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Showing: 621 - 640 of 1028 results
  1. Antibodies 101: Epitope Tags

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    Blog Post
    ... are focusing on tagging for detection purposes (stay tuned for our affinity purification tag blog!). ...benefits – as discussed above – but there are a few instances when they should be used with caution or not at...Protein folding issues, steric hindrances, and destabilization can be brought about by the tag so it’s important...aggregation of your protein of interest!   Ready to start epitope tagging?   References and Resources References...
  2. Intro to Our Summer SciComm Series!

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    Blog Post
    ...field of science you are communicating from. For instance, a plumber, a physicist, an ambassador to Spain... an email without a recipient, so why would you start a communications project without an audience?  An... racial/ethnic background, patient or caregiver status, geographic location, sense of humor, media consumed...audience allows you to create common ground and understanding that you can use to get your message across....
  3. Addgene Begins Distribution of Recombinant Antibodies

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    Blog Post
    ...Bandrowski et al., 2016). It’s also been well established that recombinant antibodies are excellent for... to contribute to the catalog. The Catalog Will Start With Neuroscience Antibodies and Grow From There...Email [email protected] to learn more or get started.  If you have suggestions about how to make the...Bradbury A, Plückthun A (2015) Reproducibility: Standardize antibodies used in research. Nature 518:27–29...
  4. Tetbow: Bright Multicolor Labeling for Neuronal Tracing

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    Blog Post
    ...expression of XFPs. Any longer and the cells may start to show morphological abnormalities due to the excessive...Clearing large tissues - Fluorescent proteins are very stable in SeeDB2. However, SeeDB2 is not powerful enough...neuronal circuit tracing.     Marcus Leiwe is an assistant professor at Kyushu University. He has a particular...17972876. Kohl, Johannes, et al. "Ultrafast tissue staining with chemical tags." Proceedings of the National...
  5. Why Add Sucrose? Improved Yields for Adeno-associated Virus Preparation

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    Blog Post
    ...detection assays, in vitro transduction, and silver stain approaches we show that there is no difference in...research community.    So, why are we so excited? For starters, we believe that this approach can be adapted ... of retroviral vectors: Enhancement in vector stability." Biotechnology and bioengineering 94.2 (2006)...PubMed PMID: 16528756. 2. Oh, Steve KW, et al. "Substantial overproduction of antibodies by applying osmotic...
  6. Viral Genome Sequencing - A One Stop Shop for AAV Identity and Serotype Confirmation

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    Blog Post
    ...several years ago we partnered with Seqwell to establish a next-generation sequencing (NGS) QC platform...including only titration of AAV particles and a protein stain to assess purity. For labs that produce a small ...samples, serotypes, or both. Unfortunately, the standard AAV QC regimen does not address this.  Previous...analysis approach can be easily incorporated into standard QC regimens and will provide scientists with the...
  7. Plasmids 101: TOPO Cloning

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    Blog Post
    ...insert. Since the standard ligation reaction is fairly quick, make sure you stay organized and prepare...TOPO cloning: 1. Create Your PCR Product: Design standard primers (no need to add unique restriction sites...Reaction into Competent Cells: You can use your standard lab protocol for this; however, you should reduce...
  8. Plasmid Cloning by PCR

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    Blog Post
    ...we are cloning an ORF, we want to clone from the start codon (ATG) to the stop codon (TGA, in this example...give specificity and to also be compatible with a standard PCR reaction (see PCR Video). Therefore, our Forward...reverse complement to get PCR amplification. We can start similarly, taking the final 18 bases of the ORF,...restriction cloning post. However, even more than with standard restriction cloning, it is essential that you ...
  9. Another Pathway into Cells: iTOP

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    Blog Post
    ...usage has been limited by technical problems. For instance, it’s much more difficult to introduce a gene ...primary (hESCs) and cultured cells showed up to 70% resistance to diphtheria toxin, indicating a 70% frequency...Figure adapted from D’Astolfo et al. In certain instances, the potential benefits of nonviral transduction...protein purification (once a protocol has been established) may be less laborious than viral purification...
  10. Mentoring for Scientists: I Have a Mentor, What Now?

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    Blog Post
    ...a great start to a mentoring relationship, but if you don’t take this past the chatting stage you will...list available from this post. Use an activity to start a discussion. The Forced Choice Analysis is a fun...clarify and discuss values. The activity is just the start – it is the discussion after that will lead to learning...
  11. Revamp Your Lab Meetings With Creative Virtual Collaboration

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    Blog Post
    ...at odd times, new strategies can make socially distanced work more creative. An example could be making...signal the approach of a brain break, where everyone stands up, disappears from the video, and prepares a coffee...brainstorm on data in smaller groups, where for instance the presence of the PI in the main room inhibits...these weird times of shift working and social distancing. The take home message is the approaches/tools...
  12. Networking Follow-up: I Met a Person. Now What?

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    Blog Post
    ...give rise to a starfish shape. You can ask me about the different arms of this starfish sometime, but... plug-in called Maps.  Figure 1: See a starfish? This is actually a map of Joanne Kamen's LinkedIn... it is completely impossible for me or anyone to stay in touch with all of their connections on a regular...
  13. How Dry Ice Affects Viral Vector Sample pH & How to Avoid It

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    Blog Post
    ... (Fig. 1). However, once thawed, there was a substantial reduction (from 7.4 to 5.0) in the pH of samples...antibodies, because of effects of pH on protein stability (Murphy et al., 2013). However, the pH changes...infectivity of the virus. However, there was a substantial reduction in infectivity after 3 weeks of exposure...der Geer P, Manning MC, Fitchmun MI. Protein instability following transport or storage on dry ice. Nat...
  14. FPbase: A new community-editable fluorescent protein database

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    Blog Post
    ...range of characteristics (color, brightness, photostability, maturation, oligomerization), many of which...choosing a protein, we often direct them there as a starting point.  However, there is a great deal more information...database relating to that specific protein (for instance: EGFP).  Users can “favorite” certain proteins...of FPbase FPbase is still very much in the early stages of development, and there is plenty of room for...
  15. Improving Transduction Efficiency with Exosome AAVs

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    Blog Post
    ...Standard AAV vectors are generated with a producer cell line like the widely used 293T. During vector...glioblastoma). They also found that exo-AAVs were more resistant to neutralizing anti-AAV antibodies. This is particularly...thought to enhance the production of exosomes or stabilize their structure or their interaction with AAVs...areas that are difficult to reach, and are more resistant to inactivation through anti-AAV antibodies. ...
  16. Unique and persistent IDs for improved reproducibility: Addgene now supports RRIDs and compact identifiers for all plasmids

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    Blog Post
    ...reagent is crucial for reproducibility because mistakes in this can lead to wasted time or retractions... the Addgene catalog. These IDs allow you to unmistakably identify a plasmid available through Addgene...all Addgene plasmids! In an effort to support standardized persistent identification of research reagents...Resource Identifiers (CURIEs) combined with well-established prefix resolution services such as Identifiers.org...
  17. What Good Citizenship Can Do for Reproducibility in Science

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    Blog Post
    ...different water filtration system, environmental stability in an incubator), but there’s a lot you can do...other researchers to help them troubleshoot and understand. All of this communication and sharing fits together...seriously. That’s why at Cell Press we developed STAR Methods to improve the structure and transparency... of checklists and guidelines to help authors understand what they are expected to do. All of that helps...
  18. Pushing the Limits of DNA Assembly

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    Blog Post
    ...is fine for its goal of creating a choice of standardized constructs and tools for the rational and simple...Golden Gate Assembly also allows the creation of standardized DNA constructs, but its use of Type IIS restriction...polymerase used in the amplification. This tool allows instant updates as fragments are added, deleted, or reordered... in biofuel generation, green chemistry and understanding the minimal genome. Many of these techniques...
  19. Optimizing Donor DNA for Enhanced CRISPR Genome Editing

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    Blog Post
    ...efficiency of these editing reactions is low. Understanding the biological cause of this repair bias is ... reinforce a key scientific principle: that understanding a biological process in detail often suggests... efficiency of sequence replacement by HDR. Understanding Cas9 biophysics enhances HDR We first measured...released strand, 127bp in length, With 36bp on the PAM-distal side of the break and 91bp on the PAM-proximal ...
Showing: 621 - 640 of 1028 results