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...inducer. Since induction via estradiol and progesterone do not affect each other, these systems can be used ...random variation, or noise, in reporter expression. To do so, one places reporter expression under the control... et al. Cell. 2017. PubMed PMID: 29153837. Endosomal pH sensors for STED nanoscopy Article contributed...contributed by Eric J. Perkins Listen to Endosomal pH Sensors podcast segment The first Addgene plasmid deposit... biosensors for super-resolution microscopy.” Endosomes are historically difficult to study in living ...met some of the criteria necessary for studying endosomes, the Hell lab designed their super-resolution ... meet all of them. These probes had to target endosomes, be exceptionally bright (which is necessary for...

... to top Content last reviewed on 01 October 2025. Do you have suggestions for other plasmids that should...

...previously identified Cas13a-c orthologs, but they do include HEPN nuclease domains characteristic of the...here Find the Konermann et al. Plasmids here How do Cas13d enzymes compare to other Cas13s? Like other... and is thus HEPN-independent. These enzymes also do not require a protospacer flanking sequence, so you...

...we understand what genes do! Viruses have several options to allow you to do exactly that: shRNAs are...clinical promise moving forward. What viruses can do for you Whether you are interested in basic science...long-lasting immune response even after a single dose. Vaccine development strategies. Image courtesy...

...inducible? How long do you need control? Will temporary control (a few days) be enough, or do you want a permanent...101: Repressible Promoters CRISPR 101: Which Cas9 Do I Choose for my Experiment Additional resources ...

...Golden Gate etc.), and try to find the simplest way to do it (i.e. avoid assembling too many fragments at once...by methylation like XbaI, ClaI, etc. If you are doing multiple digestion be sure that the buffers and ...plasmid, and analyze it using the following steps: Do a single or double digest to be sure that the plasmid...

...need to sort through them to find the desired clone. Do your selection, then screen Why add a screen to your...plasmids that contain the gRNA (white) from those that do not (blue). Let’s take a look at a few screening ... containing plasmids with inserts from those that do not is by using a restriction digest. The key is ...

...phenotype in the surviving population. Selections do require there to be a culture condition that can ...sound like a great shortcut, right? Who would ever do a screen when a selection can get you to the answer...culture condition which eliminates manipulations that do not affect the function of interest. An example where...culture cells in the drug of interest at a lethal dose for non-manipulated cells and then assay cells which...

... synthetic modifications, specifically ones which do not contain a 5’ triphosphate in the gRNA, reduce...many suitable dyes to choose from and you can opt to do-it-yourself with a kit or purchase it commercially...but you can still choose what dye to use  What to do once you’ve chosen a gRNA and modification(s) Congratulations...

...groups and individuals with similar ideas to actually do something about it. Building a diverse team with ...There are many brilliant minds out there, but how do you get them to connect? Through networking of course...solving a community’s issue without involving them can do more harm than good. Check out this webinar for more...

...” of mentors as one key to their success. But how do you find these elusive teachers, supporters and advisors...be read or watched during the meeting.  Scientists do better with process, so don’t just get together and...blog in this series will have more ideas on what to do once you are in a mentoring relationship.  Celebrate...

...their current readership. Encouraging students to do science anywhere.  Chapter 4 - JEI's mission and ...

...maybe smaller Cas systems could exist in nature. To do this, they mined a database of microbial genome and...indiscriminately cleave ssDNA in trans like Cas13 and Cas12 do for RNA and dsDNA, respectively. However the authors...

...Unfortunately, many science graduate programs are still doing an inadequate job of supporting science trainee ...into diverse, successful careers.  We’re not even doing a very good job of providing skills training for...

...opportunities to fall in your lap. Sometimes, in order to do the thing you love, you have to create opportunities...honest), I would tell them to follow your passion. Do what you love. Don't worry about the rest.”- Jason...

...Addgene, so we need to be cost and time efficient. We do this by making our own competent cells and using ...each new batch of competent cells, don’t forget to do a negative control (plate your cells without adding...

...double-stranded DNA (dsDNA) genome. Non-enveloped viruses do not have a lipid bilayer surrounding the viral particle...cells for rAdV vector production, as HEK293 cells do not contain E4. Download the Bert Vogelstein’s lab...infection, wild-type adenovirus as well as rAdV vectors do not integrate into the host genome. Instead, they...cell line. Recombinant adenoviral vectors typically do not integrate in the host genome and instead are ...for recombinant adenoviral vector production that do not contain GFP. Recombinant adenoviral vector (rAdV...

... human genome (Munoz-Lopez et al., 2010).  So why do transposons matter? The outcome really depends on...how retroviruses, like HIV, replicate. Class I TEs do not encode a transposase enzyme.  Class I TEs are...TEs are also known as DNA transposons, since they do not use an RNA intermediary when they move. Most ...

...use, of course, depends on what you are trying to do – there’s no “best” tool among them. While this seems...gRNA depends an awful lot on what you are trying to do: gene knockout, a specific base edit, or modulation...importance in design – an optimized sequence will do little if it is in the wrong place, but because the...

...Resource Guide Content last reviewed: 23 October 2025 Do you have suggestions for other plasmids that should...