We narrowed to 399 results for: POR C
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TypeCollection...activation). Genome support for bacteria ( E. coli, B. subtilis ), yeast ( S. cerevisiae ), worm ( C. elegans )...gRNA and HDR donor design. The current version supports SpCas9, SpCas9-VQR, and enAsCas12a Cas enzymes...Lab . Read more about it on the Addgene blog . CRISPOR (Link opens in a new window) This tool helps design...(2016) (Link opens in a new window) . Also try CRISPOR batch (Link opens in a new window) for lentiviral...input sequence and checks for off-target binding. Supports a range of Cas enzymes (Cas9 and Cas12) and organisms... or a sequence text file you upload. Currently supports a wide selection of organisms. From the Database...sequence and checks for off-target binding. Currently supports a wide range of organims. Developed by the Michael...
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Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design
TypeBlog Post...Pubmed Central PMCID: 4299491. 5. Bassik, Michael C., et al. "A systematic mammalian genetic interaction... Screens Before diving into the results, it’s important to note that in Morgens et al., guides were considered... -
Quick Guide to Near-Infrared Fluorescent Proteins
TypeBlog Post... internal tags due to the proximity of the N- and C-termini. Latest miRFPnanos9 do not yield to (m)iRFPs...molecular brightness (Table 1). NIR reporters and biosensors NIR reporters can tell us about cellular events..., D. & Michnick, S.W. An infrared reporter to detect spatiotemporal dynamics of protein-protein interactions...FPs) were derived from natural photoreceptors incorporating biliverdin IXα (BV) autocatalytically. Fortunately...should be supplied (Baloban et al., 2017). It is important to consider effective brightness of NIR FPs in... a cell and depends on the efficiency of BV incorporation by an apoprotein and protein expression level...higher apparent cellular brightness than previously reported widely used dimeric iRFPs (Table 1). In general... -
Evolution of Lab Techniques
TypeBlog Post...1975): 503-517. PubMed PMID: 1195397. 2. Chang, Judy C., and Yuet Wai Kan. "A sensitive new prenatal test...although they are reported to have high error rates (10). It is projected that nanopore-based sequencing... similar experimental questions (see below). Importantly, although their role has changed, restriction...lengths because extension is terminated upon the incorporation of a ddNTP. Researchers perform four different...activity as fluorescently labeled nucleotides are incorporated, a method called pyrosequencing. The drive for...sequencing world, one up and coming innovation is nanopore-based DNA sequencing which reads the nucleotides...nucleotides of a DNA strand as it slips through a tiny pore by measuring differences in ion flow caused by the... -
Multiple Plasmids at a Low Price: Kits from Addgene
TypeBlog Post... easy for a researcher to quickly generate N- and C-terminal epitope tag fusions to a protein of interest...found in your gene of interest) and prevent incorporation of extensive sequences used for cloning into... your research to a variety of experimental opportunities. The plasmids in this kit have been used to ...library by in vivo functional screen." Scientific reports 5 (2015). BIOFAB plasmid set 3000 Series Confronted...are just the tool you need. The plasmids in this portion of the BIOFAB Plasmid Set contain terminators of...strengths centered within GFP/RFP bicistronic reporters characterized in Cambray et al., 2013. These terminators...Helena, et al. "Biosafety of biotechnologically important microalgae: intrinsic suicide switch implementation... -
Hot Biosensors 2022: Year-End Roundup
TypeBlog Post...a variety of imaging conditions (155 μs and <0.1 °C in optimal conditions). While B-gTEMP itself is a ...of interest and co-expressing a cytosolic ZtSH2 reporter, they observe fluorescence localizes to the plasma...And orthogonal sensors with different ITAM/SH2 reporter pairs allow multiplexed measurement of different...plasmids here! Farahani PE, et al. pYtags enable spatiotemporal measurements of receptor tyrosine kinase signaling...10.1101/2022.08.13.503850. iGECInano NIR calcium reporter Near-infrared (NIR) fluorescent proteins promise...photochemical characteristics than previous NIR calcium reporters iGECI and NIR-GECO2G, and its small size (~1500...sensors Whatever your analyte of interest, it’s important to choose a biosensor that has a binding affinity... -
Antibodies 101: Introduction to Gating in Flow Cytometry
TypeBlog Post...in fewer cells being considered for the analysis. (C) A more liberal gate allows more cells to be considered...signals. For this, you’ll need to gate based on the proportion between H and A (or W and A) within the same ... just as fine (Figure 4). As H and A scale in proportion (while H and W do not; see Figure 2), single ... B. Figure 4: (A) Using the proportional relationship between FSC-H and FSC-A we can ... -
Harnessing Bacterial Toxins for Allelic Exchange
TypeBlog Post... coli." Scientific reports 5 (2015): 15096. PubMed PMID: 28060411. Thomason, Lynn C., et al. "Recombineering...merely co-opted toward that aim (i.e. sacB). Importantly, to prevent activation of toxins before the second... -
CRISPR 101: Off-Target Effects
TypeBlog Post...3):937-948. doi: 10.1016/j.ymthe.2020.11.009 Guo C, Ma X, Gao F, Guo Y. Off-target effects in CRISPR/...better to reduce off-target effects, but it’s important to not let ‘perfection’ get in the way of ‘good... score their probability of off-target events: CRISPOR, Cas-OFFinder, CCTop, and many more. While such... -
Technologies Enabled by NanoLuc® Luciferase
TypeBlog Post...composed of Venus fluorescent protein, the Troponin C Ca++ binding domain, and NanoLuc® Luciferase. CalFlux...has dubbed these fusions LumiFluor Reporters. The LumiFluor reporter constructs were designed to be packaged... The researchers took a FRET reporter and adapted it into a BRET reporter by using NanoLuc® Luciferase...share your constructs from lab to lab. Promega supports the Addgene mission statement: Accelerate research...(FLuc) and Renilla (RLuc) luciferase. This is important not so much for how bright you can make a reaction...couples NLuc to fluorescent proteins to make better reporters and the second couples NLuc to fluorescent proteins...host cells. The fluorescent moiety of the BRET reporter was used to sort successfully infected/expressing... -
Generating Mouse Models Using CRISPR/Cas9
TypeBlog Post...10.1016/j.cell.2013.04.025 Zhang X, Liang P, Ding C, Zhang Z, Zhou J, Xie X, Huang R, Sun Y, Sun H, Zhang...enrich and select for cells that had successfully incorporated the desired mutation, and then derive mice from...handling embryos ex vivo, the components can be electroporated into the oviduct of pregnant females, a technique...gRNA, Cas9, and donor oligonucleotide can be electroporated into the mouse zygote (Qin et al., 2015). ... it a single nucleotide change, insertion of a reporter gene, or replacement of the murine sequence with... microinjectionist, who has the strategically important job of delivering the payload! Last but not least...-Mediated Genome Editing in Mice by Zygote Electroporation of Nuclease. Genetics 200:423–430 . https:/... -
Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility
TypeBlog Post...repository 49:45 0 1:18:45 - Reagent Development - Steven C. Almo, Institute for Protein Innovation 1:18:45 -...findings can be predictably applied to future work. Importantly, no one should expect that every study should...of reproducibility for preclinical studies, as reported by drug companies attempting to apply the findings...and use computer based analysis techniques, an important component of reproducibility is making sure that... -
Antibodies 101: The Basics of Western Blotting
TypeBlog Post...4354 . https://doi.org/10.1073/pnas.76.9.4350 Yang P-C, Mahmood T (2012) Western blot: Technique, theory,...while less protein leads to a thinner band. It is important to note, however, that you must include a loading... -
Deep Dive: Statistical Tests (Comparisons)
TypeBlog Post...measure this effect, known as covariance. This is the “C” that differentiates these tests from ANOVA/MANOVAs...most effective and accurate way possible it’s important to select the right test for the job (and, uh,... -
RNA Interference in Plant Biology: New Tools for an Old Favorite
TypeBlog Post... Y, Miki T, Fujioka R, Uehara R, Tomioka A, Obuse C, Kubo M, Hiwatashi Y, Goshima G (2012) An Inducible...fluorescent reporter, directly couple silencing of your gene target to silencing of the reporter. This is...application of long or short dsRNA. However, it is important to note that naked and unmodified dsRNA elicits... Together, this excellent work highlights the importance of using orthogonal methods to confidently conclude...fusing your gene target sequence to a fluorescent reporter sequence (discussed below). Examples of these ...genome, whereas shRNAs are exogenously derived. Importantly, instead of the assortment of siRNAs generated...contains a target sequence against the fluorescent reporter in an inverted repeat orientation. Therefore, ... -
Transferable Skills Guide: Teamwork
TypeBlog Post... my senior year isolating pheromones from various C. elegans mutants by myself, I would have slowly gone...orchestrate the formation of high-functioning-but-temporary teams that have a specific purpose and finite ...year, or a few months, or even a few weeks. The important thing to remember is that every team should have...when I do come across one. Also, remember, one important feature that all projects have in common - and... What does a good team need? Besides that all-important sense of purpose, there are many more things necessary... function is certainly necessary, but equally important is making sure all team members understand what...their responsibilities are. That’s a subtle but important distinction. If I invite someone to be on a project... -
Which Fluorescence Microscopy Technique is Best for Me?
TypeBlog Post...920-931 (2005). PubMed PMID: 16299477. 3. Eggeling C, Willig KI, Sahl SJ, Hell SW. Lens-based fluorescence...Harvard University. No matter whether you are a sports photographer at the Super Bowl, a medical technologist...the first fluorescence microscopy technique to incorporate optical sectioning. Optical sectioning refers...their fast movements. Depending on the sample, a temporal resolution on the millisecond scale may be needed...plane of excitation light that is thinner than the portion of the sample that is in focus. This technique ...resolution due to the lack of a requirement for high temporal imaging speeds. Standard fluorescence widefield...sectioning, imaging over large distances and high temporal resolution. Traditionally, this type of sample... -
Fluorescent Proteins 101: Monitoring Cell Mobility Using Fluorescent Proteins
TypeBlog Post...system and its dynamics. References 1. Peters, Nathan C., et al. "In vivo imaging reveals an essential role... methods allowed immunologists to develop a spatiotemporal view of an immune response, but the study of...transgenic mice expressing fluorescent protein reporter constructs in the immune lineage. By specifically...than the standard Ti:Sapphire laser. It is also important to finely tune the excitation wavelength as it...using 2-photon microscopy as this hasn't been well reported for many fluorescent proteins. Additional fluorescent... -
Plasmids 101: Modular Cloning Applications and Kits
TypeBlog Post...doi.org/10.1371/journal.pone.0197185. Chamness, James C., et al. “An Extensible Vector Toolkit and Parts Library...sub-cellular localization signals, plant markers, and reporters (Engler et al., 2014). This kit is a great starter...upon (its ‘basics’ MoClo plant kit buddy). It is important to understand your experimental needs before choosing...into a multi-TU targeting construct (Cas9, sgRNA, reporter, etc.). This allows for the multiplexing of sgRNAs...basic biology of and gene regulation in the opportunistic pathogen Acinetobacter baumannii (Brychcy et...used successfully for protein localization and transport studies in HEK cells, recombinant protein purification...Multi-Kingdom Golden Gate Cloning Platform.” Scientific Reports, vol. 9, no. 1, Springer Science and Business Media... -
Protocol - pLKO.1 – TRC Cloning Vector
TypeProtocol...with pLKO.1 C. Cloning shRNA oligos into pLKO.1 C.1 Recommended materials C.2 Annealing oligos C.3 Digesting...Virus may be stored at 4°C for a few days, but should be frozen at -20°C or -80°C for long-term storage...., R is a purine (A,G), and Y is a pyrimidine (C,U). G-C content should be 36-52%. Sense 3’ end should ...annealed oligo from step C.2 20 ng digested pLKO.1 TRC-cloning vector from step C.3 (If you were unable ...Store at 4°C. m. Add 5 mL of fresh media containing antibiotics to the cells and incubate at 37°C, 5% CO ...at 37°C, 5% CO 2 overnight. Day 2: b. The target cells should be approximately 80-90% confluent. c. Dilute...solution is stable at 4°C for up to one year. The powder form of polybrene is stable at 4°C for several years...