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  1. Plasmids 101: Expressing shRNAs for RNA Interference

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    Blog Post
    ... References Bartel, D. P. (2004). MicroRNAs. Cell, 116(2), 281–297. https://doi.org/10.1016/s0092-8674...downstream genomic sequences (Figure 2B).   Figure 2: A comparison of an shRNA plasmid sequence and an ...module_attribute "schema_version" is_json="true" %}{% raw %}2{% endraw %}{% end_module_attribute %}{% module_attribute...miRNA-guided gene silencing. Nucleic Acids Research, 50(2), 617–634. https://doi.org/10.1093/nar/gkab1256 Lee...silencing complex. Molecular Cell, 82(1), 30–43. https://doi.org/10.1016/j.molcel.2021.11.026 Kilikevicius...miRNA and piRNA can be found endogenously in many cell types, while shRNA and siRNA are synthetic constructs...methods. shRNA processing Following delivery into cells using viral vectors or plasmids, shRNAs hijack the...
  2. Antibodies 101: Stripping and Reprobing Western Blots

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    Blog Post
    ...incubation at 37 °C. Wash the membrane for 5–10 minutes 2–3x in fresh wash buffer such as PBS or TBST. Stringent...Purpose Tris HCl 62.5 mM Buffer SDS 2% (w/v) Detergent Β-mercaptoethanol (βME) 100...minutes at 50 °C. Wash the membrane for 5–10 minutes 2–6x in fresh wash buffer such as PBS or TBST. Note ...better than a nitrocellulose membrane. If you have already run your blot using nitrocellulose, you may decide...protein of interest in a complicated solution like cell lysate. But they can be a lot of work — and what...instructions for the membrane you are using. Dry nitrocellulose membranes are brittle, so proceed with caution...
  3. Addgene Depositors Get More Citations

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    Blog Post
    ... 1 2010 3 Nature  3.3% 10.5%   3.2  9.6 2 2010 167  Nature 3.3%  10.5%  3.2  534.1 3...Microbiology  1.6% 1.2%  0.75   125.3 In figure 2, you can see the full impact from using these weighted...plasmids deposited at Addgene still accrue on average 2 to 3 times as many citations as other papers in the... most relevant to plasmids: Genetics & Heredity, Cell Biology, Biotechnology & Applied Microbiology, Biochemistry...
  4. Using Phosphoserine to Study Protein Phosphorylation

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    Blog Post
    ...phosphorylation." Nature cell biology4.5 (2002): E127-E130. PubMed PMID: 11988757. 2. Hornbeck, Peter V., ...phosphorylation events in the proteomes of higher mammals (2). How can we begin to understand the importance of... the open reading frame (ORF) of interest (Figure 2). 1. The phosphoserine OTS The backbone of the phosphoserine...optimized Sep-OTSλ and can recommend its use (6).  2. C321, a specialized bacterial host strain for pSer-incorporation...commonly cited that approximately one-third of cellular proteins are modified through phosphorylation ...translation of many stop codons and detrimental effects on cell growth. The C321.ΔA strain was genomically recoded...is particularly interested in the intersection of cell signaling, metabolism, and the mighty mitochondrion...
  5. Fluorescent Proteins 101: Introduction to FRET

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    Blog Post
    ... living plant cells." (2013). PubMed PMID: 24194740. PubMed Central PMCID: PMC3810607. 2. Bajar, Bryce... fluorophore excitation by absorption of a photon 2. Energy transfer from the excited donor directly to...PubMed PMID: 10500161. PubMed Central PMCID: PMC18018. 2. Miyawaki, Atsushi, et al. "Fluorescent indicators...fluorescent proteins available. Fortunately, several excellent reviews have collated data from various papers... 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...
  6. Educational Planarian Tools for Teaching Developmental Biology Techniques

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    Blog Post
    ... the gene Prohormone convertase 2 (pc2) labels the central nervous system. Evaluating Gene function by... characterized in an unrelated worm (C. elegans) [2]. Delivering dsRNA matching a specific mRNA sequence...223). Link: http://abt.ucpress.edu/content/79/3/208 2. Fire, S. Xu, M.K. Montgomery, S.A. Kostas, S.E. Driver...stain the cells that contain this mRNA-riboprobe-antibody complex and, as a result, these cells turn blue...specific cell types or entire organs in planarians. For example, the gene Piwi labels neoblast cells and the...techniques to alter gene expression or to label specific cells, but there are too few resources to teach students... in tissue. This is useful for labeling specific cell types and for viewing how gene expression changes...
  7. Technique: Probe Phage Genomes for Host Binding Proteins

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    Blog Post
    ...lately (1, 2), depends on knowledge of the structure(s) a given phage will recognize on a host cell. To make...per plate) across 20 fresh selective plates. Step 2: Express random phage DNA fragments in E. coli Now...microbiology 23.4 (2015): 185-191. PubMed PMID: 25708933. 2. Cooper, Callum J., Mohammadali Khan Mirzaei, and ... biology 34 (2015): 69-77. PubMed PMID: 26275959. 2. Weigele, Peter, and Elisabeth A. Raleigh. "Biosynthesis... cloned into E. coli cells, isolated colonies will be lifted onto nitrocellulose membranes and exposed... proteins directly onto the nitrocellulose for subsequent probing for cell-binding activity.  First, cut...with live host cells Now you can proceed with incubating this membrane with your cells of interest and...
  8. Viral Vectors 101: Inverted Terminal Repeats

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    Blog Post
    ...ITR, which can either be “flip” or “flop” (Figure 2). Additionally, the ITR contains a 4-nucleotide Rep...site for Rep proteins (Savvy et al. 2013). Figure 2: AAV2 wild type ITR in flip and flop orientation. ...Packaging, and Potency of AAV Vectors. Microorganisms, 12(2), 310. https://doi.org/10.3390/microorganisms1202031038399714...allow scientists to express a gene of interest in a cell or animal model. AAV plasmids contain several important...Integrity on rAAV8 Production Using the Baculovirus/Sf9 Cells System. Hum Gene Ther Methods, 28(5), 277–289. https...
  9. Technologies Enabled by NanoLuc® Luciferase

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    Blog Post
    ...the system outlined in Schmid-Burgk, J.L., et al (2). In this post, I’ll cover two great applications ...molecularly evolved from mNeptune2 through 33 mutations and 2 deletions. CyOFP1 has a higher quantum yield, brightness...luciferin 24 hours later demonstrated a more than 2-fold brighter signal from Antares as compared to Fluc...PMID: 22894855. PubMed Central PMCID: PMC3501149. 2. Schmid, J.L., et al. (2016) CRISPaint allows modular...successfully infected/expressing cells by flow cytometry. The isolated cells were injected into mice and imaged...including monitoring multiple cellular events such as the dynamics of subcellular structures and gene expression...other cellular proteins. BRET-based biosensors utilizing NanoLuc® luciferase Many intracellular sensors...
  10. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

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    Blog Post
    ...red in the spreadsheet (Figure 2) and are described in Table 1. Some cells have drop-down options for you...our deposit spreadsheet to complete Step 1. Steps 2 and 3 are usually very easy — our tech transfer team...Filling out and sending the deposit spreadsheet Figure 2: Example of the deposit spreadsheet showing the first... question about what should go into a cell, hover over the cell and instructions will pop up. When you... into the appropriate full and partial sequence cells. *Note: If you believe you need to deposit a collection...
Showing: 221 - 230 of 595 results