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We narrowed to 876 results for: tra

Showing: 481 - 500 of 876 results

  1. Viral Vectors 101: Calcium Sensors

    Type
    Blog Post
    Published
    Aug. 10, 2023, 1 p.m.
    ...readouts are used to monitor calcium concentrations and transients in living cells and organisms. Unlike...sensors to better understand how this metal ion is trafficked and regulated. In this blog we will explore some...parameters. Sensitivity and Localization The calcium concentrations in different subcellular compartments can vary...in fluorescence only occurs at high calcium concentrations. This will reduce noise and ensure you are ...membrane. GCaMP-X is a nucleus-targeted GCaMP6 with an extra apoCaM-binding motif to prevent aberrant binding... violet light and (2) exposure to increased intracellular calcium. It has been applied to mark active ...Whether you’re studying the brain, muscles, or intracellular landscape, remember: Keep Ca+2lm and Ca+2rry...

  2. Plasmid-based Recombinant Monoclonal Antibodies: What They Are and Why You Should Be Excited About Them

    Type
    Blog Post
    Published
    May 4, 2021, 1:15 p.m.
    ...scratched over time, and it was difficult to keep track of growing collections of music. I still have a ...easy for scientists to share, remix, store, and track these essential components of the scientific toolbox...visualize proteins of interest (Greenfield, 2014). Traditionally, they have been made as either polyclonal antibodies...chain and light chain for the antibody and when translated into protein will assemble into a fully functional...synthesize the genes that encode those amino acids (Tran et al., 2016). Each antibody would then be tested...numerous advantages over polyclonal antibodies and traditional hybridomas.  First, the long-term stability, ...Boeckman JX, Manning CF, Nguyen JT, Bechtold H, Dumitras C, Gong B, Nguyen K, van der List D, Murray KD...

  3. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...Epigenetic engineering with single-pot assembly Tracking cell-cell interactions New auxin inducible degron...editing assemblies are sensor-actuators, either transcriptional regulators or chromatin-modifying enzymes. ...protocols.io.brgcm3sw     New system developed to track cell-cell interactions By Jennifer Tsang GFP-based...cell surface. When the cells interact, GFP is transferred to the receiver cell, and the receiver cell turns...human body and G-baToN provides versibility in tracking and modulating the interactions between cells....et al., 2021.   The AID system relies on a transport inhibitor response 1 (TIR1) expressed under a ...highly useful vectors compatible with Gibson and Saptrap cloning systems to generate AID* tagged CRISPR ...

  4. 3D Printing Meets CRISPR Cas9

    Type
    Blog Post
    Published
    Oct. 17, 2017, 12:55 p.m.
    ...These wire models were useful in that they not only traced the 3-D path of the protein’s backbone in three-dimensional...on something tangible. Under the guidance of a trained educator, these instances of focused attention ...reported cleavage site on the complementary DNA strand. And this is why we love working with researchers...”. Jacob computationally added the non-template strand to the Jinek structure so that the resulting physical...protein must have in order to scan along the double-stranded DNA, recognize a PAM sequence, allow the complementary...pairing between the guide RNA and the target DNA strand, and then activate two different endonuclease active...structure captures the displaced non-target DNA strand and shows the HNH nuclease domain swung around ...

  5. Interview: Hodaka Fujii on enChIP, New CRISPR Tools, and More

    Type
    Blog Post
    Published
    Dec. 2, 2014, 7:23 p.m.
    ... inducible translocation trap (ITT) system to analyze signal-induced nuclear translocation of proteins...functions such as epigenetic regulation and transcription by using locus-specific chromatin immunoprecipitation...biochemical analysis of genome functions such as transcription and epigenetic regulation. To elucidate molecular...functions in the hope of developing drugs against intractable diseases. Currently, a number of labs are using... and differences you have observed as you have traveled the world? Fujii: Fortunately, I was able to work...of new technologies may be very effective in transforming conventional research. So, I hope my younger...

  6. How Exercise Purges Stress and Keeps Depression at Bay

    Type
    Blog Post
    Published
    Nov. 25, 2014, 4:02 p.m.
    ...findings in a recent issue of Cell demonstrate how PGC-1a1, a transcriptional coactivator induced in skeletal...have reported a mechanism based on studies of transgenic mice that helps to explain how it works. The .... Mice that are genetically modified to produce extra PGC-1a1 only in their skeletal muscle show resistance... skeletal muscle expression of kynurenine aminotransferases, to enhance the conversion of kynurenine into...expected. "Our initial research hypothesis was that trained muscle would produce a substance with beneficial...release. “We actually found the opposite: well-trained muscle produces an enzyme that purges the body ...

  7. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    Published
    Feb. 27, 2024, 2:15 p.m.
    ...additional questions. Bacterial Strain Addgene can distribute your bacterial strains if they: are E. coli that...to verify any genomic alterations unique to your strain. Please contact us at [email protected] or +1...4363) if you’d like to distribute your bacterial strain(s) through Addgene. Description – please indicate...: Growth and Distribution Please indicate which strain Addgene should propagate your plasmids in: DH5α..., we propagate plasmids in the standard cloning strain DH5α. Please indicate if your plasmid cannot be..., and AAV plasmids, we recommend the NEB Stable strain. For plasmids containing the ccdB gene, such as...Gateway vectors, we recommend the ccdB Survival strain. Figure 10: Enter the growth and distribution ...

  8. Career Insights: Technical Support Specialist

    Type
    Blog Post
    Published
    Nov. 9, 2017, 2 p.m.
    ...their scientific careers hoping to follow the traditional academic route (find tips for getting a faculty...comprehensive lab experience. With this valuable training behind you (and largely only that is necessary...from around the world easier. You should also demonstrate a strong willingness to help others with their...attitude, and an open-minded personality. These traits will help you deal with any incoming requests or... get involved in product testing in the lab, to travel to customers’ sites, and to run experiments with...actually caused the problem. It may not always be straightforward to identify those crucial details because there... The benefit is that these skills are highly transferable and will help you enter other roles in project...

  9. Plasmids 101: Plasmid Incompatibility

    Type
    Blog Post
    Published
    March 31, 2020, 1:15 p.m.
    ... and inhibit its own transcription. As copy number increases, RepA transcription is repressed and replication...indirectly inhibit replication through inhibiting translation of replication machinery proteins, or directly...distinguish between the different plasmids. The concentration of negative regulation system elements in the...smaller, higher copy plasmid can more effectively titrate replication or partitioning machinery away from... if these do not provide clarity, a wet lab transformation experiment will ultimately inform whether your...usually large, low copy virulence plasmids. This strategy has been successful in displacing, or “curing”...classification and identification based on replication and transfer systems and host taxonomy. Frontiers in Microbiology...

  10. Mesothelioma - Causes, Symptoms, and Treatment

    Type
    Blog Post
    Published
    Dec. 13, 2016, 3:30 p.m.
    ...less traumatic to the body as a whole than systemic chemotherapy treatments delivered intravenously. New... those who are running out of hope with more traditional treatments, such as surgery, radiation, and chemotherapy...ingested), it can get into the lining of the lungs or travel to one of the other areas of the body, where it...new form of treatment known as hyperthermic intraperitoneal chemotherapy (HIPEC). With this technique, ...known that one of the best ways to improve the traditionally dire prognosis for mesothelioma patients is ... materials, household products, and even toys! Contrary to the belief of many individuals, asbestos has...Addgene's Cancer Collection Pages Learn How the ClonTracer Library Can be Used to Study Cancer Drug Resistance...

  11. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    Published
    Nov. 10, 2016, 3:30 p.m.
    ...resistant to lower concentrations of a drug, but will be killed by a higher concentration, or sometimes more...today, but it doesn’t have to be some looming, abstract, convoluted scientific concept. It is imperative...bacterium sharing genes with another, an accidental transmission of genes from one bacterium to another through...are referred to as methods of ‘horizontal gene transfer’. Resistance can also arise from random mutations...either through random mutation or horizontal gene transfer, means to defend themselves from these naturally...bacterial infection with a lower than optimal drug concentration. Drug resistance is not a black or white issue... of the bacteria in the presence of a known concentration of antibiotic that has been impregnated into...

  12. CRISPR Activation: A Practical Guide

    Type
    Blog Post
    Published
    Aug. 18, 2016, 2:30 p.m.
    ...been significant work on constructing Cas9 transcriptional activators. These constructs allow for the ...Cas9 deficient in DNA cutting activity to a transcriptional activation domain (Fig 1). Two ways to use...promoter of another gene, thereby driving aberrant transcription. That being said, we generally pick guides by...picking whichever guides are closest to the transcription start site (TSS). We recommend targeting the...Latency Reversal Using CRISPR/Cas9-Derived Transcriptional Activator Systems. PLoS ONE 11:e0158294 . https...Church GM (2015) Highly efficient Cas9-mediated transcriptional programming. Nat Methods 12:326–328 . https...Nishimasu H, Nureki O, Zhang F (2014) Genome-scale transcriptional activation by an engineered CRISPR-Cas9 complex...

  13. Microbes: Look, Listen, and Tell

    Type
    Blog Post
    Published
    Aug. 28, 2018, 12:04 p.m.
    ...possible to multiplex ultrasound dyes because these dyes “collapse” at different ultrasound frequencies. Read...non-invasive methods for cellular imaging with ultrasound. In his research he applies naturally occurring...of dyes allows dye visualization in vivo using ultrasound (for an example see the figure below). In addition...addition to low costs, deep tissue penetration, and high spatial resolution are benefits of this technique...Read more about ‘Using ultrasound to image bacteria in vivo: acoustic reporter genes’ on our blog. Creative....7686 (2018): 86.PubMed PMID: 29300010. PubMed Central PMCID: PMC5920530.  Resources on the Addgene Blog...

  14. Your Top Requested Plasmid in 2016!

    Type
    Blog Post
    Published
    Jan. 11, 2017, 8:47 p.m.
    ...plasmid post transfection. The 2A "self cleaving" peptide causes the ribosome to translate Cas9-2A and ...be used to transfect a variety of mammalian cells and can be modified for viral trasduction (see the Zhang...component of most CRISPR systems and generates double strange breaks at target sites 5' of the 5'NGG3' PAM sequence...can be used to test for SpCas9 expression post transfection by western blot. Overall, this is a versatile...2013): 2281-2308. PubMed PMID: 24157548. PubMed Central PMCID: PMC3969860. Resources on the Addgene Blog...

  15. Why Do I Need an MTA Anyway?

    Type
    Blog Post
    Published
    May 1, 2014, 8:23 p.m.
    ...Uniform Biological Material Transfer Agreement (UBMTA) for its material transfers. The UBMTA was drafted by... has time for paperwork? Here’s why a Material Transfer Agreement (MTA) matters: Science thrives on collaboration...universities and institutions require them for material transfers. When Addgene entered the plasmid sharing space...order, Addgene generates the MTA and emails it straight to you, or we can send it directly to your institution...receiving institution. Therefore, many technology transfer officers are familiar with the UBMTA and are happy...  material transfer agreement...

  16. X-CHIME: Context Dependent Germline Knockout in Immune Cells

    Type
    Blog Post
    Published
    Jan. 16, 2024, 6:13 p.m.
    ...systems Name Function Plasmid Transduction Marker Mouse Strain C-CHIME Knocks out a pair of... LaFleur et al., 2019b). CHIME works through transduction of Cas9-expressing (Rosa26-Cas9) hematopoietic... a lentiviral vector containing a gRNA. These transduced stem cells can be implanted in irradiated recipients...suite of four systems which utilizes custom mouse strains and lentiviral expression vectors (Table 1). The...positive control genes in CD4+ and CD8+ T cells. To demonstrate the power of these systems to investigate in ...generation of exhausted CD8+ T cell subpopulations and restrains tumor immunity. Nature Immunology 20, 1335–1347...

  17. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

    Type
    Blog Post
    Published
    Nov. 3, 2015, 3:30 p.m.
    ... that we can invest our time into learning and extract the most value? This is only one of many decisions...tools assess repair events by type (NHEJ/HDR) and track indels at a single locus, usually the target site...exclusively for NGG PAM targets and began allowing for arbitrary PAM definitions. These newer tools may still prove...on downstream results. Examples: “HTML”, “visual track”, “plot”, “tabular”, “interactive”, and “save”. ...enthusiasts, take a look at sgRNAcas9. Top tools for transferring CRISPR technology to a new organism: For obvious...but comes with a graphical user interface. Best strategy for labs: Define what you need the software tool...on your needs. We will likely begin to see a contraction of available tools with more and more features...

  18. Replacing Paper: Tips for Choosing an Electronic lab Notebook

    Type
    Blog Post
    Published
    July 10, 2018, 1:08 p.m.
    ...them to track and find data and information. If an employee leaves the institution, the transition is smooth...that bring more to the table in terms of data traceability and reproducibility of research. Electronic ...work. It is already becoming impossible to keep track of it all in paper notebooks. Following these findings...one place, easily retrievable, searchable and traceable. However, switching from paper to an electronic...requires time and knowledge. In a recent article, we translated our knowledge of electronic lab notebooks into...electronic signatures, electronic witnessing and audit trails. How does the ELN provider protect and respect...Researchers spend 40% of their time on tedious administrative tasks that drain resources from the actual ...

  19. Treating Muscular Dystrophy with CRISPR Gene Editing

    Type
    Blog Post
    Published
    Jan. 26, 2016, 3:30 p.m.
    ...) to remove mutated exons from the dystrophin transcript. Unfortunately, the oligonucleotides only modestly... DMD patients. Figure 1: Exon skipping strategies for Duchenne muscular dystrophy. gRNAs can be...in one experiment, they found the exon-skipped transcript constituted 59% of total dystrophin mRNA, similar...human-relevant exons 45-55, rather than in the traditional exon 23-mutated mouse model. Potential off-target...Feb;24(1):69-86. PubMed PMID: 24506781. PubMed Central PMCID: PMC3922311. 6. Tabebordbar M, Zhu K, Cheng...Mar;23(3):523-32. PubMed PMID: 25492562. PubMed Central PMCID: PMC4351462. 8. Ousterout DG, Kabadi AM, ...2015b Feb 18;6:6244. PubMed PMID: 25692716. PubMed Central PMCID: PMC4335351. 9. Ran FA, Cong L, Yan WX, Scott...

  20. Antibodies 101: Epitope Availability

    Type
    Blog Post
    Published
    Jan. 11, 2022, 2 p.m.
    ...bound to anything? Is it a transmembrane protein, or is it know to translocate or fold in certain conditions...as part of performing a specific function. A transmembrane protein that is being used as a marker for flow...out of a complex mix of proteins that have been extracted from a cell, instead of when it is attached to...looking for a protein of interest while it’s in a transition state or specific configuration. So how do you...conditions? It can help to visualize an abstract protein during your sample prep process, imagining how it...the assay can help you avoid a great deal of frustration when designing and troubleshooting immunoimaging...
Showing: 481 - 500 of 876 results