We narrowed to 573 results for: CHI;
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TypeBlog PostPublishedSept. 8, 2015, 2:30 p.m....Refactoring and optimization of light-switchable Escherichia coli two-component systems. Schmidl SR, Sheth... at Addgene. Synthetic biology: engineering Escherichia coli to see light. Levskaya A, Chevalier AA, ...Multichromatic control of gene expression in Escherichia coli. Tabor JJ, Levskaya A, Voigt CA. J Mol Biol...
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OCaMP: A New Calcium Indicator for Neural Imaging
TypeBlog PostPublishedAug. 19, 2025, 1:15 p.m....brightness, Less signal distortion from photoswitching or photobleaching Improved signal-to-noise ratio (SNR...% end_module_attribute %}{% module_attribute "child_css" is_json="true" %}{% raw %}{}{% endraw %}{% end_module_attribute... -
Fluorescent Proteins 101: Luciferases
TypeBlog PostPublishedJuly 22, 2025, 1:15 p.m.... luciferase reporters aren’t susceptible to photobleaching — they’ll keep emitting light as long as their...Sensitivity Higher Lower Background Lower Higher Photobleaching/phototoxicity Not susceptible Susceptible ...advantages of luminescent assays (low background, no photobleaching) but provides flexibility by pairing the luciferase... -
Luminescent Imaging with Nano-lanterns
TypeBlog PostPublishedMay 25, 2017, 2:30 p.m....can be affected by both autofluorescence and photobleaching. Researchers have long been interested in using... cells. As Nano-lanterns are not subject to photobleaching/phototoxicity, they successfully imaged multiple...applications. For long-term imaging, especially where photobleaching and phototoxicity are a concern, these constructs... -
Synthesized by Ginkgo Bioworks, Shared by Addgene: SARS-CoV-2 Plasmids for Many Expression Systems
TypeBlog PostPublishedMay 19, 2020, 1:15 p.m....samples, the rest will be put into a status we call “Archived.” This status allows us to store plasmids and ...These new processes have been instrumental in achieving our mission to help science move faster in the...Resources Page! References Fukushi S, Watanabe R, Taguchi F (2008) Pseudotyped Vesicular Stomatitis Virus... -
Back to Bacteria: CRISPR gRNA Multiplexing Using tRNAs
TypeBlog PostPublishedJune 2, 2015, 6:06 p.m....instead use a preexisting, conserved cellular machinery to process gRNAs. Hijacking tRNA processing to...plants. Yang was intrigued by the tRNA processing machinery present in almost every living organism. Precursor...PTG constructs in rice protoplasts. Compared to matching traditional gRNA-expressing constructs, transcript... -
Oh, The Places You Can Go: Careers in Science Communication - Writing for a Research Institute
TypeBlog PostPublishedFeb. 2, 2018, 3:20 p.m.... Keown, a staff writer at the non-profit Fred Hutchinson Cancer Research Center. Susan Keown’s science...position at Fred Hutch because her skill set wasn’t matching up with the local job postings. “There were jobs...applied and I got it.” Science writing at Fred Hutchinson Cancer Research Center Work as a Science Writer... -
Human Germline Editing Using CRISPR
TypeBlog PostPublishedAug. 10, 2017, 2:19 p.m....what Shoukhrat Mitalipov and his colleagues have achieved, and how the field will move forward from this...circumvent this problem, they co-injected CRISPR machinery with sperm into M phase oocytes, thus allowing...’s important to remember that the study hasn’t achieved any end goal not available with current techniques... -
Antibodies 101: Secondary Antibodies
TypeBlog PostPublishedDec. 21, 2021, 2:15 p.m....developing assays. Protocol architecture The basic (very basic!) architecture of the indirect approach is...method relies on multiple secondary antibodies attaching to a single primary antibody, it is sometimes ... -
Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics
TypeBlog PostPublishedMarch 3, 2020, 2:15 p.m....GFP. The lab tested the base editors in vivo and achieved therapeutically relevant editing efficiencies ...heart, and skeletal muscle. The dosing required to achieve these efficiencies was also between 1013 - 1014...Ace absorbance increases and results in higher quenching of mScarlet emission. Figure 2: Ace-mScarlet... -
A Look at Addgene's QC Process
TypeBlog PostPublishedMay 6, 2025, 1:15 p.m....intended. Sharing unverified plasmids can lead to far reaching consequences, from wasting time and money on optimizing...through the QC pipeline to resolve any issues. Catching and addressing QC issues Addgene’s QC team has...discrepancies can be caught prior to distribution. Catching these errors prevents future experimental issues... -
Adeno Associated Virus (AAV) for Cell and Gene Therapy
TypeBlog PostPublishedNov. 7, 2017, 1:59 p.m....back into the infants. Almost all patients have achieved persistent immunological reconstitution with a...mutations in the gene RPE65. It is characterized by childhood onset of blindness and was thought to be untreatable...Improvement and decline in vision with gene therapy in childhood blindness." New England Journal of Medicine 372.20... -
Fluorescent Proteins 101: Introduction to FRET
TypeBlog PostPublishedJune 27, 2017, 1:03 p.m....Intermolecular FRET can be experimentally difficult to achieve, because the ratio of acceptor to donor fusions... Before constructing your own FRET probe, try searching PubMed for articles describing the FRET tool that...PMC2396198. 4. Sustarsic, Marko, and Kapanidis, Achillefs N. "Taking the ruler to the jungle: Single-molecule... -
Plasmids 101: Modular Cloning
TypeBlog PostPublishedMarch 12, 2024, 1:15 p.m....multiple genes to achieve a desired effect. This is commonly used in plant biology to achieve traits such as...organization schema MoClo can be broken down into three hierarchical levels: individual DNA parts, transcriptional... -
Split Fluorescent Proteins for Studying Protein-Protein Interactions
TypeBlog PostPublishedMay 3, 2022, 1:15 p.m...., Jiang F, Xie J, Kamiyama D. Commun Biol. 2021 Daichi Kamiyama Cerulean Cerulean(1-10) for use with..., Jiang F, Xie J, Kamiyama D. Commun Biol. 2021 Daichi Kamiyama ECFP C155 of ECFP pairs with N173 derived..., Jiang F, Xie J, Kamiyama D. Commun Biol. 2021 Daichi Kamiyama sfCherry2 sfCherry2(1-10) and sfCherry2... -
Production of Virus in Insect Versus Mammalian Cells
TypeBlog PostPublishedNov. 5, 2024, 8:32 p.m....partially because they contain some of the necessary machinery to make these viruses. The cells are also easy...they require cloning specific AAV or lentiviral machinery into a baculovirus plasmid. Production of baculovirus... https://doi.org/10.1096/fj.01-0995fje. Tan, E., Chin, C. S. H., Lim, Z. F. S., & Ng, S. K. (2021). HEK293... -
Transferable Skills Guide: Managing a Team
TypeBlog PostPublishedJan. 30, 2018, 2:42 p.m....writing a grant, thinking about the next project, reaching out to other teams, expanding your network…. I...problem, I was able to resolve this issue - with coaching - before it became a major problem. But I also...always the case or you may not feel comfortable reaching out to your manager. This is when having a mentor... -
Plasmids 101: Optimizing Plasmid Yields
TypeBlog PostPublishedMay 26, 2016, 2:30 p.m....concentration. Add supplements to the media You can achieve higher cell density using a nutrient-rich broth...plasmids may need to be grown for 20 hours or more to achieve maximum plasmid yield. The optimal growth time ...insufficient gas exchange will prevent your cultures from reaching the desired density. The volume of your flask ... -
3D Printing Meets CRISPR Cas9
TypeBlog PostPublishedOct. 17, 2017, 12:55 p.m.... instances of focused attention become magical teaching moments. The models function as thinking tools...that the resulting physical model is an effective teaching tool. You can read about Jacob’s initial reaction...BioMolecular Modeling web site to check out our hands-on teaching tools that are designed to make the molecular ... -
Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria
TypeBlog PostPublishedApril 4, 2019, 12:53 p.m.... it has been challenging to introduce CRISPRi machinery into diverse bacteria species. Existing protocols...bacteria with a chromosomal copy of the RP4 transfer machinery mobilize these plasmids for transfer to recipient...contain a chromosomal copy of the RP4 transfer machinery, which mobilizes the Tn7 plasmids, and lack the...