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We narrowed to 898 results for: CAN

Showing: 401 - 420 of 898 results

  1. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    Published
    Oct. 27, 2015, 3 p.m.
    ...with the addition of N-glycans [9]. Both of these posttranslational modifications can disrupt FP folding ...fluoresce. A dark population is not readily apparent and can confound quantitative imaging experiments or even...susceptible to these non-native modifications, which can all potentially affect function [5]. We and others...cellular function or possibly viability. FP misfolding can even disrupt fusion protein localization. For example...pathway, a dark pool that is mislocalized to the ER can be detected with immunofluorescence. This population...experiments, please consider the following: How can one ensure that an FP fusion with a non-cytosolic...inert green, cyan, yellow, and blue variants that can be used in various combinations. For example, with...

  2. Addgene’s Newest Way to Speed Your Research: The Cloning Grade DNA Service

    Type
    Blog Post
    Published
    July 28, 2020, 1:15 p.m.
    ...to DNA extraction and quantification so that you can focus on what you want to do with your plasmid without...starting with 210 plasmids from the collection. You can find the full list here. Most of these plasmids are...cloning. Plus, we decided to include 10 plasmids that can be directly used in the research on the SARS-CoV-...out this service! Let us know what you think. You can also let us know which plasmids you’d like to see...

  3. "What Makes a Good Mentor?" and 6 More FAQs About Science Mentoring

    Type
    Blog Post
    Published
    Dec. 17, 2013, 2:47 p.m.
    ... you.” “Also a mentor can give you realistic expectations. (Don't think you can finish that book in 4 ..."The greatest good you can do for another is not just to share your riches but to reveal to him his own...experience. Navigating a fulfilling career in science can be challenging – is advice and guidance from only...Advisor/PI who will also be a good mentor? Where can I find a Mentor? What is this I hear about “group...

  4. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...light. PA-FPs can be activated from low fluorescent states to high fluorescence states, they can change from...fluorescent color to another, or their fluorescence can be switched on and off reversibly. This ability to...Irreversible photoactivation Irreversible PA-FPs can be switched on from a state of dim or no fluorescence...photoconvertible fluorescent proteins (PC-FPs). PC-FPs can convert from one fluorescent color to another (e.... is another monomeric PA-FP which unlike mEosFP, can form it’s chromophore at a more comfortable 37°C ...reversible PA-FPs (also known as photoswitchers) can be photoswitched from a dark state to a bright fluorescent...non-fluorescent state (“quenching”). The photoswitch can occur multiple times by activating with two distinct...

  5. Prime Editing: Adding Precision and Flexibility to CRISPR Editing

    Type
    Blog Post
    Published
    Jan. 13, 2025, 9:49 p.m.
    ...base-to-base conversions (Anzalone et al., 2019). Plus, it can combine different types of edits with one another...extends the reach of CRISPR genome editing, as it can edit near to or far from PAM sites, making it less...availability than other methods. The PAM-to-edit distance can be over 30 base pairs for prime editing. Since PAM... (in certain circumstances) Current base editors can perform any base-to-base conversion in principle,...require multiple steps and enzymes. Prime editing can encode any of the 12 possible base-to-base changes...bystander editing is unacceptable, prime editors can be used to avoid this possibility. However, there... strategy, cell type, and goal of the experiment can all impose different constraints and affect how you...

  6. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    Published
    March 14, 2017, 2:30 p.m.
    ...about how treatment regimens can be improved and how the therapies themselves can be made more effective. ...future immune surveillance. Dormancy of certain cancers can be attributed to the concept of immunoediting...equilibrium stage. This can be called “stalemate equilibrium” where the cancer stops growing, and the ...that eliminate early stage cancer cells, chronic inflammatory responses can augment tumor growth. Indeed...inflammation from infection can further divert the immune system from fighting cancer. Surgical removal causes...treatment strategies can be enhanced. Types of immunotherapeutics In lieu of the cancer-immune system interactions...because they can help start a sequence of immune reactions that aid in the fight against cancer. Sipuleucel-T...

  7. Harnessing Bacterial Toxins for Allelic Exchange

    Type
    Blog Post
    Published
    Aug. 15, 2019, 12:30 p.m.
    ...cases, counter-selection escape can occur: single crossover colonies can acquire the ability to grow on...multiple transformation and plasmid curing steps, and can generate off-target mutations. Modifying bacterial...alternative, endogenous homologous recombination enzymes can also accomplish the desired genomic modification....crossover”) which results in a merodiploid. This can be accomplished by selecting for an antibiotic resistance...on sucrose will identify double crossovers. This can be an efficient method to generate precise, unmarked... because in these circumstances, the conjugation can be so inefficient, that instead of the resulting ...the scarless modification of bacterial genomes. It can accomplish large deletions, insertions, and even ...

  8. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...or A much further from the ‘NGG’ PAM cannot be editable? They can, but they require other base editor ...about CRISPR, one question probably comes to mind: can CRISPR be applied to fix the defective base precisely...CRISPR-mediated base editing (BE), these types of repairs can now be done more efficiently than before. A base ...guanine (G)? You may wonder if a CRISPR-base editor can perform this change. However, there are no naturally...successful evolution of an adenosine deaminase that can act on DNA for adenine base editing. They first created...pKABE6.3, pKABE7.9, and pKABE7.10) so that the user can optimize base editing efficiency based on the location...to the protospacer adjacent motif (PAM). ABE7.10 can edit target 'A' if it lies in a small genomic window...

  9. Viral Vectors 101: Integrase-Deficient Lentiviral Vectors

    Type
    Blog Post
    Published
    May 13, 2025, 1:15 p.m.
    ...working integrase, IDLVs can still deliver their genetic payload to the cell but cannot integrate it into the...tools for manipulating cells and organisms. They can be used for a variety of research purposes, like ...cells, among many other uses. Lentiviral vectors can be produced easily, without the need for time-consuming...is then part of the cellular DNA… forever!  This can be an advantage for researchers looking to generate... for integration, two types of circular episomes can be generated through either homologous recombination...expression of Cas9 is no longer necessary. However, Cas9 can be toxic if continuously expressed (Fu et al., 2013...3. Stable expression in non-dividing cells IDLVs can also be useful for transducing non-dividing cells...

  10. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

    Type
    Blog Post
    Published
    March 1, 2016, 3:30 p.m.
    ...master mix of enzymes can be purchased from a company (e.g. NEB or SGI-DNA), or can be mixed yourself (e.g...easy assembly of multiple linear DNA fragments, but can also be used in basic cloning of an insert into your...great part about this mix of enzymes is that they can all work at the same temperature, so the entire reaction...Miller Lab Protocol). The Gibson assembly process can be used to assemble up to 6 fragments in one step... required homology between neighboring fragments can be created via PCR amplification with primers that...fragments. However, by using Gibson assembly, you can insert both the gene of interest and the tag sequences... Excluding the time it takes to get primers, you can have your construct made in 5 days. One drawback...

  11. Plasmids 101: 5 factors to help you choose the right cloning method

    Type
    Blog Post
    Published
    Aug. 21, 2018, 12:31 p.m.
    ...cloning (discussed below) can run on the order of $20-30 per reaction but can be used to quickly generate...fragments in a prescribed order. These fragments can be pooled in one tube and ligated in as little as...needed for this method is relatively inexpensive and can be obtained for about $70, resulting in a price of...dollars per reaction. By comparison, Gibson assembly can cost over $15.00 per reaction if you purchase a pre-made...remember that commercially available cloning kits can often make the process much more streamlined, because...homology based methods, like Gibson or SLIC, since one can pool the components and define their final order ...

  12. Educational Planarian Tools for Teaching Developmental Biology Techniques

    Type
    Blog Post
    Published
    May 24, 2018, 1:20 p.m.
    ...blue. Students can create synthetic riboprobes off of linearized DNA templates which they can easily generate...differ. For example, Girardia sp. and Dugesia dorotocephalacan can be fed dsRNA-expressing E. coli that are...version of L440. This vector is versatile in that it can be used for both in situ hybridization and dsRNA-...bidirectional transcription to create dsRNA. Students can produce DNA templates via PCR off of the same plasmid...comparison. Performing WISH using these plasmids can result in  the labeling specific cell types or entire...number of genes that other classrooms and researchers can easily investigate in planarians. References 1. ...Kimberly C. Tu, Alejandro Sánchez Alvarado, The American Biology Teacher, Vol. 79 No. 3, March 2017; (pp...

  13. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

    Type
    Blog Post
    Published
    May 15, 2018, 12:43 p.m.
    ...researcher can cause them to interact by stimulation with blue light.  Similarly, light can also be used...further probe cellular function. The CRY2clust Plasmid can be found here. Park et al. Nat Commun. 2017. PubMed...“addicted” E. coli strain expressing this operon can serve as a living biosensor for measuring caffeine...pDCAF3 operon, the growth of this knockout strain can be rescued by the xanthine produced via complete ...organization. The design use to detect PKA activity can be generalized to measure phosphatase activity, second...proteins have improved photophysical properties and can be used in quenching, FRET (Förster resonance energy...

  14. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...drop-down and contact Addgene. We can only accept plasmids that can be used under BSL1 conditions.  ...deposit spreadsheet?  Our plasmid deposit process can be broken down into four simple steps: Send plasmid...most involvement with Step 1, and, while data entry can be a chore, we’ve made it easy to send us your plasmid...others need to be filled with short-answer text. You can also directly paste sequence data into the appropriate...rabbit), synthetic, or other. If other, the species can be indicated in the “Species Other” column. Relevant...QUEEN-generated GenBank files (Mori and Yachie, 2021) but can accept sequence files in any format. Distribution...replication, choose the Pir1 strain. If your plasmid cannot be propagated in any of these standard strains,...

  15. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ...split-Cre systems which can take up to 24 hours to cut, Opto-Cre-Vvd is fast and can cut in as little as ...utilizing recombinases to manipulate genomes, scientists can control expression of their genes of interest. While...expression tools in and of themselves, their activity can be fine-tuned and precisely controlled through the...sensitivity to ambient light, and versatile as it can be activated by both low and high-intensity blue ...single active site. The RuvC active site in Casɸ can both process crRNA and carry out the crRNA-guided...human and plant cells. Casɸ from Biggiephage can eliminate competing mobile genetic elements. Image...

  16. Tips for Technical Support Calls

    Type
    Blog Post
    Published
    Sept. 20, 2016, 2:39 p.m.
    ...of accumulated wisdom so that you, the customer, can get the most out of your email or phone call. Though...saying “Hey look! This stuff works!” These papers can be a particularly good resource if you are considering...Hi! We ordered something from you and it’s wrong. Can you help us fix it? Please address as soon as possible...begin my responses asking for more specifics. We can help you faster if we get as much information as ...least the plasmid name in your initial query. This can reduce the number of messages in our thread or remove...but a picture of a gel or a sequencing trace file can go a long way in helping us understand the nature... be courteous. We understand how exasperating it can be to lose time and money on a potentially faulty...

  17. Scientists Map the SARS-CoV-2-Human Interaction Network

    Type
    Blog Post
    Published
    April 9, 2020, 1:15 p.m.
    ... been motivated to do anything and everything we can to help find a cure -- and quickly. Normally drug... approach is to discover key human proteins that can be targeted (hopefully by existing therapeutics that...these experiments, there's so much to do that we can use the whole science community's help. You could... but one are in a pLVX vector background, so you can package them into lentiviral vectors if you need ...FedEx guy has been the best: Thanks, Todd! As you can imagine, it’s also been quite the administrative [email protected] with your order number and so it can be prioritized. ...Arabia -- as well as closer to home in the US and Canada. In fact, we received so many requests (175 and...

  18. Hot Plasmids - December 2019 - CRISPR pooled library, LipoGlo, CRISPRa, and Voltage Imaging Tools

    Type
    Blog Post
    Published
    Dec. 10, 2019, 1:58 p.m.
    ...genome. Thus the gRNAs responsible for a phenotype can be identified by next-generation sequencing of the...readout. This retroviral mouse CRISPR pooled library can be used for screening of cells that are refractory...lipoproteins through the circulatory systems, but can also lead to the formation of atherosclerotic plaques...transmit electrical information. Such voltage imaging can be performed in intact animals and offers many advantages...found several voltage biosensors and conditions that can be used to monitor real time voltage changes in worms...-mOrange and MacQ-mCitrine. All of these sensors can detect action potentials in worms with fluorescence...libraries was not possible. Primary murine T cells cannot be transduced by lentivirus and have been difficult...

  19. Crowdfight, a Platform to Boost Scientific Collaboration During COVID-19 and Beyond

    Type
    Blog Post
    Published
    June 1, 2021, 1:15 p.m.
    ...protocol can save weeks of trial-and-error. A recommendation for the correct statistical test can save a...Spain and works in the field of genetics and cancer. You can follow her on Twitter at @mahesa2504       ...community where both brief and long-term collaborations can be easily started and easily credited. And nothing...scientific research. It’s completely free, of course. You can find more information about us and what we do in ... based in Spain and works on climate change. You can follow him on Twitter at @IgnacioAmigoH     María...while most of the world was locked down, a South African company wanted to test if a type of antibodies ...

  20. Luminescent Imaging with Nano-lanterns

    Type
    Blog Post
    Published
    May 25, 2017, 2:30 p.m.
    ... light exposure can also lead to cellular phototoxicity, and experimental success can be affected by both...biologists over the last two decades, but their use can be limited by a few caveats. Since fluorescent proteins...and showed that these three luminescent proteins can be used together in cells. As Nano-lanterns are not...fluorescence, so higher concentrations of the compound can be added to the media. Cellular esterase then converts...optogenetic tools, where light used for excitation can cause unintended activation of the optogenetic system...proteins (FP) require external light activation, you can’t use fluorescence to monitor processes directly affected... physiology in your system. Optical sectioning cannot be conducted with luminescence imaging since there...
Showing: 401 - 420 of 898 results