We narrowed to 663 results for: cat.2

...calcium indicator, OCaMP (Aggarwal et al., 2025), based on the fluorescent protein mOrange2 (Figure 2). ... Figure 2: OCaMP structure and mechanism of action. Reproduced from Aggarwal et al. 2025 under ...module_attribute "schema_version" is_json="true" %}{% raw %}2{% endraw %}{% end_module_attribute %}{% module_attribute...potential (AP) spiking events are indicated below the trace; asterisk indicates a single AP. B) Averaged fluorescence...past few decades, genetically encoded calcium indicators (GECIs) have become a vital tool in neuroscience...toolbox, our team recently developed a new calcium indicator, OCaMP. The challenge: Expanding the fluorescent... signals in the brain. For this to work, each indicator needs to emit a different color of light and be...

... professionally, and 2) I needed to start using Twitter. Sharing Chemistry Cat memes use to be how ... writing for the Addgene blog, sharing Chemistry Cat memes was how I used social media as a scientist....but my consistent writing for the Addgene blog (~1-2 blog posts per month) and use of Twitter and LinkedIn...PhD 👩🏾‍🔬💜 (@ThePurplePage) February 13, 2014 2. "The Scientist's Top 10 Guide to Twitter" blog post...you social media can positively impact your career, 2) given you tips for using various social media platforms...remotely as an Addgene Science Communication Intern. Developing science communication skills, while also learning... on a panel about “Social Media for Science Communication” at the American Society for Cell Biology (ASCB...

...tropism, replication kinetics, and cell damage profiling of SARS-CoV-2 and SARS-CoV with implications for ...endeavor. Case study 2: Plasmids Another example of reagents that have broad applications but have proven ...used in a publication by Xiuyuan Ou, et al. that characterized the spike (S) protein of SARS-CoV-2 (Ou et.... This publication then resulted in the development of a new plasmid, pCMV14-3X-Flag-SARS-CoV-2 S, which...fast access to the tools required to study SARS-CoV-2, but with many academic research labs closed during...biobanks, are crucial for the advancement of SARS-CoV-2 research because they provide rapid access to validated...Many of the reagents used to investigate SARS-CoV-2 were developed for broad use and are now important...

...discussed them in meetings and 2) creating a pictorial guide for our engineers (Fig. 2). Creating this guide was...in improving cross team communication has helped Addgene move from completing 2-3 large projects a year.... I needed to a) figure out the sources of miscommunication and b) find practical solutions.  My PhD ... for this task. Good scientists learn how to communicate their work differently based on their audience... family is going to vary widely. The way you communicate your science at a poster is going to vary depending...two main problems with Addgene’s cross team communication. Although these real world examples did not ... for the container to be used in cross-team communication A list of “AKA” names, or jargon terms, for ...

...AAV2 vectors in the mouse retina. Mol Ther . Feb;19(2):293-301. PMID: 21045809 Other citations include: ... any application Balanced Salt Solution (BSS) An ophthalmic solution suitable for any application TMN200...ordering information. ID Name Promoter Description Category PI 157970 pTR-UF11 chimeric CMV/Chicken Beta actin...When using the AAV2(Y444F) serotype in future publications, please acknowledge Arun Srivastava and cite...When using the AAV2(trpYF) serotype in future publications, please acknowledge Arun Srivastava and cite... using the AAV2(4pMut)dHS serotype in future publications, please acknowledge Shannon Boye and cite Boye...using the AAV6(dbY-F+T-V) serotype in future publications, please acknowledge Arun Srivastava and cite...

...neoblast cells and the gene Prohormone convertase 2 (pc2) labels the central nervous system. Evaluating... characterized in an unrelated worm (C. elegans) [2]. Delivering dsRNA matching a specific mRNA sequence...223). Link: http://abt.ucpress.edu/content/79/3/208 2. Fire, S. Xu, M.K. Montgomery, S.A. Kostas, S.E. Driver...DE3. For Phagocata morgani and Phagocata gracillis, the process is a little more complicated. These strains...Girardia sp., Dugesia dorotocephala, Phagocata morgani, and Phagocata gracillis. There are 11 different ... coli. Thus, to get the dsRNA into Phagocata morgani and Phagocata gracillis, one has to purify the dsRNA... in situ hybridization experiments. A recent publication [1] from the Sánchez lab describes the plasmids...

...repository of tools for SAR-CoV-2 research. Two new antibodies, Anti-SARS-CoV-2 Nucleocapsid Protein [mBG17...Anti-SARS-CoV-2 Nucleocapsid Protein [mBG86], target distinct epitopes on the SARS-CoV-2 nucelocapsid ...Anti-SARS-CoV-2 Antibodies here! Terry, J.S., et al. (2021). Development of a SARS-CoV-2 nucleocapsid ...prime editor PE7 Antibodies to facilitate SARS-CoV-2 research New viral vector preps of Voltron2 voltage... incorporates La’s N-terminal domain, PE7 (Figure 2).  PE7 shows enhanced editing efficiencies in a number...editor. Find PE7 plasmids here!     Figure 2: PE7 improves prime editing. A) Schematic of PE7 prime...PMID: 38570691. Antibodies to facilitate SARS-CoV-2 research   By Ashley Waldron Ready-to-use recombinant...

...pLVX-EF1alpha-SARS-CoV-2-N-2xStrep-IRES-Puro: Expression of the SARS-CoV-2 N protein  pLVX-EF1alpha-SARS-CoV-2-M-2xStrep-IRES-Puro...SARS-CoV-2 M protein pLVX-EF1alpha-SARS-CoV-2-orf3a-2xStrep-IRES-Puro: Expression of the SARS-CoV-2 ORF3a... SARS-CoV-2 protein expression The Krogan lab quickly shared plasmids expressing SARS-CoV-2 proteins at...pLVX-EF1alpha-SARS-CoV-2-E-2xStrep-IRES-Puro) and NSP2 (pLVX-EF1alpha-SARS-CoV-2-nsp2-2xStrep-IRES-Puro...months: Lentiviral preps for expressing SARS-CoV-2 proteins ChR2 for targeted expression DREADDs GFP ...Serotype Name 83899 AAVrg pAAV-mDlx-GCaMP6f-Fishell-2  Additional resources on the Addgene blog Read...availability date or to be notified when a particular catalog item is available for order please email [email protected]...

... to isothermal amplification by primers that target the E and the N2 gene of SARS-CoV-2. If the Cas12a-sgRNA...case of HIV-1 and SARS-CoV-2 detection, AIOD-CRISPR without preamplification was able to detect as low ... State University. Since its appearance, SARS-CoV-2 has spread to almost every part of the world manifesting...Rapid detection of 2019 novel coronavirus SARS-CoV-2 using a CRISPR based DETECTR assay Sensitivity:10-... method has been optimized to detect the SARS-CoV-2 virus directly using saliva without having to perform...and visual detection of novel coronavirus SARS-CoV-2 Sensitivity: 4.6-11 copies/microliter of RNA targets...easy-to-deploy, protocol for Cas13-based detection of SARS-CoV-2 genetic material (CREST) Sensitivity: 10 copies of...

....9 (parental) 46 +/- 0.7% AAV.PHP.S 82 +/- 2% Table 2: Transduction efficiency of AAV.9 versus AAV.PHP.S...figure 2) to allow for efficient IV delivery of virus to the CNS or PNS (figure32, tables 1 & 2). These...because: 1) their genomes are easy to manipulate, 2) they have long-term expression; and 3) they have ... On average, AAV.PHP.eB and AAV.PHP.S had 1.5- to 2-fold higher GFP intensity compared to the strains ...stained for a neuronal marker). Check out tables 1 and 2 below for a summary of the quantified transduction...cells are labeled with their own unique color; and 2) low levels of labeling so that a cell’s projections...maximize the number of cells that are labeled. Part 2: An AAV expressing the inducer (i.e. tet-off transactivator...

...the image can be acquired more quickly. 2-Photon Microscopy 2-Photon Microscopy attempts to solve two ...Fluorescence microscopy. Nature methods 2, 910-919 (2005). PubMed PMID: 16299476. 2. Conchello JA, Lichtman JW. Optical...enhance spatial contrast (i.e. optical sectioning (2) or super-resolution (3). Fluorescence microscopy...photobleaching and a reduction in signal intensity. 2-Photon microscopes restrict excitation (and bleaching...can be seen exiting through the tissue. Therefore, 2-photon allows for deeper imaging into thick tissues...imaging objective that collects fluorescence. Like 2-photon microscopy, only a single focal plane of the...relying on raster scanning as is done in confocal or 2-photon microscopes. Total Internal Reflection Microscopy...

...Illustration of SARS-CoV-2 from Philippa Steinberg for the IGI.   What SARS-CoV-2 plasmids from Ginkgo ...intended for the high level expression and purification of SARS-CoV-2 proteins for downstream experiments and...and codon optimized, full length and truncated versions of SARS-CoV-2 S (spike protein) cloned into a CMV...Bioworks to synthesize and share over 1,850 SARS-CoV-2 plasmids to help academic and industrial labs accelerate...request? Currently, plasmids containing all SARS-CoV-2 protein coding genes in E. coli and S. cerevisiae ...bacterial expression systems, Ginkgo synthesized SARS-CoV-2 expression plasmids in a high copy backbone with a...first deposited set of plasmids containing SARS-CoV-2 protein coding genes in E. coli and S. cerevisiae ...

...comprehensive SARS-CoV-2 virus-human interaction network in which we expressed 26 of the 29 SARS-CoV-2 viral proteins...SARS-CoV-2 viral proteins except for Nsp3 and Nsp16, and includes an additional catalytically dead version...all became acutely aware of the threat of SARS-CoV-2. Like many in the science community, we’ve been motivated...identifying these potential human helpers of SARS-CoV-2 (especially the ones that are druggable) is a key ...just at the beginning of understanding how SARS-CoV-2 interacts with human proteins. For example, we used... joining in this worldwide fight against SARS-CoV-2. As we’ve all been affected in various ways by the...is going on there!).  Find the Krogan Lab SARS-CoV-2 plasmids (Note: The Nsp6 construct is undergoing QC...

...Golden Gate TALEN Kit and are used in place of pTAL1, 2, 3, or 4. For both plasmids sequence positions 1214...Golden Gate TALEN kit. The GoldyTALEN scaffold is truncated at both the N and C terminus and induces mutation...pC-GoldyTALEN directs expression of TALENs from a truncated CAGs promoter. RCIscript-GoldyTALEN is designed...in vitro mRNA synthesis from the T7 promoter. Truncations were introduced to the N- and C-terminus of the...Golden Gate TALEN 2.0 48705 pTAL7a Boris Greber Application of TALEN technology in hPSCs pTAL7a and pTAL7b...expression in mammalian cells, (iv) an improved, truncated TALE backbone architecture as established by Miller...

... non-physiological, and difficult to ignore [1, 2]. 2. Fusion to an obligate dimer or oligomer Several...Biol, 2003. 163(2): p. 257-69. PubMed PMID: 14581454. PubMed Central PMCID: PMC2173526. 2. Zacharias, D.... nature are prone to dimerization (i.e. EGFP) [1, 2] or even form obligate tetramers (i.e. DsRed) [3]....form dimers in a cell. The Kd of EGFP is 0.11 mM [2]. Following the simple logic outlined above, you might...organized smooth endoplasmic reticulum (OSER) whorls. 2)A dimerizing protein of interest fused to a dimerizing... designed to detect resulting in false positives [2, 4]. Solutions to the polymer problem There are some...Citrine) can be monomerized with an A206K mutation [2]. Addgene has many of these constructs and they are...

...status of MEK1/2 was tracked at 5 minute intervals via Western blot. Phosphorylation of MEK1/2 peaks at just... phosphorylated MEK1/2 levels, suggesting PP1/PP2A is responsible for this MEK1/2 negative feedback. ...PubMed PMID: 28232577. Figures 2-4 were modified from this reference. 2. Regot, Sergi, Jacob J. Hughey...precisely control the timing of kinase activity. 2. Studying negative feedback loops of signaling pathways... studied the negative feedback on endogenous MEK1/2 phosphorylation by creating a short pulse of psRaf1...activity. They did this by exposing psRaf1 to a short 2 minute pulse of 500 nm light (turn on psRaf1) followed...members of their pathways, but where the kinases are located, their signal strength, and how long their signals...

...in mind (Table 2). Table 2: Sustainability features highlighted in plasmid purification kits Kit Series...debris”; and then clean-up the plasmid DNA (Figure 2). For most kits, the steps for lysing cells and removing...together — no mixing and matching!   Figure 2: Plasmid isolation workflows are similar across kits...column-based DNA purification methods perform well in terms of quality and yield. Bead-based purifications tend to...standard purification kits, there’s a range of specialty kits available for plasmid purification. Kits can...optimized for purification of these large plasmids, while others have suggested modifications to their normal...you’re new to using purification kits, or if you’re struggling with a purification, reading the full instruction...

...increase in virus. Purification (2 days) - Purification is required if rAdV is to be used in vivo. The standard...incubation as it will result in very low titer. Amplification (1-2 weeks) - The rAdV-S is used to infect more... this “cytopathic effect.” Amplification can be repeated multiple times (2-4 rounds) at increasing scale...scale over the course of 1-2 weeks. Each round of amplification should result in a 10-100-fold increase...creating adenoviral vector constructs. It consists of 2 plasmids: a shuttle vector (in which the transgene...Addgene’s Adenoviral Guide webpage, and references 1, 2.*Pro-Tip*: once the correct recombinant pAdV plasmid...sequenced to confirm its integrity. Initial production (2-3 weeks) - Here you’ll produce the primary recombinant...

...the resulting fraction is reported. Figure 2: Normalization with loading controls. Under each lane...control band is weaker in condition 1 than condition 2, the normalized values for the two conditions are ...opposite change in your loading control. Assumption #2: The loading control can be accurately quantified ...significantly lighter in “condition 1” than “condition 2.” By eye, the loading control appears about the same...) are smaller than the analogous green “condition 2” points by the exact same value. For the two solid...consider a different loading control. Assumption #2: The loading control can be accurately quantified ...factors we’ve covered in our previous blog posts (1, 2) on western blotting. If the abundance of your POI...

...cancer. These viruses need to be handled in a BSL-2 (or BSL-2+) lab and require additional safety measures.... BSL-1. In BSL-2 labs, eye protection is required any time you have to work with BSL-2 materials, such...diseases in humans, earning this virus a BSL-2 classification. Lentivirus (a type of retrovirus) and gamma...recommended or required in BSL-1 and required in BSL-2 labs. When working with lentivirus, many organizations...sprayed into the air. For lentivirus and other BSL-2 materials, you’ll need to use aerosol-tight caps, ...percentage of the decontaminate to be used for BSL-2 waste, and of course, if you are working with a substance...host genome, the virus is replication incompetent, meaning it can’t replicate and continue the infection...