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  1. Making Career Development an Integral Part of the Science Training System

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    Blog Post
    ...Public Release Event scheduled for March 4th from 2:30-4:00 pm ET.  You can learn more about the report's... It's been an honor to work with such a group dedicated to providing the structure and know-how to integrate...example, pd|hub assembled a coalition of higher education organizations committed to advancing career and... inclusive career readiness training in this educational path before we lose more scientists who might...
  2. Let There Be LITE Plasmids

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    Blog Post
    ...First, the light-responsive molecules of cryptochrome 2 are the chromophores flavin-adenine dinucleotide and...effectors (TALEs) as anchors for genome engineering applications was still very new. Now, Konermann and her colleagues...prove the causal role of specific epigenetic modifications in the genome,” Zhang said in MIT’s press release...disease states. While LITE plasmids have clear application to anyone with an interest in neuroscience, their...
  3. 6 Tips for Analyzing and Troubleshooting Sanger Sequencing Results

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    Blog Post
    ...SnapGene Viewer (Mac/PC) FinchTV(Mac/PC) Chromas (PC) 2. You should see individual, sharp and evenly spaced...of interest. 5. Use a silica spin column for purification of the samples you send for DNA sequencing If...requires you to perform your own Big Dye PCR amplification reaction (as opposed to using the all inclusive...
  4. March for Science

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    Blog Post
    ...It may only be by advocating for science education and literacy that this changes.  2) Lumping all scientists...citizens enter into in order to protect their rights (2). Less formally, governments are the organizations...sister locations on April 22, 2017, scientists and non-scientists alike will march to advocate for science...marching for. I will be marching to advocate for science education and literacy as I believe people that...communities, microbial interactions, and science education.  Disclaimer: The views presented in this article...science’s place in education, government, and civilization in general (1). Science and politics? Science...process begins with a testable hypothesis - an educated guess about how some part of the world functions...
  5. Antibodies 101: Beyond Surface Labeling

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    Blog Post
    ...would label everything but the CD8+ T cells (Figure 2). Even better, we can use the same fluorophore for...gating on the negative population.     Figure 2: Dump gating labels all unwanted cell lineages with...labeling can be subdivided into two categories, depending on the location of the targeted markers. Some commercially...proteins, such as receptors, or post-translational modifications on those proteins, like glycosylation patterns...Depending on the research question and downstream application, one or several of those techniques can be used...your flow analysis. However, certain downstream applications, like an in vivo adoptive transfer of those ...labeling Oftentimes, a marker of interest is not located on the cell membrane but inside the cell. Due to...
  6. Multiple Plasmids at a Low Price: Kits from Addgene

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    Blog Post
    ...wheat germ, HeLa, and Leishmania (Gagoski, et al 2015[2]). The proteins encoded in this set range in size ...to generate Illumina sequencing libraries using a 2-step PCR-based protocol and are compatible with single-end...well as protease sites to facilitate protein purification. We hope this kit will allow you to quickly ...for a variety of synthetic biology or protein purification studies in E. coli. 800 and 1900 Series If you...polycistronic E. coli expression constructs. Some applications of plasmids from this kit include the production...and Charles E. Melançon III. "Detection and Quantification of Ribosome Inhibition by Aminoglycoside Antibiotics...designed the pCri system to simplify the protein purification process by making it easy for a researcher to...
  7. New Optogenetic Tools for Cytoskeleton and Membrane Control

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    Blog Post
    ...to a specific area at the plasma membrane (Figure 2). Just express the plasma membrane-localized iLID ...cells will be ready for the spotlight.    Figure 2: Opto-RhoGEFs to control Rho GTPase activity. A) Schematic...efficiency constructs are great for in vitro biocatalytic applications where toxicity doesn’t matter. Plus, for... binding of the plasma membrane. In previous publications, they described tools to control formation of.... Restricting the effect to a specific time or location can be critical when, say, the gene is essential...that trap the fusion protein away from its usual location, preventing it from carrying out its proper function...) and to introduce unnatural head groups for applications like fluorescent labeling via click chemistry...
  8. Microbes: Look, Listen, and Tell

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    Blog Post
    ... and give a similar optical quality (magnification of 140X and 2 micron resolution). I have worked many... science communication and outreach - if you'd like to learn more about Science communication check out...creative approaches to visualize bacteria in an educational setting. The Symposium on ‘Creative Approaches...from hand-drawn comics (Dr. Sanja Saftic) to educational gifs created by the Amoeba Sisters. Here’s one...Bacterial Genome Engineering Learn about Science Communication using Twitter  Resources on Addgene.org Check...
  9. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ...phosphoinositides (Varnai and Balla, 2008) (Figure 2). RNA production can be detected by using a MS2 coat... 296.5569 (2002): 913-916. PubMed PMID: 11988576. 2. Tsien, Roger Y. "The green fluorescent protein." ... proteins.Therefore, GFP is not suitable for applications that require anaerobic conditions. In experiments...an additional protein module that can report on location. This approach enables the study of proteins in...fusion with GFP allows for detection of genomic locations (Chen et al., 2013). GFP fluorescence overlaps...case when proteins undergo post-translational modification with fatty acyl chains. For instance, myristoylation...C-terminal consensus sequence (-CaaX). Both modifications are disrupted when GFP is fused to these sequences...
  10. Our Most Popular Blog Posts from 2019

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    Blog Post
    ...linker sequences, and fusion location, there are many choices to make. 2. Prime Editing: Adding Precision...resources can now be found in one place: the Educational Resources page. So let’s get to it. Here’s the...Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins by Cary Valley,...Resources at Addgene Browse the repository Find educational resources at Addgene Search for plasmids at Addgene...
  11. Top 10 Open Science Developments of 2013

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    Blog Post
    ...access to the results of federally-funded research. 2)      In June, the White House honored 13 “Champions...support for open access to peer-reviewed journal publications, although many don’t necessarily publish in ...
  12. CRISPR 101: Cytosine and Adenine Base Editors

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    Blog Post
    ... a template, copying the base edit. Figure 2: Cytidine deamination takes place on the free strand...SpCas9 base editors with editing windows as small as 1-2 nucleotides. To reduce off-target effects associated...formation. To further decrease indel formation 1.5-2 fold, the team fused bacteriophage protein Gam to ...editors catalyze purine-to-purine or pyrimidine-to-pyrimidine base changes. Solid red arrows indicate a conversion...conversion directly catalyzed by the base editor. Dotted red arrows indicate the change introduced to ... point modifications. CRISPR base editing persists through multiple cell divisions, indicating that this...target modification in primary T cells, making them a promising tool for cell therapy applications. Dual...
  13. Editor's Choice, September 2016

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    Blog Post
    ... of my favorite molecular biology tool, P1 phage. 2) The post describes an ingenious but simple technique...Plasmids at a Low Price: Kits from Addgene Savvy Advocates Needed to Navigate a Scientific Enterprise in ... a Lab and a Project That’s it for now. As I indicated in the opening paragraph, I’m currently on my ...
  14. Antibodies 101: The Basics of Western Blotting

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    Blog Post
    ... a western, proteins are: (1) separated by size, (2) transferred to a membrane, and  (3) detected using...expensive system-specific sandwiches.   Figure 2: The western blot dry apparatus includes a stack of...post-translational modifications, quantify protein levels relative to standards, detect the cellular location of proteins...pull-down assays.  Westerns are divided into two categories, native and denaturing. In a native western, ...matrix, the blotting membrane, the gel, a copper cathode/iblot gel matrix, and filter paper. Pretty much...search, first pay attention to the validated applications listed on the vendor’s website and choose an...western and vice versa.  In addition to validated applications, pay close attention to the controls listed ...
  15. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

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    Blog Post
    ...Almo, Institute for Protein Innovation  1:18:45 - 2:01:18 (end) - Panel Alex Tucker (Ginkgo Bioworks)...their curation of citable, linkable figures. Cause #2: Hidden “negative” data We all want to be able to ...someone has replicated it precisely. You can find a great discussion of different types of replication in Nosek...perfect story for a “high impact” publication can lead to the publication of rare flukes showing positive...that fall into this category include performing experiments with too few replicates leading to suspect ...these positive results will be published. The publication record will then show that the tested hypothesis...reproducible publishing practices. One example is the publication of peer reviews so we can see how and why papers...
  16. Antibodies 101: Validation

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    Blog Post
    ...another. You’ll need to validate that points 1 and 2 hold true under your specific experimental conditions...when (1) other strategies may not be feasible and (2) large-scale proteomic and transcriptomic datasets...intended application - Remember, just because your antibody performs as expected in one application does ...strategies for antibody validation in different applications. Here, I want to highlight the general suggestions...intentionally generalizable and not specific to certain applications or antibody targets. That said, not every strategy...will be suitable for every antibody or every application. The goal is to show that your antibody has been...strategy to use will depend on your intended application and available resources.     Figure 1...
  17. 6 Steps to Submitting a Resume That Gets Seen

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    Blog Post
    ...having trouble preparing your most excellent resume. 2) Follow job boards and check them regularly Use your...demonstrate in your application). Beware the myths of scientist “overqualification” but it may not be ...Utilizing existing relationships as part of the job application process can dramatically increase the chances... of a resume can be crucial for a successful application. It takes time to prepare an excellent resume... here for more on timely submission of a job application. 3) Read job descriptions carefully Be open minded...bold. You don’t have to have all of the listed qualifications to apply for a position.  A job description...target someone in a specific department and/or location. The more people you meet the better chance you...
  18. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

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    Blog Post
    ...bringing in environmental contaminants.  Figure 2: An Addgenie works in the tissue culture hood while...doi.org/10.1290/1071-2690(2002)038<0086:caeomi>2.0.co;2 Uphoff CC, Drexler HG (2011) Detecting Mycoplasma ... difficult to eradicate. You can suppress the growth of mycoplasma but cannot eradicate it completely....Contamination! Tissue culture media often have indicators included in the media that turns yellow from ...important to prevent contamination rather than eradicating it later. Don’t be scared when mycoplasma infects...the first person to face this kind of problem. Educate others when you can and help them understand the...Cc, Drexler Hg (2002) Comparative Antibiotic Eradication of Mycoplasma Infections from Continuous Cell...
  19. Finding Your Science Policy Path

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    Blog Post
    ...before and during your application process so you can learn more! Figure 2: The many ways to prepare...teaching and mentoring others (see more in Figure 2). Starting early demonstrates not only your interest... policy implementation, program management, communications, diplomacy and international relations, advocacy...they train and bring researchers to Congress to advocate for increased science funding and other issues...sets for a science policy career is science communication so an outsized way to prepare is to do lots ...Initiative.    Get practical experience in science communication by writing for the Journal of Science Policy...
  20. Three Tips to Organize Your Lab Notebooks in the New Year

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    Blog Post
    ...that you can easily spot the colors and text. Tip 2: Use electronic to-do lists to access your tasks on...moving your paper spreadsheets for reagent storage locations, such as the list used to organize your cryo freezer...
Showing: 401 - 420 of 653 results