We narrowed to 965 results for: REP

...years at Addgene, we are sharing stories of our repository’s positive impact on science and scientists around...They did this by depositing them in Addgene’s repository. Other researchers, eager to try this new technology...their own to share. Over the years, Addgene’s repository has grown to include many CRISPR tools.  Distributing...Addgene had almost 18,000 CRISPR plasmids in our repository, and we have shared almost 300,000 CRISPR plasmids...of libraries, once made available through the repository. And the number of plasmids and libraries deposited...categorized by year of deposit. Outlines show a representative proportion of CRISPR plasmids requested, categorized...posts are also frequently read: Homology Directed Repair has been viewed 219,289 times, while Validating...

...resulting double strand break (DSB) stimulates DNA repair mechanisms that can be exploited to either inactivate...making targeted modifications to DNA, Cas9 can be reprogrammed to serve as a regulator of gene expression. ...domains such as transcriptional activators or repressors. These fusion proteins retain the ability to ...conventionally used SpCas9 (derived from the bacterium Streptococcus pyogenes). Consequently, fewer genetic tools...observed at the target site.   Figure 3: Gene repression with nuclease-competent Cas9. When complexed ...gRNAs targeting different sites of interest thus represents a straightforward means of exerting tight control...simultaneous cutting and transcriptional activation or repression at the respective sites.   Many thanks to our...

...species. Reproductive confinement involves working with laboratory organisms that can't reproduce with wild...wild-type chromosome and its own gene is used as a repair template, thereby converting the heterozygote into...experiments are less hazardous in organisms that seldom reproduce sexually because the drive must be much more efficient...confinement methods. Since molecular, ecological, and reproductive confinement typically require very little effort...an accidental gene drive release, which would represent proof positive that at least some scientists could...confinement are those of the author and do not represent a formal stance taken by Addgene or its staff....Insect Populations: I. Cage Studies of Chromosome Replacement by Compound Autosomes in Drosophila melanogaster...

...group dependencies  Take, for instance, a recent preprint released by the Boehm and Beroukhim labs at the...research uses ancestry groups rather than self-reported race, it highlights the myriad issues researchers...the results. But the reference genome does not represent the diversity of genetic variation across the ...theory, if the DepMap analysis had an equal representation of every ancestry group, they should have found...designed a tool that could analyze CRISPR sgRNAs and report the likelihood of any given sgRNA having an ancestral... researchers to ignore or miss. The lack of representation in commonly used cell lines led to an incorrect...complicating the issue is the long and ugly history of reporting false essentialist links between biology and ancestry...

...containing a phage origin of replication that can be packaged into replication-incompetent phage particles...antibiotic resistance is upon us, and the world is unprepared. Each year in the United States, two million ...essential processes: cell wall synthesis, DNA replication, or protein synthesis. Because they target such...sequences (red). Treating a mixed population, represented here by cells of different colors, specifically...small pools of antibiotic resistant cells could repopulate the environment after treatment. The phagemid...mammalian viral vectors in that the vectors are replication-deficient. Thus, a very large number of phagemids...CRISPR antimicrobials combines them with both replication-competent phages and antibiotics. Phage therapy...

...transcriptional repressors, they found that fusing dCas9 to an Mxi1 repressor domain repressed transcription... Covalent tethering of DNA repair template to Cas9 Homology-directed repair (HDR) can be used to make ...Gordon's lab developed a strategy to enhance HDR repair using a single-stranded oligodeoxynucleotide HDR...interference (CRIPSRi) platform for targeted gene repression in Candida albicans was developed by Rebecca ...

...Career Development; a Stakeholder Workshop Report.” The report enabled the development of priorities for...Development Hub Workshop Attendees and their 2021 report. Image from pd|hub.   To begin to tackle these...Steering Committee and working groups with representatives from all areas of the scientific training and...the findings were captured in this just released report “Enhancing Dissemination of Evidence-Based Models...programs.  Please join us for the pd|hub Workshop Report Public Release Event scheduled for March 4th from...2:30-4:00 pm ET.  You can learn more about the report's recommendations and join with us to discuss and...

...experiments. If Cas7-11 lacked this toxicity, it would represent a major step forward for CRISPR-based RNA editing.... Specifically, efficacy rates of Cas7-11 were reported as up to 85%, broadly similar to shRNA and Cas13...However, in those same comparisons, the AbuGoot lab reported no detectable effect on cell viability – meaning...mutations wouldn’t matter – the mutated copy could be replaced by simply dragging and dropping in a functional...allowing a one-size-fits-all approach to gene replacement therapy for most patients. But how does one go...work. (It was also found to be independent of gene repair.) This lowers the chance of the insert being “dropped...techniques like HITI or HDR, which require specific repair pathways to work, PASTE is more specific and efficient...

...the new plasmids, antibodies, and viral preps in our repository through our Hot Plasmids articles.  Here's...facilitate SARS-CoV-2 research New viral vector preps of Voltron2 voltage sensors AAV vectors for targeting... tRNAs, within the lentiviral 3’ long terminal repeats (LTR). The 3’ LTR is duplicated during lentiviral...antibodies were recently added to the Addgene repository of tools for SAR-CoV-2 research. Two new antibodies...voltage sensors By Brian O’Neill New viral vector preps expressing the Voltron2 voltage indicator, created...-microglia cells.      Figure 5: A) Representative confocal images showing GFP expression from...Disease, including plasmids, antibodies, viral vector preps, CRISPR tools, and more.  ...

...facilitate repair. Since the development of CRISPR-mediated base editing (BE), these types of repairs can now...the resultant U-G pair is either repaired by cellular mismatch repair machinery making an original C-G...possible through exploiting the homology-directed repair (HDR) pathway which occurs in cells at low frequencies...or reverted to the original C-G by base excision repair mediated by uracil glycosylase (Figure 1). The ...pair (Figure 1). As the cellular inosine excision repair is not as active as uracil excision, ABE does not...al. constructed a number of plant base editors replacing the SpCas9 with the mutant versions of SpCas9 ...

...and placed in the legend. Widely reported difficulties in reproducing experimental data are likely, at...readers may locate data supporting the research reported in PLOS publications. The policy was not an overnight...author. Instead, selected images are said to be representative or the statistical variation is calculated ...datasets are too large to transfer to a journal repository, they are likely too large to be retrieved by...Scientific Data, which aims to act as a peer-reviewed repository for “scientifically valuable” datasets. It likely...likely won’t be long before other data repositories emerge that allow efficient searching and extraction... in our interest to ensure that our data are reproducible and useful to others and efforts to enhance ...

...painstakingly assessed to something a bit more representative of the communities’ opinion. The trouble is... The foremost handles the design of sgRNA and represents the lion’s share of the currently available tools...a good example is CRISPR-GA. These tools assess repair events by type (NHEJ/HDR) and track indels at a...no longer available), is a simple catalogue of reported sgRNA designs. The second database, CrisprGE (...speed up the sgRNA design process by removing repetitive tasks and/or by providing features to help with...it takes authors to add a genome to the tool’s repertoire. Organism agnostic tools are the better solution...to learn the language and what the parameters represent. The best learn-by-doing tool is E-CRISP. The ...

...resistance cassette, and the R6K origin of replication to allow replication only in hosts carrying the bacteriophage...mutated allele introduced from a conjugative plasmid replaces the chromosomal copy. This is a versatile technique...recipient of interest. Because pDS132 cannot be replicated in the recipient, the only antibiotic resistant...modifications to pDS132 (Philippe et al., 2004): Replaced the sacB cassette with one of three toxins from...the Salis group) (Espah Borujeni et al., 2014). Replaced the pDS132 MCS with a versatile, synthetic MCS...recombineering enables simplified chromosomal gene replacement in Escherichia coli." Appl. Environ. Microbiol...genome editing in Escherichia coli." Scientific reports 5 (2015): 15096. PubMed PMID: 28060411. Thomason...

... are tagged with streptavidin, the lateral flow strip first captures the streptavidin portion of the probe...DNA polymerase, recombinase, and the ssDNA-FQ reporters that exhibit fluorescence upon cleavage. Upon ... results in the trans cleavage of the ssDNA-FQ reporter resulting in fluorescence. Cas12a binds all the...results in the continuous cleavage of the ssDNA-FQ reporter. The resulting fluorescence can be observed under...fluorescence visualizer with 9V battery Approach :This preprint uses a previously developed method to detect SARS-CoV...biotinylated primers. These are then immobilized with streptavidin coated beads. Fluorescently labelled dCas9 complexes... concept to lateral flow strips that contain streptavidin which can bind to the biotinylated targets. ...

...molecular brightness (Table 1).  NIR reporters and biosensors NIR reporters can tell us about cellular events...higher apparent cellular brightness than previously reported widely used dimeric iRFPs (Table 1). In general...protein-protein interactions, we recommend using NIR split reporters based on miRFPs (Shcherbakova et al., 2016), since...fluorescence of co-transfected EGFP. e Originally reported as a monomer16, IFP2.0 was later found to be a...E., Sivanesan, D. & Michnick, S.W. An infrared reporter to detect spatiotemporal dynamics of protein-protein...Filonov, G.S. & Verkhusha, V.V. A near-infrared BiFC reporter for in vivo imaging of protein-protein interactions...evolution approach applied to fluorescent voltage reporters. Nat Chem Biol 14, 352-360 (2018). Yu, D. et al...

...sequences required for viral replication and transcription as well as reporter genes. To learn how you can...include activation and repression of your target gene, activation and repression of different genes in ...Lab at MIT developed plasmid based systems that report the order in which specific chemical inputs are...recombinase-based state machines could potentially be used to report upon and/or engineer “temporally ordered biochemical...derived from Zika virus and, upon binding, produce reporter proteins. These toehold switches can be used to...

...as the repair template plasmid to create fluorescent and 3xFLAG-tag fusion proteins. The repair template...new era in C. elegans research. Homology directed repair (HDR), which enables insertion of custom genomic... a fluorescent protein fusion, transcriptional reporter, and loss-of-function allele in just one injection... CRISPR/Cas9 applications, SEC selection could replace other, more restrictive C. elegans selectable marker.... This novel, rapid, and user-friendly system represents another leap forward for the CRISPR/Cas9 revolution...Editing Efficiency CRISPR 101: Homology Directed Repair  ...

...the new plasmids, antibodies, viral preps, and more in the repository through our Hot Plasmids articles....-surface protein labeling and identification. Reproduced from Wu et al. (2025) under CC BY license. ...Grelet Lab developed MitoTRACER, a retroviral-based reporter system that permanently labels the cells receiving... slice expressing PinkyCaMP; scale bar 50 µm. Reproduced from Fink & Imai et al. (2024) under CC BY-NC-ND... or SomaFRCaMPi in neurons; scale bars 50 µm. Reproduced from Zhou, Zhu, Eom, Fang, et al. (2025) under...condensates, disrupting their dynamics and composition. Reproduced from Zhang et al. (2025) under CC BY license....using either "high-tech" or "low-tech" equipment. Reproduced from Collins & Lau et al. (2024) under CC BY-...

...will amplify even if its target states are only represented in a very small number of registers. Instead,...that uniquely express selectable and/or sortable reporters in certain states of interest. For example, in...above (Sanger sequencing, qPCR, and fluorescent reporter-based) each come with their advantages and disadvantages...the most convenient strategy is the fluorescent reporter based method since it lends itself to cheap, quick...detection with flow cytometry. However, expressing reporters will consume cellular resources and therefore ...The input plasmid (high copy, ColE1 origin of replication), contains large serine recombinase genes downstream...we used to drive recombinase expression may be replaced by sensors that correspond to the desired inputs...

...published a report on the social and ethical issues of genome editing and human reproduction, the relevant...Nuffield Council’s report is that when it became clear that this assistive reproductive technique was feasible..., the MIT Technology Review dropped a bombshell report. A scientist working in China was using CRISPR/...question of “how do we move forward” is the June 2012 report on the ethics of “Novel techniques for the prevention...established ethical issues raised around mitochondrial replacement therapies. In other words, rather than having...