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  1. Hot Plasmids - September 2019 - CRISPR, Auxin Inducible Degradation, MerMAID Channelrhodopsins, and Genome Looping

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    ...ubiquitin ligase, the Kanemaki lab was able to translate AID to yeast, as well as mammalian and human cell...PubMed PMID: 31026591. Expanding the targeting range of CRISPRCas9 by engineering SpCas9 Article contributed...are also thought to play a key role in the transcriptional regulation of many genes. A number of groups...thus far for these latter experiments, such as transcription factors tethered to dCas9, require long time...
  2. Quantifying DNA? Here are Five DNA Quantification Methods to Consider

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    Blog Post
    ...This method involves measuring the absorbance/transmission of light through a liquid to determine the concentration...spectrophotometer measures these absorbances using UV-transparent cuvettes. First you measure the absorbance of...PicoGreen or SYBRGreen, are specific for double strand DNA (as compared to spectrophotometric methods ...However, the measurements are made in the visible range and can be read with a standard ELISA reader if ...
  3. The Crispr Babies Saga Shows the Need for Action, Not More Delays

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    Blog Post
    ...possibility, safety, and efficacy of the mtDNA transfer options being investigated; A UK regulatory body...emerging IVF techniques designed to prevent the transmission of mitochondrial disease;” The Nuffield Council...upon a moratorium until another meeting, three branches – a private funder, government regulators, and...question we are left with is not “what is the translational pathway for CRISPR/Cas9 research” but whether...
  4. Using CRISPR/Cas9 to Edit Disease Out of the Genome

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    Blog Post
    ...editing system to correct the cystic fibrosis transmembrane conductor receptor (CFTR) by homologous recombination...Cas9 has been used to generate mutations in a wide range of organisms, but its potential to efficiently correct...Cas-based Gene Therapy in Human Genetic Diseases.” Theranostics. https://doi.org/10.7150/thno.43360 7. Yuxuan...
  5. GCE4All: Making Genetic Code Expansion Accessible

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    Blog Post
    ...factors can negatively impact both translation and fidelity of translation, leading to system-wide effects... incorporation of an unnatural amino acid in translation (Noren et al., 1989). In the late nineties, this...non-interacting with) the cells’ own natural translation machinery; these are often incorporated into ...
  6. Plasmids 101: Methylation and Restriction Enzymes

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    Blog Post
    ...DNA. The other component of these systems, methyltransferases, methylate DNA at particular sequences to...restriction modification systems containing methyltransferases that add methyl groups to specific DNA sequences...overlaps with the XbaI cut site (depicted as an orange line) because the restriction site is followed ...plasmids with no methylation (there are no methyltransferases in the PCR reaction). The template plasmid...
  7. REPLACR Mutagenesis: Replacing In Vitro Recombination Methods

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    Blog Post
    ... and the nonmethylated PCR products are then transformed into E. coli to undergo nick repair. This method...containing the desired mutations, to amplify both strands of a plasmid template. In addition to containing...template plasmid, these PCR products are directly transformed into bacteria expressing recombineering proteins...fine, especially using plasmids in the 10-12 kb range. REPLACR-mutagenesis also requires making your own...
  8. Luminescent Imaging with Nano-lanterns

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    Blog Post
    ...supplied with a luciferase substrate, the luciferase transfers energy to the FP, resulting in a fluorescent signal...luciferase has a low quantum yield, and when transiently expressed in cells, generates much less signal... principle of bioluminescence resonance energy transfer (BRET). Photons emitted by a Renilla luciferase... Nano-lantern color palette to include cyan and orange Nano-lanterns and showed that these three luminescent...
  9. Screening for Successful Genome Editing with Digital PCR

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    Blog Post
    ...edit. Since exploitation of NHEJ to generate translational reading frame-altering indels for “functional... an unedited site distal tothe predicted double strand break, and a NHEJ/ “drop-off” probe designed to...to bind directly at the predicted double strand break site (Figure 2A). The single molecule resolution...PubMed PMID: 26914317. 4. Mock, U. et al. mRNA transfection of a novel TAL effector nuclease (TALEN) facilitates...
  10. Communicating Your Science With Help From ComSciCon

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    Blog Post
    ...next interview or whether your receive the next grant you apply for. After all, the only value your work...high level to their team.  When you're writing a grant, this means convincing a committee that your research...collaborating with colleagues in other fields or writing grant proposals to be reviewed by interdisciplinary panels...communities gather at ComSciCon's local and specialized franchise workshops throughout the year.  Find workshops...
  11. The Many Reasons for Irreproducible Research- and a Vaccine to Eradicate It

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    Blog Post
    ... sampling and inference-making. Even perfect transparent and rigorous studies will give false signals ...for Open Science in order to reward increased transparency and reduced bias in scientific research. These...include policies for publishers and funders in the Transparency and Openness Promotion Guidelines; preregistration...Registered Reports; and recognizing increased transparency with badges. Before coming to the Center for...
  12. A Deep Dive into BioBuilder

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    Blog Post
    ...lab uses cellular extracts to perform transcription and translation in vitro, and the new BioBuilder module...cutting-edge research projects in synthetic biology and transforms them into modules that students and teachers ...teams’ biological engineering designs and ideas ranged from a biological breathalyzer to pesticide breakdown...
  13. 3 Challenges in Plant Synthetic Biology

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    Blog Post
    ...how they started their company here. The first transgenic plant was engineered over 30 years ago, but plant... still in its infancy. A long timeline from transformation to testing and a lack of well-characterized...s made even more difficult by the fact that transformation methods have also been patented. In order to.... We will also be working with open source, transformation technologies like those pioneered by Ewen Mullins...
  14. To Each HIS Own

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    Blog Post
    ...and several contaminating proteins (blue, green, orange) flows through the Ni2+-containing resin. The protein...polyhistidine containing contaminating protein (orange). A low imidazole wash buffer disrupts the weak...polyhistidine-metal ion interaction is not disrupted by denaturants (Hochuli, 1988). In some cases, proteins can ...tag and then refolded by gradual removal of the denaturant. Not all proteins will refold once denatured,...
  15. Summer SciComm: Preprints

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    Blog Post
    ...conference poster or talk, or submitting patent or grant applications; to informal settings like lab meetings..., and increase their impact. Open Access and Transparency Another major benefit of preprints is their ... of listing “Submitted” articles in their CV or grant applications. A number of organizations (such as...be prone to biases or errors, with a lack of transparency in most review processes. Preprints and their...
  16. Rosella: A Fluorescent pH-Biosensor for Studying Autophagy

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    Blog Post
    ...Autophagosomes are relatively easy to identify: double-membraned structures containing undigested cytoplasmic contents...stands for protein) associates with autophagosomal membranes, so tagging it with GFP allows for tracking the...emission spectra. Component Excitation Emission pH Range DsRed.T3 488, 543*, 568 nm 587 nm ~4.9 - ...mechanisms behind autophagy by tracking what’s being transported to the yeast vacuole (i.e. cytosol, mitochondria...
  17. Troubleshooting Your Plasmid Cloning Experiment

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    Blog Post
    ...the specific reaction you are running. Transformation Transform a few microliters of your ligation reaction...The PCR could fail to produce a product, the transformation may not result in any cells, or all the colonies...fragments If you don’t get any positive clone, try transforming the ligation mix in different bacterial strains...
  18. RNA Extraction Without A Kit

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    Blog Post
    ...expense, and less of being left with a bunch of random solutions when all the spin columns run out. In... inherently not as stable as DNA- it is single stranded and its ribose groups are susceptible to hydrolysis...effectively isolate intact RNA, a fast, strong protein denaturant would be required- something that broke down ...Chirgwin and colleagues showed that a strong protein denaturant, guanidinium thiocyanate, did just this (Chirgwin...
  19. Celebrating 15 Years of Scientific Sharing

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    Blog Post
    ...technical support Our customer and technical service brands continue to be impeccable. We score ~99.9% helpful...lauded by another set of stakeholders - the tech transfer community. In a recent law review article we received... have a UI/UX team. Last time I checked we were ranked as the 21,806th most popular website in the world...pages and excellent work on our external website appearance and functionality are happening and this strengthens...
  20. Making CRISPR Plasmids Using Fragmid

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    Blog Post
    ...Gate cloning, perform an exonuclease cleanup, transform, plate, and pick. In short, the Fragmid system...AAV pRDA_889 (ITRs from AAV2) Mammalian Transposon pRDA_757 (Piggybac; constitutive expression...   Drosophilia Plasmid pRDB_053 (for transgenic flies; gypsy insulator sequences; white + selectable... drosophila) Delivery type (lentivirus, AAV, transposon, Plasmid) Destination vector (dropdown options...
Showing: 601 - 620 of 988 results