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Showing: 621 - 640 of 962 results
  1. Plasmids 101: The Wide World of Natural Plasmids

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    Blog Post
    ...Figure 1: Common functions of natural plasmids. Created with BioRender.com. Resistance (R) plasmids...resistance genes to help cells survive their own secretions. Pro tip! Historically, colicin-producing plasmids...years, and new classifications are still being created as whole-genome sequencing becomes more relevant...
  2. 6 Tips for Grant Writing

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    Blog Post
    ...tips to improve your grant writing and hopefully increase your success rate. 1. Submit your grant early...are unlikely to get past the initial round of screening. I STRONGLY recommend that you ask a PI or mentor...taxes or charitable donations) so there is an increasing realization that, if we want people to keep contributing...
  3. Plasmids 101: Terminators and PolyA signals

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    Blog Post
    ...Mammalian expression plasmids are primarily used to create mRNA and the commonly used mammalian terminators...below) releases the mRNA from the polymerase and creates a free 3' end which is now available for polyadenylation...Internal Polyadenylation Signal Substantially Increases Expression Levels of Lentivirus-Delivered Transgenes...
  4. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

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    Blog Post
    ...activation or repression, transgenic mouse line creation, and in vivo gene editing of mice, with the potential...cationic polymer. Polybrene has long been used to increase retroviral transduction efficiency by neutralizing...Nanoblades CRISPR has also been extensively used to create transgenic mice by microinjecting zygotes with ...
  5. Early Career Researcher Toolbox: Finding Relevant Papers

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    Blog Post
    ...growth or decline of interest in a field over time. Creating an alert for a search term helps automate your...is not a traditional search engine. Instead, you create your own research feed by entering keywords, concepts...new papers that contain these terms. You can also create intersects in your feed which means only papers...
  6. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

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    Blog Post
    ...using the plexWell technology to easily and quickly create Illumina sequencing libraries. From start to finish...ask the depositing laboratory to review the discrepancies. If the depositing laboratory confirms that ...-Cas9 knockout and transcriptional activation screening. Nat Protoc 12:828–863 . https://doi.org/10.1038...
  7. Experimenting in an Open Source lab: from CRISPR to Cats

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    Blog Post
    ...Victoria, CA Over the decades science has become increasingly restricted to academic and industrial labs, ...research. This interest manifested itself in the creation of Hackerspaces and Makerspaces back in 2007, ... make accounts with  Addgene. We now have the incredible CRISPR/cas9 tools at our disposal to to modify...
  8. AAV Vector Quality Control: Going the Extra Mile with NGS

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    Blog Post
    ...parallel because the risk of accidental errors increases. In addition to human error, fragments of DNA ...to the reference sequence of the plasmid used to create the viral prep. In a clean viral prep, like AAV...control process! The images in this blog post were created using Snapgene and Geneious software. References...
  9. Plasmids 101: Protein Expression

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    Blog Post
    ...disulfide bridges, glycosylation and acetylation to create functional, stable proteins. Protein expression...scientists have taken advantage of the natural secretion of biochemicals and proteins through plant roots... Tagging recombinant proteins with a naturally secreted plant peptide allows for easier access and purification...
  10. Addgene's Cancer Collection Pages Connect the Research Community

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    Blog Post
    ...as 30% of all cancers, especially those of the pancreas and colon. Despite the prevalence of Ras mutations...he or she can use to study it (as seen in the screenshot below). Currently, the page includes interactive... Tackling Cancers' Drug Resistance with a New Screening Kit Learn How the Clon Tracer Library Can Be Used...
  11. Tips for Using BLAST to Verify Plasmids

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    Blog Post
    .... At Addgene, we use blastn to identify any discrepancies in Sanger sequences, such as mismatches, deletions...determine the potential effect of any nucleotide discrepancies. The blastp and blastx programs are optimized...plasmids instead! All BLAST images are modified screen shots from the NCBI BLAST website. Additional Resources...
  12. Plasmids 101: Secondary Nanobody Toolbox

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    Blog Post
    ...a double-edged sword. An antibody’s large size creates more distance between the target antigen and the...also allows for better tissue penetration and decreases the distance between a fluorescent tag and the...HCab antibodies from its serum, and meticulously screening, optimizing, and characterizing several anti-mouse...
  13. Better Dyeing Through Chemistry & Small Molecule Fluorophores

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    Blog Post
    ...overexpression of protein fusions to gene-edited cells can decrease the number of fluorophores, compromising the photon...improved fluorophores are making chemical dyes increasingly attractive and accessible to cell biologists—and...fluorogenicity, photoactivation etc.—can further increase the photon budget and allow us to push further...
  14. DNA Purification Without a Kit

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    Blog Post
    ...expense and requirement for lab equipment. Plus they create plastic waste. Kits can also have the annoying ...and filters can be stacked together in series to increase binding capacity. Figure 1: Purify DNA using...Additionally, while commercial plasmid prep kits come in discreet sizes (mini, midi, maxi, giga) which requires ...
  15. How to Write a Scientific Review Article

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    Blog Post
    ...researchers in the field. Finally, you can sound credible and cool when you casually mention “Haery et al... al., showed that MYC expression was increased…” when discussing the review topic with your peers. Start...will also paraphrase what I have heard many other creative people say about writing: you don’t know what ...
  16. Plasmids 101: Shuttle Vectors

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    Blog Post
    ...that can function in more than one host species. Created with BioRender.com. How are shuttle vectors...viral oris to drive amplification, which helps increase cellular uptake, but this approach requires compatible...eukaryotes. Conclusion I still think it’s pretty incredible that my cells “speak” the same molecular language...
  17. Overcoming the AAV Size Limitation for CRISPR Delivery

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    Blog Post
    ...and multiple gRNAs into separate AAV vectors, increasing overall packaging capacity but necessitating ...efficiency of AAV-SaCas9 in vivo, the Zhang lab created an all-in-one SaCas9 and sgRNA construct using ...histologically normal and liver injury markers were not increased compared to a control AAV-GFP. Not only did the...
  18. Plasmids 101: Stringent Regulation of Replication

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    Blog Post
    ...proteins cooperatively can separate the DNA strands. Created with BioRender.com. Once DnaA breaks the local...helicases to continue unwinding the strands. This creates two replication forks that move in opposite directions...pseudoknot from folding, blocking replication. Created with BioRender.com. Plasmids under stringent...
Showing: 621 - 640 of 962 results