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We narrowed to 829 results for: EED

Showing: 201 - 220 of 829 results

  1. Sweating the Small Stuff: Details in the Lab

    Type
    Blog Post
    ...example, I used to constantly underestimate time needed to prep for an experiment (labeling tubes never...after running a protocol a few times, you no longer need the full checklist. Great! But don’t just stop using...into one. Soon you’ll figure out what prompts you need to consistently and accurately run a protocol.   ...they use them.    Prevent Interruptions If you need to focus, a large set of headphones can act as a...wall of pipette tip boxes when she particularly needed to focus, which was extremely effective. Others...at the bench. Don't be afraid to ask for what you need to be successful! Slowing Down At the suggestion...

  2. Will You Be My Mentor? Finding and Asking for Mentoring Support

    Type
    Blog Post
    ...means the mentee needs to be open to change and constructive suggestions and feedback. The best thing ... able to: Help you identify specific skills you need for your current position Understand your interpersonal...of the people you work with Give more informed feedback (for example, they may be able to hear you present...elsewhere is able to: Help identify the skills you will need to make a change Provide perspective on core values...at another company/department Give more candid feedback and be able to discuss more confidential topics...

  3. A Primer on Optogenetics: Introduction and Opsin Delivery

    Type
    Blog Post
    ... have its limitations or that other technologies need to be discarded but clearly we are in an era of ...focuses primarily on behavior, you don’t necessarily need to use electrophysiology to prove that your optogenetic...required. In any given optogenetics experiment you may need to inject virus into 20 or more mice and the injections... die injection prior to using the virus. You may need to adjust coordinates based on your own method of... limited by the mouse line itself. Generation, breeding, and maintenance of a mouse line is also an expensive...terminal also affects the length of time you may need to allow the virus to express. For example, if you...surgeries and viral expression, you are ready to proceed to the material science part of optogenetics. In...

  4. Antibodies 101: Fab Fragments

    Type
    Blog Post
    ...Fab fragment, it either needs to be directly conjugated to a reporter or you need a light-chain specific...antibody. Fab fragments are useful when you just need an antibody’s antigen binding function but not the...antibodies, you can make your own antibody fragments as needed.  In contrast, anti-IgG antibodies, commonly used...fragments make good secondaries for cases where you need to pre-form primary-secondary antibody complexes...about what pieces of the antibody you do and don’t need, and how the protein will interact with other components...

  5. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

    Type
    Blog Post
    ...stabilized promoters incorporate feedback loops such as the incoherent feedforward loop (iFFL). In general, iFFLs...to interpret or can interfere with the precision needed in metabolic engineering or other synthetic biology...deoxychromoviridans requires three genes whose proteins are needed sequentially. When Segall-Shapiro et al. placed... In cases where a specific ratio of products is needed, such as within a multi-protein complex, stabilized...between the different components. When your pathway needs precise fine-tuning of gene expression levels, give...

  6. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    ...primers, or mammalian selection markers. You don’t need a fancy database to organize your own plasmid collection...of your lab can access and use the materials they need, and avoid duplicating your effort. In addition,... it will be easy to find all of the information needed for the process. Always sequence verify Once the...sometimes more depending on the number of features we need to verify. Determining which features to verify ...Remember, when designing a sequencing primer, you need some space between your primer binding site and ...high-throughput plasmid sequencing If you’re like us, you need a strategy for processing several sequencing reactions...

  7. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    ...deposit process. To deposit plasmids online, you will need to create an account with Addgene before starting...depositing 10 or more plasmids. (If you believe you need to deposit a collection that is greater than 75 ...contains columns that correspond to the plasmid data we need; you can copy and paste your information directly...antibiotics, etc.) and stored as glycerol stocks We will need information on how to verify any genomic alterations...modify the gene/insert and alternative name boxes as needed. Use the "Relevant mutations/deletions" box to ...entry fields to describe the next insert. Repeat as needed for more inserts. When you are finished entering...addgene.org. Include your deposit number and which data needs to be updated. When your plasmids arrive at Addgene...

  8. Production of Virus in Insect Versus Mammalian Cells

    Type
    Blog Post
    ...many cases where the specific viral particles you need are not available, or the cost of custom viruses...too high for your budget. In those cases, you’ll need to produce your viruses in-house.   Introducing...trying to make. For example, bacteriophages will need to be produced in bacteria cells. However, some ... producing a stock P1 virus, so that if you ever need to remake the same virus, you can skip the first... just two days, but add additional costs and may need to be optimized for your purpose. Making your decision... Baculovirus; can produce AAV and lentivirus if needed # of plasmids Three or four Two Packaging limit...

  9. Sharing Your Lab Protocols: Using Apps to Save Time & Track Your Experiments

    Type
    Blog Post
    ...start-ups are turning to software apps to solve our need for quicker, more effective updating and dissemination...protocols when they begin their own experiments. Need to submit an updated protocol? Just email us at ...departments, industry, and more to fit every lab's needs. Plus there are the apps - many to help you access...solution to your lab's organization and management needs. With Quartzy you can share protcols with your labmates...your thoughts on how the app works for your lab’s needs. At Addgene, we’ll continue to create new molecular...and wikis - by Rory Macneil on Bitesize Bio Data Freedom: The Expansion of Data Sharing in Research Publications...

  10. Twenty Years of Sharing: Expanding Accessibility

    Type
    Blog Post
    ...customs processes, and the distances the packages needed to travel meant the accessibility varied country...showing exactly how to execute a step can provide needed clarity (Table 1). Our most popular video, however...measure of our educational resources’ value is feedback from the researchers who use them. The best part...out to ask if they can help us create or update a needed resource, and when they tell us how they use our...to enable virtual learning during the pandemic. Feedback like that lets us know that Addgene’s materials...internationally, after all, that we could identify the need for distributors in some countries. ‌We’ve developed...

  11. Plasmids 101: Stringent Regulation of Replication

    Type
    Blog Post
    ...own expression, so high levels of DnaA act as a feedback mechanism to reduce further transcription. Replication.... Fun fact! As far as we can tell, DnaA doesn’t need to hydrolyze ATP to do its job — although ATP does...for a given plasmid has been reached, negative feedback circuits reduce replication of the plasmid to ...plasmid ori, after which replication of the plasmid proceeds (and terminates) similarly to the bacterial chromosome...controls the copy number of pSC101 through a negative feedback cycle. As with DnaA, high concentrations of RepA...given plasmid influences how high the copy number needs to get before handcuffing occurs. These mechanisms...

  12. Transferable Skills Guide: Career Planning Resources

    Type
    Blog Post
    ... and by offering advice on areas where you might need some help. Today: Career Planning Resources. The...be a graduate student or postdoc forever, and you need to be thinking about what comes next. To that end...attending one of these fairs is a great start, but you need to do more than just show up. Do your homework and...employer in mind, you may consider starting with indeed.com or monster.com, where you’ll find a variety of...hope to have a career outside of academia, you may need to look a bit harder to find your mentor. This may...even be a colleague. A mentor does not necessarily need to be someone a lot older than you are; try using...

  13. Save Time with Transient Plant Leaf Transformations

    Type
    Blog Post
    ...this problem in C. roseus by working with young seedlings and optimizing several other aspects of the transient...D'Aoust et al., 2009): Usually a syringe without a needle is used to inject an Agrobacterium culture through... a great help in screening candidate genes and speeding up research. Certainly, there is still more to...Ching-yeh, et al. "Intrinsic GUS-like activities in seed plants." Plant cell reports 9.1 (1990): 1-5. PubMed...method for transient gene expression analysis in seedlings of Arabidopsis and other plant species." Plant...analyzing gene function in Catharanthus roseus seedlings." Frontiers in plant science 10 (2019). PubMed...

  14. PEI Calculator for Planning AAV Packaging Transfections

    Type
    Blog Post
    ... of each plasmid needed for the whole experiment Total volume (μL) of plasmid needed for the whole experiment...specific molar ratios. To get these ratios right, you need to do a few calculations. This calculator can do...will calculate the following μg of each plasmid needed per dish or stack. Calculations are based on using...equation the calculator uses to give you the μl needed of each plasmid. Each part of the equation is labeled...

  15. The Advances Behind The World's First Personalized CRISPR Treatment

    Type
    Blog Post
    ...Musunuru et al., 2025). Much has been made of the speed with which KJ’s successful base editing intervention...private companies, and federal regulators. But the speed is impressive on a larger scale, too. The first ...scientific effort. As we like to say at Addgene: sharing speeds science. Here, we’d like to highlight the advances...these early base editors. Further innovations were needed! Minimizing off-target editing ABEs were originally...targeting base editors to problematic mutations would need to change to target different mutations in different...different patients. While these gRNAs would still need to be optimized and assessed for off-target risks,...

  16. Antibodies 101: Normalization and Loading Controls for Western Blots

    Type
    Blog Post
    ...ll cover the normalization and loading controls needed for relative quantification of a western blot —... it’s overkill in many cases. Often, you may not need to know the exact quantity of your POI, but simply...normalization is a nearly ubiquitous tool, but proceed with caution! Loading controls only address one...your context. If you don’t find anything, you’ll need to conduct a control experiment to demonstrate that... in a separate step from the POI blot, you don’t need to worry about the linear detection ranges of multiple...increasing concentration of β-actin in panel A. Indeed, the quantification in panel B is not especially...

  17. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    ... in almost all organisms and cell types, (ii) no need to add a co-factor, (iii) easy visualization with...EGFP variant, mEGFP (Zacharias et al., 2002). GFP needs oxygen Chromophore formation requires a fully folded...specific biological system under anaerobic conditions needs to be examined on a case-by-case basis. GFP is sensitive...light by a chemical reaction and hence, there is no need to excite the sample. Although bioluminescent probes...for biological spectroscopy and microscopy." Proceedings of the National Academy of Sciences 114.23 (2017... real-time multicolor luminescence imaging." Proceedings of the National Academy of Sciences (2015): 201418468...

  18. 10 Steps to a Perfect Science Talk

    Type
    Blog Post
    ...narrative. Scientists do this all the time, you just need to figure out how to make it suspenseful. 4. Start...your talk early - like today Don’t wait until you need to speak to start creating slides or thinking about...will be familiar with the terms. If you feel you need to define a term, but are worried that this might...but not reading the explanation. The people that need the information will find it. Experienced speakers...mentoring groups to practice giving talks and getting feedback. Wouldn’t you rather hear it from your peers than... many things. One good topic or story is all you need, if you do it well.  Resist the urge to show all...

  19. 500,000 Plasmids Shipped and Counting!

    Type
    Blog Post
    ... scientists by bringing you all the plasmids you need. We're focused on our mission – documenting your... for scientists everywhere to get the tools they need to progress their research. *2015 total reflects... our growing community! Our plasmid repository succeeds because of our amazing community. The trust of...transfer offices that facilitate MTAs. The great feedback from scientists who request plasmids and use our...from our blog readers. You all drive Addgene to succeed and to improve, so thank you. 500,000x Thank You...

  20. Viral Vectors 101: Optogenetic Tools

    Type
    Blog Post
    ...do you decide which tools to use, and what do you need to know about them to be successful in your experiments...to activate or inhibit specific neurons without needing to consider secondary signaling pathways. There... of tool appropriate for your experiment, you’ll need to find a specific tool. There are many, many options...times or frequencies (Zhang & Cui, 2015). You’ll need to test for these differences when designing your...previously published system in your own work, you’ll need to know (and understand!) the hardware types, construction...light-gated cation-selective membrane channel. Proceedings of the National Academy of Sciences, 100(24),...
Showing: 201 - 220 of 829 results