Skip to main content
Addgene
Showing: 341 - 360 of 458 results
  1. DAP arrays for multiplex gene editing

    Type
    Blog Post
    Published
    July 7, 2022, 1:15 p.m.
    ...engineered a DAP array for prime editing, achieving up to 3-loci MPE with similar high efficiencies, which is ...packaged into viral vectors for potential in vivo applications or multiplex CRISPR screening.   Using tRNAs...multiplex genome engineering of crops or allow for sophisticated CRISPR screenings that would perturb the unprecedented...and efficient in plasmid and viral vectors. In applications when repetitive tRNA sequences must be avoided...construct DAP array for multiplex gene editing applications, we provide detailed manual and online design...
  2. Viral Vectors 101: The AAV Retrograde Serotype

    Type
    Blog Post
    Published
    April 27, 2023, 1:15 p.m.
    ...specifically expressing Cre in the hippocampus (Fig. 3). The Cre-dependent AAV would access the neurons (...Tracers are typically delivered to a particular location and they either trace downstream from the soma...Others have noted a lack of transduction in catecholamine pathways from the spinal cord (Wang, 2018, Metcalfe...not yet understood, one thing is clear: this application opens a lot of doors in neuroscience. The retrograde...retrograde serotype also has promising therapeutic applications; it can enhance therapeutic delivery across ...
  3. REPLACR Mutagenesis: Replacing In Vitro Recombination Methods

    Type
    Blog Post
    Published
    Feb. 10, 2016, 3:30 p.m.
    ... genetic modification by homologous recombination. In most recombineering strategies, only 3-4 phage proteins... the steps of gel purification and in vitro recombination. Across all modifications described in Trehan...mutations, large deletions/insertions require complicated, often costly in vitro assembly methods. A new...
  4. K. phaffii: Rising to the Occasion

    Type
    Blog Post
    Published
    April 4, 2023, 1 p.m.
    ... Obligate aerobe Number of chromosomes 16 3 4 Preferred carbon source Glucose Glucose...2017). Beyond human relevance, yeast have many applications in food science and biotech due to its fermentation... ancient yeast strains and metazoan cells.   Applications for K. phaffii There’s a number of different...is exceptionally good for post-translational modification of recombinant protein products, specifically...
  5. Predicting Adverse Reactions to Monoclonal Antibody Drugs

    Type
    Blog Post
    Published
    Feb. 13, 2024, 2:15 p.m.
    ...will likely bring about unwanted immunogenicity. The 3-D models can be applied to corroborate the occurrence...silico approach The in silico approach cannot replicate the complexity of antigen processing events that...This system would somewhat act like a 2-step verification. All approaches have their own limitations. ... together can inform decisions about in vivo application and clinical testing. This would pave the way...
  6. How to Lead a Great Meeting

    Type
    Blog Post
    Published
    Feb. 9, 2016, 3:30 p.m.
    ...an updated protocol), send an email instead. The 3 A's - Agendas, Action items, and Accountability Agendas... dialogue and community among participants, clarification - new and useful information, and invigoration...be the representative in the meeting and then communicate outcomes to the rest of their team. Here's a ...
  7. 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.
    ...development since its inaugural year in 2012. That’s just 3 to 4 years ago. It is a bubble of innovation (a piñata...PMID: 23873081. PubMed Central PMCID: PMC3969858. 3. Doench, John G., et al. "Rational design of highly...into this category describe how the user is expected to interact with the software. This category is important... CRISPR software submissions. With few prior publications to go on, a submitted manuscript could only ... solutions that facilitate most experimental applications in CRISPR engineering. When compared to that...easy to fault the lack of features in a single application. The question is then, should we use all tools...1 Jan 2013, no longer available), is a simple catalogue of reported sgRNA designs. The second database...
  8. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...edits. Figure 3: Mechanism of cytosine transversion editors. Red arrows indicate a conversion directly...guide RNA, (2) a complementary DNA sequence, and (3) a protospacer-adjacent motif (PAM) on the opposite...directly catalyzed by the base editor. Black arrows indicate natural cellular processes. Created with BioRender.com...editing works in general. Base editors use either catalytically dead Cas9 (dCas9) or a Cas9 nickase (nCas9) ...excision repair (BER), the cellular process that catches mutated U’s in DNA and ideally converts them back...terms gRNA/sgRNA Guide RNA RNA used by Cas9 to locate a matching DNA sequence.   Target strand The ...directed base excision repair proteins. Nature Communications, 12(1), 1384. https://doi.org/10.1038/s41467...
  9. Four Factors that Differentiate the Stem Cell Field

    Type
    Blog Post
    Published
    Sept. 28, 2016, 2:35 p.m.
    ... scientists have certainly not lost site of that. 3. Stem cell science is hard, and expensive Dr. Yamanaka... have profound impacts on the development of applications with the potential to save lives. While most...
  10. New and Upcoming Viral Vectors - May 2020

    Type
    Blog Post
    Published
    May 28, 2020, 1:15 p.m.
    ...Cepko 83898 AAVrg pAAV-mDlx-ChR2-mCherry-Fishell-3 Gordon Fishell   Chemogenetics Chemogenetics offers...availability date or to be notified when a particular catalog item is available for order please email [email protected]...
  11. Plasmids 101: Cre-lox

    Type
    Blog Post
    Published
    Jan. 13, 2015, 3:47 p.m.
    ...PubMed PMID: 2839833. PubMed Central PMCID: PMC281709. 3. Tissue– and site–specific recombination in transgenic...recombinase catalyzes the site specific recombination event between two loxP sites, which can be located either...maintained).  Translocation: If the sites are on separate DNA molecules, a translocation event is generated...important plasmid elements – promoters, origins of replication, protein tags, and antibiotic resistance markers...creating (excuse the pun) specific, targeted DNA modifications in transgenic animals, embryonic stem cells,...proteins or co-factors, thus allowing for broad applications in a variety of experiments. LoxP (locus of ...and the canonical loxP sequence is ATAACTTCGTATA-GCATACAT-TATACGAAGTTAT. The loxP sequence does not occur...
  12. Visualizing Protein Turnover In Situ

    Type
    Blog Post
    Published
    Jan. 16, 2018, 3:20 p.m.
    ... PMID: 14166766. PubMed Central PMCID: PMC300121. 3. Söderberg, Ola, et al. "Direct observation of individual...This application of AHA labeling is known as fluorescence noncanonical amino acid tagging (FUNCAT, Dieterich...experiments. Visualizing newly synthesized proteins with FUNCAT Professor Schuman’s technique applies metabolic...the whole de novo synthesized proteome. However, FUNCAT alone cannot be used to determine the turnover ...specific protein. Professor Schuman’s lab showed that FUNCAT’s usefulness can be extended to determine the turnover...ligation assay (PLA). The clever combination of FUNCAT and PLA PLA was originally published by the Söderberg...DNA strands take part in rolling circle DNA amplification. The amplified DNA segment is labeled with fluorescent...
  13. Viral Vectors 101: Types of viruses

    Type
    Blog Post
    Published
    June 6, 2023, 1:15 p.m.
    ...Gammaretroviral vectors: biology, technology and application. Viruses. 2011 Jun;3(6):677-713. DOI: 10.3390/v3060677 ...injections, or the location of a specific cell type doesn’t always lend itself to direct application of virus. ...addition of a helper virus or plasmid allows it to replicate episomally, essentially remaining an extrachromosomal...extrachromosomal part of the host genome that can replicate and divide along with the endogenous DNA. AAV also...gamma-retro viruses. This is large enough for many applications, but in some cases multiple AAVs (co-infection...and AAV. If you’re wondering more about what applications these viruses are good for, we have plenty of...Adenovirus-Mediated Gene Delivery: Potential Applications for Gene and Cell-Based Therapies in the New...
  14. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    Published
    July 14, 2021, 1:15 p.m.
    ...is given additional booster immunizations every 2-3 weeks to increase the antibody titer. The titer is...from the serum. Protein A/G purification Protein A or Protein G purification is one common method. These...reagent that works for your species. Affinity purification Only up to 5% of the IgG antibodies produced...specific for the immunogen. A different type of purification can be performed to isolate antibodies only ...inexpensive. Their short production time and the bulk purification steps keep the cost low compared to other antibody...are particularly useful for certain research applications. Many secondary antibodies are polyclonal, as...target protein thereby greatly increasing signal amplification.  When to stay away from polyclonal antibodies...
  15. Viral Vectors 101: Viruses as Biological Tools

    Type
    Blog Post
    Published
    March 21, 2023, 1:15 p.m.
    ...PubMed PMID: 1631159. PubMed Central PMCID: PMC49545. 3. Coffin J, Hughes S, Varmus H. Retroviruses. Cold ...enough to ensure the virus can replicate and spread. Instead, viruses replicate by hijacking the host’s system...low immunogenicity which makes them ideal for applications with whole organisms. Finally, viral delivery...delivery is typically straightforward across applications, while electroporation of a human, for example, isn...people in nature, extra safety measures, like replication incompetent viral particles, are required. We... (~4.5kb From basic science to clinical applications, viruses are true bench to bedside tools. Keep...our upcoming blogs on virus safety and viral applications to help you start (safely!) thinking about the...
  16. Hot Plasmids - February 2022

    Type
    Blog Post
    Published
    Feb. 22, 2022, 2:15 p.m.
    ...students new to protein expression and purification. Figure 3: The Penn State Ladder run on SDS-Page...editing applications.  Figure 4: Overview of CasMINI for genome engineering applications. Image ...stability in cells, and use it in a variety of applications. This set of new anti-FLAG frankebodies includes...to FLAG-tag H2B for nuclear localization. (c) Applications of anti-FLAG-FB-GFP labeling various targets... and anti-HA frankenbodies have a variety of applications, including live-cell imaging, single-molecule...challenges for in vivo delivery and cell engineering applications. CasMINI, a new miniature CRISPR-Cas system ...
  17. Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics

    Type
    Blog Post
    Published
    March 3, 2020, 2:15 p.m.
    ...synthetic biology tools for cyanobacteria. Figure 3: Assembly of plasmids using the Cyanogate Kit and ...voltage indicator Article contributed by Shreya Vedantam Genetically encoded voltage indicators (GEVIs)...fluorescent optics. Existing red fluorescent voltage indicators, however, fall short compared to GFP-based sensors...linker between them. The Ace-mScarlet voltage indicator works like many FRET-opsin GEVIs. With an increase...channelrhodopsins. Find the Ace-mScarlet voltage indicator plasmids at Addgene! Beck et al., Sci Report 2019...increasingly been recognized for its biotechnological applications including conversion of CO2 into water and electrical...the N-terminus of Cre (CreN) are fused to the truncated Phytochrome B (PhyBΔ) and the active protein binding...
  18. Reagent Repositories Are Speeding up Science During the Pandemic

    Type
    Blog Post
    Published
    Aug. 4, 2020, 1:15 p.m.
    ...Addgene's COVID-19 plasmids and resources! Case study 3: Mouse strains Reagents developed during the SARS-...tropism, replication kinetics, and cell damage profiling of SARS-CoV-2 and SARS-CoV with implications for ... Another example of reagents that have broad applications but have proven useful to the study of SARS-...vectors VSV-G and psPAX2, which were used in a publication by Xiuyuan Ou, et al. that characterized the ... requested these plasmids from Addgene. This publication then resulted in the development of a new plasmid...production and distribution is possible due to the dedicated facilities and manpower that a repository provides...
  19. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    Published
    Jan. 14, 2016, 3:30 p.m.
    ...the insert is large, we may only check the 5’ and 3’ ends to verify that the sequence assembly and identity...digital notebook and make sure you note the freezer location of every plasmid in your collection. Use one of...access and use the materials they need, and avoid duplicating your effort. In addition, if you should choose... important step in ensuring quality, as it will catch any errors made during the cloning, sample handling... for more tips on sequence analysis, plasmid verification, and using NCBI BLAST. Tips for high-throughput...result against the expected sequence for quick verification, which can be done through the align tab of ... plasmid verification...
  20. Why and how to start studying chromatin (with Addgene's help)

    Type
    Blog Post
    Published
    June 12, 2018, 11:40 a.m.
    ... The DNA packed into our chromosomes is very much 3-dimensional, as you can see by this post’s chromatin...transcription, or DNA repair, or replication, or any number of CRISPR applications and thought “OK, but how does...pages containing lists of plasmids from the indicated publications. You can request all of these plasmids ...below pull up lists of plasmids containing the indicated gene, and you can subscribe to these pages to ...
Showing: 341 - 360 of 458 results