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We narrowed to 693 results for: ust

Showing: 181 - 200 of 693 results

  1. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    Published
    Aug. 4, 2016, 2:30 p.m.
    ... al 2016 in a letter to Protein & Cell. Update (August 3rd, 2017) THE ORIGINAL NgAgo ARTICLE DISCUSSED...complex with an ssDNA guide. Therefore, researchers must co-transfect cells with 5’-P-ssDNA guides and an...not be present in AT-rich regions of the genome or just after a stop codon (as required for C-terminus epitope...Take Pooran's NgAgo Survey Survey results As of August 1, 2016, a total of 165 researchers responded to...

  2. PITChing MMEJ as an Alternative Route for Gene Editing

    Type
    Blog Post
    Published
    Feb. 23, 2016, 3:30 p.m.
    ...knock-in of a GFP-Puro cassette into a given locus, just upstream of a stop codon. Briefly, the PITCh vector...respectively. These results indicate that PITCh is a robust method for genomic insertion. PITCh can also be...of interest, since the GFP-Puro will be inserted just upstream of a stop codon. One potential concern ...modifications. A recent publication by Zhang et al. shows just that - using MMEJ to insert FLAG tags into the genome...

  3. Tips for Using BLAST to Verify Plasmids

    Type
    Blog Post
    Published
    May 29, 2014, 1:29 p.m.
    ...contains the largest number of protein sequences. Just below the BLAST button, you may have noticed the... BLAST options and for our suggested blastx customization. Similar to nucleotide sequences, proteins often...default, meaning that you do not have to remember to adjust any blastp algorithm parameters. We use the default...sequence alignments that BLAST is unable to handle, Clustal is our frequent choice for pairwise or multiple...

  4. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    Published
    Oct. 18, 2018, 12:37 p.m.
    ...into the same cell. For simple cloning requiring just one or two recombination events, homemade competent...minimize false positive colonies. We routinely screen just two colonies for simple cloning procedures. Use ...buffer, polymerase and dNTPs, can be stored frozen: just defrost and add your primers and template. Amplifying... PCR mix. When PCR is not possible Some plasmids just won’t amplify! Examples of this are the GC-rich ...

  5. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...potential complications that must be considered when using this method:     Cells must be amenable to transfection...encodes Cas9 and contains a site for inserting a custom gRNA.  While this methodology has proven to be ...or viral transduction     Appropriate promoters must be chosen for both Cas9 and gRNA expression       ...

  6. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    .... Nanobodies are like tiny antibodies which work just as well, if not better, than antibodies for all .... For multicolor staining, careful consideration must be used when selecting which antibodies to use together...displacement Require separate incubation of 1° and 2° Must use different species and/or different IgG subclasses...nanobodies are identified in this review. If you just want to use the nanobodies described in Pleiner ...

  7. Deep Dive: Fixing and Permeabilizing for Immunofluorescence

    Type
    Blog Post
    Published
    Aug. 30, 2022, 1:15 p.m.
    ...optimize your own protocols. Here we’ll start with just the first couple of steps - mainly, fixing and permeabilizing...call the resulting solution PFA, but it’s really just formaldehyde. Formalin: You may also come across... parameters, but in some cases your antibody may just not be suitable for use with this type of fixation...try it. As you embark on your next IF adventure, just remember that even though these early steps don’...

  8. Getting to Know Expansion Microscopy

    Type
    Blog Post
    Published
    June 20, 2023, 1:15 p.m.
    ... problem. Instead of imaging smaller, what if we just made the sample bigger? In ExM, and its various ...after this stage.  Step 4: Expand! (Typically by just adding water.)  Step 5: Image   Figure ...compatible with in vivo applications and there’s just not much to be done about that.  Second, expansion...cellular and tissue ultrastructure using Ten-fold Robust Expansion Microscopy (TREx). Elife 11:e73775. https...

  9. Introducing Addgene's New Search - Find Plasmids More Easily For Your Research!

    Type
    Blog Post
    Published
    Dec. 3, 2019, 11:38 a.m.
    ...Availability to Industry: Restrict search to plasmids which can be distributed to industry research scientists...to help make this task a faster, easier, and frustration-free experience. Along with the updated search...your current search terms and potential results. Just as in the previous layout, the number of plasmids...

  10. Plasmids 101: Colony PCR

    Type
    Blog Post
    Published
    May 12, 2016, 2:30 p.m.
    ...thermocycling program. One key difference is the plasmid DNA must be released from the bacteria in order to serve ...clones. If you want to store your clones longer term, just streak the colonies on an LB plate. You can use ...serve as the template for your PCR reaction. You just need to lyse the bacteria to release the plasmid...show up on your gel. Beware of false positives. Just because you get the expected sized PCR product doesn...

  11. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...establish the yeast two-hybrid (Y2H) system as a robust and popular lab tool. In the classic two hybrid... positive and false negatives, these experiments must be set up, conducted and analysed with care to get...reporter gene in eukaryotic cells, fusion proteins must gain access to the nucleus. To circumvent this requirement...Y.C., Rajagopala S.V., Stellberger T., Uetz P.  Exhaustive Benchmarking of the yeast two-hybrid system. ...

  12. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

    Type
    Blog Post
    Published
    May 2, 2019, 12:41 p.m.
    ...Finches must learn early, use auditory feedback to learn, babble as baby birds, and have dialects just like...from their work. Researchers are encouraged to not just wait for papers to be published, but to engage in...Lab is using Xenopus frog cell lines to develop robust methods for frog gene editing. They edit in a cell...

  13. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ... diagnostics know how frustrating it can be to get a “bad batch”); Customizable sensitivity and detection...changes after target binding, aptamers are highly customizable in terms of how they actually “report” as biosensors... microarrays and biochips. Ultimately, there are just some applications that lend themselves to aptamer-based...

  14. CRISPR 101: Which Cas9 Do I Choose for My CRISPR Experiment?

    Type
    Blog Post
    Published
    Oct. 13, 2022, 1:45 p.m.
    ...order to produce a double stranded break, two sgRNAs must be used to target two Cas9-nickases (Cas9n) to the...approach is that two sgRNAs targeting opposite strands must be available in moderate proximity to each other... bases nearby that may undergo unwanted editing. Just like with base editing, alternative Cas9s can be...by blocking its initiation. In mammalian cells, robust repression requires targeting dCas9 along with ...

  15. The Challenges of Cell Culture

    Type
    Blog Post
    Published
    May 5, 2016, 2:30 p.m.
    ...by in vivo testing. The mantra being “you can’t trust those whacky cell lines”. This may certainly have... of millions, let alone the human cost. Here are just a few publications which have since been retracted...that can impede collaborations, especially with industry. Today we also have the appropriate tools to verify... paternity test. The test is accurate, precise, robust, and STR profiles are available for all the major...

  16. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    Published
    Oct. 27, 2015, 3 p.m.
    ...only functions at the extreme C-terminus [3]. You must therefore determine your cloning strategy and decide...experimental needs. Equally important, before cloning you must consider whether and how well your FP will function...non-optimized parental proteins. Our recent publication illustrated the quantitative increase in fluorescent signal... PMC2172584. 11. Jokitalo, Eija, et al. "Golgi clusters and vesicles mediate mitotic inheritance independently...

  17. Transferable Skills Guide: Time Management

    Type
    Blog Post
    Published
    Dec. 5, 2017, 1:52 p.m.
    ...something like, “I’ll be there in a few minutes, I just need to split some cells.” Inevitably, this task...than I thought, I’d be too late to meet up, and I’d just end up spending more time in the lab. Obviously ...appealing for me to physically cross things out (it just feels good) and I remember things better when I ... time to listen to some of my favorite podcasts. JUST GET STARTED - One Harvard Business Review article...

  18. 3 Tips to Improve HDR Efficiency for CRISPR Editing in Human Cells

    Type
    Blog Post
    Published
    Sept. 5, 2017, 1:58 p.m.
    ... To generate a specific sequence change the cell must undergo homology-directed repair (HDR), a distinct...the cells. However, our excitement turned into frustration when we sequenced our cells and found how inefficiently...deep sequencing, but interestingly (and to our frustration) in many cases we only saw incorporation of the...but not the other – the efficiency of editing is just too low for one to expect two successful mutations...

  19. Deep Mutational Scanning with One Pot Saturation Mutagenesis

    Type
    Blog Post
    Published
    Feb. 22, 2017, 3:30 p.m.
    ... al is a PCR-based approach for generating a customizable comprehensive mutagenesis library that’s ready...plasmid. If the sites are in opposite directions, you just need to use a plasmid with BbvCI restriction sites...sites in the same orientation as the gene or use custom gene synthesis or site directed mutagenesis to .... PubMed PMID: 20676978. 3. Wrenbeck, Emily E., Justin R. Klesmith, James A. Stapleton, Adebola Adeniran...

  20. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...cloned by two separate labs (Bird et al., 1988; Huston et al., 1988). scFvs are the smallest unit of an...fluorescent protein such as GFP. The HA frankenbody works just like an antibody-based probe, but is easier and ...encoded.   Translational applications of scFvs: Just like antibodies, there are many scFv-based therapies.... https://doi.org/10.1371/journal.pone.0189964  Huston JS, Levinson D, Mudgett-Hunter M, Tai MS, Novotny...
Showing: 181 - 200 of 693 results