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We narrowed to 466 results for: cat.3

Showing: 161 - 180 of 466 results

  1. The Importance of High Titer for AAV Transductions

    Type
    Blog Post
    Published
    March 1, 2018, 2:11 p.m.
    ...resulted in a roughly 6-fold increase in expression [3, Figure 2]. Note how expression increases exponentially...PMID: 18500252. PubMed Central PMCID: PMC2574934. 3. Zingg, Brian, et al. "AAV-mediated anterograde transsynaptic... Protocols for Work with Virus Watch Our AAV Purification Video ...

  2. Cancer, Inflammation and Immunity - Harnessing the Body’s Defenses to Fight Cancer

    Type
    Blog Post
    Published
    July 6, 2017, 1:59 p.m.
    ...some impressive videos of these interactions (Ref 3). You can find useful tips on in vivo imaging in our...Research 9.12 (2016): 895-905. PubMed PMID: 27913448. 3. Cai, En, et al. "Visualizing dynamic microvillar ...Immunosurveillance and Defense With increasingly sophisticated visualization techniques it is possible to follow...

  3. Back to Bacteria: CRISPR gRNA Multiplexing Using tRNAs

    Type
    Blog Post
    Published
    June 2, 2015, 6:06 p.m.
    ...no addition of nucleotides to the 5’ spacers. The 3’ ends were modified slightly with either a 1-7 base...constructs, transcript levels of PTG1 and PTG2 were 3 and 31 times higher, respectively. In rice protoplasts...biological pathways;  to observe a phenotype, the modification of multiple genes is often necessary. Guide ...recognition and cleavage. This sequence flexibility indicates that gRNAs could be incorporated into these constructs...the 5’ end. PTG construct schematics. Scissors indicate cleavage sites. After confirming gRNA cleavage...) How many loci can Cas9 modify? To test the application of this system to gRNA multiplexing, Xie et al...deletion with 4-20% frequency at the four loci, indicating that Cas9 can be guided to at least 8 distinct...

  4. 7 Tips to Secure a STEAM Internship This Summer

    Type
    Blog Post
    Published
    Feb. 2, 2021, 2:15 p.m.
    ... cover letter can be found on the Addgene blog.   3. Personal statement brilliance In addition to sending... Letters of recommendation wisdom  Reach out to 2-3 individuals in your professional circle to vouch for...your application a whole week before the deadline. The day of submission, review your application with... their dream.  To help students focus on the application process, and simplify access to academic resources...Scrutinize every opportunity prior to starting an application to assess your eligibility, interest, and career... detailed. Beyond the resume, a cover letter communicates your interest in a specific program, and institution...February represent peak season for internship applications. Thus these noble individuals are inundated ...

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

    Type
    Blog Post
    Published
    June 20, 2017, 2:30 p.m.
    ... the pH change caused by storage on dry ice (Fig. 3). However, 30 seconds was not sufficient to prevent... was a substantial reduction in infectivity after 3 weeks of exposure to pH 5.1 (Potter et al., 2014)....improve our shipment processes. After reading a publication describing how short term storage on dry ice ...medium, which is buffered and contains the pH indicator phenol red. We froze samples in a -80°C freezer...closed dry ice storage container for 48 hours (to replicate how our viruses are shipped), where they would...exposed to CO2/dry ice. All samples were tested in duplicate. What we found Not all tubes (or rather, not ... the samples were at the control pH of 7.4 as indicated by color (data not shown). What we did next: Venting...

  6. Advice for Starting a Biotech Company from a Grad Student turned Entrepreneur

    Type
    Blog Post
    Published
    July 10, 2014, 7:17 p.m.
    ...random-walk" of a budding startup, I asked Mike to outline 3 pieces that are essential to the biotech startup puzzle... anywhere. The team should initially consist of 2-3 individuals that are aligned in vision and outcomes...competitions. After much learning, the focus of the application was changed, but Sample6 still leverages the ...fit for this set of technologies, effectively communicating the advantages embodied, and driving the enterprise...He explained that entrepreneurs must clearly communicate their idea at various levels of complexity and...backgrounds how amazing their idea is. While communication styles in academia and industry vary drastically...biggest challenge during this time was learning to communicate effectively to non-scientific audiences. "There...

  7. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

    Type
    Blog Post
    Published
    Sept. 4, 2018, 12:53 p.m.
    ...modified from pSC101 with copy numbers ranging from 3-100 per cell, a stabilized promoter buffered against... expression levels returned to the baseline after 3 hours with the stabilized promoter while gene expression...rounds of replication are initiated before the cell has divided. This means that genes located near the...problems. Rapidly dividing cells initiate genome replication more than once per cell division and thus, genes...genes closer to the origin of replication will be overrepresented compared to those further away. As a...maximal gene expression near genomic origins of replication, the stabilized promoters created by Segall-Shapiro...the control of IPTG. Because RepA is a plasmid replication initiator protein, they could alter copy number...

  8. R Bodies: Membrane-Rupturing Microscopic Tools

    Type
    Blog Post
    Published
    April 14, 2016, 2:30 p.m.
    ... natural context or 3) be modified to extend at different pH levels. Domesticating R bodies We have shown...Protistology 48, 290–296 (2012). PubMed PMID: 22356923. 3. Polka, J. K. & Silver, P. A. A Tunable Protein Piston...actuators that could be used in a variety of applications. For example, you could use them to lyse cells...matrices) in response to pH changes. Beyond these applications, purified R bodies could also perform as actuators...PubMed PMID: 26814170. Find Plasmids from This Publication at Addgene 4. Petroni, G., Spring, S., Schleifer...

  9. Screening for Successful Genome Editing with Digital PCR

    Type
    Blog Post
    Published
    March 30, 2017, 2:30 p.m.
    ...“blind” to this very important difference (Figure 3). If you are interested in harnessing the power ... PubMed PMID: 27089539. PubMed PMCID: PMC4835065. 3. Mock, U., Hauber, I. & Fehse, B. Digital PCR to assess...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...

  10. Sharing is Caring: But How to Distribute Open Hardware?

    Type
    Blog Post
    Published
    Feb. 28, 2023, 2:15 p.m.
    ...provide problem-solving platforms.     Fig. 3: Different workflows involved in sharing open hardware... (2022). https://doi.org/10.1038/s41592-022-01602-3...convinced that most microscopy techniques can be replicated with commercially available consumer-grade components... tools has allowed the community to regularly replicate designs worldwide. Distributing hardware via globally...Hohlbein, et. al., 2022). A more open way of communicating in science brings stronger networking across...

  11. Hot Plasmids: Spring 2025

    Type
    Blog Post
    Published
    June 3, 2025, 1:15 p.m.
    ...recordings in primary visual cortex (V1) layer 2/3 (L2/3). B) Fluorescence from axonal boutons of neurons... the IPI Glypican Collection here! Figure 3: General glypican domain structure. Glypicans are ...Here's what you'll find in this post: Glutamate indicators with increased sensitivity and tailored deactivation...viral preps targeting interneurons Glutamate indicators with increased sensitivity and tailored deactivation...popular choice for a variety of synaptic imaging applications. Find iGluSnFR4 plasmids here! Aggarwal, A...., Iyer, R., … Podgorski, K. (2025). Glutamate indicators with increased sensitivity and tailored deactivation...DNA vector that contains everything needed to replicate inside a host cell but with space to insert your...

  12. Hot Plasmids: Summer 2024

    Type
    Blog Post
    Published
    Aug. 27, 2024, 1:15 p.m.
    ...workflow. B) Detail of spacer peptides (3HB: 11-nm 3-helix bundle; SAH: 60-nm single alpha helix) and target...optimized PASSIGE plasmids here!     Figure 3: Schematic of the PASSIGE strategy. First, twin prime.... When the prime editor releases the DNA, the two 3’ flaps containing the edited sequence anneal with ...beads through an assembly of biotinylated SpyTag-SpyCatcher linkers and spacer proteins ending with a GFP... (Figure 1). This enrichment streamlines the purification and minimizes sample loss while also supporting...scFvs for other targets or could be used for applications beyond cryo-EM.   Find plasmids for MagIC-Cryo-EM...interact with the air-water interface (AWI) before vitrification, they can be completely denaturated (left) or...

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

    Type
    Blog Post
    Published
    Sept. 19, 2017, 1:20 p.m.
    ... near-infrared photosensitizer. Nature Methods,13(3), 263-268. doi:10.1038/nmeth.3735. PubMed PMID: 26808669...PMID: 18706812. PubMed Central PMCID: PMC4445427. 3. Bulina, M. E., Chudakov, D. M., Britanova, O. V.,...generation when bound by the dL5** FAP.  The iodine-modifications also shift MG-2I’s excitation wavelength to ...FAP-TAP system works. Find the Plasmids from the Publication Here Light-induced cell ablation with MG-2I-dL5...

  14. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    ...Palindromic Repeats, in Pubmed returned 728 articles (3/12/2014). With so many options for CRISPR plasmid ...they also be targeted? A4: The Cas9 cuts 3–4 bp upstream of the PAM sequence. There can be some off-target...2013). As for target selection, we usually pick 3–6 guides around the region to find the most efficient...Zinc-Finger Nucleases. G3 Genes Genomes Genetics, 3(4), 657–664. https://doi.org/10.1534/g3.112.005439...with the newest CRISPR technologies and their applications can be exhausting. A quick search for "CRISPR... the target site sequence (protospacer+PAM) is located? If there are other PAMs in the region, will they...puromycin selection. You could then confirm this purification by performing a genotyping assay (such as Sanger...

  15. Treating Muscular Dystrophy with CRISPR Gene Editing

    Type
    Blog Post
    Published
    Jan. 26, 2016, 3:30 p.m.
    ...2015 Dec 31. pii: aad5725. PubMed PMID: 26721683. 3. Nelson CE, Hakim CH, Ousterout DG, Thakore PI, Moreb... some research in human embryos. Nature. 2015 Dec 3. doi:10.1038/nature.2015.18947 5. Siva K, Covello ... by zinc finger nucleases. Mol Ther. 2015a Mar;23(3):523-32. PubMed PMID: 25492562. PubMed Central PMCID...setting. CRISPR is often used for animal germline modification, to repair or add in disease-causing mutations...that AAV-CRISPR does not cause obvious germline modification, an important finding given the controversy ...Blog Learn How CRISPR Could Be Used to Treat Cataracts and Cystic Fibrosis Read How Homology Directed...

  16. Deep Dive: Statistical Tests (Comparisons)

    Type
    Blog Post
    Published
    March 7, 2023, 2:15 p.m.
    ...drug clinical trial, for example).   Fig. 3: Question flowchart for choosing an ANOVA/MANOVA statistical...positive is much higher than if you only look at 2 or 3 pairwise comparisons. Similar to family-wise error...for the nonstatistician: Part I. South Med J., 105(3): 126-130 (2012). 10.1097/SMJ.0b013e3182498ad5 Curran-Everett...tests  Statistical tests fall into two general categories: parametric and non-parametric. In this blog ... exist somewhere within your data; it does not indicate which groups the differences exist between. For...that matter. However, this is oftentimes an oversimplification. If your independent variables are affecting...

  17. Scientific Peer-review: Providing Critical and Kind Feedback and Advocating for Open Science

    Type
    Blog Post
    Published
    Aug. 8, 2019, 1:19 p.m.
    ... enhanced sodium accumulation in their roots and (3) development of tools for data analysis/visualization... to help decide whether work is suitable for publication in their journal. The early peer-review attempts...information that would prevent the study to be replicated or omission from the literature. I think that...Addgene.org Learn about depositing plasmids pre-publication Find molecular biology protocols Find eBooks ...

  18. Easi-CRISPR: Generating Knock-In and Conditional Mouse Models

    Type
    Blog Post
    Published
    April 5, 2018, 12:42 p.m.
    ...conventional gene targeting is lowered to about 2-3 months. But certain models remain more difficult to...into a zygote and obtain a knockout mouse in about 3 months. Image courtesy of Wenning Qin. Single-...cleavage right before the stop codon!  Figure 3: How to design a C-terminal insertion with Easi-CRISPR... allele To design a knock-in allele at a given location, you’ll need to design only a single guide and... out our CRISPR Guide Find Plasmids for Cas9 Purification Find CRISPR Plasmids for Mammalian Expression...

  19. Plasmids 101: The protein expression toolbox

    Type
    Blog Post
    Published
    Feb. 16, 2023, 7:05 p.m.
    ...for 1-3 days. There’s also a CRISPR for that! CRISPR interference (CRISPRi) targets a catalytically dead...most of the other mechanisms described. Fig. 3 dTag mechanism of protein degradation. Adapted from...

  20. 5 Steps to Writing Grant Proposals for Grad Students

    Type
    Blog Post
    Published
    Feb. 11, 2014, 12:13 p.m.
    ... previously funded grant application to see how funds were allocated. Step 3: Get feedback from your ...proposal successful. Typical proposals consist of 3 to 5 aims, with secondary milestones to meet along...the grant application process. When my PhD advisor first asked me to write a grant application due the ...the next round of applications. Step 5: Keep writing! Each written grant application builds upon the ... project grant application" by the NIH Still want more information on the application process? What types...advisor alone applies for these competitive grant applications; however, in some cases, your advisor may choose...writing, volunteered to take the lead on various applications throughout my graduate career, and helped receive...
Showing: 161 - 180 of 466 results