By Mary Gearing
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In order to bind DNA, Cas9 and other CRISPR enzymes require a short PAM sequence adjacent to the targeted sequence at the locus of interest. SpCas9’s 3’ NGG PAM occurs frequently in GC-rich genomes, but a PAM is not always available near the locus you’d like to modify. To tackle ...
Guest blogger Todd Waldman, Professor at Georgetown University, contributed to this post. Adeno-associated viruses (AAVs) make fantastic gene delivery vehicles for episomal gene expression and are particularly useful for gene delivery to the nervous system. For many years they ...
Updated Apr 6, 2021. If you’re doing high throughput work, it’s likely that you come into the lab wishing there was a machine that could make your life a hundred times easier. We’ve certainly felt this way at Addgene so we’ve been putting some work into finding robots that’ll ...
By mutating one of two Cas9 nuclease domains, researchers created the CRISPR nickase. Nickases create a single-strand rather than a double-strand break, and when used with two adjacent gRNAs, can lower the probability of off-target editing. In this post, we’ll summarize how IDT ...
Today on the Addgene Podcast, we have another interview conducted by European Outreach Scientist Benoit Giquel. Ben recently spoke with Joachim Goεdhart, a professor at the University of Amsterdam. In addition to creating and sharing many great fluorescent protein tools, ...
This post was contributed by guest blogger Greg Lohman, a biochemistry researcher at New England Biolabs. When do you need a high fidelity ligase—and when is an alternative ligase a better choice? And what is ligase fidelity anyway? Let’s talk about it. DNA ligases are enzymes ...
Many of us take comfort in the fact that it’s often not quantity, but quality that really matters. Well, it turns out this isn’t the case for using AAV. When it comes to infecting cells, titer, the amount of virus used, really does matter. (*psst*, quality definitely also ...
