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Showing: 241 - 260 of 460 results
  1. Twenty Years of Sharing: Addgene's Viral Vector Service

    Type
    Blog Post
    Published
    July 30, 2024, 1:15 p.m.
    ... why they are the most commonly requested (Figure 3). Over 400 biosensors were distributed in 2023 alone... viral vectors that deliver GFP.   Figure 3: A) Cumulative AAV preps available at Addgene from...all, a delivery method. I would be remiss to talk about them without looking at what they’re delivering .... But in the years since, we’ve learned so much about what it takes to make these viral vectors not only...., 2016), video, educational resources, and collaborations, and will continue to do so, in the hopes that...leave a comment; or take our AAV survey. Learn more about GCaMPs and other tools developed through the GENIE...
  2. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    Published
    Sept. 10, 2024, 1:15 p.m.
    ... them. For intracellular targets, we usually test 3 different fix/perms (methanol, PFA-saponin, PFA-triton.... The approach we suggest is summarized in Figure 3. The principle is to confirm the antibody can detect...-use of an individual experiment.   Figure 3: Our recommendations for an approach that may be used...leukocytes. The file shared also contains information about the labeling pattern of several cell lines using...Laflamme, C., Virk, H., NeuroSGC/YCharOS/EDDU Collaborative Group, & ABIF Consortium. (2024). A guide to...
  3. Fueled by Coffee at #SfN14

    Type
    Blog Post
    Published
    Nov. 18, 2014, 7:15 p.m.
    ...conservative estimate. As a graduate student, I drank 3-4 cups of coffee a day, and I had colleagues who were...learn about all the amazing research being done with plasmids. I heard an impressive talk about the use...pulls off such an inspiring, thought-provoking, collaborative event – all while keeping the party going! At...scientists we've spoken with are excited and passionate about making such tools open-access. Though it is time...
  4. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    Published
    Sept. 13, 2018, 1:55 p.m.
    ...negative controls for genome-wide CRISPR screens; and 3) safe-targeting guides, which target genomic sites...PMID: 25513782. Pubmed Central PMCID: PMC4320685. 3. Fu, Yanfang, et al. "Improving CRISPR-Cas nuclease...following unanswered questions about CRISPR screen design. Unanswered questions about genome-wide CRISPR/Cas9...Morgens et al drew some generalizable conclusions about off-target activity, demonstrate safe-targeting ...
  5. Synthetic Biology, Artificial Chromosomes, iGEM & More - Interview with Tom Ellis

    Type
    Blog Post
    Published
    Nov. 29, 2017, 2 p.m.
    ...startups, and real applications of SynBio. Chapter 3: Synthetic biology as the engineering of biology at...synthetic yeast chromosome. Listen to learn more about Dr. Ellis, synthetic biology, synthetic chromosomes...Additional Resources from the Addgene Blog Learn about the Synthetic Biology Education Nonprofit BioBuilder...BioBuilder Plasmids 101: Golden Gate Cloning Learn About Working at a SynBio Startup in Our Interview with...
  6. Addgene's Website Update

    Type
    Blog Post
    Published
    April 8, 2024, 2:15 p.m.
    ... without scrolling up and down the page.  Figure 3: The Education & Tools menu Further down What happens...straight from the new search bar, but the menu just above it can help you quickly and easily navigate to educational...down? You’ll find Blugene, as well as information about Addgene, our mission, links to our deposit, request...
  7. Grad School Advice Part 1: Picking a Lab and a Project

    Type
    Blog Post
    Published
    Sept. 1, 2016, 2:30 p.m.
    ...:02 : Niroshi and Ben introduce themselves 2:03 - 3:22 : How did you end up becoming a graduate student...graduate school community to help keep you excited about coming into lab even when things get tough in the...
  8. An Introduction to Adenovirus

    Type
    Blog Post
    Published
    Oct. 3, 2023, 1:15 p.m.
    ...transfer plasmid with the E1 and E3 (Early 1 and Early 3) genes deleted. These genes’ functions are rescued...Degeneration in Tissue Culture. Proc Soc Exp Biol Med. 84(3), 570–573. https://doi.org/10.3181/00379727-84-20714...this introduction gives a sense of what AdVs are about – and we hope that it inspires further use of existing...
  9. QC Sequencing Technologies at Addgene

    Type
    Blog Post
    Published
    July 15, 2025, 1:15 p.m.
    ...from the synthesis-based sequencing methods (Figure 3). It uses (aptly named) “nanopores” that are attached...based on these characteristic drops. Figure 3: Overview of Nanopore sequencing technology. Created...sequencing was considered the gold standard until about 2008 when a new, higher-throughput sequencing-by-synthesis...
  10. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

    Type
    Blog Post
    Published
    Sept. 28, 2020, noon
    ...Originally published Mar 3, 2016 and last updated Apr 13, 2021 by Will Arnold. Although CRISPR systems...a subsequent curing protocol that requires only 2-3 hours incubation. E. coli and T. citrea scarless editing...the QCascade DNA-targeting module with the crRNA, (3) three transposase proteins, and (4) the donor DNA...CRISPR Featured Topic Page Learn more about Cpf1 Find out about CRISPR Multiplexing Resources on Addgene.org...coli and other bacterial species. Read on to learn about the tools available for bacteria and some of the...that can be used in this way. As described in the above CRISPRi section, the Marraffini Lab published a ...as a collection of organisms, their genes, and metabolic processes, occupying the gut. Many human diseases...
  11. Delivery Methods for Generating iPSCs

    Type
    Blog Post
    Published
    April 17, 2018, 1:37 p.m.
    ...228, no. 2 (2012): 267-75. PubMed PMID: 22767332.  3. Kim, Dohoon, Chun-Hyung Kim, Jung-Il Moon, Young-...PubMed PMID: 19337237. PubMed Central PMCID: 2677165. 3. Jia, Fangjun, Kitchener D. Wilson, Ning Sun, Deepak... deriving human iPS cells." Nature Methods 7, no. 3 (2010): 197-99. PubMed PMID: 20139967. PubMed Central...methods do you have experience using? Let us know about your iPSCs experiences in the comments below! References...Additional Resources on the Addgene Blog Learn about Methods to Reprogram Peripheral Blood Cells Check...
  12. A Conference By Postdocs For Postdocs: Future of Research

    Type
    Blog Post
    Published
    Sept. 2, 2014, 3:05 p.m.
    ...on the future of the scientific endeavor October 2-3, 2014 Boston University Jacob Sleeper Auditorium, ...doing science in some form? There is a lot of talk about the state of scientist training in the US and around...
  13. 6 Tips for Analyzing and Troubleshooting Sanger Sequencing Results

    Type
    Blog Post
    Published
    June 26, 2014, 2:23 p.m.
    ...individual, sharp and evenly spaced peaks …like these…. 3. Expect to get 500-700 bases of clean reliable DNA...and troubleshooting your DNA sequencing results Above (top right corner of this post) is an example of...
  14. Quick, Versatile Plant Transgenesis with GreenGate Plasmids

    Type
    Blog Post
    Published
    Jan. 23, 2014, 3:23 p.m.
    ...Method with High Throughput Capability." PLoS ONE. 3(11): e3647 (5 November 2008).  ...protein,” he says. “There is nothing you can do about it but be gentle. If it no longer works, just trash...
  15. A Control for All Seasons

    Type
    Blog Post
    Published
    Oct. 5, 2023, 1:15 p.m.
    ...with an isotype-matched control.      Figure 3: A preimmune serum control addresses situations where....” British Journal of Pharmacology, vol. 175, no. 3, Wiley, 19 Jan. 2018, pp. 407–411. Crossref, doi:10.1111...subjected to the experimental condition. In the example above, a negative control could be a third group of mice...in the experimental protocol. In the experiment above, you could repeat the tau western blot several times...Baseline secondary signaling levels In addition to the above-mentioned safeguards, you’ll need to test the secondary...Flow cytometry In addition to the controls listed above, viability and compensation controls are recommended...technique before starting. For more information about antibodies and antibody-based experiments, check...
  16. Stem Cell Models for Disease & Open Science: Interview with Darrell Kotton

    Type
    Blog Post
    Published
    July 7, 2017, 1:32 p.m.
    ... MD but later got obsessed with research. Chapter 3: How all basic research ends up being translational...promote scientific sharing. Listen to learn more about Darrell, his research, and his focus on open science...Medicine and in the Department of Pathology and Laboratory Medicine. He attends in the Medical Intensive...NIH-funded Principle Investigator in the Kotton Laboratory and is the founding Director of the Center for...Podcast.     Additional Resources from Addgene Learn about Retinal Gene Therapy from Connie Cepko Find Plasmids...Plasmids from the Kotton Lab Learn more about Stem Cells ...
  17. Hot Biosensors 2022: Year-End Roundup

    Type
    Blog Post
    Published
    Dec. 6, 2022, 2:15 p.m.
    ...available as viral vectors (here and here).  Figure 3: JEDI-2P was identified from a high-throughput screen...microscopy. Cell. 2022 Aug 16. pii: S0092-8674(22)00916-3. doi: 10.1016/j.cell.2022.07.013 pYtags illuminate...screen (Koveal et al. 2022). Lactate is a key metabolite in glycolysis, so this sensor will be a valuable...valuable tool to study cellular physiology and metabolism under various conditions. LiLac has improved response...going viral! In addition to the viral preps noted above for iGluSnFR3 and JEDI-2P, several biosensors already...innovation next year! Did we miss any? Let us know about your favorite new biosensor plasmids in the comments...
  18. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...perform downstream characterization of, isolating 2 or 3 distinct clones to perform key experiments on is a...CRISPR-Cas System in Gene Editing. Mol Ther. 2021 Mar 3;29(3):937-948. doi: 10.1016/j.ymthe.2020.11.009  Guo C,...is an off-target effect. Should I be concerned about off-target effects? Depending on your experimental...this could be a huge concern, or nothing to worry about all. Let’s consider several scenarios below for ...Predicting off-target events As mentioned in the above section, there are gRNA softwares available which...diligence to ensure they are indeed a non-issue. Above we mentioned how to predict off-target frequency...
  19. Addgene's Top Blog Posts from 2020

    Type
    Blog Post
    Published
    Dec. 29, 2020, 2:15 p.m.
    ...working with RNA and extracting RNA without a kit. 3. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR... highlighted reagent repositories and other collaborative efforts in the scientific community to speed...store my plasmid in TE, Tris, or water? And what about temperature? Find the details in this blog post....dominates DNA quantification discussions, but what about the other methods to quantify DNA? Here we cover...Incompatibility by Leah Schiesow If you're thinking about hosting multiple plasmids in one cell, it might ...
Showing: 241 - 260 of 460 results