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We narrowed to 519 results for: abo.2

Showing: 121 - 140 of 519 results

  1. Predicting Adverse Reactions to Monoclonal Antibody Drugs

    Type
    Blog Post
    Published
    Feb. 13, 2024, 2:15 p.m.
    ...various components of the immune system. Figure 2: In-vitro models for immunogenicity prediction of ...drug reaction. This system would somewhat act like a 2-step verification. All approaches have their own limitations...Future Enhancements. Frontiers in drug discovery, 2, 952326. https://doi.org/10.3389/fddsv.2022.952326Joubert...determining the T-cell epitopes that will likely bring about unwanted immunogenicity. The 3-D models can be applied...limitations. Using methods together can inform decisions about in vivo application and clinical testing. This would...to drugs: adverse reaction terminology. WHO Collaborating Centre for International Drug Monitoring, Uppsala...

  2. Light Sheet Fluorescence Microscopy

    Type
    Blog Post
    Published
    July 16, 2015, 2:30 p.m.
    ...Carballosa, et al, (2015) eNeuro, March/April 2015, 2(2) e0001-15.2015. Pubmed. Resources: http://openspim.org...orthogonal-plane fluorescence optical sectioning (OPFOS) (2). Arne Voie, David Burns and Francis Spelman focused...in LSFM. In LSFM the laser light sheet, typically 2-6  microns, illuminates only one thin plane of the...protein (GFP) (6).   The Dodt and Frank Bradke laboratories later developed the 3DISCO (3-dimensional imaging...

  3. Negative Can Be Positive: Open AAV Data with Addgene

    Type
    Blog Post
    Published
    Sept. 6, 2022, 1:15 p.m.
    ...indicated they wanted to see more negative data (Figure 2.) At the same time, when scientists who support open...is not only housed, but encouraged.    Fig. 2: Results from a survey conducted by Addgene in 2021...detailed methods and image descriptions, a minimum n = 2, and well labeled high- and low-magnification images...gene therapy trials. Human Gene Therapy Methods, 26(2), 71–76. https://doi.org/10.1089/hgtb.2015.040 Initiative...asked why they don’t share, many express concern about sharing negative data they cannot explain, perhaps...

  4. RNA Interference in Plant Biology: New Tools for an Old Favorite

    Type
    Blog Post
    Published
    Oct. 27, 2020, 1:15 p.m.
    ... analogs such as 2-fluoroadenine (2-FA), organisms with functional APT will convert 2-FA to cytotoxic ...selection of plants undergoing RNAi, and LIIbeta F 1-2 RNAi, which allows assembly of intron-spliced hpRNAs...nucleotides, resulting in death. In the presence of 2-FA, potent gene silencing of APT is required for survival... “transitivity,” calls into question any claims about specificity of a given RNAi technique. While transitivity...conceptually similar to the microRNA precursor mentioned above and is a popular RNAi trigger in the mammalian research...substantial ways: variable silencing efficiency and labor-intensive processes to isolate RNAi plants. With...resource on the Addgene blog Browse our blog posts about plant biology Check out our CRISPR blog posts Resources...

  5. Fueled by Coffee at #SfN14

    Type
    Blog Post
    Published
    Nov. 18, 2014, 7:15 p.m.
    ... 60,000 cups of coffee per day if everyone drinks 2 cups per day – which would mean ~ 300,000 cups of ...working, and networking at SfN, remember there are only 2 days left for you to make the most of this great opportunity...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...

  6. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

    Type
    Blog Post
    Published
    Oct. 19, 2017, 1:54 p.m.
    ...FLP and Cre for additional control   Figure 2: Expression of a morphological marker (eYFP) and synaptic...Sternson. 2008. “A FLEX Switch Targets Channelrhodopsin-2 to Multiple Cell Types for Imaging and Long-Range ...PMID: 18614669. PubMed Central PMCID: PMC2593125. 2. Buchholz, F, P O Angrand, and A. Francis Stewart....The FLP Recombinase of the Saccharomyces Cerevisiae 2 Micron Plasmid Attaches Covalently to DNA via a Phosphotyrosyl... on the Addgene Blog Learn More about FLEX-vectors Learn More about Cre-Lox Check out Retrograde AAVs...expression have been developed. Read on to learn more about FLP-FRT, Cre-lox, and how combinations of FLP and...

  7. Important Considerations in Optogenetics Behavioral Experiments

    Type
    Blog Post
    Published
    Oct. 1, 2015, 2:30 p.m.
    ... will repeatedly nose-poke at the active hole [1, 2].    Place preference/place aversion also models reinforcement...spend most of its times in the opposite chamber) [2]. Laser activation is usually controlled automatically...two different ways 1) your hypothesis is wrong or 2) there is some problem with the technical implementation...PMID: 21716290. Pubmed Central PMCID: PMC3775282. 2. McDevitt, Ross A., et al. "Serotonergic versus nonserotonergic...of the important considerations you should think about when developing optogenetics behavioral experiments...scientific research is that the field benefits from collaboration and the exchange of ideas. The rapid spread ...versatility and standardization of genetic tools in the laboratory mouse, most optogenetics is performed in this...

  8. The Importance of High Titer for AAV Transductions

    Type
    Blog Post
    Published
    March 1, 2018, 2:11 p.m.
    ...drastically with lower titers. As you can see in figure 2, the expression from the 5x1011 titer was essentially... roughly 6-fold increase in expression [3, Figure 2]. Note how expression increases exponentially with...international 61.1 (2002): S9-S15. PubMed PMID: 11841606. 2. Schultz BR, Chamberlain JS. Recombinant Adeno-associated...diluting - if you end up concentrating your AAV above your desired titer and want to dilute it, err on...

  9. Addgene Depositors Get More Citations

    Type
    Blog Post
    Published
    April 20, 2017, 2:30 p.m.
    ... 1 2010 3 Nature  3.3% 10.5%   3.2  9.6 2 2010 167  Nature 3.3%  10.5%  3.2  534.1 3...Microbiology  1.6% 1.2%  0.75   125.3 In figure 2, you can see the full impact from using these weighted...plasmids deposited at Addgene still accrue on average 2 to 3 times as many citations as other papers in the... with plasmids deposited at Addgene – typically about four times as many as papers without plasmids deposited...

  10. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...Nature Cell Biology, 26(2), 294–304. https://doi.org/10.1038/s41556-023-01342-2 Koblan, L. W., Arbab, M...order to bind DNA, Cas9 requires (1) a guide RNA, (2) a complementary DNA sequence, and (3) a protospacer-adjacent...region of separate strands called an R-loop (Figure 2). This allows the guide RNA to base pair with the ...accessible on the outside of the enzyme. Figure 2: CRISPR R-loop. Created with BioRender.com. Base...), 35–40. https://doi.org/10.1038/s41587-020-0592-2 Additional Resources on the Addgene blog CRISPR 101...still isn’t over! Keep an eye out for our next post about base editing, where we’ll tackle transversion editors... 101: Cytosine and Adenine Base Editors Read about four base editor reporters CRISPR 101: Prime Editing...

  11. Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

    Type
    Blog Post
    Published
    Sept. 19, 2017, 1:20 p.m.
    ...fluorogen activating protein - dL5** in this case), and 2) a fluorogen (the TAP - targeted and activated photosensitizer...cells present 96 hours post treatment (see figure 2). Induced cell death was confirmed by TUNEL staining...PMID: 26808669. PubMed Central PMCID: PMC4916159. 2. Jacobson, K., Rajfur, Z., Vitriol, E., & Hahn, K.... in culture and in vivo.  Read on to learn more about this killer illumination technique! What is a photosensitizer...within the near-infrared (NIR) spectrum (>620 nm). Above is a brief schematic of how the MG-2I-dL5** FAP-...use MG-2I-dL5** with your research? Let us know about your experiences using photosensitizers in the comments... to Receive the Fluorescent Protein eBook Learn about Small Molecule Fluorophores Resources on Addgene.org...

  12. The time and cost required to make a plasmid

    Type
    Blog Post
    Published
    March 23, 2023, 1:15 p.m.
    ...2023 (and at closer to 2 million plasmids shared than not!), we think it’s about time we updated this post...time does it take to make a plasmid? Figure 2: Survey results from a Twitter poll run in 2023, n...go wrong, replace them for free. Plasmids ship out 2-3 days after ordering, making it a toss-up as to whether...cloning before you can start your experiment? What about all the reagents you need to order? Sometimes, it...dive deep into generating the data you’re excited about. When we were closing in on the one million plasmids...choose the right cloning method Find blog posts about scientific sharing here Download the Plasmids 101...

  13. A Practical Guide to Optimizing AAV DIO and FLEx Vector Expression

    Type
    Blog Post
    Published
    Nov. 2, 2021, 1:15 p.m.
    ...one of lox2272 sites will now be sandwiched between 2 loxp sites and is excised by Cre (Figure 1). This ...flank the transgenes (non-homologous pairs) (Figure 2.). They found that almost all off-target expression...exercise caution when using them.    Figure 2. Schematic diagram showing the mechanism of spontaneous... Tropism and Axonal Transport of AAV Serotypes 1, 2, 5, 6, 8 and 9 in the Mouse Brain. PLoS ONE 8:e76310... Pseudotyped with Viral Capsids from Serotypes 1, 2, and 5 Display Differential Efficiency and Cell Tropism...the most common concerns we get here at Addgene about this system is off-target or spurious expression...cells that don’t express Cre or Flp, what can we do about it?  Test the serotype and promoter The first step...

  14. Fluorescent CRISPR Reporters: SRIRACCHA and GEmCherry2

    Type
    Blog Post
    Published
    May 26, 2020, 1:15 p.m.
    ...lab found that H2B-GFP expressing cells exhibited a 2-4 fold increase in the number of endogenous indel ...Denham lab made several other small changes creating 2 other versions but these did not surpass GEmCherry2...fluorescence and in-frame fluorescence.  Figure 2: The GEmCherry reporter. Image from Højland Knudsen...off target effects. However, these methods can be labor intensive and quite time consuming.   As Cas9/gRNA...have been several systems to do this but most are labor-intensive, require multiple fluorescent proteins... Browse all of our CRISPR blog posts Find more about fluorescent proteins Get a refresher on CRISPR with...

  15. Quick Guide to Working with Drosophila Part 3: Genome Engineering in Flies

    Type
    Blog Post
    Published
    July 28, 2017, 1:30 p.m.
    ...immunofluorescent images like in this paper (2). Metabolic assays such as Seahorse can be employed to look...are many docking sites available for integration. 2. How soon would you like your flies ready for use?...PMID: 16547094. PubMed Central PMCID: PMC1526508. 2. H. Jiang,  et al. Cytokine/Jak/Stat signaling mediates...Additional Resources on the Addgene Blog Learn about Using Cre in Drosophila Read Other Genome Engineering...

  16. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ... working with is correct. It's also best to use 1-2 ug of the vector for digestion. PCR Design primers...plasmid; a starting point could be a molar ratio of 1:2 (plasmid:insert), but this parameter has to be optimized...colonies (5-10) and grow them in a small culture volume (2 or 3 ml) containing the corresponding antibiotic, ...they get old, they lose competency). If all the above is correct, you should probably have a second and...blog posts Read blog posts on plasmid cloning Read about different plasmid elements Resources on Addgene.org...

  17. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    Published
    July 20, 2021, 1:15 p.m.
    ...termed fluorescence activated cell sorting or FACS (2). By analyzing single cells instead of the population...expression. A routine flow cytometry experiment uses 2 or 3 different fluorescent colors each measuring a...distinct populations on a FSC versus SSC plot (Figure 2).  A user can then “gate” around the specific population...cell and T cell into distinct populations (Figure 2). An immunologist who studies B cells, might then ... B cells, plasma cells or others.   Figure 2: Due to differences in their size and complexity, ...biosafety cabinet with cloning rings or following labor-intensive limiting dilution protocols? If this sounds...fluorescent microscopy must be used. To learn more about the most suitable fluorescent microscopy technique...

  18. The Future of Research Symposium Boston 2015

    Type
    Blog Post
    Published
    Oct. 20, 2015, 2:30 p.m.
    ...Quotes taken directly from participants (summarized in 2) touched upon many problems in this area: “ [The] ...PMID: 24733905. Pubmed Central PMCID: PMC4000813. 2. McDowell, Gary S., et al. "Shaping the Future of ...A fair deal for PhD students and postdocs." Elife 2 (2013): e01139. Pubmed PMID: 24137543. Pubmed Central... the Jackson Laboratory for Genomic Medicine and a Senior Research Associate at the Labor and Worklife...increasing data collection about the scientific workforce, in particular about postdocs. Among other involvements...Research Symposium Boston 2015 – Academic Data and the Labor Market. For more information on the symposium as...generating too many trainees per PI” “Lack of awareness about how the system operates and functions” “Complete...

  19. Transferable Skills Guide: Cross-team Communication

    Type
    Blog Post
    Published
    Nov. 21, 2019, 1:53 p.m.
    ...discussed them in meetings and 2) creating a pictorial guide for our engineers (Fig. 2). Creating this guide was...communication has helped Addgene move from completing 2-3 large projects a year, on average, to completing...differently based on their audience. How you talk about your experiments to your PI, your colleagues, or...have cross-team projects within your own lab, collaborations with other scientists within and outside your...not happen in the lab, they have parallels to collaborative lab work. Corralling context and junking jargon...difficult to know what kind of plate they were talking about during the meetings. And “plate” certainly wasn’... a lot on context. New people in the lab or collaborators will not have the context you do, which means...

  20. How Dry Ice Affects Viral Vector Sample pH & How to Avoid It

    Type
    Blog Post
    Published
    June 20, 2017, 2:30 p.m.
    ...pH visible at the sample interface upon thaw (Fig. 2). Before thawing, all the samples were at the control...showed that AAV infectivity was not altered by a short 2-hour exposure to pH as low as 2.5 (Potter et al., ...Methods. 2013 Apr;10(4):278-9. PubMed PMID: 23538862. 2. Potter M, Lins B, Mietzsch M, Heilbronn R, Van Vliet...return the sample back to the original pH. What about putting it back in the freezer? We then tested whether...
Showing: 121 - 140 of 519 results