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  1. 6 Tips for Grant Writing

    Type
    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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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 ...
  10. 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...
  11. Transferable Skills Guide: Career Planning Resources

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    Blog Post
    ...just might personally hand your credentials to HR, greatly increasing your chances of getting a phone ...can use to better prepare for your career, and increase your chances of landing that next coveted job!...
  12. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

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    Blog Post
    ...made use of mazF as a counterselectable marker to create unmarked genetic modifications in the yeast Pichia...counter selection in one plasmid, they were able to create an efficient cloning tool. The plasmid pKSCTMF ...Morin and James Kaper used the hok/sok system to create strains that can stably express antigens in sufficient...
  13. 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 ...
  14. Mesothelioma - Causes, Symptoms, and Treatment

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    Blog Post
    ...prognoses. Survival rates for mesothelioma are creeping upwards, and while most people still die within...world. New mesothelioma cases could be greatly decreased through a ban on asbestos. Nonprofits like the...Resistance Plasmid Grant to Aid Cervical Cancer Screening in Ghana Additional Resources on Addgene.org ...
  15. 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...
  16. Plasmids 101: Plasmid Incompatibility

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    Blog Post
    ...1998). As the copy number of the plasmid increases, increased amounts of these antisense RNAs inhibit ...inhibit its own transcription. As copy number increases, RepA transcription is repressed and replication...
  17. An Inside Look into Addgene's Dev Team

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    Blog Post
    ...each project. This creates accountability on the part of each developer and creates trust amongst the ... Addgene grows and evolves, we will be here to increase all of our teams’ efficiency and productivity....
  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...
  19. CRISPR-based Genome Editing Systems For Editing in E. coli

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    Blog Post
    ...expression transposases leading to increased integration frequency. (C) Increasing rounds of transfer on transposition-inducing...chromosomal integration of cargo without using screening markers. Capability to construct a strain library...
  20. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    ...glutathione reductase to faciliate proper folding; may increase multimer formation Δ(ara-leu)7697 ΔlacX74 ΔphoA...salts may be preferable if the protein product is secreted to the medium or if slow expression is required...required due to solubility concerns. Insoluble and Secreted Proteins: The most common purification protocols...
Showing: 621 - 640 of 950 results