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Showing: 461 - 480 of 873 results
  1. AAVs CREATed for Gene Delivery to the CNS and PNS

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    Blog Post
    ...capsids were packed with a GFP transgene and GFP intensity and transduction efficiency of neurons were measured...AAV.PHP.eB and AAV.PHP.S had 1.5- to 2-fold higher GFP intensity compared to the strains they were derived from...Additional Resources on the Addgene Blog Important considerations when using AAVs Learn more about using AAV ...
  2. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    Blog Post
    ...luck, and always keep going. Appendix DNAse Hypersensitive Sites and Intergenic CRISPRs Yours truly generated... In reality, cellular DNA is a complex three-dimensional globule of chromatin. Chromatin is a combination...bowtie2 -f -x HG19_GENOME --local -f -k 10 --very-sensitive-local -L 9 -N 1 -U GRNA_23MERS -S GRNA_HITS.sam...
  3. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

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    Blog Post
    ...Fluorescent Protein? GFP is a ~27 kDa protein consisting of 238 amino acids derived from the crystal jellyfish...point mutation that increased the fluorescence intensity and photostability of GFP. This also shifted its... blog, you should! He's got great articles and insight on the newest tools and techniques in fluorescent...
  4. Fluorescent Proteins 101: Aptamer Fluorophores

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    Blog Post
    ... can be to get a “bad batch”); Customizable sensitivity and detection - since they frequently undergo...fluorescence for readout may render this approach less sensitive in most applications. Learn About Fluorescent ... sensor could save precious minutes in a time sensitive detection assay. In 1999, Grate and Wilson paired...
  5. Plasmids 101: Gateway Cloning

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    Blog Post
    ...clone. You will also need to use a E. coli strain sensitive to CcdB (e.g. DH5α, TOP10, Mach1). The ccdB gene... the CcdB protein inhibits the growth of CcdB sensitive E. coli strains, most colonies should contain ...sequences, start codon, stop codons, reading frame considerations, etc). This video demonstrates how to use the...
  6. 5 Reasons to Use Reddit for Science Communication

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    Blog Post
    ...place and give you some reasons why you should consider using Reddit to share your science. While Reddit...permanent reference by the Winnower. The only small downside to the AMA from my end as an organizer/promoter... general advice on how to meet people, how to transition out of academia, and other science career topics...
  7. New Tools Enable CRISPRa for Neuroscience Applications

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    Blog Post
    ...exception) necessitates such molecular gymnastics for sensitive applications such as CRISPR screening. The plasmids...are often many more genetic strategies) and then consider whether traditional cDNA overexpression is suited...eBook Resources on Addgene.org Check out our comprehensive CRISPR guide Find CRISPR plasmids and resources...
  8. Designing Your Chalk Talk for the Academic Job Interview

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    Blog Post
    ...?" is an open-ended list of proteins. Instead, consider "how do proteins X and Y regulate the Z pathway...that is easily visible from the back of the room. Consider going beyond the whiteboard. You may wish to create...blood sugar. Find an energy bar that you like and consider eating one before your chalk talk. Bring your ...
  9. CRISPR-mediated Plant Base Editors

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    Blog Post
    ...of the desired T-A base pair. Figure 1: Transition mutation (C>T, G>A, A>G, and T>C) installation...also constructed smaller vectors suitable for transient assays using protoplast transformation. Cytosine...72 hours post-transformation/transfection in a transient assay. For stable transformation, regenerated ...
  10. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

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    Blog Post
    ... bins together at a mixer. We call this Quorum Sensing, after the phenomenon in bacteria that occurs when...gene expression in response to changes in cell density. At the mixer, they meet other Mentors and Singletons...briannadoesbio) June 22, 2019 Favorable conditions - Expansion of networks The last stage is Exponential Growth...
  11. Antibodies 101: Immunoprecipitation

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    Blog Post
    ...When choosing beads, there are several factors to consider. Agarose beads are sponge-like and vary in shape...express the protein of interest, such as a sample transiently transfected or stably infected with the protein...appealing, but the disadvantages must be carefully considered before using. For example, the tag may affect...
  12. Viral Production at Addgene

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    Blog Post
    ...staining and the molecular weight and relative intensity of the viral capsid proteins are analyzed. The...preparation shows that the vast majority of the vectors consist of full particles (white arrowhead) relative to...targeting integrated copies of the lentiviral Rev responsive element (RRE) gene and the cellular ribonuclease...
  13. Viral Vectors 101: Pseudotyping

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    Blog Post
    ... the virus and is less affected.  Altering sensitivity to serum. Different pseudotyped viruses are differentially... protein that binds phosphatidylserine and low-density lipoprotein receptors (LDLRs) on a cell surface...CD, Friedman T, McClure MO, Weiss RA (1997) Sensitization of rhabdo-, lenti-, and spumaviruses to human...
  14. CRISPR-based Genome Editing Systems For Editing in E. coli

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    Blog Post
    ...pTargetF system consists of one plasmid that expresses the S. pyogenes Cas9, a temperature-sensitive replicon...changed the replicon of pCas into a non-temperature-sensitive replicon, and 3) added the sacB gene for counterselection...
  15. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

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    Blog Post
    ...important to note that in Morgens et al., guides were considered toxic if they were depleted from the screen. ...sites that lack open chromatin marks, DNase hypersensitivity, or are in an enhancer, transcription factor... significant difference in depletion of ricin sensitizer genes identified with short and long guides. ...
  16. March for Science

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    Blog Post
    ...States government? Politics and science are intrinsically linked: governments exist in reality and science...include science in decision making, it will be considered a success. Below are resources for the march ... “politicized science” ABC News: White House considering gutting 38 EPA programs: draft budget  Science...
  17. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ...to be examined on a case-by-case basis. GFP is sensitive to acid The chromophore of GFP can exist in a ...determined in vitro by measuring the fluorescence intensity of purified protein at different acid concentrations... its fluorescence and therefore GFP cannot be downsized by deleting residues. Only about 10 amino acids...
  18. Adeno-associated Viruses (AAVs) for Genome Editing

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    Blog Post
    ...vectors are then packaged into AAV virions via transient transfection of 293T cells with helpers, and used...disadvantages to the AAV-based approach that must be considered when deciding whether to use AAV or CRISPR for... is a Professor of Oncology at the Lombardi Comprehensive Cancer Center, Georgetown School of Medicine...
Showing: 461 - 480 of 873 results