We narrowed to 827 results for: nin

...website in search of plasmids. Now, scientists are beginning to see Addgene as a large data set. Addgene has...database. Through a series of simulations and machine learning, they created a classifier that predicts whether...of 173 known synthetic and natural genes.  In designing and optimizing their algorithm, they found that...the genes deposited at Addgene were synthetic. But nine years later, over 20% of the genes deposited that...Nielsen, Alec AK, and Christopher A. Voigt. "Deep learning to predict the lab-of-origin of engineered DNA...

... 101: Blue-White Screening Getting a lot of empty vector contaminants in your cloning experiments and ...Addgenie Jessica Welch explains how Blue-White screening could be a potential solution. 5. Cpf1: A New ...genomic locations. 6. CRISPR 101: Non-homologous End Joining So you know that CRISPR can be used to generate...gymnastics behind DNA repair by non-homologous end joining (NHEJ). 7. Career Coaching for Scientists: Why ...

...Jellyfish (Aequorea victoria) GFP (wtGFP) by mutating Threonine 203 to Histidine (T203H) (1). wtGFP normally contains...performing several rounds of random mutagenesis screening for enhanced RFP variants. PA-mCherry (E26V / ...naturally occurring Dronpa protein (named after dron, a ninja term for vanishing, and pa, for photoactivation)...PALM, also FPALM) (11). For PALM, a small area containing inactive PA-FPs is photoactivated, imaged, and...and new variants are still being engineered. By combining PA-FPS with superresolution microscopy, scientists... Michelle Cronin...

...for p-azido-l-phenylalanine E. coli pEVOL-pBpF synthetase for p-benzoyl-l-phenylalanine E. coli pAcBac1..., 1978), a measurement that is unaffected by intervening proteins, lipid bilayers, organelles or other...due to tens of thousands of biomolecules each containing multiple binding crevices that can nonspecifically...labeling contrast can be improved using disulfide-containing compounds such as British anti-Lewisite (which...PMCID: PMC2802762. 2. Dumas, Anaëlle, et al. "Designing logical codon reassignment–Expanding the chemistry...

...produce custom gRNA-containing lentivirus, we are providing lentiviral preps containing highly requested ... lentivirus is not always an easy process. The cloning capacity of lentiviral vectors (~8.5 kb of insert...optimization-scale infection and at least one screening-scale experiment achieving the gRNA representation...expertise as we’ve gotten these services up and running. Both Alex Chavez and John Doench are members of...

...cells I was using in an experiment, then spend the evening listen to some bloke at the pub telling me that...to wonder how he has survived this long without downing any dihydrogen monoxide (H2O). Studying science...the same abstract but with the names reversed, meaning that the findings of the study were also reversed...were exhibiting a phenomenon called “motivated reasoning,” the catchall term for a range of neat little...nclimate1547 Kunda, Z. (1990). The case for motivated reasoning. Psychological bulletin, 108(3), 480. More resources...

...at my company was open to meeting with me and explaining more of her role, which eventually led me to ... problems that they are trying to solve. After learning more about the stakeholders, the product managers...next-gen sequencing (NGS), and high-throughput screening. While some developers had science backgrounds...audience. Additionally, in order to keep everything running smoothly, you’ll want to be really organized. Often... hours ahead, so I’m always catching up in the morning! 9:00 AM--Technical implementation review. The ...

...particle containing Matrix, Capsid, and Nucleocapsid components. Pol Precursor protein containing Reverse...example: pLXSN has the wild type LTR, an MCS for cloning X gene, an SV40 promoter, and Neomycin selection...either side of a retroviral provirus (see below). Cloning capacity between the LTRs is ∼8.5 kb, but inserts... The transcript begins, by definition, at the beginning of R, is capped, and proceeds through U5 and the...

...diversity is impressive, and researchers are just beginning to tap the wealth of CRISPR possibilities. To ... are described below. Yan et al.: WYL-domain-containing accessory protein WYL1 increases RspCas13d and...EsCas13d activity, indicating that WYL domain-containing proteins may be broader regulators of Cas13d ...Cas13d enzymes is another win for bioinformatic data mining. As we continue to harness the natural diversity...Effector Positively Modulated by a WYL-Domain-Containing Accessory Protein.” Mol Cell. (2018) pii: S1097...

...years. But learn we did! From Addgene's very beginning, we had to consider digital accessibility for ...student using viral vectors for the first time and learning how to purify AAV.  Second, you’ll identify your...captured at the 17%, 25%, and 60% layers, and genome-containing virions are captured at the 40% layer. To collect...insert a syringe at the interface of the 40% layer containing the virus and 60% iodixanol layer, with the bevel...alt text in the comments! We learned a lot from listening to others' alt text descriptions, and we’d love...

...generally have moderate to high immunogenicity, meaning they induce an immune response in the host. So...required components are very similar. While plasmids containing virus-specific elements such as the LTRs or structural...allows it to replicate episomally, essentially remaining an extrachromosomal part of the host genome that...endogenous DNA. AAV also has low immunogenicity, meaning it does not induce the same high immune response...which ones could be helpful to you. Interested in learning more about a specific virus? We have you covered...

... can be easily maintained when grown on media containing the missing nutrient. Scientists can exploit ...the host’s auxotrophy. When grown on media NOT containing the nutrient, the host cells will die unless ...weak. yes   LYS2 L-lysine yes - Grow on plates containing alpha-aminoadipate in the absence of a nitrogen...used in gene disruption experiments. MET15 L-methionine and overproduces hydrosulfide ions yes - Grow... L-leucine   S. pombe  no no   ade6+ purine (adenine)   S. pombe  no no   Considerations when using...

...Addgene’s 20th anniversary on Twitter. In the beginning Let’s take a quick flash back to 2004. “Shrek ...business practices, like accepting e-signatures and designing a website users could easily navigate. This meant... make sharing reagents and protocols so easy!” — Nina Jain, Harvard Medical School. We want to give a ...requestors alike. We transformed this process by aligning institutions with standardized agreements and ...Addgene for the basics of molecular biology and cloning, since they have reasonable introductions to lots...

...audience’s mental bandwidth.  Jargon Learning, using, and retaining new vocabulary takes time and effort...others. But sometimes we’re unaware that we are leaning on an unspoken expectation of our audience knowing...concept to another which leads us to… Framework Learning to think like an immunologist, a geneticist, a...needed to remove a distraction, such as pausing or turning off the slide deck (or reminding them to put their...

...hydropersulfide that is then transferred to thiol-containing acceptors. These hydropersulfides modulate protein... biosensor can also be used along other thiol-containing acceptors in competition assays. “I believe that...photoconvertible fluorescent protein mEOS4a. Cells containing a sensor that shows a favorable outcome are then... to engineer many types of biosensors.   This screening method allowed Tian to optimize a red‑shifted ...neural microcircuits. “In the longer term, this screening platform may help us to create high-performance...

... labeling using a noncanonical amino acid, azidohomoalanine (AHA). In the technique, AHA is incorporated...incorporated into newly synthesized proteins instead of methionine. The labeled proteins can be detected using click-chemistry...click-chemistry that covalently links the azido containing AHA to a fluorescent alkyne tag. The newly synthesized...determine the turnover of a specific protein by combining it with the proximity ligation assay (PLA). The...concerts and bake. you can contact her at rojas@ti2learning.org. References 1. Dieterich, Daniela C., et al...

...How Non-Homologous End Joining Repairs Double Strand Breaks Get Tips on Designing Your gRNA Browse Our ...RuvC groove, Slaymaker et al. made a variety of alanine substitutions throughout the groove in 32 separate...diminish off-target cutting (4). However, instead of weakening interaction sbetween the non-target strand and... in applied and/or therapeutic settings. Will combining the different mutations found in each of these...

...sequence of the plasmid, we examine three things: Aligning the NGS result to a reference sequence to confirm...backbone elements.   Confirming the gene/insert by aligning to NCBI entry or using BLAST.   Confirming tags.... We’ll break down each of these steps below. Aligning the sequence The first step we take when performing...publicly available reference sequence or plasmids containing genes with many modifications. We look for point...-Cas9 knockout and transcriptional activation screening. Nat Protoc 12:828–863 . https://doi.org/10.1038...

...vigilant about these errors is an important part of maintaining the quality of reagents, especially shared ones... easy to edit, and easy to share. However, the cloning process — including the propagation of plasmids...these errors could cause the plasmid to stop functioning properly or be something completely different...process, we believe this to be non-negotiable. By maintaining a high standard of quality control, we have built... built a trusted plasmid catalog containing over 150,000 sequence-verified constructs to share with scientists...

...lesson plans that are made freely available online; running professional development (PD) workshops for teachers...organizing Congressional briefings in Washington DC; convening meetings of experts and leaders from academia,...number of different opportunities to broaden my training beyond the biological sciences, as well as to ...students. One of these organizations was pgEd. After obtaining my PhD and working in digital academic publishing...festivals, and getting experience in either giving or running these events will be important both in preparing...

...produced in E1-containing mammalian cell lines such as HEK293 cells. 1st generation AdV cloning capacity is.... 2nd Gen AdVs were designed to have increased cloning capacity, decreased  potential for the generation...deleted in 2nd generation AdVs, thereby increasing cloning capacity to ~12 Kb. The ever popular pAdEasy system... interest for gene therapy due their increased cloning capacity (up to 36 kb!), long-term transgene expression...

...treatment strategies for these disorders have involved turning on fetal hemoglobin to compensate for defects in...approach, editing patient cells ex vivo and then returning them to the patient. The first human trial involving...many, many pieces. Locus Biosciences is currently running this trial, with more updates expected in the coming...considerations for all CRISPR therapies, but especially concerning when using a systemic approach. Regarding effectiveness...difference, then the treatment will not work in a meaningful way. Delivery, especially for systemic approaches...

..., Terns MP, White MF, Yakunin AF, Garrett RA, van der Oost J, Backofen R, Koonin EV. An updated evolutionary...transfer, analogous to traditional restriction enzyme cloning. Sticky-end mediated gene transfer would be particularly...homology-directed repair (HDR) over non-homologous endjoining (NHEJ). Cas9-mediated NHEJ usually destroys the...Essletzbichler P, Volz SE, Joung J, van der Oost J, Regev A, Koonin EV, Zhang F. Cpf1 Is a Single RNA-Guided Endonuclease...

...naked eye. This makes cloning quite a bit easier since you can see if your cloning experiment worked just...methods. While techniques such as  blue-white screening require X-gal, an expensive exogenously-added ...chromoproteins don’t require other substrates for screening. Thus chromoproteins can be used as markers in... between chromoproteins. In some cases, cells containing high-copy plasmid-borne chromoproteins lost color...

... antibodies may have similar emission spectra, meaning they will emit fluorescent light at similar wavelengths...record the fluorescence for both at similar levels, meaning that your populations will ‘look’ similar on your...compensate in the top right corner of a flow plot, meaning that it should be double-positive for the two markers... what two markers your fluorescent markers are staining for. If a cell is positive for both markers, it...compensation values later. This can be helpful as you're learning! Ashlyn has a research background in CD8+ T cells...

...collection of CRISPR tools has grown steadily, gaining approximately 2,000 plasmids/year from 2017 to ...to 2023. This growth is supported by new labs joining the Addgene CRISPR community, with approximately ...wanted to know, so we classified CRISPR plasmids containing a nuclease into three functional groups: nucleases...grown to 17,560 CRISPR plasmids. That’s almost a ninety-fold increase in size! From this collection, we...educational resources help scientists navigate that learning curve. As of 2023, our CRISPR guide has been viewed...

... of these resources as I could. Networking and learning from the careers of others were key to creating...productive partnership CINSO has had. Volunteer! The turning point in my graduate experience, the point at which...Dinosphere” almost every week. I gained experience explaining science to visitors of all ages, learned a lot...lessons they have learned during their scientific training and wrote about them in a blog post on Born to...to Science: Life Lessons from Scientific Training More and more voices of encouragement emphasize the...

...delivery methods.   General considerations for planning your CRISPR experiment As with any experiment,... factors that need to be considered during the planning process. For CRISPR experiments, the following...viral delivery. Cas9 mRNA and gRNA Plasmids containing gRNA and Cas9 are used in in vitro transcription...as well as genome repair by non-homologous end joining (NHEJ) or HDR. EGFP validation of sgRNAs: Can evaluate...evaluate component delivery and sgRNA efficacy by cloning in genome target sequence into EGFP reporter. Target...

... direct RNA-guided transposition. By natively combining the DNA integration capabilities of transposases...with Type I-F INTEGRATE using a single plasmid containing a multi-spacer CRISPR array. Workflow and...s41586-019-1323-z Peters JE, Makarova KS, Shmakov S, Koonin EV (2017) Recruitment of CRISPR-Cas systems by ...Ladha A, Gardner Z, Schmid-Burgk JL, Makarova KS, Koonin EV, Zhang F (2019) RNA-guided DNA insertion with...science.aax9181 Strecker J, Ladha A, Makarova KS, Koonin EV, Zhang F (2020) Response to Comment on “RNA-...

...detection had over 1,000 authors. The chapter on deep learning addresses the dilemma of creating a technology... “The most obvious future consequence of the undermining of the scientific process and the marginalization... the summer of 2020 that the consequences of undermining science are even more immediate and dire than...himself has written entire books about optogenetics. Defining science and summarizing its past, present, and...task to set oneself. As a scientist who enjoys learning a little bit about many different things (part...