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  1. Viral Vectors 101: Optogenetic Tools

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    Blog Post
    ...consider when choosing one.     Figure 1: Example of an experimental optogenetic setup. A light source...awry in a disease state.      Figure 4: Example of an intracellular signaling pathway activated...succession and maintain fidelity with the stimulus. For example, if you want to stimulate at a fast frequency without...stimulation. GPCR signaling GPCR signaling is a complicated process involving many downstream signaling mechanisms... pathways. Additionally, as GPCR signaling is amplified in successive steps along a pathway, there can...
  2. Transferable Skills Guide: Teamwork

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    Blog Post
    ...the planet, in which case whoa! Mission accomplished! One example of a mission-based team in academia would... have a specific purpose and finite goals. For example, when it came time to update how we make and distribute...transfer expert who understands the somewhat complicated Material Transfer Agreement process that kits...function. Project team A Project Team is assembled to complete a series of tasks with precisely defined goals...
  3. Lambda Red: A Homologous Recombination-based Technique for Genetic Engineering

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    Blog Post
    ...dsDNA was short enough, a ssDNA whose entire complementary strand was degraded. Beta: Beta protects the...created by Exo and promotes its annealing to a complementary ssDNA target in the cell.  Only Beta expression... inserts can be made by PCR using primers that amplify the DNA sequence of interest and flank it with ...region of interest and design an oligo that is complementary to the lagging strand. In practice, it’s easier...system once recombinant clones are generated.  A simple way to do this is to express lambda red genes from...
  4. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

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    Blog Post
    ...). Mycoplasmas are considered to be one of the simplest and smallest bacteria. The absence of a rigid ... of powdered media. Filtration does not ensure complete sterilization as mycoplasma can even escape 0.2... growth of mycoplasma but cannot eradicate it completely. When mycoplasmas are seen in the culture, it... changed for at least two or three days before sampling (Uphoff and Drexler, 2011). Culturing on agar... of mycoplasma. These methods cannot guarantee complete removal of mycoplasma but, can get rid of most...
  5. The Addgene Antibody Data Hub

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    Blog Post
    ...gene/target, name, application, pass/fail rating, sample species, antibody species, or whether the results... by Addgene's curation team for accuracy and completeness. The information is then formatted and published...application. The submission process is easy, with simple, descriptive fields, drop-down boxes when appropriate...can work through it at your own pace. To submit, simply click "Contribute Data."    Figure 6: Contributing...
  6. Designer PUF Proteins for Any RNA Target

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    Blog Post
    ...a world of possibilities in the engineering of complex gene networks. A comparable system for targeting... of RNA is highly desirable for extending the complexity of genetic circuits, allowing for tighter spatio-temporal... of interest. The new tool was developed and implemented by applying the Golden Gate cloning method to...in addition to their use in basic biology, for example, by targeting pathways underlying cancer or other...
  7. Cancer and the Immune System: Deciphering the Relationship

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    Blog Post
    ...Binghamton University Cancer is one of the greatest examples of survival of the fittest. Cancer cells find ...immune response to the development of tumors is a complicated and dynamic phenomenon that is interestingly ... also known to precede cancer development, for example, inflammatory bowel disease is associated with ...the expression of the major histocompatibility complex (MHC) class I proteins on their surfaces to avoid...and suppression of tumor-aiding cytokines, for example, will more broadly activate the immune response...
  8. Bringing Sustainable Practices to the Lab: Innovations

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    Blog Post
    ...cytometers. These fluidic machines handle biological samples and are cleaned between each use. You wouldn’t ...high-throughput and efficient way? Grenova, for example, offers automated, benchtop, high throughput washing...lab culture, but with the right incentives (for example, by grant agencies), we can shift toward a more...more sustainable one. The math on this is pretty simple: wash your tips once and you cut your tips cost ...
  9. Cre-ating New Methods for Site-specific Recombination in Drosophila

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    Blog Post
    ...recombination by KD, B2 and B3 resulted in complete or near-complete excision of the stop sequence. In contrast...toxicity, but with the caveat of partial rather than complete recombination. If you’re looking to use site-specific...this system. Gerald Rubin’s lab sought to make complex genome modifications in Drosophila using multiple...
  10. Celebrating Outstanding CRISPR/Cas9 Achievements at the Dr. Paul Janssen Award Dinner

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    Blog Post
    ...Scientists are excited by somewhat unusual things. For example, I am not that interested in meeting movie stars...this over 30 minutes, which was fun to watch. A simpler 1 protein - 1 RNA system Drs. Dounda and Charpentier...into one RNA to direct cleavage the result was a simpler 1 protein - 1 RNA system.  Dr. Charpentier advocated...breakthrough. In fact, the panelists agreed that, for example, the technology is already available today to cure...
  11. An Addgene Summer Internship

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    Blog Post
    ... had to get used to the workspaces, as well as complete the lab safety and cybersecurity training before...project is a major project given to each intern to complete and present on.    Figure 1: Addgene's...obtain eight clones. We ran digested and undigested samples of the clones on an electrophoresis gel in order...Toj-Villagran is a rising senior in high school who just completed their summer internship at Addgene. They plan ...
  12. Year of the Camelid: Antibody Style

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    Blog Post
    ...Suitability for in vivo experiments, due to their simple structure    sdAbs in research These advantages...becoming valuable tools for diverse applications. For example, RANbodies can be used as an alternative to conventional...manipulate cellular functions, like in this early example we highlighted back in 2015, where sdAbs were used...around using sdAbs in diagnostic applications. For example, fluorescently and radioactively labeled sdAbs ...
  13. Early Career Researcher Toolbox: Free Online Molecular Biology Tools

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    Blog Post
    ...give you the reverse sequence, complement sequence, or reverse and complement sequence.  Filter DNA tool:... tools help with that.  DNA sequence reverse complement tool: Enter a DNA sequence and the program will...DAD): This tool designs overhang sets for high complexity Golden Gate Reactions Cloning ligation reaction...
  14. An Addgene Co-op: The Intersection of Fun, Friendship, and Work

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    Blog Post
    ...student at Northeastern University, I am required to complete a six month work experience called a co-op to ...Thankfully, my managers set aside time for me to complete an online social media certification on social... data, and I was given a fantastic spreadsheet template to build out a report on. I was able to understand...changes to our social media strategy. We ended up implementing some of these changes and seeing early results...
  15. Plasmids 101: Gene, enhancer, and promoter trapping

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    Blog Post
    ...genetic screens employ various on/off switches to measure the function of a gene. For example, they eliminate...modifying the gene of interest in any way. For example, if green fluorescent protein (GFP) was the reporter...monitors due to transcriptional fusion.   Examples of promoter, enhancer, and gene traps at a genomic...
  16. Management for Scientists: What Makes a Good Manager Anyway?

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    Blog Post
    ...bosses and employers. Availability of superiors for consultation, advice and brainstorming. Employees must ...Intelligence or to hone delegation skills, for example. So aside from a focus on removing obstacles, what...organizational decision-making. It is imperative that employees are thanked for their work by the words and actions...
  17. Starter Guide to induced Pluripotent Stem Cells (iPSCs) Part 2:  Reprogramming and Transdifferentiation

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    Blog Post
    ...natural transdifferentiation is rare in mammals, an example is observed in the pancreas when excess β-cell ...1987, Davis et al. reported one of the earliest examples of transdifferentiation in vitro where treatment...vitro Both in vitro and in vivo Epigenetic marks Complete removal to convert to iPSCs and re-establishment...in science communication and publishing after completing her postdoctoral training from Massachusetts ...human induced pluripotent stem cells from urine samples. Nat Protoc, 2012. 7(12): p. 2080-9. PubMed PMID...
  18. CRISPR 101: Multiplex Expression of gRNAs

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    Blog Post
    ...gRNA are not to scale.   Let’s start with the simplest multiplexing situation: you only need to express... and two U6 promoters. To use this plasmid, you simply order oligonucleotides for your chosen gRNA target...number of gRNAs you wish to clone, from 2-7. For example, if you’re expressing 4 gRNAs, you’d use pX330A...using BsaI, and promoter-gRNA fragments are PCR amplified for cloning into one of three Zeamays codon-optimized...especially useful for combinatorial analyses. For example, if you were to develop an array using 3 distinct...
  19. The Strength of Story Telling

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    Blog Post
    ...research struggles in papers. They recount accomplishments in talks and interviews. They even tell short...Story Telling at work Don’t believe me? Here’s an example of storytelling to answer an informational interview...it worked out for all of us.” This is a classic example of the STAR (Situation, Task, Action, Result) interview...than I’m able to produce. But it’s also a great example of storytelling – you get context, time, cause,...
  20. Science Careers: Unruly Interests Feed Many Paths

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    Blog Post
    ...career Developmental biology caught me early on: a simple egg is packed with information. I am fascinated...individual diversity to get from gamete to a visibly complex - and unique - adult. My initial research directions...communication professionals who are thinking about, for example, how to use new technologies to reach the right...the world of scholarly publishing. And see for example the Eighth International Congress on Peer Review...
Showing: 461 - 480 of 929 results