We narrowed to 738 results for: TRI
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TypeBlog PostPublishedJuly 27, 2021, 1:15 p.m....plant hormones strigolactones By Fabienne Furt Current methods used to detect strigolactones (SLs) are costly...build and validate a ratiometric fluorescent biosensor based on the parasitic Striga hermonthica SL receptor...editing in organoid Biosensors for detecting strigolactones The CRISPR Corner New ready-to-use viral preps... catalytic activity. As SLs are also known to trigger seed germination of parasitic plants, this approach...
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Zebrafish as a Model for Behavior: Swimming into the Optogenetic Spotlight
TypeBlog PostPublishedJuly 16, 2019, 12:59 p.m.... Kolmer-Agduhr cells was sufficient to trigger the symmetrical tail movement unique to spontaneous slow...periodically beat their tails left and right in a symmetrical motion to move forward. This behavior is not ...behavior studies in action: Identifying neurons that trigger spontaneous swimming Researchers at the Isacoff... zebrafish larvae to identify new neurons that trigger the CPG (central pattern generator) (Wyart et al... photostimulation in order to drive the full symmetrical response. The function of Kolmer-Agduhr cells... -
Hot Plasmids June 2018 - Reverse transcriptase, nanobody, and protein-DNA interaction tools
TypeBlog PostPublishedJune 27, 2018, 1:16 p.m....transport at the cell surface Article contributed by Marcy Patrick Listen to the nanobody toolkit podcast...highly processive reverse transcriptase Article contributed by Will Arnold Listen to the MarathonRT podcast...occupying a specific genomic locus: Caspex Article contributed by Susanna Bachle Listen to the Caspex podcast...occupying a specific genomic locus: C-BERST Article contributed by Klaus Wanisch Listen to the C-BERST podcast...dCas9–APEX2 biotinylation at genomic elements by restricted spatial tagging), to confirm the composition ... -
Arabidopsis in Education: How the Arabidopsis Biological Resource Center Brings Plant Science to Life
TypeBlog PostPublishedApril 12, 2018, 1:02 p.m.... This post was contributed by guest blogger Courtney Price, the Education & Outreach Specialist for the...mission is to collect, preserve, reproduce and distribute seeds, DNA and other resources for Arabidopsis...100,000 samples to researchers and educators in 60 countries each year. Introducing Arabidopsis Arabidopsis...fluorescent lights. Other experiments require only seeds, petri dishes, and filter paper. Another benefit of using...learning. Whether visiting classrooms, hosting field trips, conducting teacher workshops, or staffing a booth...partnerships have grown to include local school districts, professional education associations, and local... -
Celebrate Open Data Day with Addgene’s AAV Data Hub!
TypeBlog PostPublishedMarch 5, 2020, 2:15 p.m....resource of over 100 entries is driven by the dedicated community of data-contributing researchers who use...This word cloud (using wordart.com) represents contributed data on brain injection site from the AAV data...recently used Addgene AAV tools, we invite you to contribute your data to grow this resource for the community...opportunity to cite the image to give proper attribution. We hope that this provides a clear overview...to all of those dedicated scientists who have contributed to the AAV Data Hub. If you haven’t yet, we encourage... -
Plasmids 101: Origin of Replication
TypeBlog PostPublishedNov. 11, 2020, 2:23 p.m....pR6K ~15-20 R6K* C Stringent pACYC ~10 p15A B Relaxed pSC101 ~5 pSC101 C Stringent pBluescript ~300...of replication is referred to as "relaxed" or "stringent" depending on whether the ori is positively regulated... do you choose? Addgene Senior Scientist Marcy Patrick says researchers can ask themselves a few questions...copy number of a plasmid, other external factors contribute as well. These considerations are especially ...are temperature sensitive; others ori's can be "tricked" into amplifying more copies with the addition ... -
Important Considerations When Using AAVs
TypeBlog PostPublishedJune 13, 2017, 2:30 p.m....This post was contributed by guest blogger Katrina Armstrong, a Neurophysiology Msc Student at the University...communities. Many thanks to our guest blogger Katrina Armstrong. Katrina Armstrong is a Neurophysiology Msc Student...better (3). Brain Region Optimal Serotype Striatum AAV5>AAV9>AAV8>AAV1>AAV6>AAV2 Hippocampus AAV9...will depend upon which section you’re looking at (striatum, hippocampus and cortex) within the mouse brain...serotonin in movement. Follow her on twitter @katrinaboards. References 1. Russell, David W. "AAV vectors... -
FLEx Technology and Optogenetics: Flipping the switch on gene expression with high spatial and temporal resolution
TypeBlog PostPublishedOct. 17, 2019, 12:28 p.m....This post was contributed by Alessia Armezzani, scientific communication manager at genOway. A few decades...Hegemann, 1991). These proteins control the flow of electric charges across cell membranes and maintain membrane...neurons have in common? Neuronal stimulations are triggered by the movement of ions across the axon's membrane... is reached and the neuron fires, sending the electrical signal down the axon (Lodish et al., 2000). Most...light activates channelrhodopsins that, in turn, trigger neural excitation, whereas yellow light activates...stimulations, they simultaneously recorded the electrical impulses of discrete subpopulations of this brain...Through a partnership with genOway, we are able to distribute materials containing FLEx technology. Read the... -
22 Hot Plasmid Technologies from 2014
TypeBlog PostPublishedJan. 6, 2015, 5:21 p.m....intensity, excitation and emission spectra. The lab of Dimitri Deheyn recently identified a family of GFP proteins... that they can be imported to the mitochondrial matrix. Gottlieb’s lab has used an inducible MitoTimer...into Golden Gate entry vectors via traditional restriction enzyme cloning, TA cloning, or annealing of oligonucleotides...team at the Institute of Science and Technology Austria, decided to take a novel approach to control for...activity levels and limited sensitivity under the stringently low expression conditions necessary to avoid ...chemogenetic technologies After several years of distributing his Designer Receptors Exclusively Activated...cloning strategy, MoClo, which uses the Type IIS restriction enzymes BsaI and BpiI/BbsI to efficiently assemble... -
Using AAV for Neuronal Tracing
TypeBlog PostPublishedAug. 9, 2018, 1:04 p.m....strengthened during memory formation and memory retrieval. In neuronal tracing experiments, brain tissue...Traditional tracing compounds either produce a colorimetric product or are fluorescent. While dyes usually...pressure injection or iontophoresis (applying small electric currents via inserted electrodes) may be applied...both antero- and retrograde labelling, synaptic restriction as well as controlled monosynaptic and polysynaptic...polysynaptic spreading. AAV vectors cover some of these attributes and their use has allowed for the visualization...recombinant AAV serotypes 1, 2, 5 and 8 in the rat nigrostriatal system. J Neurochem 109, 838–845. PubMed PMID...PMID: 19727139. Ugolini, G., Kuypers, H.G., and Strick, P.L. (1989). Transneuronal transfer of herpes ... -
Improved Plasmid Maps Powered by SnapGene
TypeBlog PostPublishedJune 29, 2017, 1:06 p.m....identify. Improved Restriction Enzyme Handling - SnapGene’s software positions restriction enzyme annotations...paste functionality. Restriction Enzymes Here you'll find a table of restriction enzymes that cut the...previous mapping software and now includes Type IIS restriction enzymes that are commonly used for Golden Gate...clicking on column heads. Clicking on a particular restriction enzyme here also highlights it in the “Map” and... -
Clear and Accessible Writing
TypeBlog PostPublishedFeb. 15, 2024, 2:15 p.m....from AAV Purification by Iodixanol Gradient Ultracentrifugation First, you’ll want to identify the reader...for AAV Purification by Iodixanol Gradient Ultracentrifugation. The reader may be, for example, a graduate...between a gradient tube before and after ultracentrifugation so that a scientist can extract virus from...interfaces between layers are blurred after centrifugation and the syringe needle is inserted bevel-up...profile photo of an iodixanol gradient after ultracentrifugation. The interfaces between layers are muddled...illustrates a gradient tube before and after ultracentrifugation. The viral supernatant migrates through increasingly... -
CasPEDIA: A Functional Classification of Cas Enzymes
TypeBlog PostPublishedJan. 25, 2024, 2:15 p.m....make efforts to keep it updated with new entries and update entries as research progresses, but you are invited...Additionally, the Phylogeny tool allows users to browse entries by the current phylogenetic nomenclature and discover... database, and all researchers are invited to contribute to it! The CasPEDIA Consortium will, of course... invited to reach out to suggest new entries or even new features to the tool. Resources and References...References References Adler, B., Trinidad, M., Bellieny-Rabelo, D., et al. (2023). CasPEDIA Database: A Functional... -
Plasmids 101: Screening Strategies Used in Plasmid Cloning
TypeBlog PostPublishedSept. 15, 2020, 1:15 p.m....use restriction digest to screen your clones, but there are many other ways to choose restriction enzymes...blue-white screen. Image from Stefan Walkowski. Restriction digest Another way to distinguish between colonies...inserts from those that do not is by using a restriction digest. The key is to be strategic about your...route, check out our protocol video on using restriction digests to analyze plasmids, which can help you... you visualize this process, or visit our restriction analysis blog post. Colony PCR Colony PCR can... -
GPCRs: How Do They Work and How Do We Study Them?
TypeBlog PostPublishedFeb. 11, 2021, 2:15 p.m....coupled with heterotrimeric G proteins on the intracellular side of the cell membrane. Heterotrimeric G proteins...in signal transduction pathways and consist of a trimer of three subunits: alpha (Gα), beta (Gβ), and gamma...the GPCR allows for binding of a new inactive heterotrimeric G protein complex and subsequently another ...elucidate the role of 14 of the 16 non-visual heterotrimeric G proteins that can be activated downstream... alpha, 2 beta, and 4 gamma subunits of the heterotrimeric G protein complex that can be used to detect... -
Hot Plasmids December 2018 - C. elegans RNAi, TurboID, Detecting Viral Outbreaks, and Protein Binding Specificity Tools
TypeBlog PostPublishedDec. 6, 2018, 1:34 p.m....construct for C. elegans gene knockdown Article contributed by Alyssa Cecchetelli Listen to the C. elegans... labeling with TurboID and miniTurbo Article contributed by Eric Perkins Listen to the TurboID and miniTurbo...compartments is via proteomics--the study of the distribution and interactions of proteins within these structures...small-molecule substrate to map the spatiotemporal distribution and interaction networks of specific proteins...Changing the way we detect viral outbreaks Article contributed by Izzy Mueller Listen to the viral detection... reveals novel peptide ligand motifs Article contributed by Michael Lemieux Listen to the SH3 domain ... -
Addgene: The First Twenty Years
TypeBlog PostPublishedDec. 19, 2024, 2:15 p.m....March 2015, Addgene reached the 500,000 plasmids distributed milestone! We were thrilled to see the impact...one plasmid deposited at Addgene that has been distributed more than 100 times. “I really like this award... labs worldwide use our plasmids. I hope they contribute to great discoveries!” — Julien Béthune, Professor...Flame Award on Bluesky. In 2016, we also began distributing ready-to-use viral vectors from some of our ...supportive educational resources. By 2017, we had distributed 1,000 ready-to-use viral vector preps. Today,...citations of individual items in our repository, a tribute to how many discoveries have been made because ... -
Plasmid Tools for Microbiome Studies
TypeBlog PostPublishedJune 27, 2019, 12:25 p.m....translation by sequestering the RBS, but binding of the “trigger RNA” (in this case, biomarker RNA or 16S rRNA isolated...can also detect expression of toxin mRNA from Clostridium difficile. As mRNA expression cannot be identified...fluorescent markers to visualize localization and distribution of gut bacteria without fixation or preparation... count cell divisions. The technique, called distributed cell division counting (DCDC), relies on the ... for both in vitro and in vivo studies. Find distributed cell division counting plasmids here References...PMCID: PMC2752045. Myhrvold, Cameron, et al. "A distributed cell division counter reveals growth dynamics... -
Troubleshooting Your Plasmid Cloning Experiment
TypeBlog PostPublishedSept. 24, 2019, 12:55 p.m....your cloning strategy: Restriction enzyme digestion Be mindful of the restriction enzymes you chose. Make...This post was contributed by Oskar Laur, head of the custom cloning core at Emory University, and Paolo...which technique you are going to adopt (i.e. restriction cloning, Gibson Assembly, Golden Gate etc.), ... fragments of the size you expect, check the restriction pattern of the enzymes you chose, and verify ...hopefully have some new strategies to tackle that tricky cloning project. Good luck with your experiment... -
Addgene's Tips for Plasmid Quality Control
TypeBlog PostPublishedJan. 14, 2016, 3:30 p.m.... added level of confidence in the plasmids we distribute through our quality control processes. Every ... Addgene, we collect data on every plasmid we distribute through our deposit process, and then we carefully...functional mutations, antibiotic resistance, restriction sites used during cloning, and most importantly...sequencing reactions in parallel. We have a few tricks to simplify the process. First, nearly all of our...sequencing from the exact same stock that we store and distribute from. Of course, your culture should always be...sequencing reads? Tell us your favorite sequencing tricks in the comments section below. Additional Resources...