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We narrowed to 1,013 results for: REN;

Showing: 261 - 280 of 1013 results

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

    Type
    Blog Post
    ...not fluoresce. A dark population is not readily apparent and can confound quantitative imaging experiments...posttranslational modifications can disrupt FP folding rendering the protein non-fluorescent. Unfortunately, accumulated...palette of FPs (moxFPs) [5]. The moxFPs overcome the inherent problems of popular fluorescent proteins and were... green and blue or cyan and yellow moxFPs. The inherent brightness and spectral characteristics of the...the moxFPs are comparable to the non-optimized parental proteins. Our recent publication illustrated the...most, if not all, of the FP fusions. Our moxFPs currently represent one of the most inert solutions for ...at the National Institutes of Health and he is currently an Associate Professor at Albert Einstein College...

  2. Plasmids 101: Control Plasmids

    Type
    Blog Post
    ...multiple times and on different days. Using our example above, we would test different preparations of Plasmid...Plasmid A in different aliquots of cells on several different days. Biological replicates control for ...There are many, many different types of experiments carried out by scientists every day. Although the... the results because it provides an important reference point when analyzing the specificity of the shRNA...variable should be consistent over time and from different preparations of the purified test plasmid expressing...a bit more below, but the papers cited in the reference section provide more in depth information. Technical...aliquots of cells and plasmids, be performed on different days, etc, but outside constraints may impose ...

  3. Single-cell tracking of lineage and identity with CellTag

    Type
    Blog Post
    ...endoderm progenitors (iEPs), a self-renewing cell type that can differentiate into hepatic or intestinal cell... tool. Check out the CellTag webpage! References Biddy, Brent A., et al. "Single-cell mapping of lineage...Direct reprogramming describes the process where differentiated cells are turned into a cell type of choice...identifier and allows cells to be tagged with different CellTag libraries at multiple timepoints during...inefficient. Cells were sequentially tagged with different CellTag libraries at three time points during ...are undergoing identity changes, such as the differentiation of induced pluripotent stem cells or the clonal...reprogramming and direct reprogramming Explore different methods for delivery of reprogramming factors ...

  4. New Neuroscience Tool: The iGluSnFR3 Glutamate Sensor

    Type
    Blog Post
    ...of iGluSnFR   iGluSnFR was developed in 2013 by Loren Looger’s lab at HHMI Janelia Research Campus to ...medium affinity for glutamate), that came in three different colors – blue (SF-Azurite-iGluSnFR), green (SF-iGluSnFR...glutamate signaling events, and accurately differentiating between synaptic vs. extrasynaptic glutamate...and ∆F/F0. Introduce the two variants in three different membrane-targeting flavors – PDGFR, GPI, and SGZ...Figure 1   Increased versatility through two different variants The yellow (v82) and lime green (v857... Figure 2: Glutamate titration curves for the different iGluSnFR variants. Image adapted from Aggarwal...Figure 3: pH titration curves and ∆F/F0 for the different iGluSnFR variants. Image adapted from Aggarwal...

  5. Addgene at SfN23!

    Type
    Blog Post
    ...duration of the conference (be warned, the hand sanitizer does go quickly!)  The Conference How many Addgenies... to brush up on your conference skills, check out some of our helpful conference blog posts before you...Scientific Conference Poster Session TipsHow to Make Friends and Meet People at a Scientific Conference New ...Getting ready for Society for Neuroscience Conference 2023? So are we! Come say hi to us at Addgene's...favorite content strategist, Jo. While we've all got different areas of expertise, we are each equally excited...invite you to join us! We'll also be sharing our conference experience on X, Instagram, and Bluesky.   Finally...

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

    Type
    Blog Post
    ...overexpress or knockdown a gene, you might need different plasmids. Harvard’s DRSC/TRiP Functional Genomics...varying expression levels of your transgene in different fly lines. Also, if there is a chance you need...transgenes in one fly, having the transgenes in different loci allows for genetic recombination so that ...for direct comparisons between lines expressing different variants of YFG because the transgenes are found...remember that you’ll need to integrate them all at different loci. Fortunately, there are many docking sites...docking site is located). This amounts to a small difference of two or three weeks. 3. How would you like ...experimentation. Drosophila are amenable to many different kinds of experimental assays depending on your...

  7. Plasmids 101: Screens vs. Selections

    Type
    Blog Post
    ... thinking, ‘wait, those terms mean different things?!’, you aren’t alone! We’ve noticed a lot of scientists...in. The differences They say the devil is in the details - and that’s where the differences in these... RNAi resources and go fishing! References and resources References Wang, T., Wei, J.J., Sabatini, D....selections The common goals The confusion in differentiating between a screen and a selection isn’t surprising... you would individually treat cells with many different drugs and then perform an assay to look at an ... No one wants to spend time screening hits that aren’t “real” or novel for their purposes… or worse yet...experimental question. Now that you understand the difference between the two, it’s time to check out our CRISPR...

  8. Behind the scenes: Addgene’s new search engine and more

    Type
    Blog Post
    ...findability” of the information on the site. Different users have different strategies for finding what they need...the overall user experience of our website, the different website navigation paths, the organization and...software team tailored Elasticsearch to support the different usage patterns the larger team identified. The...our catalog of materials and services is quite different from the way it searches through our educational...information in our search indices in order to support different kinds of matches: exact words, partial words, ...or numerical identifiers. We also combine the different terms in a query in a way that allows users to...Weighting We determined the relative importance of different bits of information for a given resource, and ...

  9. A Needle in a Base-Stack: Cas9 Structural Biology

    Type
    Blog Post
    ...between Cas9 enzymes from different species, explaining why they recognize different guide RNAs. Deep in the...Other CRISPR enzymes like Cas12 have different structures and different uses. In all cases, structural biology...includes most of the bridge helix. Created with BioRender.com.   Cas9 has two major lobes, called NUC ...guide RNA (PDB ID 4ZT0), shown opaque (left) and transparent (right). The RNA guide sequence is extended as...target DNA (PDB ID 7S4X), shown opaque (left) and transparent (right). Some nucleotides of the non-target DNA...from the same angle to highlight conformational differences. HNH, red; RuvC, orange; CTD, yellow; REC lobe...; DNA, gray; PAM site, yellow. Created with BioRender.com.   The exact conformational changes that...

  10. 27 Hot Plasmids from 2016

    Type
    Blog Post
    ...containing many different promoters, RBS’, coding sequences (CDS), and terminators of varying strengths. These ... developed for the study of enhancer function, strength, and binding (e.g. DHS-seq, FAIRE-seq, and CHIP-seq...variable availability of enhancer sequences in different chromatin states. Alexander Stark and colleagues...transcription from the minimal promoter and its strength can be determined from its enrichment over input...process of cloning, combining, and testing these different parts can be quite arduous. The cloning process...that control many cellular processes such as differentiation, proliferation, and apoptosis. In humans, mutations...To facilitate innovative cancer research, the Reference Reagents Group of the NCI RAS Initiative, led ...

  11. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    ...ligation mix in different bacterial strains (stbl2, NEB stable, etc.), and/or use a different temperature ...want to assemble together in a combination of different ways according to your cloning strategy: Restriction...buffers and temperature are compatible between the different enzymes. Always check the fragments size of your... There are multiple ways you can assemble the different parts of a plasmid based on the cloning strategy...attention in the areas of ligation between the different fragments If you don’t get any positive clone...might want to reconsider your approach, and try a different cloning strategy. Once you've identified potential...Nature, and other journals.   Paolo Colombi is currently the product development scientist at Addgene. ...

  12. Summer SciComm: Preprints

    Type
    Blog Post
    ... These each have different goals, formats, and processes, and they provide different amounts of access...research during his PhD studies.  References and Additional Resources References ASAPbio, Preprint Resource ...like publishing a research article, presenting a conference poster or talk, or submitting patent or grant..., and increase their impact. Open Access and Transparency Another major benefit of preprints is their ...Going to present some unpublished results at a conference? Post your working manuscript as a preprint too... work too openly too soon or simply a lack of awareness of the benefits of preprints. Some worry about...be prone to biases or errors, with a lack of transparency in most review processes. Preprints and their...

  13. Pathways Over Time Plasmids Engage Students in Functional Genomics Research

    Type
    Blog Post
    ...section, teams are assigned different groups of three genes selected from different parts of the Met pathway...first select a multi-gene pathway to study and a reference organism where deletion strains are available....Students next transform deletion strains from the reference organisms with the overexpression plasmids. Finally...species has a similar function to the gene in the reference species. We have been using yeast models (3, 4...yeast, Saccharomyces. cerevisiae, makes a great reference organism for the project because it is non-pathogenic.... Over time, the two genomes have become very different due to a whole genome duplication and extensive...cloning to insert the coding sequences for ten different MET/Met genes (Figure 1) from the two yeast species...

  14. Engaging with science and society at pgEd

    Type
    Blog Post
    ...engage broadly with diverse communities, to raise awareness about where science is and where it is going, ...Personal Genetics Education Project (pgEd), where I currently work, strives to broaden the conversations about...Harvard Medical School, has a mission of raising awareness and starting conversations about both the benefits...and epigenetics. So, I sought out a number of different opportunities to broaden my training beyond the...major part of our everyday work is to liaise with different organizations and individuals, to identify ways...collaborating, and to organize events that bring different voices together to talk about genetics. In addition... such as scientific, educational or industry conferences, as well as schools, community events, churches...

  15. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

    Type
    Blog Post
    ...of the Canton Nucleic Acids Forum (CNAF) 2015 conference invited me to attend and speak about Addgene’...attended by over 300 Chinese scientists eager to hear current findings in nucleic acid science. I was delighted...Thoughts on Guangzhou and the Science City The conference was located in the modern, relatively new “Science...national science and technology park, it enjoys preferential governmental policies for a high-tech development... which I could identify. There were dozens of different mushroom varieties alone. At least I could tell...requires an interdisciplinary team.  Day two of the conference was kicked off by Nobel Laureate (and Addgene...circRNAs do yet or how they do it. Of course, No conference would be complete without CRISPR Michael Terns...

  16. Gaining Leadership Skills Volunteering at a Professional Organization

    Type
    Blog Post
    ...to learn how to adapt to different situations and, in particular, to different styles of leadership. As...must accommodate many different types of people in order to harness their strengths and work effectively...to learn more. Having met many people at that conference, I later became involved with the NPA beyond ...within the committee, I became Vice-Chair when the current Vice-Chair stepped down. When the Chair then stepped... the Committee which I then led for 5 years.  Different leadership styles Being an effective leader requires...requires you to understand how to work with many different types of people both above and below you. During...relationships with these individuals who often had different styles from their predecessors. Changes were implemented...

  17. Production of Virus in Insect Versus Mammalian Cells

    Type
    Blog Post
    ... or looking to improve your current methods, understanding the differences can help you make an informed... Resources References Shaw, G., Morse, S., Ararat, M., & Graham, F. L. (2002). Preferential transformation...make the virus. Viruses can be produced in many different cell types, spanning both prokaryotic and eukaryotic...However, some viruses can be produced in multiple different cell types, including plants, mammals, and insects... transfer plasmid. The transfer plasmids have different packaging capacities depending on the virus. AAV... which system to use will come down to which differences are most important to you — virus type, cost,...this post has provided some insight on these differences in viral production and will help you decide ...

  18. Light Sheet Fluorescence Microscopy

    Type
    Blog Post
    ...first successful attempt to render fixed anatomical preparations transparent was done by Walter Spalteholtz... Pubmed. J. Sharpe, U. Ahlgren, P. Perry, Hill B, Ross A, J. Hecksher-Sorensen, R. Baldock,  D. Davidson...microscopy coupled with techniques that make tissues transparent are enabling microscopes to visualize the cellular...spinal tract, CST, spinal cord and cranial nerve afferents labelled with a AAV8 expressing eGFP under the...sample and captured the reflected light using a different objective lens oriented perpendicular to the plane...of clear specimens and for in vivo imaging of transparent organisms. Advances in tissue clearing Similar...Find plasmids from the Tsoulfas lab here.     References: H. Siedentopf, and R,. Zsigmondy.  (1902) Ann...

  19. Important Considerations When Using AAVs

    Type
    Blog Post
    ... This preferential tropism for different brain regions is largely due the ability of different serotypes...tissue? What is commonly known is that different serotypes have different tropisms but, as you can see, AAVs...there are marked differences among serotypes in their efficiency at transducing different brain regions....serotypes to infect different cell types. In the CNS, it has been shown that there is variable transduction...skeletal muscles, and the central nervous system. Currently, AAVs are being used to deliver CRISPR/Cas9 but...transduction efficiency, and safety profiles should strengthen its appeal for the scientific and medical communities...movement. Follow her on twitter @katrinaboards.   References 1. Russell, David W. "AAV vectors, insertional...

  20. A Guide to Getting Started in Undergrad Research

    Type
    Blog Post
    ...presenting your research at conferences such as SACNAS and ABRCMS. These conferences have a lot of programming...her on Twitter @EleanorWang.     References and resources References Canning EA, LaCosse J, Kroeper KM...new therapies can be developed and applied. The current pandemic serves as a striking example of the applicability... is a supportive environment—it makes all the difference in a lab experience. “Mentorship” was a bit of...interested in doing research and attending research conferences. The Barry Goldwater scholarship is also a national...graduate programs, recruiters will attend these conferences to answer questions and offer application fee...explore! Addgene has an entire page dedicated to different career options from science policy to science ...
Showing: 261 - 280 of 1013 results