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We narrowed to 802 results for: Eng

Showing: 421 - 440 of 802 results

  1. Droplet Digital PCR for AAV Quantitation

    Type
    Blog Post
    ...generating the standard curve for qPCR can be challenging to get right. Here at Addgene, we use a linearized...24328707. PubMed Central PMCID: PMC3991984. Song, Neng, et al. "Detection of circulating Mycobacterium ...droplet digital PCR for vaccine evaluation in challenged monkeys and TB diagnosis." Emerging microbes ...

  2. Introducing Addgene's New Search - Find Plasmids More Easily For Your Research!

    Type
    Blog Post
    ...best plasmid for your research can be a daunting challenge. With over 80,000 deposited plasmids from around...That’s why we’ve built a new and improved search engine to help make this task a faster, easier, and frustration-free...sure you’ll find Addgene’s newly launched search engine results much better. Here, I wanted to find a specific...

  3. CRISPR 101: Targeting RNA with Cas13a (C2c2)

    Type
    Blog Post
    ...pyogenes (SpCas9), is truly an exceptional genome engineering tool. It is easy to use, functional in most species...bacteria) Cas13a targeting with a single crRNA The Feng Zhang lab used Cas13a from Leptotrichia shahii (...cleavage with spacers from 20-28 nucleotides in length and does not require a specific PFS, making it ...

  4. Changing Labor Laws Bring Increased Postdoc Wages

    Type
    Blog Post
    ...of 340 institutions with postdocs in science, engineering and health from the NSF’s 2014 Graduate Student...what they are doing, however, may face greater challenges. Current salary information that we have been...current postdoctoral appointments may shorten in length; that postdoc salaries will have to double at some...

  6. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

    Type
    Blog Post
    ...share all of these new organisms continues to be challenging. Organism specific viral vector systems would...thus making progress on the NSF “G to P grand challenge.” Creating a productive, new scientific community...not just wait for papers to be published, but to engage in ongoing, real-time dissemination of information...

  7. Hot Plasmids - August 2020

    Type
    Blog Post
    ...infection (CRISPR-READI) enables genome engineering using HDR donors lengths up to 4.9 kb. Find the plasmids...indicator jGCaMP7, that are optimized for excitation wavelengths above 1,000 nm and enable two-color imaging with...

  8. CRISPR 101: Which Cas9 Do I Choose for My CRISPR Experiment?

    Type
    Blog Post
    ...genetic knockout  Knock-out cells or animals are engineered by introducing Cas9-mediated frameshift mutations...for PAM flexibility. Fig. 2: Prime editor engaging target DNA. The reverse transcriptase polymerizes...Unconstrained genome targeting with near-PAMless engineered CRISPR-Cas9 variants. Science (80-. ). 368, 290...

  9. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    ...ICE on Synthego’s blog. CRISPR-based genome engineering has revolutionized the gene editing field by ...tool is part of Synthego’s full stack Genome Engineering Solutions, which also includes our CRISPR knockout...Browse our CRISPR featured topic page xCas9: Engineering a CRISPR Variant with Pam Flexibility RNA Editing...

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

    Type
    Blog Post
    ...blog post). Optimizing FLP FRT through smart engineering Different FLP versions – making FLP efficient...prevented. The loxP and FRT target sites have been engineered to avoid this re-inversion issue. It became possible...of the asymmetric target site core but its 8 bp length that is critical for Cre and FLP function. Because...

  11. An Integrin Antibody Toolkit from IPI

    Type
    Blog Post
    ...and significance, these receptors have proved challenging to study. Cells often express multiple integrins...affinity. This extended-open state is key to strengthening ligand binding, mediating cell adhesion and ...adhesion. The results surprised the investigators, challenging the long-held belief that αVβ3 would be the most...

  13. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

    Type
    Blog Post
    ... This test can be performed in two steps for challenging samples as in Two-Step-SHERLOCK or in a fast,...Highlights: To detect non-PAM regions, PAM can be engineered into the primers. This method does not depend.../doi.org/10.1101/2020.04.07.028167 Broughton JP, Deng X, Yu G, Fasching CL, Servellita V, Singh J, Miao...

  14. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    ...introduces a ssDNA nick, a dsDNA break, or is engineered not to cleave DNA and instead activates/represses...acknowledged as a potential limitation in a study. Strength in numbers If you assess your off-target frequency...Off-target effects in CRISPR/Cas9 gene editing. Front Bioeng Biotechnol. 2023 Mar 9;11:1143157. doi: 10.3389...

  15. How to Design Your gRNA for CRISPR Genome Editing

    Type
    Blog Post
    ...technology has made it easier than ever both to engineer specific DNA edits and to perform functional screens...really due to the intended edit rather than some passenger variant that came along with the single cell clone...development of SaCas9, NmeCas9, Cas12a enzymes, and engineered variants thereof offers additional PAM options...

  16. Plasmids 101: Dimers and Multimers

    Type
    Blog Post
    ...12259: pMD2.G (depicted on the left) is ~5.8 kb in length. The plasmid can exist on as a dimer, depicted ...tandem, resulting in a plasmid that is twice the length of the monomer (~11.6 kb). Image generated by SnapGene...and fed-batch fermentation processes. Biotechnol Bioeng. 2009 Aug 15;103(6):1129-43. doi: 10.1002/bit.22347...

  17. Important Considerations When Using AAVs

    Type
    Blog Post
    ...Preps at Addgene 2) Comparison of genetically engineered receptors (i.e. chemogenetics vs. optogenetics...transduction efficiency, and safety profiles should strengthen its appeal for the scientific and medical communities...techniques: exploiting the offspring of genetic engineering." Journal of neuroscience methods 235 (2014):...

  18. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    ...that code for surface proteins. One of the first challenges with a custom screen approach is to identify ...PMC4744125. 3. Sanjana, Neville E., Ophir Shalem, and Feng Zhang. "Improved vectors and genome-wide libraries..., Raj, et al. "Unraveling CRISPR-Cas9 genome engineering parameters via a library-on-library approach....

  19. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    ...then flow cytometry can help you overcome these challenges and make these types of experiments easier and...fluorescent signal that is captured by detectors. The strength of the emitted photons varies from cell to cell...fluorophores Fluorescent antibodies get around the challenges of fluorescent protein fusions by binding to ...

  20. Special Delivery: Fluorophore Targeting for FRET Studies

    Type
    Blog Post
    ...enabling a broad spectrum of donor fluorescence wavelengths for FRET experiments. However, remember that,...amino acid at a stop codon (often amber i.e. UAG) engineered into a desired site. During translation, the ...molecules to each Cy dye, as well as by extending the length of the histidine tag from 6 to 10 residues. While...
Showing: 421 - 440 of 802 results