantelis Tsoulfas. Jae K. Lee is an assistant Professor at the University of Miami Miller School...Cytochemistry, 59, 129-138. Pubmed. J. Huisken, and D.Y.R. Stainier. (2009). Development, 136, 1963–1975. Pubmed. ...

  20. Transgenic Organisms, Cas9 Gene Drives, and Appropriate Safeguards

    Type
    Blog Post
    ...author and do not represent a formal stance taken by Addgene or its staff. Additional information about gene...ecological effects. Because the consequences of such a mistake would necessarily extend far beyond the laboratory...robust to human error. Used in combination with standard barrier protocols, they can reduce the risk of...vulnerable to human error. And with gene drives, one mistake can be enough. Reversal drives are designed to ...
Showing: 561 - 580 of 1044 results