We narrowed to 725 results for: Cel

...fluorescent proteins available. Fortunately, several excellent reviews have collated data from various papers... monitoring sensitized emission in living plant cells." (2013). PubMed PMID: 24194740. PubMed Central ... alters the FRET efficiency. Detecting certain cellular changes with an intermolecular probe is often ...Miyawaki et al., 1997), was designed to measure intracellular calcium and published in 1997. Since that time...of labs to answer sophisticated questions about cellular processes. Currently, FRET experiments can probe...concentration or activity of small molecules, detect cellular processes and signaling cascades, quantify mechanical...-molecule FRET for imaging biomolecules in live cells (Sustarsic and Kapanidis 2015), which may lead to...

...measuring protein expression or localization in cells, or even single-particle tracking of the bound complex...) for use with GFP(11) Multiplexed labeling of cellular proteins with split fluorescent protein tags. ...(1–10) and GFP(11) Versatile protein tagging in cells with split fluorescent protein. Kamiyama et al. ...pairs with sfCherry2(11) Multiplexed labeling of cellular proteins with split fluorescent protein tags. ...tracking of protein-protein interactions in living cells. Shao et al. Commun Biol. 2021 Yujie Sun   For...bright enough for single-molecule tracking in live cells.  Controls  When designing experiments, it’s important...

...its oxidized derivatives. Cell 152, 5 P1146-1159. https://doi.org/10.1016/j.cell.2013.02.004.  Xu X, Tao...targeted DNA demethylation. Cell Discov 2, 16009. https://doi.org/10.1038/celldisc.2016.9.   ...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...TETs compete with DNMT3 activity in pluripotent cells at thousands of methylated somatic enhancers. Nat...

...Genome-wide Inhibition Library. DNA and cell amounts After deciding on a cell type, you will need to determine...DNA and how many cells to use for your transformation(s). The amount of competent cells you need total ... generally electroporated into electrocompetent cells to ensure the highest possible transformation efficiency...efficiency. Using Stbl4 or other ultra-high efficiency cells ensures that plasmid diversity in the library is...transformation may vary depending on the particular type of cells you are using, as well as other factors, such as...transformations, such as splitting 400 ng of DNA in 100 μL of cells over four individual electroporations. The specifics...do see recombination, we recommend ensuring the cells used are meant for repetitive sequences (such as...

...infects host cells through binding the human angiotensin converting enzyme 2 (ACE2) cell-surface receptor...antigenic drift.    Starr et al Cell. 2020. https://doi.org/10.1016/j.cell.2020.08.012  Starr et al Science...Library generation and sequencing. From Starr et al Cell., 2020. (B) Mapping antibody-escape mutations with... SARS-CoV-2 spike RBD is displayed on the yeast cell’s surface. The Bloom lab used the library to identify... candidates were validated by IP-MS using HEK293 cell lysate where the antigens would be in their native...immunoprecipitate the entire complex in three different cell lines. The Gräslund lab plans to continue their ...protect proteins from unfavorable interactions in the cell, improving biosynthetic pathway yields by stabilizing...

...metabolite in a cell. The only way to do that at scale right now is to grow up a bunch of cells, sacrifice ...capable of storing data and computing inside living cells. He's also a co-founder of the BioBricks Foundation...transistor-like digital genetic switches that enable cellular computing. These logic gates built from transcriptors...as an operating system for engineering an entire cell. Typically when people use plasmids, they are trying... you could imagine engineering the entirety of a cell. That's a big long-term technical challenge. We ...That's central to everything that goes on inside a cell. Until we get a handle on precise, forward engineering...scale, it's going to be tricky to tame the rest of a cell. The BIOFAB plasmids represent the first systematic...

...used. The Fujii lab demonstrated this in mammalian cells by expressing dCas9 with an N-terminal 3xFLAG tag...studies (Fujita et al., 2018). In addition to the "in cell" form of this method, in which an engineered DNA-binding...molecule such as the CRISPR complex is expressed in cells to be analyzed, the Fujii lab also developed another...recombinant CRISPR ribonucleoproteins." Genes to Cells 21.4 (2016): 370-377. PubMed PMID: 26848818. Fujita...between genomic regions by enCh IP‐Seq." Genes to Cells22.6 (2017): 506-520. PubMed PMID: 28474362. Fujita...‐dC as9 protein for enCh IP analysis." Genes to cells 23.4 (2018): 318-325. PubMed PMID: 29480524. Gilbert...RNA-guided regulation of transcription in eukaryotes." Cell 154.2 (2013): 442-451. PubMed PMID: 23849981. PubMed...

...reach essentially every cell or else small pools of antibiotic resistant cells could repopulate the environment...strategies are nonspecific - they harm any bacterial cell without a resistance gene, allowing resistant bacteria...antibiotics target one of three essential processes: cell wall synthesis, DNA replication, or protein synthesis...eliminated from the bacterium, which may also induce cell death. CRISPR also enables increased specificity...Treating a mixed population, represented here by cells of different colors, specifically targets bacteria...bacteria. Targeting a genomic sequence results in cell death. Plasmid targeting may result in plasmid loss...and antibiotic resensitization, or may also cause cell death. Image from Beisel et al., licensed under ...

...entire proteome of a particular cell type, or a subset based on a cellular compartment or growth stage)....extensively to screen for molecular interactions in the cell, including protein-protein, protein-DNA and protein-RNA...field of eukaryotic transcriptional activation and cell biology. During this period, proteins were successfully...The reporter gene then allows detection of those cells where binding between the proteins of interest has...alternative fungi (C. albicans, pC2HB) (7) and mammalian cells. If the problem is that your proteins are not post-translationally... DNA and activate a reporter gene in eukaryotic cells, fusion proteins must gain access to the nucleus... the DNA specificity of a prokaryotic repressor. Cell. 1985; 43:729-736. PubMed PMID: 3907859. 4. Fields...

...Xenopus frog cell lines to develop robust methods for frog gene editing. They edit in a cell line, then ...is the smallest photosynthetic cell in existence, but most abundant cell on earth (twice the human biomass...only 1,700 genes total). Hydra (Celina Juliano) This is a known stem cell and regeneration model. Little...Mormyridae (Jason Gallant) Weakly electric fish are excellent systems to study for convergent evolution because...Hawaiian bobtail squid has an extreme number of nerve cells and an unusually high level of RNA recoding in the...using novel vesicles to efficiently transform these cells which don’t like foreign DNA at all (maybe because...

...Syndrome and Related Disorders. Cell 152:984–996 . https://doi.org/10.1016/j.cell.2013.01.038 Guy J, Gan J, ...Programmable RNA Editing. Cell Reports 32:107878 . https://doi.org/10.1016/j.celrep.2020.107878 Sinnett SE...deliver the precise amount of protein to each brain cell to restore physiological levels. Much research is...repair a gene in a living animal across multiple cell types using a mouse model for a human neurological... that enough wild-type MECP2 is made inside the cells, but this is exciting progress in tackling the root...Resource Center. Researchers can also find links to cell line repositories including patient-derived iPSCs...Modifications in Human-Induced Pluripotent Stem Cells. Front Genet 10: . https://doi.org/10.3389/fgene...

...construct and then introduce both plasmids into the cell. The edit in the chromosome can now take place. .... After editing, pTargetF can be cured from the cell by inducing expression of the sgRNA that targets ...all the edits you want, cure pCas9 by growing the cells at 37 °C.     The new pEcCas/pEcgRNA system We ... to take place. Then plasmids are cured from the cell. Steps 1-1 and 1-2 can be done simultaneously. Image... Chinese Academy of Sciences (CAS) Center for Excellence in Molecular Plant Sciences in 2019. She joined... intern at the Yang Lab of the CAS Center for Excellence in Molecular Plant Sciences since December 2020...tools for faster construction or reprogramming of cells to understand the genetic and biochemical mechanisms...

... light sensitive proteins (opsins) to manipulate cell activity, enables researchers to silence or incite...channels that allow charged particles to cross the cell membrane when exposed to light. Neuronal firing ...channel LiGluR both cause ion movement that results in cell depolarization. They therefore function as a neuron...in negative chloride ions which hyperpolarize the cell. It therefore functions as a neuron “off switch....They found that photostimulating the Kolmer-Agduhr cells was sufficient to trigger the symmetrical tail movement...forward swimming. Furthermore, only Kolmer-Agduhr cells on one side of the body required photostimulation...symmetrical response.  The function of Kolmer-Agduhr cells had previously been a mystery, but through the control...

... to environmental conditions, cells must be able to detect extracellular stimuli. One way they do so is...bound to the intracellular surface of the GPCR. Binding of a ligand to the extracellular surface of the...complex converts a signal received by a GPCR on the cell’s surface into action that can result in the initiation...number of signaling cascades, inducing different cellular responses. One of the biggest advantages of such...protein transducers. To use the TRUPATH system, cells are transfected with plasmids expressing the GPCR... and the appropriate Gγ-GFP2 and Gβ constructs. Cells are then treated with the luminescent enzyme substrate...

...specific tissues, cell types or even subcellular regions of a neuron. Optogenetic approaches excel at discrete... excel at broad tissue or system-wide targeting, as the ligand can reach target cells throughout the body...discrete cell or tissue-subregion targeting down to the limits of light delivery. Chemogenetic approaches excel... and chemogenetic tools need to be delivered to cells, commonly through viral delivery by AAV. You can...Further restricted to illuminated region Impacts all cells expressing receptors Invasiveness Mice require...

... small circular piece of DNA found in bacterial cells, and someone new to plasmids may need some extra...and designed to introduce foreign DNA into another cell. Minimally, lab-created plasmids have an origin ...the ability of plasmids to self-replicate within a cell make them attractive tools for the life scientist...component for expression vectors: determines which cell types the gene is expressed in and amount of recombinant...plasmids also have selectable markers for use in other cell types. Primer Binding Site A short single-stranded...newly inserted gene is transformed into bacterial cells and selectively grown on antibiotic plates.  Importantly...plasmids to manipulate gene expression in target cells. Characteristics such as flexibility, versatility...

...proteins enable the observation of proteins in living cells and organisms. Both components of the chimera are...However, these may not reflect the situation in cells. Therefore, the localization of critical fusions...currently the standard for assessing oligomerization in cells. In addition to measuring stickiness, several researchers...fluorescent proteins that behave as monomers in mammalian cells include: mTurquoise2, mEGFP, mNeonGreen, mScarlet...protein to the existing pool of protein within a cell and may lead to over-expression artifacts. This ...heterotrimeric G protein Gq activation in living cells." BMC biology 9.1 (2011): 32. PubMed PMID: 21619590...activation of heterotrimeric G-proteins in living cells." Science 291.5512 (2001): 2408-2411. PubMed PMID...

...carboxyl groups to organic acids to produce important cellular metabolites. Biotin acts as a carboxyl carrier...chemically. Enzymatic biotinylation occurs naturally in cells and is the process by which biotin is covalently... Immunosorbent Assay) Southern/Northern blotting Cell surface labelling Attaching polypeptides to a substrate...substrate Flow cytometry/fluorescence-activated cell sorting (FACS) In situ hybridization Methods for...proteins in bacteria, yeast, insect and mammalian cells. Check out Kay et al., 2009 for methods on biotinylating...Application of avidin-biotin technology to improve cell adhesion on nanofibrous matrices.” Journal of Nanobiotechnology...purification of tagged transcription factors in mammalian cells and transgenic mice.” PNAS 100.13 (2003):7480-5....

...imaging with single-cell resolution using chemical cocktails and computational analysis." Cell 157.3 (2014):... of the XFP genes is introduced at ~2 copies per cell per color, following a Poisson distribution. To ... optimal expression of XFPs. Any longer and the cells may start to show morphological abnormalities due...XFP genes have to be introduced at ~2 copies per cell per color to achieve the highest color variations... wait too long, as too much XFP is toxic to the cells. Inadequate expression levels of XFPs - Reduce the...video below depicting dendrite wiring of mitral cells.   Many thanks to our guest bloggers Richi Sakaguchi...circuitry with an index-optimized clearing agent." Cell reports14.11 (2016): 2718-2732. PubMed PMID: 26972009...

...coordinated by the eukaryotic cell for the execution of many complex cellular behaviors, such as differentiation...or metabolism. Our attempts to manipulate these cellular behaviors often fall short with the generation...toxic intermediate buildup as well as controlling cell fate decisions. By using an orthogonal dCas9 protein...for sequence-specific control of gene expression. Cell, 152(5), 1173-1183. (2013). PubMed. Zalatan, J...Transcriptional Programs with CRISPR RNA Scaffolds. Cell, 160(1), 339-350 (2015). PubMed. Find the Plasmids...crispr/qi/ Plasmids described in  Zalatan et al. Cell  (2015) can be found here: https://www.addgene.org.../article/9593/ Plasmids described in Qi et al. Cell  (2013) can be found here: https://www.addgene.org...