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Showing: 561 - 600 of 821 results
  1. Screening for Successful Genome Editing with Digital PCR

    Type
    Blog Post
    Published
    March 30, 2017, 2:30 p.m.
    ...a gene of interest is one of the most common applications of precision genome editing, the remainder of...single molecule resolution of digital PCR allows classification of individual target molecules based on their...single wells of a 96-well plate without prior quantification. Comparatively, mismatch assays require between...
  2. A Novice's Perspective on Neuroscience - SfN2017

    Type
    Blog Post
    Published
    Dec. 15, 2017, 2:07 p.m.
    ...the things that popped out to me as a novice and indicate why other neuroscience newbies might want to get... reinforce our goals of making more AAVs and educational content to help researchers use these great tools...start making the AAV, or help us produce new educational content on the blog. Overall, there are many ...
  3. Kiran Musunuru on the Newest TALEN Genome-Editing System

    Type
    Blog Post
    Published
    Dec. 10, 2013, 3:13 p.m.
    ...Musunuru: The kit includes 832 plasmids containing prefabricated pieces that allow you to build a DNA-binding...diseases. We are knocking out genes that have been implicated in disease or, in cases where particular variants...less than a month's time. Addgene: What are the implications of this kit in terms of understanding human ...
  4. Addgene: The First Twenty Years

    Type
    Blog Post
    Published
    Dec. 19, 2024, 2:15 p.m.
    ...as well as developing and sharing supportive educational resources. By 2017, we had distributed 1,000 ...We also created a growing library of antibody educational resources, including our new Antibodies 101 eBook...community by depositing, ordering, or using our educational resources. And we look forward to twenty more...
  5. CRISPR 101: Cas9 vs. The Other Cas(s)

    Type
    Blog Post
    Published
    Dec. 8, 2022, 2:15 p.m.
    ...a defined site to form a clean DNA break, Cas3 locates its target sequence and initiates single stranded... out large regions of DNA and has anti-viral application potential as a result. Fast facts – PAM requirement... has been proposed to be useful for the same applications (RNA knockdown, RNA editing, etc.). The main...
  6. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

    Type
    Blog Post
    Published
    April 12, 2016, 2:30 p.m.
    ...sequences via oligo synthesis using the format indicated below and pool-clone them into the pAWp28 storage...realization of a variety of perturbations and applications in functional genomics, cell reprogramming, ...CRISPR/Optogentics Tools Resources on Addgene.org Catch up on Your CRISPR Background with Our CRISPR Guide...
  7. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ...including excision or insertion, inversion, translocation or cassette exchange. By utilizing recombinases...BioRender.com In their recent ACS Synthetic Biology publication, Mary Dunlop’s lab generated a photosensitive...regions with Vivid (Vvd) photodimers. Upon the application of blue light, Vvd dimerizes bringing the C-terminal...
  8. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ...it is important to carefully select the target locations of knock-in studies to avoid off-target effects...it comes to targeting precision and practical application. If the CRISPR/Cas9 system is not effective for...lncRNAs with high specificity, particularly in applications requiring smaller delivery systems (Zibitt et...
  9. Making CRISPR Plasmids Using Fragmid

    Type
    Blog Post
    Published
    Aug. 29, 2024, 1:15 p.m.
    ...ampicillin resistance cassette and an origin of replication, which are not schematized. Sizes of fragments...five months. When they tested those clones (in duplicate), 93% had the correct banding pattern in the restriction...correct. Because they created the assemblies in duplicate, they were able to confirm that at least one plasmid...
  10. Popular Retroviral Vectors and Their Uses in Scientific Research

    Type
    Blog Post
    Published
    July 24, 2018, 12:51 p.m.
    ...-humanized (Plasmid #44246) Expression of a catalytically inactive (dead), human codon-optimized Cas9 ...be used to construct complex lentiviruses for modification of mammalian cells with a single viral infection...Gammaretroviral Vectors: Biology, Technology and Application. Viruses. 2011. PubMed PMID: 21994751. PubMed...
  11. Adeno Associated Virus (AAV) for Cell and Gene Therapy

    Type
    Blog Post
    Published
    Nov. 7, 2017, 1:59 p.m.
    ...passionate about HIV cure research and science communication.     References 1. Gaspar, H. B., S. Howe, and...affinity-purified receptor-targeted viral vectors." Nature communications 6 (2015): ncomms7246. PubMed PMID: 25665714...our AAV Production Protocol Check out our AAV Purification Protocol ...
  12. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    Published
    April 28, 2016, 2:30 p.m.
    ...sites directs the Cre recombinase to invert, translocate, or excise a DNA fragment. The availability of... the function of various point mutations and truncations in the absence of the endogenous gene. Spatio-temporal..., allowing for clearer characterization of the location, morphology, and circuit mapping of a targeted...
  13. How-to: 5 Steps to a Great Panel Discussion

    Type
    Blog Post
    Published
    Oct. 22, 2014, 1:57 p.m.
    ... about making sure the audience is interested, educated and talking as a result of the content. Here are...contribute. The moderator should identify the funny, provocative or interesting stories that will make for a fun...sure all your panelists have the correct date, location and parking information and remind them about ...
  14. Tips to Make the Most of a Scientific Conference

    Type
    Blog Post
    Published
    May 23, 2019, 12:26 p.m.
    ...instances. If your poster material is nearing publication, consider uploading your work to a preprint server...time to meet. Some conferences may also have a dedicated app with a social media component, but if it doesn...other posts on scientific sharing, scientific communication, and scientific networking Learn how to set ...
  15. Transferable Skills: Negotiation

    Type
    Blog Post
    Published
    March 3, 2022, 2 p.m.
    ...fingers or Ethiopian?) to where you are going on vacation (New York City or Hawaii?). So how can you approach...been: A job offer conflicts with a pre-planned vacation I’m looking forward to. How can I negotiate my... I’m excited while still being able to take my vacation? I want to learn more about a different area of...
  16. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

    Type
    Blog Post
    Published
    Dec. 10, 2020, 1 p.m.
    ...and quiescent, post-mitotic mammalian cells. Applications of CRISPR delivery by adenoviral vectors Since...Strategies for Tissue-Specific Targeting. In: Applications of viruses for cancer therapy. Elsevier, pp ...Holkers M, Maggio I, Henriques SFD, Janssen JM, Cathomen T, Gonçalves MAFV (2014) Adenoviral vector DNA...
  17. Antibodies 101: Conventional vs Spectral Flow Cytometry

    Type
    Blog Post
    Published
    Aug. 3, 2023, 1:15 p.m.
    ... tumors, and moreso than other methods, the identification and isolation of rare cell types. In recent...complexity index ranges from 0-1, with a value of “0” indicating those markers are completely distinct from one...one another, and a value of “1” indicating those markers are identical and completely indistinguishable...
  18. Of Myc and Men

    Type
    Blog Post
    Published
    Jan. 19, 2023, 2:15 p.m.
    ...used in way more applications.   Fig. 1 Making a Protein Tag (Abridged) (1) Locate a promising monoclonal... by its antibody without additional chemical modification steps and when the epitope was within the tagged...
  19. AAV Vector Quality Control: Going the Extra Mile with NGS

    Type
    Blog Post
    Published
    Sept. 12, 2017, 1:44 p.m.
    ...These impurities cannot be removed during the purification step because they are inside the virus itself...very low concentration. So how do we make sure to catch all of these potential mishaps before distributing...Guerin et al., 2020).  In addition to genome identification, we developed custom open-access Python scripts...
  20. Cloning Mammalian Cells with the Agarose Method

    Type
    Blog Post
    Published
    Sept. 7, 2017, 12:17 p.m.
    ...to rapidly punch out cell clones with sterile truncated pipet tips. Indeed, an experienced operator can...wiped down with 70% ethanol, and a box of sterile truncated pipet tips (USA Scientific #1011-8410) is also..., and making sure we always maintain a backup replicates of each clone in case of contamination. We do...
  21. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    Published
    Feb. 4, 2025, 2:15 p.m.
    ...This reduces the chance of integration at random locations that could cause deleterious effects. It is important...multi-plasmid system, where you have one AAV vector dedicated to expressing Cas9, while the other houses the...integration into CRISPR-induced DNA breaks. Nature Communications, 10(1). https://doi.org/10.1038/s41467-019-...
  22. Which Fluorescent Protein Should I Use?

    Type
    Blog Post
    Published
    May 20, 2014, 2:06 p.m.
    ... to be considered when choosing an FP: Unique categories of fluorescent proteins Photoactivatable / Photoconvertible... used are GECIs - genetically encoded calcium indicators (e.g. GCaMP). Others include: pHluorin & pHTomato.... al. (2010) “Fluorescent proteins and their applications in imaging living cells and tissues”  Physiol...
  23. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    Published
    Oct. 4, 2018, 12:44 p.m.
    ...is only effective when sgRNAs target a specific location on the gene. For CRISPRa, sgRNAs were targeted...Calabrese pooled library and lentiviral prep here! Applications for the Root and Doench CRISPR libraries Overall...et al. "A protein-tagging system for signal amplification in gene expression and fluorescence imaging....
  24. Plasmids 101: Choosing an Antibiotic Resistance Gene

    Type
    Blog Post
    Published
    Oct. 10, 2023, 1 p.m.
    ...common antibiotic resistance genes and which applications are best (or worst) for each antibiotic. The...is expensive (relative to amp), and for some applications, the benefit it offers is marginal. Fortunately...antibiotic resistance ultimately comes down to your applications and needs. The more niche and specific your ...
  25. AAVs in Retinal Gene Therapy

    Type
    Blog Post
    Published
    July 31, 2018, 12:55 p.m.
    ... time advances in human genetics led to the identification of several disease-causing genes, including... But it is the hard work and persistence of a dedicated team of scientists led by Dr. Jean Bennett (UPenn...-1250015778 7. Yu W and Wu Z., 2018. In vivo Applications of CRISPR-Based Genome Editing in the Retina...
  26. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    ...in bacteria and extracted with common protein purification methods. Read on to learn more about nanobodies..., Alexa Fluor 568, or Alexa Fluor 647 before application to the sample. Staining with this multi-color...PubMed PMID: 29263082 Find plasmids from this publication at Addgene. 2. Bates, M., Böhning, M.I., Chug...
  27. The Importance of a Fun Workplace: Company Culture at Addgene

    Type
    Blog Post
    Published
    Sept. 3, 2015, 2:30 p.m.
    ...be an obvious one, but don’t make things too complicated for yourself (especially if you are the sole ...sole event planner)! If you have a very intricate itinerary, there is a higher likelihood that something ...Delegate- it will save you time and sanity!    10. Communicate Make sure people know that there is something...
  28. To Codon Optimize or Not: That is the Question

    Type
    Blog Post
    Published
    Nov. 12, 2020, 2:15 p.m.
    ...folding and stability, change post-translational modification sites and even affect protein function (Mauro... AP, Bilen B, Zavolan M (2013) Analysis of CDS-located miRNA target sites suggests that they can effectively...synonymous codon usage bias, and its potential applications. Nucl Acids Res 15:1281–1295 . https://doi.org...
  29. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    Published
    July 7, 2020, 1:15 p.m.
    ...2019). TREE is a real-time, fluorescent based identification system for the isolation of base-edited cell...to BFP Conversion: A Versatile Assay for the Quantification of CRISPR/Cas9-mediated Genome Editing. Molecular...Harris RS (2018) A fluorescent reporter for quantification and enrichment of DNA editing by APOBEC–Cas9...
  30. An Inside Look into Addgene's Dev Team

    Type
    Blog Post
    Published
    Jan. 23, 2020, 2:45 p.m.
    ...diverse group of ethnicities, cultures, genders, educational, and professional backgrounds. Sometimes this... information. It is quite possible that the clarifications lead to the story being scrapped or broken ...While writing the code, we may need additional clarification and again we collaborate with the Product Team...
  31. Save Time with Transient Plant Leaf Transformations

    Type
    Blog Post
    Published
    July 25, 2019, 12:03 p.m.
    ...vincristine, are regulated in the medicinal plant, the Catharanthus roseus (Figure 1). The ultimate goal of our ...and a vacuum is applied with a vacuum bell or desiccator. Successful infiltration can often be seen by...expression method for analyzing gene function in Catharanthus roseus seedlings." Frontiers in plant science...
  32. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...          The artificially evolved adenosine deaminase catalyzes the conversion of a target ‘A’ to ‘I’ (inosine... optimize base editing efficiency based on the location of the ‘A’ relative to the protospacer adjacent...Choose a base editing platform depending on the location of your target base in the protospacer sequence...
  33. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    Published
    Sept. 13, 2018, 1:55 p.m.
    ... potential control, and provide evidence that truncated gRNAs have improved specificity with only a small...toxicity in high-throughput screens." Nature communications 8 (2017): 15178. Pubmed PMID: 28474669. Pubmed...Improving CRISPR-Cas nuclease specificity using truncated guide RNAs." Nature biotechnology 32.3 (2014):...
  34. Bioinformatics at Addgene

    Type
    Blog Post
    Published
    July 14, 2022, 1:15 p.m.
    ... from depositing laboratories and associated publications, but our quality control (QC) standards have...such as 96-well microplates, and thanks to our dedicated product and development teams, frequent updates...can be easily shared with others without any complicated setup. We created, tested, and debugged each ...
  35. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...experimental design and its potential for clinical applications. Specifically, efficacy rates of Cas7-11 were...place, while increasing the number of potential applications. But they weren’t done engineering quite yet... at the bench and potentially in therapeutic applications. The potential of CRISPR has yet to fully taken...
  36. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    Published
    Nov. 19, 2020, 2:15 p.m.
    ...detrimental as too little, resulting in MECP2 duplication syndrome or Rett Syndrome, respectively. One ...Efficient and Precise CRISPR/Cas9-Mediated MECP2 Modifications in Human-Induced Pluripotent Stem Cells. Front..., Hector RD, Cobb SR, Bird A (2017) Radically truncated MeCP2 rescues Rett syndrome-like neurological ...
  37. Neuronal labeling with Spaghetti Monster

    Type
    Blog Post
    Published
    Aug. 14, 2018, 12:42 p.m.
    ...controlled by collections of neurons that are intricately wired into circuits through synaptic connections...photostable than GFP. In addition, antibody-based amplification of their signals is weak and increases background...more HA tags. 4. High-resolutions microscopy As indicated above, smFPs can be used with conventional microscopes...
  38. Transferable Skills Guide: External Collaborations

    Type
    Blog Post
    Published
    April 19, 2018, 1:25 p.m.
    ...hesitation to ‘approach strangers’ and learn how to communicate outside my scientific expertise. Organizing a...will lead! Read our blog post about fostering communication in remote collaborations! Stay in touch: Maintaining...connection is to make sure you keep open lines of communication with colleagues who move on to new organizations...
  39. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    Published
    Nov. 10, 2016, 3:30 p.m.
    ...Microbes (bacteria included) are very skilled at the delicate art of survival. Existing virtually ubiquitously...of intentions. The take-home? Always take your medication as prescribed. How do we know which bacteria ... is passionate about health equity, science communication, and public health.     References 1. O'Neill...
Showing: 561 - 600 of 821 results