We narrowed to 1,010 results for: PLE;
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TypeBlog Post...produced? Purifying exo-AAVs is actually a bit simpler than the classical purification protocol involving...have tried to modify it to improve yields. For example, transfecting the producer cell line with an expression...were always normalized to their genomic titers). Examples include the use of exo-AAV1 for transducing sensory...
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The Crispr Babies Saga Shows the Need for Action, Not More Delays
TypeBlog Post...techniques are continually being refined; it is completely plausible that scientists will eventually have...many things we can navel-gaze over from the last couple of weeks, including whether or not scientists can...history of medical research, there have always been people who unethically experiment on humans, and they ... -
Hot Plasmids - September 2019 - CRISPR, Auxin Inducible Degradation, MerMAID Channelrhodopsins, and Genome Looping
TypeBlog Post...ever like to write about a recent plasmid deposit please sign up here. New toolkit for N or C terminal...binds to TIR1 of the SCF-TIR1 ubiquitin ligase complex, promoting its interaction with the degron sequence...used ChRs in that they cause a rapid and almost complete desensitization when exposed to continuous bright... -
New and Upcoming Viral Vectors - June 2019
TypeBlog Post...size 20 µL samples of control AAV that scientists can use for serotype testing. These samples are available... particular catalog item is available for order please email [email protected] with the vector name and... -
FPbase: A new community-editable fluorescent protein database
TypeBlog Post...about FPs than is currently represented at fpvis (complete spectral information, accession numbers, sequences...the goal of encouraging user contributions (using simple web forms) while also maintaining a relatively ...in the early stages of development, and there is plenty of room for improvement and elaboration. Current... -
New Neuroscience Tool: The iGluSnFR3 Glutamate Sensor
TypeBlog Post...variants. Image adapted from Aggarwal et al…, Supplementary Figure 3. Figure 3: pH titration...variants. Image adapted from Aggarwal et al…, Supplementary Figure 2. Improved trafficking and localization... Multiple Authors... -
Fluorescent Proteins 101: Luciferase
TypeBlog Post... most familiar bioluminescent organism for most people is the firefly (Photinus pyralis) and perhaps not...luciferase activity as a measure of signaling activity. Multiple response elements are cloned into a plasmid upstream... will result in luciferase expression and more complex cell treatments can be designed to further explore... -
Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification
TypeBlog Post...of both AsLOV2 and the nanobody. As a proof-of-principle the Toettcher Lab monitored how AsLOV2 insertion...manipulation of the signaling pathway. As a proof-of-principle, the team created an OptoNB to control the Ras...levers to pull to control signaling pathways. For example, if the OptoNB could bind and block a receptor ... -
Antibodies 101: Monoclonal Antibodies
TypeBlog Post...specific region of your protein of interest. For example, if you are studying a protein that may bind a ...recognize the protein even though it is present in your sample. Additionally, there is a lower likelihood that...higher than that of polyclonal antibodies. For example, it takes longer to develop a hybridoma than it... -
Cas13d: Small RNA-targeting CRISPR enzymes for transcriptome engineering
TypeBlog Post... enzymes, some of which are also functional in multiple species (read Arbor Biotechnologies' press release...nt direct repeat) mediating potent knockdown. Multiplexing from the CRISPR array yielded >90% knockdown... necessary. Konermann et al. compared CasRx to multiple RNA regulating methods: small hairpin RNA interference... -
Viral Vectors 101: Viral Vector Elements
TypeBlog Post...For safety and production reasons, multiple plasmids with many components are used to package lab grown...with each other to allow DNA synthesis of the complementary strand to yield dsDNA. Unlike LTRs, ITRs are...): Cold Spring Harbor Laboratory Press; 1997. Principles of Retroviral Vector Design. Available from: ... -
GCE4All: Making Genetic Code Expansion Accessible
TypeBlog Post...researchers new to GCE aren’t able to successfully complete their experiments and many others are dubious ...universal techniques that researchers can easily implement in their own labs. They provide resources, knowledge...bulletin board on their website specifically so people can talk about GCE. In fact, their first protocol... -
Viral Vectors 101: The AAV Retrograde Serotype
TypeBlog Post...cool because they can transmit information, for example, from one of the 180 regions to another or from...even further defined population of neurons. For example, say I wanted to access all the neurons that signaled... Multiple Authors... -
Viral Vectors 101: Viral Applications
TypeBlog Post...shRNAs are short RNA sequences which target complementary mRNA sequence for degradation. Viral introduction...targeting an exon in your gene of interest, for example. Some customization is required, but many viral...them an ideal delivery system for human patients. Multiple viral-based gene therapies have already been approved... -
How Addgene Creates Content
TypeBlog Post... look at how we create this content, using the example of our Antibody Guide, which was published alongside...can. We even have a Slack channel just for asking people if they can write or review things and another ...require updating or retiring. CRISPR/Cas9, for example, has gone through rapid change in the past few ... -
3 Challenges in Plant Synthetic Biology
TypeBlog Post...agriculture, are now synonymous with GM to the point that people cannot imagine any use for GM technology other ... is not food, not medicine, and not mandatory – people can decide for themselves if they want this beautiful...developed a genetic tool for plant engineering, please share it with Addgene to both build the plant synthetic... -
Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics
TypeBlog Post...ever like to write about a recent plasmid deposit please sign up here. AAV delivery of split base... Type IIS restriction sites to easily assemble multiple DNA fragments. This system has been used to construct...controlled by Cre recombination. Each cell can have multiple copies of the transgene that recombine independently... -
What's New in CRISPR - November 2021
TypeBlog Post... further demonstrated that PRIME-del can be “multiplexed” using pooled paired pegRNAs. Read the paper...Xue’s lab also uses paired pegRNAs targeting complementary DNA strands to program large genomic deletions... without small insertions. But, instead, PEDAR couples this deletion process to a prime editing enzyme... -
The Breast Cancer Microenvironment: A Tumor’s Backstage Team
TypeBlog Post...affect it. While tumors may be the stars, there's plenty of action outside of tumor cells, and recent studies...deeply connected to these 3 stages and contains multiple cell types: fibroblasts, myofibroblasts, neuroendocrine...spread and drug resistance? Although we’ve seen how multiple types of cells affect tumor progression, enzymes... -
Plasmid Tools for Microbiome Studies
TypeBlog Post...intensive to process a large number of microbiome samples. To enable large-scale, longitudinal studies of...and can approximate mRNA concentration within a sample. Using this system, the Collins lab was able to...lab validated their platform on clinical stool samples by comparison to qPCR and demonstrated that it ...