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Showing: 41 - 60 of 619 results
  1. Build Your CRISPR Vocabulary

    Type
    Blog Post
    Published
    July 2, 2024, 1:15 p.m.
    ...chromosome encodes a tracrRNA (in some systems including Cas9), Cas proteins, and a CRISPR array. The CRISPR...is transcribed and processed into crRNAs, each including one repeat and one spacer. In bacteria, these ...DNA sequences. In laboratory settings, an sgRNA includes the crRNA and tracrRNA sequences in a “single-...RNAs” are transcribed from the CRISPR array and include a spacer and a repeat sequence. The spacer sequence...mismatches can be tolerated outside this region. Conclusion Ready for some more details? Check out the Addgene...
  2. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

    Type
    Blog Post
    Published
    June 28, 2018, 3:01 p.m.
    ...its associated partners. Common pull-down assays include immunoprecipitation mass spectrometry (IP/MS) and...for each cell type you work with (optimization includes selection of transfection buffer and electroporation...assays using a tag-specific antibody.Note: Always include a positive and a negative control for the tagging...measure of ICC assay specificity. We generally include Sox2-V5 tagging as a positive control in our knock-in...experiments depends on many factors. Some of these include: Most importantly, the crRNA should cut near...Medicine (CRM), Edinburgh. His research interests include optimizing CRISPR/Cas9 genome-editing methods and...
  3. Plasmids 101: Yeast Vectors

    Type
    Blog Post
    Published
    Feb. 25, 2014, 7:11 p.m.
    ... that come with working with prokaryotes. This includes but is not limited to: rapid growth, ease of replica...bacterial cell. Similarly, the specific ORI elements included within a yeast vector determine how the plasmid...controlled if specific regulatable elements are included (reviewed here). Plasmids for use in S. pombe...Scientists can exploit these host mutations by including a copy of a functional gene which complements ...extensive list of yeast auxotrophic markers and includes the associated references.  Yeast selection...
  4. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...of CBEs and ABEs. This post includes a lot of acronyms, so we’ve included a glossary at the end if you...reaction performed by CBEs. However, most CBEs include an inhibitor of base excision repair (BER), the...Multiple labs tried to identify beneficial factors to include in even better cytosine transversion editors. New...proteins had additive effects when multiple were included in the CGBE. They also developed a machine learning...cellular processes that would cause DSBs, and its inclusion significantly reduced indels generated by CGBEs...
  5. Choosing the B(right)est Fluorescent Protein: Aggregation Tendency

    Type
    Blog Post
    Published
    June 15, 2017, 2:30 p.m.
    ...Constantini, 2012), whereas it was previously concluded to be monomeric based on gel filtration (Chudakov...of plasmids that can be used in the OSER assay including CytERM-mKOkappa, CytERM-mTurquoise2, and CytERM-dTomato...for proper ER structure. Based on these data, we conclude that mKOk has dimerization tendency and is not... acts as a monomer in the cell type tested. To conclude, we recommend that you try a couple of different...established true monomeric fluorescent proteins. Concluding remarks Many fluorescent proteins are available...
  6. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...reference pages and curated databases for scientists including Wormbook, Wormatlas and Wormbase. And scientists...workshops not only highlighted new tools but also included time for questions and a group discussion on the... to view and explore the worm. These resources include the open worm browser, which allows you to view...elegans locomotion. To see the other resources included in OpenWorm, check out the OpenWorm website. microPublication...microPublications is curated and added to other databases including wormbase and flybase. microPublication is run ...
  7. Mouse Modeling, Part 1: Genetically Engineered Mice

    Type
    Blog Post
    Published
    July 11, 2019, 1:26 p.m.
    ...experimental manipulation. Common inbred strains include C57BL/6, Balb/c, and 129. Conversely, outbred strains...genetic engineering. Examples of outbred strains include Swiss Webster and Harlan (Hsd) National Institutes... such as an antibiotic resistance gene is also included to select for successfully modified zygotes or...Targeting vectors used to create knockout mice include a reporter gene, which replaces the targeted gene...floxed sites in the cell can occur. Similar systems include tetracycline or doxycycline mediated activation...
  8. Design Tips for Prime Editing

    Type
    Blog Post
    Published
    Jan. 23, 2025, 2:15 p.m.
    ...The pegRNA consists of a CRISPR gRNA extended to include a primer binding site (PBS) complementary to the...genome and a reverse transcriptase (RT) template including the desired edit. Figure 1: Prime Editing...BioRender.com. RNA protectors epegRNAs: epegRNAs include structured motifs at their 3′ end to protect them...binding site (Nelson et al., 2022). PE7: This editor includes the fused RNA-binding protein La to protect the.... That’s all our tips for today! Each tip includes a citation to the paper it was drawn from. If ...
  9. Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More

    Type
    Blog Post
    Published
    June 12, 2014, 3:30 p.m.
    ...Gate Modular Cloning (MoClo) Kit. What does it include? Patron: Sainsbury has a mandate to share and educate...things for day-to-day life in a plant lab, so it includes everyone’s favorite promoters, plus a few new ...resources. We wanted to expand the toolkit. We have included a wider range of terminators than are commonly...a modern toolkit for those working in plants, including many things people already use. It makes the switch...Addgene recently to explore their use in plants, including FRET tools, double dimerization GFPs, and circular...
  10. Great Results Start with Great Standard Curves

    Type
    Blog Post
    Published
    Aug. 15, 2024, 1:15 p.m.
    ...will discuss later.       Standard curves must be included every time the assay is run, ideally with freshly...curves vary depending on a number of factors, including the user, equipment, assay incubation time, etc...curves must be validated for each run. To validate, include a positive control of known concentration in the...Dynamic range depends on a number of factors, including the dilution series of the standard and the minimum...account the range of concentrations possible.  Include both a standard curve and a positive control in...
  11. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

    Type
    Blog Post
    Published
    Aug. 9, 2016, 2:30 p.m.
    ...sites are the most inclusive markers of regulatory regions in the genome, including enhancers, promoters...anywhere in the genome. Aneesh's research interests include proteomics, machine learning, and visualization...project, find enhancers in embryonic stem cells, and conclude with a targeted CRISPR screen that can disrupt...screens for enhancers, check out the Appendix. Conclusion: Shedding light on dark matter Precise knowledge...
  12. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...screen for molecular interactions in the cell, including protein-protein, protein-DNA and protein-RNA interactions...reporter gene (3, 4), there are now many variations, including many that use auxotrophic rescue genes as reporters...likelihood of indiscriminate reporter gene activation. Including a prey-only control also provides a baseline level...reporter signals depend on a number of factors, including protein expression and correct folding, post-translational...-hybrid systems available in model organisms, including bacteria, alternative fungi (C. albicans, pC2HB...
  13. Your Lentiviral Plasmid FAQs Answered

    Type
    Blog Post
    Published
    April 23, 2014, 1:08 p.m.
    ...chimeric 5'LTR that includes a CMV or RSV promoter as well as a portion of the 5'LTR. Including a chimeric 5'...plasmids created for a variety of applications including cDNA expression, shRNA-mediated knockdown, Tet...lentiviral packaging vector, a transfer vector including the gene of interest, and the plasmid coding for...is used; several common laboratory cell lines including 293 were immortalized with adenoviral protein ...
  14. New Tools Enable CRISPRa for Neuroscience Applications

    Type
    Blog Post
    Published
    July 2, 2019, 12:51 p.m.
    ... activation (CRISPRa) tools for neuroscience, including transgenic mice, neuron-optimized viral vectors... express Cre under neuron-specific promoters, including calmodulin-dependent kinase II alpha (aCaMKII;... in primary rat neurons over other promoters, including ubiquitous ones such as EF-1α and CAG. ... the differentiation of other CNS cell types, including microglia, astrocytes, and oligodendrocytes, provided...applications for which CRISPRa is well-suited, including studying mRNA dosing effects, cellular reprogramming...
  15. Designing Your Chalk Talk for the Academic Job Interview

    Type
    Blog Post
    Published
    March 12, 2019, 1:37 p.m.
    ...an interview next week and it includes a chalk talk. What should I include in my chalk talk?" So what exactly...experiments or a laundry list of molecules to screen has unclear utility. You cannot predict what will happen. Without...proposed approach to resolve the knowledge gap? This includes the overview and the individual aims. Describe...Howard Hughes Medical Institute. His interests include the quality control of secretory proteins in the...
  16. Hot Plasmids Spring 2024

    Type
    Blog Post
    Published
    May 23, 2024, 1:15 p.m.
    ...multiplexed elements. The team designed sgRNAs that include an internal barcode and separated multiple sgRNAs...was first described in Anzalone et al., 2019, including modifications to the Cas9 or reverse transcriptase...coding sequences for a range of applications, including CRISPR activation by dCas9-VPR, prime editing,...REVeRT in various contexts in vitro and in vivo, including in human retinal organoids and live mice. Importantly..., Parkinson’s, ALS, and Huntington’s Disease, including plasmids, antibodies, viral vector preps, CRISPR...
  17. Antibodies 101: Immunoprecipitation

    Type
    Blog Post
    Published
    Dec. 7, 2021, 2:15 p.m.
    ...interactions. For difficult to release proteins, including those in the nucleus, more stringent buffers may... may be needed. Since many factors, including salt concentration, ionic strength and pH, affect binding...may degrade the target protein. To prevent this, include protease and phosphatase inhibitors in the lysis...Controls As with any experiment, it is critical to include proper positive and negative controls for an IP...sample that does not. Common negative controls include knockout cell lines or tissues that do not express...
  18. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

    Type
    Blog Post
    Published
    Aug. 13, 2019, 12:58 p.m.
    ... the 1930’s in a range of biological studies, including investigations into environmental pollutants and...organism with a clearly established body plan including head, eyes, and tail. Compared to the opaque mouse...process. Additional zebrafish applications and conclusions Zebrafish are also popular outside of developmental...not ideal for every application. Disadvantages include their duplicated (i.e., redundant) genome, their... these caveats, several features of zebrafish—including the available genetic resources and transparency...
  19. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...systems and creating an all-synthetic vector that included only the elements needed for function. The lab...channelrhodopsins for use as optogenetics tools. These tools include a pair of channelrhodopsins, Chronos and Chrimson...CsChR, and CoChR have been deposited to Addgene, including lentiviral and AAV expression vectors for certain... for the Rinehart phosphoprotein system, which includes detailed protocols provided by the Rinehart lab...repressor plasmids from Scot Wolfe's lab. These include Tet-inducible CRISPR activators and repressor plasmids... contain a variety of N- and C-terminal tags (including His, S-tag, OneStrep, CBP, Trx, GST, Halo, MBP...transgenesis. TheGreenGate kit available at Addgene includes six individual types of pre-cloned insert modules...
  20. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ...genes that regulate a wide variety of phenotypes, including but not limited to cell growth and drug resistance...activate Ras are found in one third of all cancers, including a high percentage (up to 95%) of pancreatic cancers...crowd-sourced map of the RAS signaling pathway and includes 180 unique transcripts. Each gene was chosen to...provided in both open (no stop codon) and closed (including a stop codon) formats. The collection is compatible...collection of over 30 promoters and 140 genes, including constructs with unique tissue-specific promoters...key host for the production of their products, including fermented beer and wine, fuels, pharmaceutical...individual tagging event. Commonly used sequences, including fluorescent tags, a floxed Cbr-unc-119 selectable...
Showing: 41 - 60 of 619 results