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Showing: 61 - 80 of 418 results
  1. Fluorescent Proteins 101: Luciferase

    Type
    Blog Post
    Published
    June 24, 2014, 3:59 p.m.
    ...resulting in the emission of photons. The most familiar bioluminescent organism for most people is the...luciferase as a genetic reporter in plant and mammalian cells. Luciferase assays have since become a gold... Japanese firefly(Luciola cruciate/lateralis)Italian firefly(Luciola italica)Southern Russian firefly...plasmid, which is then introduced into the desired mammalian, plant or bacterial cells. Expression of luciferase...
  2. 15 Years of Addgene: The Top 15 Plasmids

    Type
    Blog Post
    Published
    Jan. 8, 2019, 1:54 p.m.
    ...to deliver Cas9 and your gRNA of interest into mammalian cells. This vector was the top requested plasmid...) V2.0 - This plasmid from the Zhang lab is a mammalian vector that expresses both SpCas9 and your gRNAs...scrambled shRNA is used as a negative control for mammalian RNAi experiments.  Find the scrambled shRNA vector...2A-GFP (PX461). pSpCas9(BB)-2A-Puro (PX459) - This mammalian expression vector encodes both SpCas9 and your...
  3. A Practical Approach to Choosing the B(right)est Fluorescent Protein

    Type
    Blog Post
    Published
    June 1, 2017, 2:30 p.m.
    ...Determining practical brightness When a dish of mammalian cells is transiently transfected with a plasmid...in the fluorescence intensities of individual mammalian cells within the dish. This is caused by the stochastic...Another way to dodge cellular variation observed in mammalian cells is to tag an endogenous gene. By imaging...Mouridi et al (2017) and Heppert et al (2016). In mammalian cells this would be possible with CRISPR/Cas-based...
  4. What's New in CRISPR - November 2021

    Type
    Blog Post
    Published
    Nov. 18, 2021, 2:15 p.m.
    ...packaged into AAV particles for delivery into mammalian cells, especially when fused to effector proteins...for such AAV packaging, but their activity in mammalian systems has been in question. Three different ...this problem. A miniature CRISPR-Cas system for mammalian use Stanley Qi’s lab has developed a miniature...activation, base editing, and genome editing in mammalian cells. The “V4” version (named CasMINI) had the...
  5. A Look Back at One Year of Plasmid Sharing for COVID-19 Research

    Type
    Blog Post
    Published
    July 12, 2021, 1:15 p.m.
    ... reaction to detect SARS-CoV-2 nucleic acids. Mammalian targets During the 2003 SARS outbreak, Hyeryun...the virus interacts with human cells. Addgene’s mammalian target plasmids express these and other targets...important for SARS-CoV-2 entry into human lung epithelial cells (Biering et al., 2021). In their search...many expression systems: bacterial, yeast, and mammalian. These plasmids contain both untagged and tagged...
  6. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    Published
    March 31, 2016, 2:30 p.m.
    ...seems to couple termination with polyadenlyation. Mammalian expression plasmids are primarily used to create...create mRNA and the commonly used mammalian terminators (SV40, hGH, BGH, and rbGlob) include the sequence...commons.wikimedia.org/w/index.php?curid=17554393   Use of mammalian poly(A) signals in combination with certain viral... Julian Taylor-Parker...
  7. xCas9: Engineering a CRISPR Variant with PAM Flexibility

    Type
    Blog Post
    Published
    March 28, 2018, 6:52 p.m.
    ...Characterizing xCas9 in mammalian cells Hu et al. compared xCas9 activity with wt SpCas9 in mammalian cells, finding...improvements at NG and GAT PAMs. xCas9 3.7 Activity in Mammalian Cells Construct NGG PAM NGA PAM NGC ...out our CRISPR Guide Find CRISPR Plasmids for Mammalian Systems Learn about CRISPR History ...
  8. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ...readers may be less familiar with gene drives and their ramifications. Readers unfamiliar with academia’s ...of gravitational waves--a story I was much less familiar with as a biologist--as an example of “big science...technology.” As an Addgene vet of 12 years, I’m very familiar with the role our repository has played in these...
  9. MXS Chaining

    Type
    Blog Post
    Published
    Feb. 7, 2017, 3:30 p.m.
    ...genetic elements may differ (e.g., a set of various mammalian promoters), the same cloning procedure can be ...fluorescence imaging or flow cytometry applications in mammalian cells. The modules used in this method include... applications in flow cytometry approaches in mammalian cell culture systems (their original goal). Their... for Imaging and Flow Cytometry Approaches in Mammalian Systems. PLoS One. 2015 Apr 24;10(4):e0124958....
  10. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...set up, conducted and analysed with care to get reliable information. Although two-hybrid systems are a...target proteins in heterologous systems (e.g. mammalian proteins in S. cerevisiae). While this may ...alternative fungi (C. albicans, pC2HB) (7) and mammalian cells. If the problem is that your proteins are...for detecting protein-protein interactions in mammalian cells based on protein splicing. Anal Chem. 2001...
  11. Sonic Hedgehog? Sleeping Beauty? Learn About the Genes Behind Addgene’s Conference Room Names

    Type
    Blog Post
    Published
    April 2, 2019, 1:44 p.m.
    ...hedgehog (Nusslein-Volhard and Wiechaus, 1980). The mammalian hedgehog protein, sonic hedgehog (SHH) was named...non-viral system to integrate particular genes into mammalian genomes and easily disrupt gene expression to ...website for plasmids that contain tinman or the mammalian homolog Nkx2.5. We also have one plasmid, Addgene...origins of their names!    References Azpiazu, Natalia, and Manfred Frasch. "tinman and bagpipe: two homeo...
  12. Mesothelioma - Causes, Symptoms, and Treatment

    Type
    Blog Post
    Published
    Dec. 13, 2016, 3:30 p.m.
    ...post was contributed by the Mesothelioma Cancer Alliance. We have learned much about the causes of cancer...asbestos fibers cause inflammation, which can cause mesothelial cells to mutate and ultimately form cancerous...very well. The best option in such instances is palliative care, which helps patients manage the pain and...post was contributed by the Mesothelioma Cancer Alliance. Additional Resources on the Addgene Blog Find...
  13. Beyond the Blood Brain Barrier: PHP.B Enters the Central Nervous System Via the LY6A Receptor

    Type
    Blog Post
    Published
    July 23, 2019, 12:46 p.m.
    ...generation (F2) of outbred mice also showed a Mendelian inheritance pattern that suggested there was a... Knock out of Ly6a in primary C57BL/6J brain endothelial cells decreased transduction rates while overexpression...version of PHP.B, virus still reached the brain endothelial cells of these mice, although at lower levels...from Addgene. References Holmes, Christina, and William L. Stanford. "Concise review: stem cell antigen...
  14. To Codon Optimize or Not: That is the Question

    Type
    Blog Post
    Published
    Nov. 12, 2020, 2:15 p.m.
    ...expression in mammalian cells. This was the first codon optimized membrane protein expressed in mammalian cells...coli. Genes are also optimized for expression in mammalian cells. For example, Henry Lester’s lab optimized...Caenorhabditis elegans GluCl ion channel genes for mammalian cells dramatically improves expression levels....
  15. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...molecule that can bind antigen. While they may seem unfamiliar, scFvs are often the building blocks for engineering...expressed in bacteria, while mAbs generally require mammalian expression systems. scFvs are also small enough...scFvs? While it’s possible to produce scFvs in mammalian, yeast, plant, and insect cells, they are most...2012/980250  Bates A, Power CA (2019) David vs. Goliath: The Structure, Function, and Clinical Prospects...
  16. Plasmids 101: Using Transposons in the Lab

    Type
    Blog Post
    Published
    July 6, 2021, 1:28 p.m.
    ... has a close-to-random integration profile in mammalian genomes. SB is active in vertebrates and integrates... well as in vivo in yeast, plant, insect, and mammalian cells, including human cells. piggyBac is biased...transposase (hyPB) is ~10-fold more active in mammalian cells compared to the codon-optimized wild-type...)TTATAA(G/C)TNA. Tol2 can deliver 10-11 kB to mammalian cells without decreased efficiency, with a maximum...
  17. Typing CRISPR Systems

    Type
    Blog Post
    Published
    March 18, 2025, 1:15 p.m.
    ...effector and is able to target and edit RNA in mammalian cells. Type IV Type IV is the middle child (like...effector and are likely the class most people are familiar with. Class 2 CRISPR systems can be further broken.... Cas9 was the first to be adapted for use in mammalian systems, with the landmark publication in 2013...Loci in Integrative Conjugative Elements of Acidithiobacillia. The CRISPR Journal, 4(5), 656–672. https:...
  18. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...Differential cytosine editing between bacteria and mammalian cells Researchers in the Xueli Zhang lab were ...called a Glycosylase Base Editor, or GBE, for its reliance on the glycosylase UNG to crease abasic sites ...seemed to follow the same initial mechanism as in mammalian cells — by excising the freshly edited U bases...Huang, M. E., Qin, Y., Shang, Y., Hao, Q., Zhan, C., Lian, C., Luo, S., Liu, L. D., Zhang, S., Zhang, Y., ...
  19. Your Top Requested Plasmid in 2015!

    Type
    Blog Post
    Published
    Dec. 30, 2015, 3:30 p.m.
    ...deliver both Cas9 and your gRNA of interest to mammalian cells. It was designed to have increased lentiviral...libraries targeting both mouse and human cells are avaliable for distribution. To learn more about pooled library...Some Common Ways to Deliver CRISPR Plasmids to Mammalian Cells Resources on the Addgene Website Visit...
  20. Let There Be LITE Plasmids

    Type
    Blog Post
    Published
    Nov. 21, 2013, 3:56 p.m.
    ...and CIB1 – which they borrowed from Arabidopsis thaliana. The results are light-inducible transcriptional...those optogenetic controls, gene expression levels reliably increased in vitro by a factor of 10 to 20. A ... Silvana Konermann et al. "Optical control of mammalian endogenous transcription and epigenetic states...
Showing: 61 - 80 of 418 results