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We narrowed to 816 results for: nin

Showing: 201 - 220 of 816 results

  1. Hot Biosensors 2022: Year-End Roundup

    Type
    Blog Post
    Published
    Dec. 6, 2022, 2:15 p.m.
    ...dynamics in live mice under a variety of behaviors, opening up new research directions that were inaccessible...concentrations in cells than existing sensors. Using genome mining and structure-guided engineering of potassium binding.... Figure 5: Structure-guided design and genome mining both led to new sensors with lower binding affinities...sensor plasmids here!   Torres Cabán CC, et al. Tuning the Sensitivity of Genetically Encoded Fluorescent... Indicators through Structure-Guided and Genome Mining Strategies. ACS Sens. 2022 May 27;7(5):1336-1346...cellular concentrations of lactate. The microfluidic screening platform developed here is also a promising approach...Figure 6: A) Schematic of BeadScan platform for screening candidate biosensor variants for performance under...

  2. Multiple Plasmids at a Low Price: Kits from Addgene

    Type
    Blog Post
    Published
    Sept. 14, 2016, 2:30 p.m.
    ...useful kits you can order from the repository: FX Cloning Kit BIOFAB Plasmid Set pCri System Cell Free Protein...please write to us in the comments section.  FX cloning kit This kit is designed to be used with Type IIS...sites used in these vectors are of low abundance (meaning they are unlikely to be found in your gene of interest... incorporation of extensive sequences used for cloning into the final translated products. Negative selection... help decrease false positives observed in the cloning process, making it easier to produce the constructs...interest in a variety of model systems, thereby opening your research to a variety of experimental opportunities...fusions all use the same restriction enzymes for cloning. Furthermore, some plasmids contain peptides to...

  3. Delivery Methods for Generating iPSCs

    Type
    Blog Post
    Published
    April 17, 2018, 1:37 p.m.
    ...compared to other delivery methods. Retrovirus has a cloning capacity of ~8 kb, so either a single polycistronic...dividing and nondividing cells and have a larger cloning capacity (8-10 kb) than other retroviral vectors...between a vector and chromosomal DNA. PB has a cloning capacity of ~9-14 kb. This system is transfected...transfected into cells as a donor plasmid containing the transposon, along with a helper plasmid that expresses...which is removed by culturing cells at 38℃, but screening cells for the presence of transgenes is still ...help mediate their transduction, such as the polyarginine peptide described in Zhou et al and Kim et ...large nucleoli, and little cytoplasm. Positive staining for alkaline phosphatase, expression of embryonic...

  4. Deep Dive: qPCR

    Type
    Blog Post
    Published
    Sept. 29, 2022, 1:15 p.m.
    ...appropriate choice (Panina, 2018). Look for studies specifically aimed at determining the best options for...Zhang M, Hu G, Fang F. Fudenine, a C-terminal truncated rat homologue of mouse prominin, is blood glucose-... amounts of reagents in your chemistry, unless running a multiplex reaction or on a rapid cycle machine... quick way to validate your primer probe is by running your qPCR product on an agarose gel, then cutting...real-time RT-PCR. J. Immunol. Methods 283:291–306.Panina, Y., Germond, A., Masui, S. et al. Validation of...Digital Droplet PCR for AAV QuantificationPlasmid Cloning by PCR...

  5. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

    Type
    Blog Post
    Published
    Sept. 28, 2020, noon
    ...contain BsaI sites for easy cloning of a gRNA of interest. Cytidine and adenine base editing in Streptomyces...breaks are lethal because the non-homologous end-joining (NHEJ) repair pathway is not very robust. In many...applications for which they’ve been used. The beginnings of bacterial CRISPR engineering One common way...template, using Gibson Assembly or restriction enzyme cloning. Streptomyces bacteria are more recombinogenic ...directly modify a given gene. CRISPR-tranposons By combining CRISPR editing and transposons, the Sternberg ...inducer, in this case anhydro-tetracycline (aTc). By cloning in two tandem copies of the gRNA cassette, one ...Sun lab demonstrates the utility of cytidine and adenine base editors that enable C-to-T and A-to-G base...

  6. An Addgene Summer Internship

    Type
    Blog Post
    Published
    Aug. 8, 2024, 7:22 p.m.
    ...expand my knowledge more than ever before. Before joining Addgene, I had spent most of my junior year stressed...well as complete the lab safety and cybersecurity training before stepping foot into the lab itself. I appreciated... as equals, because as soon as I had passed my training, I dove straight into my capstone project. A capstone...wrong. My capstone project was based on plasmid cloning and I, the researcher, got to choose what gene ... winner. We used the next 4-5 weeks to work on cloning the Syntaxin3 gene in a pLenti vector backbone....assembly but decided to go ahead anyway. We were running on a time crunch and knew that if we were to restart...

  7. Addgene at the ASM Microbe 2016 Conference

    Type
    Blog Post
    Published
    July 7, 2016, 2:30 p.m.
    ...up the Addgene booth on Thursday evening, I stayed to see the Opening Keynote address with Bill Gates.... lab). Bright and early on Saturday morning, John Doench’s opening presentation at the CRISPR screens ...well-optimized CRISPR screening technology. Addgene got several shout-outs for making popular screening libraries ...

  8. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    Published
    Nov. 28, 2017, 2 p.m.
    ...you need until the team really starts functioning (or malfunctioning). Clear lines of communication Few ...that many researchers feel that they lack formal training in a variety of transferable skills. At Addgene...The famous discoveries and experiments I’d been learning about for years were usually the products of teams...I can also orchestrate the formation of high-functioning-but-temporary teams that have a specific purpose...snapped out of the phase of my life that had me listening to Simon & Garfunkel’s “I Am A Rock” on repeat...a team is a really good way of creating and strengthening those social bonds. So never mind how much better...

  9. Scientists Map the SARS-CoV-2-Human Interaction Network

    Type
    Blog Post
    Published
    April 9, 2020, 1:15 p.m.
    ...FedEx envelopes in a single day -- all while maintaining social distance.  From front to back: David Gordon... fight against coronavirus We are just at the beginning of understanding how SARS-CoV-2 interacts with...used HEK293T cells in our first study, but we're planning to soon expand to other cell types, including ...community's help. You could be the next scientist joining in this worldwide fight against SARS-CoV-2. As ...flanked by EcoRI and BamHI restriction sites - so cloning projects should be fun and straight-forward. All...confirmed expression via mass spec for two of the remaining viral proteins. Only Nsp11 ran bigger than expected...

  10. Trading Spaces - Visiting Scientist Edition

    Type
    Blog Post
    Published
    Aug. 22, 2023, 1 p.m.
    ...If you’re interested in learning a new skill, getting access to equipment you don’t have, or maybe both...researcher remains employed by their home institute, meaning the host university does not hire or pay them (...current institute. A common reason is hands-on training in a technique that only a few labs have expertise...this expertise will provide you with guidance and training so that you yourself can become an expert and ... Identify reagents you will need, any required training, and a priority list of experiments you hope to... Visiting scientist positions take commitment, planning, and funding – they may not be right or necessary...

  11. Hot Plasmids - June 2019 - Optogenetics, Acoustic Reporter Genes, microRNAs, and the CRISPR-Cas9 system CHIME

    Type
    Blog Post
    Published
    June 6, 2019, 12:41 p.m.
    ...PMID: 30704911. Acoustic reporter genes for noninvasive imaging of microbes in mammalian hosts Article...podcast segment In recent years, scientists are beginning to find connections between the microbiome and...largest miRNA sensor collection reported to date, containing all 620 sequences of probable mature human miRNAs...consists of a library of reporter plasmids, each containing two fluorescent proteins and four repeats of ...plasmids is amenable to Golden Gate assembly for turning the single-input reporters into multi-input cell...al., Nat Commun, 2019. PubMed PMID: 29934631. Screening immune cell lineages in vivo using the CRISPR-...

  12. Plasmids 101: Screens vs. Selections

    Type
    Blog Post
    Published
    Nov. 10, 2022, 2:15 p.m.
    ...component. Alternative screening techniques While CRISPR and drugs dominate the screening scene, there are ... a selection, you might put cells into a drug-containing media in which only cells which can tolerate ...is typically not feasible to test in any given screening experiment. Thus, a limited panel is usually selected... sensitive enough? No one wants to spend time screening hits that aren’t “real” or novel for their purposes...Dijkhuizen, L. Directed evolution of enzymes: Library screening strategies. IUBMB Life, 61: 222-228 (2009). doi...

  13. Sweating the Small Stuff: Details in the Lab

    Type
    Blog Post
    Published
    Feb. 8, 2022, 2:15 p.m.
    ... all scientists? Curiosity? Passion? A love of learning? No. Or at least not entirely. What truly unites...the Issue You can’t fix an experiment by simply running it unchanged over and over again, and the same ...works, so do it anyway.  You may find that after running a protocol a few times, you no longer need the ...few key reminders on a sticky note   Visual Planning  Plate maps, pre-labeling tubes, and even drawing...stressed, or rushing. I would spend the time quietly running through the experiment in my head, double-checking...another short "quiet period" instead of immediately running to the next thing.  It may seem counterintuitive...

  14. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    Published
    July 11, 2017, 2:30 p.m.
    ...sequences for cloning purposes.  Press run and wait for the generation of an output folder containing several...contain 4-12 gRNAs/gene, which results in libraries containing up to around 200,000 different gRNAs. It has ...several files. These include: Output: A text file containing full information about the suggested gRNAs to...generated. Output_Short: A condensed text file containing a full and a short name for each gRNA, as well... vectors and genome-wide libraries for CRISPR screening." Nature methods 11.8 (2014): 783-784. PubMed ...Addgene.org Learn More About CRISPR Find CRISPR Screening Libraries Browse All CRISPR Plasmids ...

  15. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    Published
    March 14, 2017, 2:30 p.m.
    ...knowledge with our bodies’ natural abilities, we’re gaining new ground in the fight against cancer in its many...between tumors and the immune system We’ll begin by learning how the immune system naturally interacts with...concept of immunoediting, by way of favorably attaining the equilibrium stage. This can be called “stalemate...and open questions in cancer treatment We are beginning to see the fruits of many years of labor with ...enter the clinic, physicians and researchers are learning much about how treatment regimens can be improved...effective. Some important factors researchers are beginning to focus on include: Cell heterogeneity Tumors...Collection Pages Plasmid Grant to Aid Cervical Cancer Screening in Ghana Modulate Cancer Signalling Resources...

  16. Celebrating 15 Years of Scientific Sharing

    Type
    Blog Post
    Published
    Jan. 14, 2019, 2:08 p.m.
    ...At Addgene we will never ever stop planning, perfecting, and learning, but there are a lot of things we...support more new projects. Diversification is happening. The Addgene team will have some fun challenges...external website appearance and functionality are happening and this strengthens our image in the world. ...inclusive workplace for everyone. We had Unbiasing Training in place before it was cool or a necessary result...research  Learn about our viral service Check out job openings at Addgene  ...

  17. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    Published
    July 14, 2021, 1:15 p.m.
    ...method. These proteins bind the IgG heavy chain. Running the serum over a column of resin crosslinked to... In this case, the serum is run over a column containing the target protein, and any antibody recognizing...pre-adsorb the antibodies, pass them through a column containing immobilized serum protein from other species....target protein. While this can increase background staining (see next section), it may be advantageous if ...might experience variability in the strength of staining and background noise. If you do use different ...choose the appropriate controls to be sure the staining you are seeing is real. It’s important to include...

  18. Overcoming the Challenges of Lentiviral Production

    Type
    Blog Post
    Published
    Aug. 7, 2018, 12:31 p.m.
    ...trying to produce virus of a usable titer, or fine-tuning selection and expression in your target cell line...that usually encodes VSV-G, a packaging plasmid containing structural genes and a transfer plasmid carrying...will also affect experiment optimization. Before beginning an experiment, it is recommended that you try ...challenging. With these considerations in mind, when planning an experiment users should weigh the benefits ...collected, filtered, and titered. A major obstacle in obtaining usable lentivirus is producing a high enough concentration..., at Addgene we typically concentrate 100-fold meaning that a 10 cm2 dish preparation of virus will only...

  19. Popular Retroviral Vectors and Their Uses in Scientific Research

    Type
    Blog Post
    Published
    July 24, 2018, 12:51 p.m.
    ...Retroviral vector for cloning and expressing your gene of interest with GFP expression.  Cloning and expressing...CRISPR pooled libraries that allow functional screening of thousands of genes in genome-wide experiments...regulation, gene of interest expression, knockout, and screening. There are many more useful viral vectors available...collection can be used for in vivo phenotypic screening of small-molecule libraries and can be combined...lentiviral expression vectors (empty backbones) here. Cloning and expressing new shRNA sequences pLKO (Plasmid...

  20. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    Published
    April 28, 2016, 2:30 p.m.
    ...off expression of one gene, while simultaneously turning on the expression of another! What Are FLEx switches...FLEx switch that turns BFP expression off, while turning on mCherry expression. For this FLEx switch to ...the first recombination step will invert the intervening DNA fragment using either loxP or lox511 sites...FLEx systems are generally considered "Cre-On" meaning that your gene of interest starts in the inverse... genOway, we are able to distribute materials containing FLEx technology. Read the genOway press release... Michelle Cronin...
Showing: 201 - 220 of 816 results