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We narrowed to 860 results for: REN;

Showing: 121 - 140 of 860 results

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

    Type
    Blog Post
    Published
    July 28, 2017, 1:30 p.m.
    ...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...

  2. Plasmids 101: Screens vs. Selections

    Type
    Blog Post
    Published
    Nov. 10, 2022, 2:15 p.m.
    ... 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...

  3. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ...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 ...

  4. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ...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. ...

  5. Summer SciComm: Preprints

    Type
    Blog Post
    Published
    Aug. 16, 2022, 1:15 p.m.
    ... 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...

  6. Engaging with science and society at pgEd

    Type
    Blog Post
    Published
    Sept. 20, 2018, 12:17 p.m.
    ...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...

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

    Type
    Blog Post
    Published
    May 22, 2018, 1:38 p.m.
    ...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...

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

    Type
    Blog Post
    Published
    Dec. 1, 2015, 3:30 p.m.
    ...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...

  9. Gaining Leadership Skills Volunteering at a Professional Organization

    Type
    Blog Post
    Published
    Aug. 6, 2015, 2:30 p.m.
    ...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...

  10. Production of Virus in Insect Versus Mammalian Cells

    Type
    Blog Post
    Published
    Nov. 5, 2024, 8:32 p.m.
    ... 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 ...

  11. Light Sheet Fluorescence Microscopy

    Type
    Blog Post
    Published
    July 16, 2015, 2:30 p.m.
    ...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...

  12. A Guide to Getting Started in Undergrad Research

    Type
    Blog Post
    Published
    June 8, 2021, 1:15 p.m.
    ...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 ...

  13. Important Considerations When Using AAVs

    Type
    Blog Post
    Published
    June 13, 2017, 2:30 p.m.
    ... 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...

  14. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    Published
    Feb. 6, 2020, 3 p.m.
    ...across multiple teams or to stay abreast of current trends in the literature, sampling a breadth of work...One thing many scientists enjoy is discussion of current new and exciting literature. As I transitioned ... had concerns that I may not have time to stay current or enjoy that discussion. Luckily, one needn't ...science, researchers of all varieties must stay current with literature and emerging technologies to remain...meeting amongst scientists that aims to help stay current on new and emerging work by collaboratively discussing...the meeting settles in and people get the time recurrently carved out. This notice typically should include...the same figure by figure organization with a different person responsible for each figure. Others still...

  15. What’s in Your Tube?: A Quick Guide to Measuring DNA by Spectrophotometry

    Type
    Blog Post
    Published
    July 1, 2025, 1:15 p.m.
    ...Addgene blog Plasmid Preps: Different Purity, Different Quantities, Different Uses What's the Best Way to... our blog and website.          References and Resources References Ahlfen SV, Schlumpberger M. Effects...Each of these contaminants will have a slightly different impact on the spectra of a mixed sample.  ...A260/230 of ~2.0. However, let’s break down how different contaminants impact these ratios.  Protein contaminants...A260/230 ratio of a DNA sample, its absorbance strength is low compared to other reagents, making it more...concentrations < 10 ng/μL), where absorbance readings are inherently more variable. If you do need to work with dilute... instrument you use and check out some of the references we have provided below. And if you do have trouble...

  16. Antibodies 101: Designing Your First Flow Panel

    Type
    Blog Post
    Published
    May 28, 2024, 1:45 p.m.
    ...can't distinguish the different proteins from each other. To distinguish different target proteins in your...target. By using a mix of different antibody-fluorophore combinations for different markers of interest, you...fluorophore. However, these aren't strict rules and in practice the differences in brightness levels are ... fluorophore's brightness refers to the signal strength of the emitted photons detected by the cytometer...a global maximum at around 560 nm, leading to different levels of brightness, depending on the laser light's...floodlight. For fluorophore brightness levels, these differences are much more subtle (think of brightness levels... Even though the two compounds are completely different in nature (eGFP being a protein and FITC an organic...

  17. With an Eye Towards the Future, We Look Back at the March for Science

    Type
    Blog Post
    Published
    Oct. 24, 2017, 1:54 p.m.
    ...more scientists in our leadership, and raising awareness regarding the pitfalls of accepting alternative...outside the scientific community. Vanessa Sung is currently a PhD student studying breast cancer at the Goodman...Over the last few years, there's been a disturbing trend in the number of high profile people denying science...climate change is a hoax. This has culminated in the current President holding and campaigning on many views...Candidate studying Nuclear Science and Engineering at Rensselaer Polytechnic Institute. He also studies energy...that I expected. Jennifer Stancill, Ph.D., is currently a post-doctoral fellow at Vanderbilt University...fingers of skepticism to defend an agenda that halts current data collection, destroys existing data, and guts...

  18. A Primer on Optogenetics: Introduction and Opsin Delivery

    Type
    Blog Post
    Published
    Sept. 10, 2015, 2:30 p.m.
    ...numerous variants for the different types of opsins available and their differences and uses have been discussed... the different variants [1, 2, 4]. And, of course, the best way to learn about the many different opsin...particular neurotransmitter release or post-synaptic current. Fortunately, if your lab focuses primarily on ...about this in detail later). But what are the different steps in an optogenetics experiment and what are...Biology from the University of Michigan and he is currently a Postdoctoral Fellow in the lab of Mary Jeanne... or follow him on Twitter @derekpsimonphd.    References 1. Tye KM, Deisseroth K. Optogenetic investigation... for analyzing the neural circuits of behavior. Trends in cognitive sciences. 2011;15(12):592-600. doi...

  19. Beyond the Blood Brain Barrier: PHP.B Enters the Central Nervous System Via the LY6A Receptor

    Type
    Blog Post
    Published
    July 23, 2019, 12:46 p.m.
    ...strains of mice. This suggests that a small genetic difference between these two mice might drive their divergent...took a broad approach and searched for genetic difference between the 36 mouse strains that are part of...permissive phenotype, but only one, Ly6a, showed differential protein and RNA expression between the brains...level of CNS PHP.B transduction as their C57BL/6J parent. The second generation (F2) of outbred mice also... if PHP.B required the same receptors that its parental AAV9 relied on for transducing cells: galactose...These results suggested that PHP.B, unlike its parental AAV9, does not require galactose and AAVR to transduce...are not reproduced when the vector is used in different mouse strains. The in vivo selection for PHP.B...

  20. Hot Plasmids - November 2023

    Type
    Blog Post
    Published
    Nov. 14, 2023, 3:35 a.m.
    ... new prime editors, PE6a–g, that overcome some current prime limitations and enable impressive editing...optimized for dual-AAV systems. These variants use different RT enzymes and performed large edits with similar...similar or better efficiency than PEmax, the current state-of-the-art. PE6b was very efficient for short...types. DIRECTED is compatible with fusogens from different viral families and can be used to target multiple... enzymes, TurboID and APEX2, are localized to different cellular compartments. They showed APEX2 can use...uses sequential labeling by TurboID and APEX2 at different cellular locations. C) Enrichment of dual-labeled...stably or inducibly express tagged iPAK4 from different promoters, specific time points appear as fluorescent...
Showing: 121 - 140 of 860 results