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Showing: 221 - 240 of 341 results
  1. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

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    Blog Post
    ...Genome-scale CRISPR-Cas9 knockout and transcriptional activation screening. Nat Protoc 12:828–863 . https://doi.org...holes are then filled with other samples in our queue such as viral samples for Viral Genome Sequencing (...preps and pooled libraries.  Viral samples are filled into the same process as our normal Complete Plasmid...unique barcodes per sample so we can assign sequencing reads to the correct sample. The PCR is then performed... process that yields high-quality isolated DNA samples of sufficient quantity for sequencing. This process...yielding anywhere from two to six plates of 96 samples per week. This is where our new process will begin...of a pipeline that takes the raw data from each sample in our pool and individually assembles the reads...
  2. To Each HIS Own

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    Blog Post
    ...variety of ways. How do scientists focus on the activity or function of a single protein? Oftentimes, they...metal ions are immobilized on a bead or resin and a sample containing the protein of interest flowed through...interest and the metal ions.      Fig. 1: A sample containing a polyhistidine tagged protein of interest...tags are also recommended if you need a very pure sample. Because binding strength is proportional to the...
  3. Adapting Toehold Switches to Detect Zika Virus

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    Blog Post
    ...time, we have also demonstrated our technology on active virus, as well as shown that we can detect the ...high and above what would be expected in patient samples (e.g.: blood, urine). Adapting toehold switches...pathogen’s genome as unique barcodes to identify samples containing the virus. Of the 48 sensors, targeting... diagnostic results.  Our approach now detects samples at clinically relevant concentrations (1-3 fM; ... look at viral load in patient blood and urine samples; we showed that we can detect the virus directly...Interview with Previous Collin's Lab Member and Sample 6 Cofounder Michael Koeris Learn How Minigenomes...
  4. Visualizing Genomic Loci with CRISPR-Sirius

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    Blog Post
    ...variety of applications: base editing, CRISPR activation and inhibition, among others. Over the past few...combination of MS2, PP7, or boxB sequences in the same sgRNA will generate additional colors. Image from...
  5. A Novice's Perspective on Neuroscience - SfN2017

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    Blog Post
    ...brain, mapping neuronal networks, and selectively activating signaling pathways. Many scientists came to the...While walking around the exhibition area, I got a sampling of the broad variety of tools in neuroscience ...
  6. Communicating Your Science With Help From ComSciCon

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    Blog Post
    ...workshop took place in Boston - you can revisit the activities of our attendees there online with #comscicon18...suggests a change to a slide, think about whether the same principle applies to other slides in your deck.  ...
  7. Illuminating Epigenetics with A FRET Based Biosensor

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    Blog Post
    ...CpG islands makes  genes less transcriptionally active. The role of epigenetics in studying disease Epigenetic...both involve the same region of chromosome 15. They both result from the inactivation of genes on one ...corresponding gene products due to the same region, but not the same exact genes, being improperly silenced.... This is how most cells in the body contain the same DNA but have very different structure and function... genes from both copies of chromosome 15 are inactivated, but different phenotypes result depending upon...suppressor genes can repress their transcription and inactivate them. Global hypomethylation, on the other hand...are known to be involved in repression and X-inactivation. The K9 reporter uses the HP1 chromodomain to...
  8. Delivery Methods for Generating iPSCs

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    Blog Post
    ...plasmid will get diluted faster when cells are actively dividing. The typical drawbacks of using transfection...of time than traditional plasmids due to lower activation of DNA-silencing mechanisms. While minicircles...integration Insertional mutagenesis, transgene reactivation, residual expression Lentivirus Integrating...silencing of transgenes is a concern as well, and reactivation of Myc or other oncogenes after differentiation.... This can complicate comparisons made between samples, i.e. transgene expression and hence the extent...Cre-lox lentiviral vectors: This approach is the same as using a standard lentiviral vector, but transient...
  9. Brain Initiative Collection

    Type
    Collection
    ...H134R mutation) fused to eYFP for optogenetic activation Viviana Gradinaru 128485-AAV9 pAAV-CAG-iSeroSnFR-Nlgn...eYFP Viviana Gradinaru 119741-AAV5 AAV SYN flex PSAM4 GlyR IRES EGFP Chemogenetics Cre-dependent expression...plasmid Scott Sternson 119741-AAV9 AAV SYN flex PSAM4 GlyR IRES EGFP Chemogenetics Cre-dependent expression...expression plasmid Scott Sternson 119742-AAV5 AAV SYN PSAM4 GlyR IRES EGFP Chemogenetics expression plasmid ...plasmid Scott Sternson 119744-AAV5 AAV CAMKII PSAM4 GlyR IRES EGFP Chemogenetics expression plasmid Scott Sternson... about our antibodies ID Recombinant Antibody Reactivity Recommended Applications PI Additional Resources...
  10. Viral Vectors 101: Viruses as Biological Tools

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    Blog Post
    ...Central PMCID: PMC413431. 2. Bukrinsky MI, et al. “Active nuclear import of human immunodeficiency virus ...designed to make you sick…well, you feel it. But the same features that make these familiar viruses such a...a DNA/RNA cargo into their targets makes them attractive and tractable tools for genome engineering. Scientists... into an organism. This feature makes them an attractive tool for human subject delivery, as immunogenicity...
  11. Sharing is Caring: But How to Distribute Open Hardware?

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    Blog Post
    ...now routine, open-source software projects that actively engage with the community are particularly successful...very difficult to adapt the device to one's own samples and limits the use of microscopy in open science...
  12. Viral Vectors 101: Gamma-Retroviral Packaging Systems

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    Blog Post
    ...the provirus). Contains sequences necessary for activation of viral genomic RNA transcription. R; Repeat...While both lentiviruses and γ-retroviruses use the same gene products for packaging (Gag, Pol, and Env),...produce additional virus. Are γ-retroviruses self-inactivating (SIN)? They can be. Plasmids that encode SIN...
  13. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

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    Blog Post
    ...HDR may inadvertently re-create a match for the active guide. With these constraints in mind, we implemented...scientists design and analyze batches of CRISPR samples. We invite you to jump in and try it out, or take... databases, including primer3, biopython, bwa, samtools, bowtie, UCSC genome browser, Ensembl, and others...currently Crispor and Crispresso, that adhere to the same principles listed here. It employs biological best...productivity in the Biohub. We hope it will do the same for you. Send us your questions or comments to gdingle...
  14. Story of a SynBio Startup: RevBio's Epiphany (or Lack Thereof)

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    Blog Post
    ...commission in the United States Air Force. She left active duty to pursue a degree in a synthetic biology ... synthetic biology lab Keira and I worked in the same lab for four years. It was a cutting-edge synthetic... on the detector plants, we expected to see that same anger. Instead, social media comments were more ...
  15. Antibodies 101: Conjugation

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    Blog Post
    ...each of these enzymes allow you to detect enzyme activity (and therefore your antibody) either through a... antibody will have been verified to perform the same as its unconjugated version, but if you find yourself...
  16. Mouse Modeling, Part 1: Genetically Engineered Mice

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    Blog Post
    ... include tetracycline or doxycycline mediated activation of Cre to either induce or repress Cre expression...repair is a random process, zygotes edited using the same nuclease may not result in genetically identical...
  17. Fluorescent Tagging of Endogenous Genes with SapTrap

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    Blog Post
    ...Beyond simply monitoring protein localization and activity, CRISPR tagging systems can be modified to assay... 2-3). Since donor plasmids of the same type will produce the same unique SapI 5’ overhang, different ...about Fluorescent Protein Timers Check out Photoactivatable Fluorescent Proteins Use Rosella to Monitor...
  18. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

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    Blog Post
    ... Doench CRISPR-Cas9: Tips for Optimizing sgRNA Activity by John Doench All CRISPR Posts  ...Beatty et al., 2012). These features make AdV an attractive candidate for in vivo delivery of advanced genome...achieved by isogenic AdVs encoding TALENs targeting the same chromosomal region. The CRISPR/Cas9-derived RNA-...in a second paper published in Nature Methods the same year that delivering RNA-guided nucleases or TALENs...
  19. Your Lentiviral Plasmid FAQs Answered

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    Blog Post
    ...proteins that target specific tissues are areas of active study (for a review click here). Alternative envelopes...often: Q1: Are retroviruses and lentiviruses the same thing? Can I package lentivirus with retroviral ...both lentiviruses and gamma-retroviruses use the same genes for packaging (that's gag, pol, and env), ...initial infection. SIN is shorthand for self-inactivating, which is achieved by deleting a large portion...
Showing: 221 - 240 of 341 results