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Showing: 331 - 360 of 1015 results
  1. What Do I Do Now? Academic v. Non-Academic Career Decisions

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    Blog Post
    ...industry.” In his article On Leaving Academe, Terran Lane is asked by his colleagues and friends why he would...in the Boston area that demonstrate that 85% of leaving postdocs pursue a career outside the traditional... like this without sufficient data? Starting to learn about the diverse options and how to take advantage...there. Additional Resources on the Addgene Blog Learn about Possible Science Careers How to Negotiate ...for Scientists Series Resources at Addgene.org Learn About Careers at Addgene ...
  2. Mentoring for Scientists: I Have a Mentor, What Now?

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    Blog Post
    ...start – it is the discussion after that will lead to learning. Listen to our podcast interview with Harvard... take informal minutes on what was covered and learned, especially noting action items that are identified...Harvard Medical School researcher Connie Cepko to learn about her mentoring style. Set goals with a mentor.... There are many advantages to being a Mentor: Learn other perspectives Develop coaching skills Encourage...Encourage your creative thinking Enhance leadership skills Support inclusion, diversity, and open communication...
  3. "Build Your Plasmid": The Game - Play to Teach

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    Blog Post
    ...game that would force my students to use concepts learned from previous lectures, articles and books. A game...board with them. My impression was that they had clearer ideas about gene therapy in the following lessons...perhaps the ideas spurred by this “gamification” will lead to new cures for disease someday! Accessing and ...modify BUILD YOUR PLASMID or generate games like it, please freely share your projects with us! This exchange...want to receive our modifiable powerpoint file, please feel free to contact us at: [email protected] tools for teaching developmental biology Learn how BioBuilder can help teach students about Synthetic...
  4. Scientists Map the SARS-CoV-2-Human Interaction Network

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    Blog Post
    ...back: David Gordon, Jeff Guo, Fengbo Zhou, Paddy O’Leary (UCSF). Our approach is to discover key human...FDA-approved). This is a big job, but under the leadership of Nevan Krogan at UCSF we’ve brought together...preclinical studies already. We are following up on these leads as we speak, with collaborators in Paris and New...affected in various ways by the pandemic, it is clear that we have to stick together (6 feet apart), to...shout out to Margaret Soucheray, Jeff Guo, Paddy O’Leary, Fengbo Zhou, Helene Foussard, and Dave Gordon)... plasmids for coronavirus or COVID-19 research, please email Addgene at [email protected] with your order...
  5. Plasmids 101: Gram Negative and Positive Bacteria

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    Blog Post
    ...while the alcohol used in the staining process bleached another, Klebsiella pneumoniae. After realizing...safranin, as a counterstain to help visualize the bleached bacteria. The chemistry behind Gram’s crystal ...drop by drop onto the smear until the alcohol runs clear and immediately rinse. Flood the smear with the ...Rinse the slide in tap water until the runoff is clear, blot gently to dry, and then view under an oil ...peptidoglycan membrane is unable to retain the stain, leading to its decolorization. In contrast, counterstain...visualizing differentiations between bacteria, leading to safer medicine and more successful experiments...
  6. Addgene-Seeding Labs plasmid grant round 3: microbial drug resistance and biofilms, antidiabetic plant components, visualizing brain injury - and a glowing robot fish

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    Blog Post
    ...drug discovery, and synthetic biology. Read on to learn more about the five awardees and their promising...their use as food, infusions of L. taraxacifolia leaves are widely used to treat several diseases. Her ..., the most common type of stroke and the third leading cause of death and disability worldwide. An ischemic...ischemic stroke occurs when arteries leading to the brain become blocked, resulting in reduced blood flow...awards. Additional Resources on the Addgene Blog Learn More About the Addgene-Seeding Labs Plasmid Grant...Expression Systems Synthetic Biology Resources Learn about Global Plasmid Distribution ...
  7. Plasmids 101: How to Verify Your Plasmid Using a Restriction Digest Analysis

    Type
    Blog Post
    ...Avoid star activity. Some endonucleases (for example BamHI) are capable of cleaving sequences which are similar...cloned the plasmid yourself or obtained it from a colleague down the hall, it is always a good idea to take...incubating your DNA with restriction enzymes which cleave the DNA molecules at specific sites and 2) running...manufacturers make High Fidelity versions of the endonucleases and/or supply custom buffers as means to avoid...is not just necessary but also an easy process. Please vist Addgene's resource for plasmid verification...
  8. Using AAV for Neuronal Tracing

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    Blog Post
    ...review see Maday et al., 2014). It is currently unclear which proteins facilitate transport of neuronal...expansion of RABV. This improvement resulted in a clearer picture of neuronal connectivity in the mammalian... mapping of the neuronal circuitry involved in learning and memory (Kohara et al., 2014; plasmids at Addgene...particle is taken up on one side of the cell and released again at another side of the cell after intracellular...transport without actually causing infection or leading to transgene expression within the first cell. ...development of more powerful AAV serotypes, and perhaps lead to controlled trans-synaptic spread of AAV vectors...21782903. McFarland, N.R., Lee, J.S., Hyman, B.T., and McLean, P.J. (2009). Comparison of transduction efficiency...
  9. Why and how to start studying chromatin (with Addgene's help)

    Type
    Blog Post
    ... see by this post’s chromatin illustrations from Leah Bury of Microscopic Art. I started thinking about... we definitely don’t have that you really want, please let us know! And if you study chromatin and want...indicated gene, and you can subscribe to these pages to learn when Addgene receives new plasmids containing these...t see the gene you’re looking for on this list, please consider searching directly on our website. ... 25. 95(5):625-36. An architectural role for a nuclear noncoding RNA: NEAT1 RNA is essential for the structure...Addgene blog post about chromatin--multiple Addgene colleagues and guest bloggers have written posts describing...
  10. Viral Vectors 101: Viruses as Biological Tools

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    Blog Post
    ...specific. Once inside the host cell, the virus unleashes its cargo – its own genome.   Fig. 1:...access to the host genome requires breakdown of the nuclear envelope, which occurs during mitosis. The most...and dividing cells. They accomplish this through nuclear localization signals which can traffic their viral...PMCID: PMC413431. 2. Bukrinsky MI, et al. “Active nuclear import of human immunodeficiency virus type 1 preintegration...PMC1368960. Additional Resources on the Addgene Blog Learn More about Lentivirus Listen to Connie Cepko Discuss...Resources on Addgene.org Browse Our Viral Vector Pages Learn About Viral Vector Biosafety Deposit Your Viral ...
  11. Q&A with Karen Katz and Carl Paratore, the Newest Members of the Addgene Board of Directors

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    Blog Post
    ... or profession, you need to make sure you have learned and mastered the fundamentals.   What are your ...of the office? Katz: I have a puppy and so I am learning how to train a dog with my daughter. It’s super...with our new dog, Daisy, or out on golf course! Learn more about Karen Katz, Esq Ms. Katz is the Director...Boards of BioBuilder and Brookline Interactive. Learn more about Carl Paratore, MBA, CPA Mr. Paratore ...Auditor at Tufts Health Plan. In that capacity he leads the Internal Audit function and is responsible for... MA. Additional resources on the Addgene blog Learn more about about Addgene in our "Inside Addgene"...
  12. Flow Cytometry Readouts: Yes, No, and Everything in Between

    Type
    Blog Post
    ... two results for your antibody of interest: two clear populations or a huge smear across your FSH vs reporter...intensity. Signals any higher than this may not be clearly picked up by the sensors. You can adjust this by... positive population between 103.5–104.5 for a cleaner readout. A yes-no plot If you are using an antibody...sample (right). Negative and positive samples are clearly distinguishable as two separate populations. Created... data as a dot plot.  To summarize, if you have clear positive and negative populations for your marker...compare between samples. In cases where there is no clear distinction between the presence/absence of your...
  13. Hot Plasmids - June 2019 - Optogenetics, Acoustic Reporter Genes, microRNAs, and the CRISPR-Cas9 system CHIME

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    Blog Post
    ...which cleaves the synaptic protein VAMP2, a protein essential for synaptic transmission. Cleavage of VAMP2...ever like to write about a recent plasmid deposit please sign up here.      Listen to this episode of the... it inactive, thus inhibiting neurotransmitter release. How is this light-mediated? The researchers split...split botulinum neurotoxin halves to enable VAMP2 cleavage, and suppresses neuronal transmission within minutes...differentiation. Furthermore, TALEN and ZFN require custom nucleases for each gene of interest. CRISPR-Cas9 tools have...
  14. Luminescent Imaging with Nano-lanterns

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    Blog Post
    ...affected by light. Long-term light exposure can also lead to cellular phototoxicity, and experimental success...can be affected by both autofluorescence and photobleaching. Researchers have long been interested in using...reality, Addgene depositor Takeharu Nagai and colleagues at Osaka University have developed Nano-lantern... cells. As Nano-lanterns are not subject to photobleaching/phototoxicity, they successfully imaged multiple...applications. For long-term imaging, especially where photobleaching and phototoxicity are a concern, these constructs...Addgene. Additional Resources on the Addgene Blog Learn about Photoactivatable Fluorescent Proteins Check...
  15. Enabling Precision Functional Genomics with the Target Accelerator Plasmid Collection

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    Blog Post
    ...Blog Learn About our Cancer Colleciton Pages Use the ClonTracer Library for Lineage Tracing Learn About...to well-annotated cellular pathways). It wasn’t clear whether gene-agnostic bioassays could accurately...proud to have worked closely with our Addgene colleagues to make these available to the scientific community...10.1016/j.coisb.2017.02.002. We hope that by releasing these new and exciting plasmid collections (together...clinical sequencing studies. At the Broad, my colleague Cory Johannessen and his team have recently demonstrated...
  16. CRISPR 101: Non-Homologous End Joining

    Type
    Blog Post
    ...polymerases (Pol μ and Pol λ), nucleases (Artemis), and structure-specific end cleaning enzymes (Aprataxin, Tdp2...Cas9 protein doesn’t immediately release from the broken end after cleavage, which may interfere with loading... the products of accurate repair are easily re-cleaved while indel products aren’t, so repeated cycles...latter products. As noted above, a single cycle of cleavage and accurate repair should take less than an hour...
  17. Pooled CRISPR Libraries Offer Genome-Wide Control for Large-Scale Functional Screens

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    Blog Post
    ...activate essentially any gene,” she says. The technical leap from mutating and deactivating a gene or genes to...published in Nature in December, Konermann and her colleagues in Feng Zhang’s lab describe just such a system...transcription activation processes. Konermann and her colleagues demonstrated the new system by screening for ...in those 15,977 human genes. Weissman and his colleagues demonstrated in a paper in Cell that they could...which guide RNA we use. What we have to do now is learn more about the rules.” He said that there is no ... These libraries are lentiviral in nature, so please ensure that you are equipped and authorized to ...
  18. A Primer on Optogenetics: Introduction and Opsin Delivery

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    Blog Post
    ...that other technologies need to be discarded but clearly we are in an era of neuroscience research where... the technique is remarkably straightforward to learn and relatively cheap (compared to many other technologies...Program (NIH-NIDA IRP), with the stated goal of learning behavioral optogenetics in order to implement ... to share some of the tips and tricks and I’ve learned from numerous scientists at NIDA and some of the...region can result in a particular neurotransmitter release or post-synaptic current. Fortunately, if your ...variants [1, 2, 4]. And, of course, the best way to learn about the many different opsin variants and how ...University.  His interests include the role of learning and memory in opioid addiction and science communication...
  19. Oh, The Places You Can Go: Careers in Science Communication - Writing for a Research Institute

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    Blog Post
    ...she made through this program lead to her current job. “One of my colleagues in the class was like, “Hey...people are,” says Susan. Her passion for insects lead her to start a PhD in entomology at the University...which Susan replied, “What’s a science writer?” Learning about SciComm by doing SciComm Writing had always...Evaluating evidence. Critical thinking. Being able to learn things quickly. Story telling. The ability to know...tips for using social media as a scientist here Learn more about storytelling in science ...
  20. dTAG - You're it!

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    Blog Post
    ... into close proximity with the target protein, leading to polyubiquitination of the target protein and...proteasome machinery through binding with cereblon, leading to rapid target degradation (Figure 1). Plasmids...ortho-AP1867) via various chemical linkers. Our current lead dTAG molecule is dTAG-13 due its immediate action...happy to share aliquots of dTAG-13 in the meantime, please address your requests for dTAG molecules and any...terminus is favorable for tagging. However, if it is unclear which terminus should be tagged, the dTAG lentiviral... interested in targeted protein degradation, and lead author on the recent paper describing the dTAG technology...
  21. Channelrhodopsins with improved light sensitivity for minimally-invasive optogenetics

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    Blog Post
    ...s lab and Viviana Gradinaru’s lab used machine learning to design new channelrhodopsins that are more ...channelrhodopsin that’s successful in vivo. Using machine-learning to overcome channelrhodopsin design challenges... Arnold and Gradinaru Labs developed a machine-learning model to help them construct “designer” channelrhodopsins...and secure a fiber optic cannula to the skull, leaving the brain intact. When the fiber optic light was...Mackey ED, Gradinaru V, Arnold FH (2019) Machine learning-guided channelrhodopsin engineering enables minimally... PHP.eB AAV capsid Read more about optogenetics Learn about the differences between chemogenetics and ...
  22. All in a Twist: dsRNA

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    Blog Post
    ...these molecules are clearly associated with cellular damage and dysfunction, it is unclear what the precise...Transposable elements such as long/short interspersed nuclear elements can generate dsRNA by bidirectional transcription...silenced, but dysregulation of these systems can lead to local dsRNA production. In the same vein, genotoxic...barring a loss of mitochondrial integrity that would release them into the cytosol. Fig. 2: Endogenous... of DNA damage, and these structures can in turn lead to genome instability. Thus, it’s important to strike...
  23. Reproducibility for Everyone: Lessons from an Open Science Collaboration

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    Blog Post
    ... this cause and helped by expanding this team, leading monthly calls, and planning next steps. April Clyburne-Sherin...future of reproducibility workshops and lessons learned: Since early 2018 the team has grown to include...all levels of the scientific community. Lessons learned Instead of continuously talking about a problem...like to join or contribute to this collaboration, please check out the official website, follow the group...conversations on the history of the group, lessons learned, and to Sonali Roy, Magdalena Julkowska, and Jennifer...on Transferable Skills: External Collaborations Learn about the 2018 Minisymposium on Scientific Reproducibility...
  24. The Breast Cancer Microenvironment: A Tumor’s Backstage Team

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    Blog Post
    ...metabolism. Cancer cells promote oxidative stress leading to the degradation of one key enzyme (among others...built to protect us now seems to attack us by releasing mitogenic growth mediators and improving cancer... When it comes to breast cancer, Hoshinho and colleagues found that after injecting breast cancer cells...process is not fully understood, a team of researchers lead by Takayuki Kogure (Kogure et al., 2011) believes...Addgene blog Read our cancer related blog posts Learn about our cancer collection pages Read more about...resources page  Find plasmids for your research Learn about Addgene's viral service ...
  25. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    Blog Post
    ...many of these studies report correlations without clearly testing whether a certain methylation state causes... recognized by distinct proteins and result in unclear transcriptional consequences (Sprujit 2013). Enzymatic... or throughout the genome – could be affected, leading to unpredicted gene expression changes (Sapozhnikov...simpler approach - dCas9 blocks DNMT1 methylation, leaving the target CpG unmethylated. Adapted from Sapozhnikov...Sapozhnikov and Szyf 2021.   Let me leave you with a few practical considerations: Design your gRNA...an unmethylated CpG to behave naturally in the nuclear environment. One good system to balance these needs...
  26. Popular Retroviral Vectors and Their Uses in Scientific Research

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    Blog Post
    ...and lentiviral envelope plasmids are listed here. Please note that both lentiviruses and gamma-retroviruses...express siRNAs of their choice in mammalian cells.  Learn more about Mammalian shRNA Tools for RNAi! Cre-Lox... gene knockdown. Vector provided by the Qi lab. Learn more about CRISPR plasmids for transcriptional inhibition...mammalian genome that can reveal how genetic alterations lead to changes in phenotype. The plasmid comes with ...We are constantly improving our CRISPR reagents. Please check www.genome-engineering.org for the most up-to-date...information. Check our CRISPR guide and blog to learn more about CRISPR and the most recent developments...
  27. BeHeard Award 2018: Diseases of Glycosylation, Arginine Mutagenesis, & Neural Development

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    Blog Post
    ...Addgene to accelerate their research. Read on to learn how these researchers plan to use plasmids from ...Sciences of NOVA University in Lisbon, Portugal. She leads the Glycoimmunology group based at the Research ...mild or exacerbated inflammatory response which leads to nearly 25% child mortality. Since glycans play...human disease change Arg to another amino acid. Clearly, the development of a pharmacological intervention...binds to and inhibits a potassium channel, causing release of acetylcholine. Given its unique molecular biology...BeHeard Award winners! Paula Videira is the team leader of the Glycoimmunology group at UCIBIO, FCT-UNL...
  28. Rabies and Neuronal Tracing

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    Blog Post
    ...We started with learning the head is connected to the neck. Shortly after, we learned about organs and...connectivity? One of the early lessons many of us learned in biology is that the body’s architecture and ...terminals (Lafon 2005). Therefore, once RABV is released from an infected cell, it is only taken up by ...genome). Nascent G protein-coated RABV is then released from the starter cell and transmits retrogradely...mediated by other viral proteins), but the newly released RABV cannot infect any subsequent cells due to...
  29. Twenty Years of Addgene Sharing: CRISPR

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    Blog Post
    ...CRISPR plasmids containing a nuclease into three functional groups: nucleases, modulators, and chimeric ...chimeric effectors. Nucleases generate a classic double-stranded break, while modulators regulate transcription...function, from 2014 to 2023. As you can see, nucleases, the original CRISPR tool, remain the most popular...educational resources help scientists navigate that learning curve. As of 2023, our CRISPR guide has been viewed...around the impact of science, but our data makes it clear that it’s also a story of community, cooperation...
  30. Drew Endy Introduces the Biobrick Public Agreement Plasmid Collection

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    Blog Post
    ...the future of the bioeconomy it's less clear, but the way I'd leave it is mostly to the imagination. The...collaboration this way: "Addgene is one of the leaders in distributing plasmids amongst the academic community...Addgene: And the BIL gates collection? Endy: The Boolean Integrase Logic (BIL) gates collection of parts...basic logical functions, which we know and love. Boolean is in reference to George Boole who in 1854 was...incredible hidden story here. The parts we are releasing simply plug into this existing economic activity...
Showing: 331 - 360 of 1015 results