We narrowed to 61 results for: eukaryotic cell

... want to make sure your cells have first reached an appropriate density. Cells in the exponential growth...collecting dead cells, and, conversely, you cannot induce too early as there are not enough cells in the culture...host protein, using up valuable resources in the cell thus leading to slowed growth. Additionally, some...mB-) gal dcm (DE3) pRARE2 (CamR) Expression of eukaryotic proteins Lemo21 (DE3)* Chloramphenicol (pLemo...such as TB or 2XYT is optimal because of the high cell-density they support; however, minimal media supplemented...

...The field of induced pluripotent stem cells (iPSCs) has been around for 10 years. In that time, scientists...Pluripotent Stem Cells by Direct Delivery of Reprogramming Proteins." Cell Stem Cell 4, no. 6 (2009): ...Jaenisch. "Induced Pluripotent Stem Cells Meet Genome Editing." Cell Stem Cell 18, no. 5 (2016): 573-86. PubMed... express a cocktail of stem cell reprogramming factors and wait for cells to de-differentiate. However...transgene-free and vector-free cells Genome integration Need to sequence cells to verify excision didn’t ...vector-free cells No genomic integration Can be difficult to fully remove virus from cells Plasmid Non-integrating...transduces a wide range of cell types and replicates in the cytoplasm independent of the cell cycle. A challenge...

...lipopolysaccharide of the cell wall of Gram negative bacteria like E. coli that affects tissue culture cell line viability...introduces transformation grade plasmids into a bacterial cell. Transformation grade DNA  Transformation is ...transformation of chemically and electrocompetent cells is minimal (picogram range). It can be extracted...to insert recombinant DNA from prokaryotes or eukaryotes into a synthetic vector that can have a plasmid...Figure 3: Need to introduce plasmids into mammalian cells? Use transfection grade DNA. Transfection is ...process of inserting an external plasmid in mammalian cells and it will likely require micrograms of plasmid...

... that converts sucrose into a toxic metabolite. Cells that have undergone a double crossover will not ...contain sacB, allowing them to grow on sucrose. Cells that have only gone through the single cross over... from Harvard. Jake received his MD and a PhD in Cell and Molecular Biology from the University of Pennsylvania...Liljeruhm, Josefine, et al. "Engineering a palette of eukaryotic chromoproteins for bacterial synthetic biology...

...hijacking the machinery of the cells they infect. Once they enter a cell, they treat their viral genome...genome as a “payload” that is delivered to the cell. The cell then uses its own machinery to replicate the...still kill the infected cell.) This is in contrast to bacteria and eukaryotes, which use a binary replication...replication process whereby one cell copies itself and “splits” into two cells. Viral vectors Viruses are ...virus. From one, come many After a virion infects a cell, the single particle creates many copies of itself...millions of new copies, which are released from the cell like baby spiders from an egg sac. (Okay, some enveloped...means the vector can deliver a genetic payload to a cell but cannot create new particles. As a bonus, this...

... small circular piece of DNA found in bacterial cells, and someone new to plasmids may need some extra...bacteria, but also exist naturally in archaea and eukaryotes such as yeast and plants. In nature, plasmids...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...

...fluorescence-activated cell sorting (FACS). This is not possible in plants outside of limited, single cell protoplast...number. RNA interference (RNAi) is a conserved eukaryotic process where approximately 20-30 nucleotides...reflected the scope of genes known to be essential for cell growth. Together, this excellent work highlights...visually identified subpopulation. For traditional cell culture, enriching your active RNAi subpopulation...where he investigated how plants achieve polarized cell growth in the lab of Luis Vidali. For his next adventure...Screens for Effective Gene Silencing in Plants. Plant Cell 25:1507–1522 . https://doi.org/10.1105/tpc.113.112235...Augmin in Phragmoplast Microtubule Generation. Plant Cell 24:1478–1493 . https://doi.org/10.1105/tpc.112.098509...

... be stable in the cell. gDNA guides will also need to be transfected into the cells of interest. In contrast...learn more! Background: Argonaute and NgAgo In eukaryotes, Argonaute proteins play an important role in...unable to show TtAgo-mediated cleavage in mammalian cells, likely due to high temperature requirements. To...plasmid and genomic DNA in a variety of mammalian cell lines, with an efficiency similar to that of Cas9...

...plant protein TIR1 in non-plant cells, which interacts with the cells’ endogenous ubiquitin ligase, the...sequence and ultimately its degradation. While other eukaryotes don’t naturally have this response, they do contain...translate AID to yeast, as well as mammalian and human cell lines (Nishimura et al., 2009, Natsume et al., 2016...based method to tag endogenous proteins in HCT116 cells with mAID. Using this method, the lab was able to... protein of interest to create conditional human cell lines. Lastly, the Kanemaki lab demonstrated that...the target sites adjacent to an NG PAM in human cells. The increased versatility of the engineered SpCas9... just a 2-D linear molecule snaking through our cells’ nuclei--our chromatin is comprised of thousands...

...transfected cells may be considered an entirely new cell line from that of the original parental cells. Positive...cultured mammalian cells. Of course, these mammalian vectors must be compatible with the cell type they are...bacterial cells); however, the techniques and reagents vary. Plasmid transfection into mammalian cells is fairly...expression levels in the cells. Ideally, the chosen reporter is unique to the cell, is expressed from the...components expressed in trans within the cell for effective replication. Cell lines expressing the Epstein–Barr...mammalian cells To achieve stable transfection, there should be a selective pressure to force cells to incorporate...(basically growing cells in various concentrations of the selection reagent). Cells should die within ...

...within an E. coli cell, but vectors can be widely utilized across many different cell types and each one... yeast vectors? Yeast are eukaryotes and thus contain complex internal cell structures similar to those... the yeast cell. These elements control not only the number of plasmids found in each cell, but also whether...components to allow shuttling between E. coli and yeast cells. To be useful in the lab, the vectors must contain...replication (ORI) and a means of selection in yeast cells, in addition to the bacterial ORI and antibiotic...determines plasmid copy number within the bacterial cell. Similarly, the specific ORI elements included within...plasmid) allows for 50+ copies to stably propagate per cell. The copy number of these vectors can also be controlled...

...mammalian cells within the dish. This is caused by the stochastic nature of plasmid uptake by cells. To correct...variation observed in mammalian cells is to tag an endogenous gene. By imaging cells (or tissues) that produce...intended application. The three key properties for live cell imaging that will be treated in this series of posts...biological system (temperature, prokaryote versus eukaryote, background fluorescence). Determining practical...practical brightness When a dish of mammalian cells is transiently transfected with a plasmid containing a ...allows for a precise determination of brightness in cells, under realistic experimental conditions. By determining...al (2017) and Heppert et al (2016). In mammalian cells this would be possible with CRISPR/Cas-based genome...

... GFP, enabling you to select cells with high GFP expression. These cells have the highest levels of Cas9... on the same plasmid, you’ll make sure that each cell that gets the plasmid contains all of the desired...polycistronic glycine tRNA-gRNA (PTG) constructs. Eukaryotic RNases P and Z recognize the tRNA sequences, ...gRNA, which causes hypopigmentation, thus marking cells that have undergone genomic modification. In this..., et al. “Multiplex genome engineering in human cells using all-in-one CRISPR/Cas9 vector system.” Scientific...

...analyzing autophagy of cytosol and organelles in yeast cells. Autophagy (Greek for “self-eating”) is induced ...radio-labeled long-lived proteins as a proxy for autophagy. Cells are cultured with isotope-labeled amino acids for...fluorescence regardless of its localization in the cell. SEP’s pH sensitivity means Rosella will fluoresce...measurements of macroautophagy and mitophagy in mammalian cells using a single fluorescent biosensor. Scientific...(2010). Methods in Mammalian Autophagy Research. Cell,140(3), 313-326. doi:10.1016/j.cell.2010.01.028....Autophagy. Methods in Enzymology Autophagy: Lower Eukaryotes and Non-Mammalian Systems, Part A, 33-42. doi...

..., peptides, amino acids, drugs, metal ions, and cells (even pathogenic bacteria). That range is possible... combination of SELEX and fluorescence-activated cell sorting (FACS) of E. coli transformed with aptamer...and FACS, Broccoli is inherently more stable in cells. The new aptamer also has a higher melting temperature...dependence. Though initially still unstable in eukaryotes, the Jaffrey lab has since developed new RNA-...cassettes, thereby extending their use into mammalian cells. They’ve also dimerized Broccoli to further enhance...Multicolor CRISPR labeling of chromosomal loci in human cells.” Proc. Natl. Acad. Sci. USA 112(10) (2015): 3002...Aptamers as a Tool to Study RNA-Modifying Enzymes.” Cell Chem Biol. 2016 Mar 17;23(3):415-25. PubMed PMID...

...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...for the study of basic evolution of fungi and eukaryotes and includes the fungus that is killing frogs...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...total). Hydra (Celina Juliano) This is a known stem cell and regeneration model. Little bits of hydra can...

...fluorescence images of C2C12 cells stably expressing pTRE-Tight-MitoTimer and rtTA. The cells were pulsed with 2µg... Robinson et al., Dev Cell 2010 Feb 16;18(2):324-31. Cheeseman et al., J Cell Sci 2013 May 1;126(Pt ...neighboring cells in imaging applications and the mapping of neuronal projections to their associated cell bodies...been used by several groups to monitor protein and cell ageing, as the spectrum shift occurs during Timer...(pTRE-Tight-MitoTimer) to show its usefulness in cell culture to report changes in mitochondrial turnover...rapamycin-binding domains, such as FKBP and FRB. The cell does not appear to mind extraneous proteins bound...antibodies against common tumor markers to enhance cancer cell capture. Fierer et al., PNAS 2014 Apr 1;111(13...

... into a mouse embryonic stem cell (ESC) line, enrich and select for cells that had successfully incorporated...develop into chimeric mice (with a fraction of the cells in the adult mice derived from the engineered ESCs... it has been repurposed for genome editing in eukaryotes, with the most widely used CRISPR genome editing...target site. This is when it gets exciting – the cell sends out an “SOS” signal and cellular repair mechanisms...Humanization (25-kbp) Created Using Embryonic Stem Cell/Blastocyst and CRISPR/Zygote Injection Approaches...Alleles by CRISPR/Cas-Mediated Genome Engineering. Cell 154:1370–1379 . https://doi.org/10.1016/j.cell.2013.08.022...Genes by CRISPR/Cas-Mediated Genome Engineering. Cell 153:910–918 . https://doi.org/10.1016/j.cell.2013.04.025...

... specific cell-type promoter. Once injected into the brain, the viruses infect all the cells with an inactive...proteins control the flow of electric charges across cell membranes and maintain membrane potential in response...once a certain number of positive ions crosses the cell membrane, a threshold is reached and the neuron ...selective expression of opsin genes in targeted cells makes it possible to control neuronal activity with... This could be overcome by fusing opsin genes to cell-type specific promoters; however, those usually ...drive weak expression of downstream genes. Strong cell-specific promoters, on the other side, are too long...achieve strong opsin expression in specific neuronal cell types then? This is where FLEx enters the scene....

...can be used in bacterial and cell-free expression systems, mammalian cells, yeast, flies, and even plants... coli and/or cell-free systems. Protein expression in yeast MoClo is also for eukaryotes! The technology...transport studies in HEK cells, recombinant protein purification in bacterial cells, and a two-hybrid protein...for synthetic biology applications in bacteria or cell-free systems. The approach is particularly useful...of expression and integration needed in mammalian cell types, and comes with a large library of common ...protein interaction study in yeast cells. Need more MoClo? Check out Addgene's MoClo Guide! Customizing...Construction of Biological Circuits in Mammalian Cells.” ACS Synthetic Biology, vol. 8, no. 11, American...