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We narrowed to 587 results for: cel.2

Showing: 461 - 480 of 587 results

  1. Visualizing Protein Turnover In Situ

    Type
    Blog Post
    ...PMID: 20543841. PubMed Central PMCID: PMC2920597. 2. Nathans, Daniel. "Puromycin inhibition of protein...proteins in cells. Homeostatic regulation of protein abundance is essential for normal cell function, and...one particular protein in neurons or in any other cell type. However, we cannot distinguish new from old...facilitate the visualization of specific proteins in cells. Tagged protein can easily be overexpressed from...techniques to follow translation in living single cells. However, before CRISPR-Cas9 these techniques were...interests, suspected to interact, are added to a cellular sample. Both antibodies have a short antibody ... turnover of specific endogenous proteins in any cell type. Exciting! Many thanks to our guest blogger...

  2. Viral Vectors 101: Viral Vector Elements

    Type
    Blog Post
    ...available in the adenovirus section below!   Fig. 2 - Viral vector components of AAV Adenovirus Adenoviruses...genetic cargo, typically an expression construct, to cells/organisms. This is often cDNA, shRNA, or something...perform very similar functions to infiltrate the host cell and deposit viral cargo. Gene expression While AAV...what will be delivered and expressed in the host cell from the transfer plasmid. Viral packaging and entry...altered tropism of AAV to target different tissue or cell types. AAV also requires some back up from adenovirus...promoter that you wish to deliver to your target cells. In adenovirus, the ITRs serve as a type of origin...deficient. This is typically supplied by the production cell line (HEK-293) during production. Fun fact: There...

  3. Plasmids 101: Cre-lox

    Type
    Blog Post
    .... PubMed PMID: 6276558. 2. Site-specific DNA recombination in mammalian cells by the Cre recombinase of...transgenic animals, embryonic stem cells, and/or tissue-specific cell types: Cre-lox recombination. What...downstream of promoters that are active only in certain cell or tissue types, during certain stages of development... recombinase can be expressed only in specified cells or at specified times. Combining this with some ...has been used to successfully introduce Cre into cells of interest. What if I need two separate recombination...

  4. Protocol - pLKO.1 – TRC Cloning Vector

    Type
    Protocol
    ...a. Plate target cells and incubate at 37°C, 5% CO 2 overnight. Day 2: b. Target cells should be approximately...plates and grow at 37°C, 5% CO 2 overnight. Day 2: b. The target cells should be approximately 80-90% ...materials D.2 Screening for inserts E. Producing Lentiviral Particles E.1 Recommended materials E.2 Protocol...Published articles H.2 Web resources I. Appendix I.1 Sequence of pLKO.1 TRC-Cloning Vector I.2 Recipes I.3 Warranty...VWR: #7177-48-2. Use at 100 μg/mL. Carbenicillin VWR: #80030-956. Use at 100 μg/mL. C.2 Annealing Oligos...oligo 5 μL Reverse oligo 5 μL 10x NEB buffer 2 35 μL ddH 2 O Incubate for 4 minutes at 95°C in a PCR machine...buffer 1 1 μL AgeI add ddH 2 O to bring to 50 μL final volume Incubate at 37°C for 2 hours. Purify with Qiaquick...

  5. Back to Bacteria: CRISPR gRNA Multiplexing Using tRNAs

    Type
    Blog Post
    ...3570-5. doi: 10.1073/pnas.1420294112. Epub 2015 Mar 2. PubMed. Find the plasmids from this publication ...toolkit in human cells. Nissim L, Perli SD, Fridkin A, Perez-Pinera P, Lu TK. Mol Cell. 2014 May 22;54(...advantageous to instead use a preexisting, conserved cellular machinery to process gRNAs. Hijacking tRNA processing...tRNAs are among the most abundant molecules in a cell, this system is clearly also robust enough to ensure...54(4):698-710. doi: 10.1016/j.molcel.2014.04.022. Epub 2014 May 15. PubMed.  Find the plasmids from this...

  6. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    ...pluripotent stem cells differing exclusively at two early onset Parkinson Point mutations. Cell, 146(2), 318–331...extraction solution, runs the protocol, then uses around 2–4 µl in each 50 µl PCR reaction. The gDNA extracted...find both single-allelic and bi-allelic cells. Single-allelic cells usually make up the majority in culture...allows you to sort for GFP-positive cells and to enrich for those cells that were positively transfected....Double-Strand Break Repair in Mammalian Cells. Molecular and Cellular Biology, 18(1), 93–101. https://doi....genome editing specificity. Cell, 154(6), 1380–1389. https://doi.org/10.1016/j.cell.2013.08.021  Ran, F. ...CAS-Mediated Genome Engineering. Cell, 153(4), 910–918. https://doi.org/10.1016/j.cell.2013.04.025  Yang, H....

  7. Why and how to start studying chromatin (with Addgene's help)

    Type
    Blog Post
    ...JS, Legube G, Miller KM Genes Dev. 2015 Jan 15;29(2):197-211. DNA Cross-Bridging Shapes a Single Nucleus... R, Schmalhorst PS, Jude JG, Zuber J, Gerlich DW Cell. 2017 Aug 24;170(5):956-972.e23 Screen identifies... R, Schmalhorst PS, Jude JG, Zuber J, Gerlich DW Cell. 2017 Aug 24;170(5):956-972.e23 Rapid and phosphoinositol-dependent... Rando OJ, Xue Y, Swiderek K, Kuo A, Crabtree GR Cell. 1998 Nov 25. 95(5):625-36. An architectural role..., Ensminger AW, Fox AH, Chess A, Lawrence JB Mol Cell. 2009 Mar 27;33(6):717-26. Reporter-nanobody fusions...

  8. 27 Hot Plasmids from 2016

    Type
    Blog Post
    ...backbone, which expresses the gRNA from a Drosophila U6:2 promoter and Cas9 from the actin 5C promoter. Addgene...backbones for lentivirus LV 1-5 and retrovirus RV 2-5 were constructed. The authors then used GMAP assembly...engineering (MAGE) (1). MAGE uses recombineering (2) to simultaneously incorporate multiple single-strand...number of tandemly expressed gRNAs respectively) and 2) the size of the deletion. Smaller deletions generally... HEK293FT cells expressing a single gRNA targeting a single gene. The gRNA expressing cells were then ...plasmid to generate a population of mutant cells. The mutant cells were treated with WNV at a dose and duration...regulate the ability of WNV to induce cell death in infected cells (SEL1L, UBE2J1, EMC3, EMC2, DERL2, UBE2G2...

  9. Plasmids 101: Sequence and Ligation Independent Cloning (SLIC)

    Type
    Blog Post
    ..., but at a lower efficiency (~20%). Figure 2: Schematic of multicomponent assembly with SLIC. Multiple...bacteria, so it can be transformed as-is into cells. The cells then get to work fixing up the “damage” and...nicked plasmid together long enough to get it into cells and let them do the repair work. The key is T4 DNA...

  10. Sharing is Caring: But How to Distribute Open Hardware?

    Type
    Blog Post
    ...-priced commercial devices.     Fig. 2: Workflow for open software (left) vs. open hardware (right...quantitatively evaluating antibody staining, or counting cells are now routine, open-source software projects that...portable device for studying plankton using flow cells, has become an established alternative to high-priced... and blueprints has the potential not only to accelerate scientific progress, but also to enable science...

  11. Summer SciComm: Preprints

    Type
    Blog Post
    ... scientific communication ecosystem Figure 2: The scientific ecosystem, enriched by open access...from peer-reviewed publishing in a journal.  Accelerating scientific communication Preprints have been...Figure 1: Stand aside, CERN — it's a new age of accelerating science! Photo courtesy of Henry Mühlpfordt,...Lacy was also employed by the American Society for Cell Biology in a position working with preprints in ...

  12. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    ...two options to begin your plasmid deposit. Figure 2: Choose to submit plasmid(s) online or by using a ...format. Figure 6: Add sequence, maps, and files. Step 2: Gene and Insert *Note: This page will not appear ...for a lentiviral vector to be used in mammalian cells, check Lentiviral and Mammalian Expression). This...

  13. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    ...endothelial cell-pericyte, neuron-astrocyte, and cancer-stromal cell pairs.   Figure 2: Schematic...Winslow’s lab to label cells after cell-cell interactions. Using G-baToN, “sender” cells express GFP on the... and “receiver” cells express an anti-GFP nanobody on the cell surface. When the cells interact, GFP is...the receiver cell, and the receiver cell turns green. This system can be used in many cell types including...engineering with single-pot assembly Tracking cell-cell interactions New auxin inducible degron system....brgcm3sw     New system developed to track cell-cell interactions By Jennifer Tsang GFP-based Touching...of the interaction between the sender cell and the receiver cell. Image from Tang et al., 2020.   ...

  14. Mouse Modeling, Part 1: Genetically Engineered Mice

    Type
    Blog Post
    ...covered in more detail in part 2 of this blog series) controls the cell types in which the conditional...modified zygotes or embryonic stem cells. Modified embryonic stem cells are injected into a blastocyst which...engineered cells. Similar to transgenic mice, knockout mice are engineered during the embryonic stem cell stage...not all cells in the blastocyst were successfully edited by the injection of embryonic stem cells. Also,... interest into a zygote, or into embryonic stem cells that are then injected into a blastocyst. There ...of interest into a zygote or into embryonic stem cells. Non-homologous recombination incorporates this ...targeting vector is electroporated into embryonic stem cells and this will insert the gene at a specific site...

  15. Tips for Titering Your Lentiviral Preps

    Type
    Blog Post
    ...protocols 4.4 (2009): 495-505. PubMed PMID: 19300443. 2. Geraerts, Martine, et al. "Comparison of lentiviral...can actually infect cells. These assays typically involve infecting a target cell line with your virus...distinguish between a cell that has had one viral particle integrated into its genome and a cell that has had ...arrived; you’ve painstakingly cared for your packaging cell line, prepped your DNA, transfected and harvested...move ahead with your infection and make your stable cell line. While we’ve all experienced the pressure to...viral copies that have integrated into the target cell’s genome. Physical titer The two most common assays...functional titer uses FACS to count the number of target cells that are positive for vector encoded transgene expression...

  16. Summer SciComm Series: A PhD in Science Communication

    Type
    Blog Post
    ...perceived climate change risks. Nature Climate Change, 2(10), 732-735. doi:10.1038/nclimate1547 Kunda, Z. (...spend the afternoon lovingly tending to the stem cells I was using in an experiment, then spend the evening...

  17. 3 Challenges in Plant Synthetic Biology

    Type
    Blog Post
    ...and open a new conversation about GMOs.  Challenge #2: Technical obstacles to plant synthetic biology In...challenging to engineer a specific function in these multicellular organisms. However, the rewards are great if...

  18. Plasmids 101: The protein expression toolbox

    Type
    Blog Post
    ... the transcriptional level.     Fig. 2 Tetracycline on/off promoters and modes of action ...force to control protein expression in mammalian cells: easy to use biological tools are abundant! In this...tag prior to introduction of the construct into cells. However, if you would like tunable control of an...

  19. Announcing the Winners of the 2021 Michael Davidson and Roger Tsien Commemorative Conference Awards

    Type
    Blog Post
    ...processes that happen inside the cell,” says Pedre Pérez. Figure 2: Micrographs of the biosensor ...sensitive GFP2 (roGFP2)-based biosensors for live cells. His work focuses on the enzyme hydropersulfide-...biosensor expressed in the human cell line, Hep3B. From left to right: Mitotracker Red, GFP for the biosensor,...studies opioid use disorder. Her goal is to identify cell populations in the brain that contribute to the ...will explore the connectivity patterns of these cells and the functional contribution to a variety of ...administration and withdrawal to explore how these cells may encode the negative affect associated with drug...library of mutant sensors expressed in a mammalian cell line engineered to be electrically excitable. The...

  20. General Transfection

    Type
    Protocol
    ... solution can be stored at 4 °C for up to 2 months. After 2 months, discard the tube and thaw a new working... transfected using 1:1, 1:2, 1:3 and 1:6 µg of pRosetta :µg of PEI. The 1:2 and 1:3 ratios provided high...Plate 1x10 6 cells in a 75 cm 2 flask in a volume of 15 mL. Wednesday: Plate 1x10 6 cells in a T75 flask... transfect cells with a fluorescent plasmid using a variety of ratios. Check the cells 1–2 days after ...optimized for viral production) Day 1: Transfect Cells Day 2 (am): 18 h post transfection - Remove media, ...tissue culture plates. Incubate the cells at 37 °C, 5% CO 2 for ~20 h. Gently aspirate media, add 10 mL...Biological Safety Cabinet 0.5–10 µL single channel pipette 2–20 µL single channel pipette 20–200 µL single channel...
Showing: 461 - 480 of 587 results