We narrowed to 490 results for: cel.2

... engineered components, like protein tags (Figure 2). Through the work of many groups, there are systems... in Addgene's repository (Table 1). Figure 2: Adding function to My Favorite Protein (MFP) through...building-blocks of living cells, rapidly forming covalent bonds to specific partners under cell-friendly conditions...using the reactive groups naturally present in a cell? By analogy to Click Chemistry, Click Biology can...the diverse kinds of proteins that one finds in cells. High yield of reaction — generating product without...reduced; in the ER and Golgi apparatus and outside the cell, most cysteines are oxidized in disulfide bonds....temperature and on ice, when we have cracked open the cells. The tools should react in all of these situations...

...linear fashion. This implies that reducing the power 2-fold does not reduce photobleaching by half. How exactly...prolonged time). Other illumination strategies, such as 2-photon-excitation, selective plane illumination, TIRF...intensity evolves over time in living cells at a power used for live-cell imaging. To conclude, the most photostable...molecule will photobleach at some point. For live-cell imaging, it is desirable to have fluorescent proteins...experiment. The best fluorescent proteins for live cell imaging can be excited many times, thereby producing...these factors, environmental conditions such as cellular redox state and oxygen concentration may affect...protein is a key requirement for quantitative live-cell imaging, it is important to be able to quantify ...

...plasmid kit consists of 20 plasmids encoding 14 alpha, 2 beta, and 4 gamma subunits of the heterotrimeric G...activation via bioluminescence resonance energy transfer 2 (BRET2). Check out our blog post on GPCR signaling...with heterotrimeric G proteins on the intracellular side of the cell membrane. Heterotrimeric G proteins...induce or inhibit intracellular signaling cascades as a response to the extracellular stimuli. Ligand dissociation...Peroxidase-Catalyzed Proximity Labeling. Cell 169:338-349.e11 . https://doi.org/10.1016/j.cell.2017.03.028 Roth BL (2016...to the seven alpha helices that transverse the cellular membrane. The receptor recognizes the appropriate...signaling is initiated when a ligand binds to the extracellular surface of the GPCR. This results in a conformational...

...increase have had that increase cancelled. Rounding out the remainder, 2% of postdocs who weren’t going...continuing with their plans, and 17 have cancelled their plans. 2 of those raising - the University of Illinois...level, in the case of some public institutions) to cancel plans to raise salaries. What are institutions ...Illinois and the University of Michigan - initially cancelled their plans, but have since reversed their position...announced that they were reversing their plans to cancel raises). A further 9 institutions, whose plans ... In addition, PIs at some of the institutions cancelling plans are going ahead with raises anyway, including...injunction, as we started to hear of institutions cancelling plans to raise salaries, the only postdocs we...

...endonuclease of a class 2 CRISPR-Cas system. Cell, 163(3): 759-771 (2015). 10.1016/j.cell.2015.09.038 Harrington...and Cas13 are 1). non-specific RNA cleavage and 2). cell toxicity. Cas7-11 does not display collateral ... Stem Cells Using Type I CRISPR-Cas. Molecular Cell, 74(5): 936-950.e5 (2019). 10.1016/j.molcel.2019.03.014...cleavage and is significantly less toxic to mammalian cells than Cas13 (likely due to the lack of collateral...

...article in the Addgene Blog Mentoring series will cover 2 of the 7 mentoring questions I set out to answer. ...101-Building Relationships for Success”. Choose 1-2 tactics to try. One of my favorites is making the ...Healthcare Businesswomen’s Association hosts an excellent group mentoring program in many of its chapters...

...PMC367857. 2. Naldini, Luigi, et al. "In vivo gene delivery and stable transduction of nondividing cells by a..., and the desired gene (transfer vector plasmid), 2) the HIV-1 genome containing all viral genes with ...protocols that have been described (protocol 1, protocol 2, protocol 3) to find the one that will give you the...-dividing cells. The ability to infect non-dividing cells is not restricted to in vitro cell culture as...target cells. If you are transducing non-adherent cells you might need to centrifuge your cells with the...favourite gene into your favourite cell line or into primary cells, this blog article will give you some...infect both dividing and non-dividing cells, including stem cells. These properties make lentiviral vectors...

...residues, which can be found throughout the antibody. 2) Endogenous cysteines, such as those that make up ...Detecting antigens by quantitative immuno-PCR. Nat Protoc 2:1918–1930. https://doi.org/10.1038/nprot.2007.267 ...and Protein Modifications in Cells and Tissues in Situ. Curr Protoc Cell Biol 89:e115. https://doi.org... like proximity ligation, immuno-PCR, and single-cell applications (Hegazy, et al., 2020; Niemeyer, et...epitope and transcriptome measurement in single cells. Nat Methods 14:865–868. https://doi.org/10.1038...

...segment on the B. subtilis libraries. Hot Plasmid 2: Transcription factor fusions modulate iPSC reprogramming...Check out additional microbiology resources Stem cell models for disease and open science: Interview with...

...somewhere else (Fig. 2). Class II TEs have LTRs on both of their ends.    Figure 2: Overview of DNA...has four major components: 1) a CRISPR RNA (crRNA), 2) four proteins (TniQ, Cas8, Cas7, Cas6) that forms... yeast, plant, insect, and mammalian cells, including human cells. piggyBac is biased to integrate at ...is active in vertebrates and integrates in human cells at rates similar to retroviral vectors. The hyperactive...piggyBac has an integration efficiency in human cells similar to retroviral vectors. The hyperactive PB...transposase (hyPB) is ~10-fold more active in mammalian cells compared to the codon-optimized wild-type piggyBac...G/C)TNA. Tol2 can deliver 10-11 kB to mammalian cells without decreased efficiency, with a maximum cargo...

...from another within a fully stained sample. Figure 2 is an example of the emission spectra for two fluorophores...another during spectral unmixing.     Figure 2: The full emission spectra for BV421 and BV711 on ...co-expression among cellular markers You’ll also need to know if markers are co-expressed in your cells when designing...immunologists, allowing for the rapid analysis of cell populations within a heterogenous tissue type, such...methods, the identification and isolation of rare cell types. In recent years, full spectrum flow cytometry...detector to detect one fluorophore and therefore one cellular marker. However, emission spectra of certain fluorophores...Spectral flow allows for autofluorescence extraction Cells produce a low level of fluorescence called autofluorescence...

...targeted DNA demethylation. Cell Discov 2, 16009. https://doi.org/10.1038/celldisc.2016.9.   ...Hrit et al. 2018, Kaas et al. 2013). Figure 2: CRISPR TET-based epigenetic editing. In reality, ...its oxidized derivatives. Cell 152, 5 P1146-1159. https://doi.org/10.1016/j.cell.2013.02.004.  Xu X, Tao...enzymatic activity cause demethylation?  Dividing cells depend on DNA methyltransferase 1 (DNMT1) to copy...methylate sites blocked by dCas9. Within a few rounds of cell division, the original methylated strand is diluted...dCas9 expression and pLM-CMV-R-Cre. Selection for cells stably and highly expressing these constructs can...can be achieved by fluorescence-activated cell sorting, and stable gRNA expression can be achieved using...

... follow the same general cyclical process (Figure 2). The differences typically come in when generating...starting point for the next cycle. Figure 2: General process of antibody directed evolution. Created...module_attribute "schema_version" is_json="true" %}{% raw %}2{% endraw %}{% end_module_attribute %}{% module_attribute...high-throughput screening techniques such as ELISA and cell surface display are common. ELISA enables quantitative...for comparing relative affinities across mutants. Cell surface display systems, such as bacterial, yeast...presentation of your mutant libraries on the surface of cells. This enables direct screening via flow cytometry...provide recombinant antibodies that target families of cell surface and secreted proteins (glypicans, integrins...

...from animals or hybridomas.   Figure 2: (Left) Figure 2: (Left) The light chain and heavy chain genes... be introduced into host cells, such as bacterial, yeast, or mammalian cells, for antibody production ...Nanobodies and recombinant binders in cell biology. Journal of Cell Biology 209:633–644 . https://doi.org...animals and bleed dates and even clonal hybridoma cell lines can produce more than one mAb (Bradbury et...plasmid or from an integrated sequence in a stable cell line. The genes encode the heavy chain and light...antibody protein binds an antigen. Image from Fvasconcellos.     How are Recombinant Antibodies Made...

...FRET signal back again. The Ting lab constructed 2 versions of this reporter to target the K9 (pcDNA3... 525.7570 (2015): 533-537. PubMed PMID: 26352475. 2. Bygren, Lars O., et al. "Change in paternal grandmothers...genes should be ‘read’ by the cellular machinery. This is how most cells in the body contain the same ...complex of DNA and histone proteins that compacts cellular DNA into chromosomes and reduces the risk of dangerous...the more compacted it becomes. This prevents the cellular machinery from physically interacting with the...visualise changes in histone methylation in living cells. Essentially this reporter construct consists of...recognise lysine 27 methylation. When tested in living cells where methylation of these sites was controlled,...

...due to the presence of additional helper sequences (2-3). As alluded to above, termination and polyadenylation...and translation processes as well.   Figure 2: The conserved eukaryotic polyadenylation signal directs...Plasmids designed to express genes in a given host cell type are generally broken down into two broad categories...purpose and mechanism of polyadenylation vary across cell types, but polyadenylation generally serves to promote... thought that poly(A)s are used to control the cellular concentration of regulatory RNAs and may additionally...additionally act as a quality control mechanism to rid the cell of mis-folded RNAs. Eukaryotic termination and polyadenylation...signal by using in vitro analyses. Molecular and Cellular Biology. 1992. PMID: 1333042. PubMed Central PMCID...

... Zetsche et al., Nat Biotechnol. 2015 Feb 2;33(2):139-42. doi: 10.1038/nbt.3149. Light-inducible ...and on your favourite signalling pathways (Figure 2). They are all available now at Addgene. 1 Lungu...20;19(4):507-17. 10.1016/j.chembiol.2012.02.006. 2 Guntas et al., Proc Natl Acad Sci USA 2015 Jan 6; ...Nihongaki et al., Chemistry and Biology. 2015 Feb 19; 22(2):169-74. High efficiency cloning for enzyme screening...inducible, gene knockdown with shRNA or shRNA-miR30, (2) tamoxifen-inducible CreERT2 gene deletion, (3) simultaneous...different fluorescent proteins, 8 constitutive promoters, 2 includible promoters, 3 polyA terminators and various...of plasmids required for each input/output system; 2) removing all chemically inducible promoters; 3) improving...

...and scholarships in different subject areas!    2. Resume and cover letter know-how  Tailor your resume...4. Letters of recommendation wisdom  Reach out to 2-3 individuals in your professional circle to vouch...college. Prior to March 2020, internships were a fiercely competitive endeavor. Due to the COVID-19 pandemic...

...The groups in these programs typically consist of 1-2 mentors and 3-5 mentees who meet together for an 8... together. If you all work at the same place, a 1-2 hour lunch on a regular schedule might work. If not...do once you are in a mentoring relationship.  Celebrate your successes and support each other as you transition...

...Central PMCID: PMC3760253. 2. Rohwer, Forest. "Global phage diversity." Cell 113.2 (2003): 141. PubMed ... digest and compare it to some reliable controls. 2. Viral stocks may be sensitive to freeze thaw cycles...contaminating your transduction with the packaging cells. Packaging cell debris can be removed either by filtration... you can reduce the volume of cell culture medium on the packaging cells immediately following transfection...efficiency in cells that are sensitive to the toxicity of polybrene (e.g., hematopoietic or primary cells), and... the packaging cells after 1–3 days of selection. A lower percentage of surviving cells may be the result...adeno-associated virus transduction of cells." American Journal of Physiology-Cell Physiology 291.2 (2006): C386...