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We narrowed to 587 results for: des.1

Showing: 341 - 360 of 587 results

  1. How to Prepare for an Industry Interview

    Type
    Blog Post
    Published
    July 9, 2020, 1:15 p.m.
    ...company culture.  It’s also a good idea to prepare 1-2 unique questions for each interviewer by looking...to take notes after each interview.   Tailor your 1-hour presentation to your audience Start by asking...method seems simple, I found it hard to remember to describe all four parts of a STAR answer once the interview... because sometimes companies have relaxed dress codes for interviews. You can also ask HR for clarification...

  2. With an Eye Towards the Future, We Look Back at the March for Science

    Type
    Blog Post
    Published
    Oct. 24, 2017, 1:54 p.m.
    ...impartial. The best science happens when scientists have 1) the courage to make mistakes and 2) the integrity...policies that “muzzle” government scientists to the de-funding of crucial environmental research programs...of what I saw are that we, as a society, need to: 1) use more citations for out data so our sources are...and minority communities, where these issues hit hardest. According to the Guttmacher Institute, most women...was supremely proud of Nashville that morning. Despite the rain, about 4,000 supporters of science showed... an agenda that halts current data collection, destroys existing data, and guts future funding.I marched...science belongs to the taxpayers who fund it, and we deserve to know the truth about our world. Jonathan Aguilar...

  3. New FLIS Plasmid (April Fools 2022)

    Type
    Blog Post
    Published
    April 1, 2022, 1:15 p.m.
    ...for locating and containing escaped flies. Nature 4:1-22. https://doi.org/4.01.2022/hafd... research, particularly genetics research, for decades. Its short life cycle, reasonably close genetic...

  4. Participate in the Pets of Addgene Scavenger Hunt

    Type
    Blog Post
    Published
    April 1, 2021, 1:15 p.m.
    ...scavenger hunt and the subsequent clue. (Begin with clue 1 below!) You will find five photos this way. At the...and have unleashed them all over our recently redesigned blog. 🐕 Your task is to find them, scavenger...

  5. Plasmids 101: The Wide World of Natural Plasmids

    Type
    Blog Post
    Published
    Oct. 8, 2024, 1:15 p.m.
    ...basis of many molecular biology tools! Figure 1: Common functions of natural plasmids. Created with....2024.01.039 Garcillán-Barcia, M. P., Redondo-Salvo, S., & de la Cruz, F. (2023). Plasmid classifications. Plasmid...difference is virulence plasmids! This category includes genes that help bacteria invade hosts, including...resistance to toxic substances like heavy metals or pesticides, enabling their hosts to survive where others...found on an E. coli fertility plasmid that also encodes a toxin, CcdB, and the resistance to that toxin...

  7. Antibodies 101: Fab Fragments

    Type
    Blog Post
    Published
    Sept. 5, 2024, 1:15 p.m.
    ...Fragment? Consider the classic IgG antibody (Figure 1): it is composed of four peptide chains (two identical...that actually bind antigens.      Figure 1: IgG antibody structure with important features labeled...talking about here? Many of the Fab fragments described above can be used for similar applications and...

  8. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    Published
    July 20, 2021, 1:15 p.m.
    ...interrogated by the optical system (Figure 1).   Figure 1: Cells expressing a particular surface ...populations of cells in a complex tissue or sample (1). When combined with cell sorters, this technology...assessed for the desired parameter. A droplet containing a cell that is positive for a desired parameter is...their observations. However, while flow cytometry provides analysis at the cellular level, it cannot be used...degree of scatter is captured by detectors and provides useful information about the cell. Light that ... traveling is called forward scatter (FSC) and provides information about the relative size of the cell...initially traveling is called side scatter (SSC) and provides information about the cell’s complexity. A cell...

  9. Antibodies 101: Stripping and Reprobing Western Blots

    Type
    Blog Post
    Published
    Aug. 1, 2024, 1:15 p.m.
    ...Glycine-HCl 25–200 mM SDS 0.1%–1% (w/v) Tween 20 (optional) 1% (v/v) HCl Adjust to pH 2.0...2.0–2.2 For the mildest stripping solution, omit the Tween 20. Once your solution is made, you’ll...

  10. Plasmids 101: Degron Tags

    Type
    Blog Post
    Published
    March 14, 2024, 1:15 p.m.
    ...systems reviewed here. The only required components are 1) a SMASh-tagged protein and 2) asunaprevir (small ... tag size, which can also be handy!   Fig 1. dTag molecules induce dimerization of an FKBP12F36V...degradation of the tagged protein. Degrons are destabilizing domains which will be identified by various ...proteasome for degradation. Like several other tags described here, the dTAG uses a small molecule, a tag, and...protein for imaging. Given its popularity and widespread usage, a proteolysis-targeting chimera (PROTAC... The auxin-inducible degron (AID) system is the oldest system reviewed here. The AID system relies on ...Thankfully, this is a hot topic with many resources! In Bondeson et al, they review all the tags discussed here...

  11. Viral Vectors 101: Voltage Indicators

    Type
    Blog Post
    Published
    Jan. 30, 2024, 2:15 p.m.
    ...depths (1 mm), important for certain applications such as in vivo tissue imaging.   Figure 1: Ace-mScarlet...fluorescent output. The GEVI family of gadgets includes Ace, JEDI, and many more. They can be targeted...component as well as a small molecule which we will describe in more detail below. Types of Voltage Indicators...Drosophila to phosphatases from sea squirts. This design structurally separates the two components of the...membrane, a concern with several of the previously described systems. Several adaptations of this method have...voltage sensing component (i.e., rhodopsin naturally resides in the membrane), or both. Targeting these systems...

  12. Of Myc and Men

    Type
    Blog Post
    Published
    Jan. 19, 2023, 2:15 p.m.
    ...more applications.   Fig. 1 Making a Protein Tag (Abridged) (1) Locate a promising monoclonal antibody...append their proteins of interest with unrelated peptides that already had high quality antibodies available...existence of high quality antibodies for well defined peptides. Munro and Pelham’s first published peptide tagging... tumorigenesis.  Using two different synthetic peptides corresponding to linear sequences within the middle...that perfect. One of the known limitations was described by Schüchner, et al., who published a paper showing...works and allow users to better troubleshoot and design experiments. It turns out that even with the most...

  13. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

    Type
    Blog Post
    Published
    March 21, 2024, 1:15 p.m.
    ...principles of fluorescent dyes/ligands Figure 1: Example structures of fluorophores, fluorescent dyes... dopamine D2/D3 receptors. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-78827-9 Breen... Biophysica Acta - Biomembranes (Vol. 1838, Issue 1 PARTA, pp. 15–33). https://doi.org/10.1016/j.bbamem...select the optimal dye or fluorescent ligand when designing an experiment. You may find yourself defaulting...protein, enabling the labeling of protein substrates/peptides and antibodies. Example applications of this include..., which is an important consideration for assay design (Breen et al., 2016). When selecting dyes, it's...fluorescent donors and acceptors in their product descriptions, or technical manuals. Specific applications...

  14. A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells

    Type
    Blog Post
    Published
    May 7, 2020, 1:15 p.m.
    ...editors (ABE) mediate A•T-to-G•C base changes (Figure 1), but it can be challenging to make these base changes...dCas to the genomic DNA of interest  Figure 1. When ABEs are in action they bind DNA so that the...tools, they do have undesired off-target editing effects. ABEs have been described to introduce base changes...efficient. Informed by these mutations and previously described TadA mutations (Gaudelli et al., 2017), they modified...heterodimeric fusion of wild-type TadA and TadA7.10, they designed one set of ABE8’s similarly (ABE8.x-d). In order...

  15. When Fidelity Matters: A frank discussion about ligase fidelity

    Type
    Blog Post
    Published
    March 6, 2018, 1:49 p.m.
    ...phosphorylated DNA termini to 3 ́-OH DNA termini (1-4). In vitro, ligases (notably T4 DNA ligase) are ... enzymology of DNA repair enzymes.     References 1. Shuman, Stewart, and Christopher D. Lima. "The polynucleotide...thermostable DNA ligase-encoding gene." Gene 109.1 (1991): 1-11. PubMed PMID: 1756968. 7. Lauer, G., et al. "Cloning...end-joining, but will also efficiently ligate many undesirable structures, including substrates containing gaps...fidelity") better than T4 DNA Ligase (21, 25, 26). Despite this higher fidelity, Taq DNA Ligase can still ...possible NN pairs in the template. The probes were designed such that each possible pairing resulted in a ... high fidelity ligase, along with careful probe design and reaction condition optimization, will be critical...

  16. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    Published
    May 15, 2014, 3:33 p.m.
    ...fluorophores are constantly being engineered. Table 1 lists a few common fluorescent proteins and their ...definitions found in Table 2 may not apply. Table 1: The specific mutations comprising common fluorophores...biochemical properties. In 1995, Roger Y. Tsien described an S65T point mutation that increased the fluorescence... in the wildtype protein and facilitating its widespread use in research. Many other mutations have since...array of GFP-based fluorescent biosensors has been designed to detect a variety of intracellular conditions...

  17. Plasmids 101: Multicistronic Vectors

    Type
    Blog Post
    Published
    Sept. 9, 2014, 8:20 p.m.
    ... necessary for advancing the field. References: 1. Internal initiation of translation of eukaryotic ... of a 2A peptide derived from porcine teschovirus-1 in human cell lines, zebrafish and mice. Kim et al...adapted "self-cleaving" 2A peptides into their muliticistronic vectors. These peptides, first discovered in ...plasmids) are designed to have one or more of the genes replaced.  Additionally, 2A peptides could be PCR-cloned...PDF that you can save on your desktop. The Plasmids 101 eBook is designed to educate all levels of scientists...incorporated into plasmids for research purposes are described below. IRES Elements Translation in eukaryotes...the specific genes cloned into the vector.3  2A Peptides To overcome some of the disadvantages of the IRES...

  18. Supporting Reproducibility with a Connected ELN

    Type
    Blog Post
    Published
    Jan. 17, 2019, 1:38 p.m.
    ...true reproducibility. The following are critical: (1) connectivity to other data sources used in research...engagement with the Wisconsin research community were to: (1) prevent vendor lock in by making it easy to get data...reproducibility than others. Unfortunately, most ELNs are designed as closed ecosystems and act as data silos because...RSpace ELN supports reproducibility RSpace was designed in response to requirements that emerged from ...used in research, and data repositories. Below I describe how each of these kinds of connectivity facilitates... in institutional and lab servers specifically designed to hold large amounts of data. Although it may... use of other tools they use in research. This includes chat apps like Slack, Microsoft Teams, and Google...

  19. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ...be selected for these small ligands. References 1. Ma, Hanhui, et al. “Multicolor CRISPR labeling of...Biological Applications.” Sensors (Basel). 2012; 12(1): 612–631. PubMed PMID: 22368488. PubMed Central PMCID...Researchers have used oligonucleotides in fluorescent visualization techniques for decades, most notably for... exponential enrichment (SELEX), some 1010 oligonucleotides could be screened for their affinity to a ...aptamers as well, and over the course of the next two decades, these nucleotide-based ligand binders would prove...their broad range of targets, including proteins, peptides, amino acids, drugs, metal ions, and cells (even...counterparts, antibodies and enzymes, such as: Design and selection for targets can be done largely in...

  20. Hot Plasmids - November 2023

    Type
    Blog Post
    Published
    Nov. 14, 2023, 3:35 a.m.
    ...type-specific delivery by modular envelope design. Nature Communications, 14(1), 5141. https://doi.org/10.1038/s41467... depending on the specific edit.   Figure 1: Choosing the best PE6 variant for your application...unstructured templates and significantly reduced undesired edits (indels, etc.), while PE6c and PE6d were...Delivery to Intended REcipient Cells Through Envelope Design). This modular approach combines an interchangeable...LOV-Turbo plasmids here! Next, Qin and Cheah et al. described TransitID, where two proximity labeling enzymes...that had been trafficked from the “source” to “destination”. Images adapted from Lee and Cheah et al. 2023...Figure 4: Time-resolved protein ticker tape. A) Design of iPAK4 protein ticker tape recording. B) HEK ...
Showing: 341 - 360 of 587 results