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Showing: 241 - 250 of 928 results
  1. Google Forums Round Up: First Impressions of NgAgo

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    Blog Post
    ...reaction or can be purchased 5’-modified from a company. However, unlike an RNA guide, it cannot be produced...probably while it is being synthesized) can form a complex with an ssDNA guide. Therefore, researchers must...inject cells with in vitro preassembled Cas9/gRNA complexes or with guide RNA- and Cas9-expression plasmids...survey and asked researchers if they had tested and compared NgAgo head-to-head with CRISPR-Cas9. The survey...respondents (transfection method, amount of each component per transfection etc.). Take Pooran's NgAgo Survey...same method used by Gao et al, 2016 (1). View the Complete and Up-to-Date Results of Pooran's NgAgo Survey..., leaving a small amount of active NgAgo/ssDNA complex in the cell. As proposed in the original article...
  2. INTEGRATE: Bacterial Genome Engineering Using CRISPR-Transposons

    Type
    Blog Post
    ... a Type I-F CRISPR-Cas system. The four major components required for RNA-guided DNA integration are (... (Fig. 1A, top):  A CRISPR RNA (crRNA) comprising a 32 nt spacer sequence specifying the target site....sequences (R and L ends).  Figure 1: (A) Components involved in each type of CRISPR-Transposon system...multiple Cas proteins to form the Cascade targeting complex is a hallmark of Type I CRISPR-Cas systems, in ...nuclease activity. Instead, it forms a novel co-complex with the transposition protein TniQ for targeting... by the system. Guided by the crRNA, QCascade complexes survey the genome and bind target DNA sequences...pairing. Separately, TnsABC forms a transposase complex with the mini-transposon, excises it from the donor...
  3. Custom CRISPR Screens & the Green Listed Software

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    Blog Post
    ...library, as well as GC%, reverse compliment sequences, and more. Output_Compact: A text file that describes...there are also benefits gained by lowering the complexity of the screen. For example, the analysis becomes...a lasting impression on me. The slide showed a complex signaling pathway with many receptors, signaling...used these knockout mice to show exactly which components of the known pathway that were essential for ...be very useful for drug discovery, to dissect a complex signaling pathway, and to identify what part of...response to a particular ligand (such as when a component of a microbe or a cytokine is added to a cell)... rapidly performed by targeting all potential components of a signaling pathway. For example, one could...
  4. Transferable Skills Guide: External Collaborations

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    Blog Post
    ...experts that complement your (scientific) skill set and is therefore very useful for complex projects. It...collaborations are becoming increasingly important as more complex approaches to scientific questions become popular...especially when considering small to mid-sized companies and organizations. Addgene as a nonprofit organization... worked with people outside the department to accomplish a variety of goals. For example, I worked with...provided a crash course in this discipline. Getting companies to come to these types of events can be very tough...First I needed to find the right contacts at the companies and then convince the contacts to give me some...repetition. I learned to look at the event from the company’s perspective, focus on the message and to keep ...
  5. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

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    Blog Post
    ...with fluorescent proteins (FPs) localized to compartments other than the cytoplasm. That is, unfortunately...positioning of the FP sequence relative to cell compartment targeting sequences, which often have absolute...that FPs are often poorly suited for cellular compartments other than the cytoplasm. Generally, FPs evolved...subcellular environments, including the organelles that compose the secretory pathway, endocytic vesicles, mitochondria.... Many of the resident proteins within these compartments undergo significant post-translational modifications...inter-chain disulfide bonds between FPs blocks Golgi complex-localized fusions from properly exiting the ER ...and spectral characteristics of the moxFPs are comparable to the non-optimized parental proteins. Our recent...
  6. Understanding GPCR Signaling Using TRUPATH

    Type
    Blog Post
    ...GPCRs (Takeda S et al., 2002) and many downstream complexes involved, it can be difficult for scientists to...in sight (Olsen RHJ et al., 2020). A transducer complex consists of a trimer of three subunits: alpha, ...collectively known as a heterotrimeric G protein. This complex converts a signal received by a GPCR on the cell...is being able to identify specific transducer complexes that are activated in response to a ligand binding...inactive, these subunits are found in a trimeric complex bound to the intracellular surface of the GPCR....Following activation in response to the ligand, the complex will disassociate, resulting in a decreased GFP2...They further used TRUPATH to analyze a panel of compounds across the transducerome on a single GPCR, showing...
  7. The Fluorescent Vegetables in Aptamer Soup

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    Blog Post
    ...locations using Cas9 and track the localization of the complex. Broccoli, the other green fluorescent aptamer,...investigate RNA assembly. The split aptamer is composed of a “Top” and “Bottom” portion, each fused to... RNA. Fluorescence is observed when these RNAs complex and the entire aptamer can hybridize and fold. ...uniqueness of the photostability of the Corn-DFHO complex. For dessert (last but not least), the only fruit-named...Other groups have used Mango to study RNA-protein complexes (Panchapakesan et al., 2017) and short non-coding...identified through microfluidic-assisted in vitro compartmentalisation for their high binding affinity to TO1-biotin...of these variants exhibit increased brightness compared to Mango, and all are photostable and useful for...
  8. An Integrin Antibody Toolkit from IPI

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    Blog Post
    ...conformational complexity There are 24 known mammalian integrins, all heterodimers composed of one of 18...are essential cell surface receptors involved in complex signaling pathways and the linkage of intra- and...-integrin toolset IPI’s anti-integrin toolset comprises 26 recombinant antibodies (rAbs) either produced...-mimetic sequences that imitate this motif and compete with both small molecule integrin inhibitors and...their targeted integrin subtype, even when in competition with other similar integrins, as reported by ...demonstrated that anti-integrin αVβ5.9 “essentially completely blocks all adhesion,” inhibiting the function... rAbs. The other eight are chimeric antibodies composed of rat or mouse variable regions fused with rabbit...
  9. Evolution of Lab Techniques

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    Blog Post
    ...when. Compiling the identity and location of a given nucleotide, a researcher (or a simple computer program...in Neuroscience at Harvard University. Just as computers, cell phones, and cars become more technologically... fluorescently labeled probe. If the DNA is complementary to the probe (for example, has the sequence ...be quantified by the strength of the signal in comparison to a control sample. Southern blotting applications...in standard PCR. This allows the researcher to compare different DNA sequences to see which is more abundant...mapping to investigate DNA sequence content by comparing the fragments created by different restriction... sequencing of many samples at once for later comparison. These next-generation sequencing techniques ...
  10. FPbase: A new community-editable fluorescent protein database

    Type
    Blog Post
    ...non-trivial, however, as FPs are tremendously complicated entities with a large range of characteristics...about FPs than is currently represented at fpvis (complete spectral information, accession numbers, sequences... (PostgreSQL), that aims to eventually be a comprehensive community resource for information about fluorescent...Protein Property Visualization allows for visual comparison of FPs and how they relate to one another. .  ...FPbase Fluorescence Spectra Viewer can be used to compare excitation and emission spectra when available,...you or your lab use frequently) for the sake of comparison or ease of retrieval.  These collection pages...database relating to that set of proteins.  For computer-savvy users looking to incorporate FPbase data...
Showing: 241 - 250 of 928 results