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We narrowed to 484 results for: Vit

Showing: 61 - 80 of 484 results

  1. Embracing Serendipity: A Crucial Element in the PhD Journey

    Type
    Blog Post
    Published
    April 25, 2024, 1:15 p.m.
    ...depth and creativity of your work, while offering mental health benefits by encouraging activities beyond.... Widening your search The first step towards inviting serendipity into your research lies in expanding...lab research and gain fresh perspectives. Such activities foster a mindset that embraces the unexpected...openness to unexpected possibilities, you not only invite serendipity into your research but also cultivate...

  2. Comparing Cas9 to NgAgo: Can the Argonautes Best CRISPR?

    Type
    Blog Post
    Published
    June 9, 2016, 2:30 p.m.
    ...DNA guide impaired NgAgo activity, with three mismatches abolishing activity. One-guide faithful NgAgo..., showing that this protein could cleave DNA in vitro, directed by phosphorylated DNA guides. Unfortunately...RNA guides must be expressed from a plasmid or in vitro transcribed, and changes in gRNA secondary structure...HDR, which could lower HDR efficiency. Higher sensitivity to off-targets More research is needed to compare...

  3. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    Published
    March 14, 2017, 2:30 p.m.
    ...what is known as the tumor microenvironment - a vital atmosphere created by the cancer cells to shield...from attack. It is a region of incessant chemical activity, and consists of other cell types, especially ... immune cells that restrict the production and activity of other effector immune cells. TGFβ is also known...death ligand (PD-L1) that inhibits the cytotoxic activity of CTLs and NK cells. These cells would normally...when strengthened through efforts to boost the activity of the immune system, the therapeutic ability ...like CD19 on tumor cells and exhibit cytotoxic activity. CAR-T cells have consistently shown promise in...

  4. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    Published
    Nov. 19, 2019, 2:08 p.m.
    ... reversibly regulation of endogenous signaling activity in cells.  Let’s shed some light on the key components...AsLOV2 at a spot in the nanobody that preserves the activity of both AsLOV2 and the nanobody. As a proof-of-principle...OptoNBs The first application for OptoNBs takes us in vitro: light-controlled affinity purification of unmodified... could bind and block a receptor or a ligand’s activity, then a flip of a light switch could control a...Learn about using nanobodies to control protein activity Read about RANbodies, reporter nanobody fusions...

  5. Hot Plasmids - June 2019 - Optogenetics, Acoustic Reporter Genes, microRNAs, and the CRISPR-Cas9 system CHIME

    Type
    Blog Post
    Published
    June 6, 2019, 12:41 p.m.
    ... been used in immunology for in vitro screens of immune cell activity. However, a CRISPR-based tool for...microbiome and diseases, the immune system, and other vital systems in the body. When a microbe travels through...thereby serves as a sensor of miRNA presence and activity in a given system. If an miRNA is present, it ...to HEK293FT and HeLa cell lines. When the miRNA activity profile for a given cell type is already known...

  6. What's New in CRISPR - November 2021

    Type
    Blog Post
    Published
    Nov. 18, 2021, 2:15 p.m.
    ...would be ideal for such AAV packaging, but their activity in mammalian systems has been in question. Three...and making strategic mutations in the DNA binding cavity of Cas12f. The CasMINI system is less than half...The “V4” version (named CasMINI) had the highest activity for gene activation  and base editing, whereas...for its small size. They were able to increase activity and decrease the gRNA size by intensively remodelling...editors and a gRNA down-sized by almost 40%. The activity of Cas12f1 with these modified gRNAs is comparable...

  7. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    Published
    Oct. 1, 2019, 1:21 p.m.
    ... ability to send invitations. Finally, if you don’t know clearly why you are inviting someone to connect... box, it will send an unpersonalized, generic invitation. Don’t try to connect from the LinkedIn phone... app either as this also results in a generic invitation. 3) Connect with people you have really talked... with this and as long as you personalize the invitation with your intention for connecting, this is probably...

  8. Viral Vectors 101: Calcium Sensors

    Type
    Blog Post
    Published
    Aug. 10, 2023, 1 p.m.
    ...available with improved kinetic and sensitivity parameters. Sensitivity and Localization The calcium concentrations...unnecessary calcium buffering and to increase sensitivity), and is a great FRET sensor option if you have...populations of neurons in vivo to study circuit activity. CaMPARI is available for neuron-specific expression... Tian L, Hires SA, Looger LL. Imaging neuronal activity with genetically encoded calcium indicators. Cold...

  9. Antibodies 101: Choosing the Right Isotype

    Type
    Blog Post
    Published
    April 6, 2023, 3 p.m.
    ...minimize the risk of cross-reactivity. To further limit species cross-reactivity, try to find secondary antibodies...And make sure to check for any reported cross-reactivity when planning your experiment.  When probing ...antibodies increasing specificity and reducing cross-reactivity. For example, if you are using mouse IgG2a and...-adsorbed secondary would limit species cross-reactivity and therefore reduce the background staining ...

  10. Fluorescent Proteins 101: Introduction to FRET

    Type
    Blog Post
    Published
    June 27, 2017, 1:03 p.m.
    ...in the helical structure of spider silk, or the activity of a protein in a synapse. What kinds of tools...to measure specific small biomolecules or gene activity are often intramolecular probes, as the linker...protein-protein interactions, measure the concentration or activity of small molecules, detect cellular processes ...spring”) (Meng et al., 2008), and monitor neuronal activity (voltage sensors), to name a few.   Find Many ...Perspective of Single-Molecule FRET Biosensors and Intravital FRET Microscopy." Biophysical Journal 111.6 (...

  11. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    Published
    May 15, 2014, 3:33 p.m.
    ... understand their activity and visualize the effects of alterations to this activity. Learn more about...protein-protein interactions, visualizing promoter activity, and much more. Read on to learn more about GFP...additional co-factors, substrates, or enzymatic activity – it only requires the presence of oxygen during...almost completely required to maintain fluorescent activity; very little truncation is tolerated, however,...

  12. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ... RNA targeting system, Cas13, the "collateral" activity of the enzyme can lead to off targets and result...protein, and a guide RNA. The enzyme has dual activities: processing pre-CRISPR RNA into mature CRISPR...:spacer duplex without detectable non-specific activity. Its major advantage is the significantly reduced...thousands new integrases with efficient integration activity in human cells. Moreover, they optimized the specific...engineering, enabling even more efficient integration activity. They now had a system that could integrate genes...

  13. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

    Type
    Blog Post
    Published
    Nov. 1, 2018, 12:35 p.m.
    ...system, they were able to monitor lacZ activity over 48 hours in vitro without antibiotic selection. In a ...processes and an antitoxin that suppresses the toxin’s activity. The key to these systems is that the toxin is...death. Conversely, CcdA binds to and blocks the activity of CcdB. Applications of ccdB in plasmid cloning...systems consist of two enzymes that have opposing activities, it is not surprising that they also play toxin-antitoxin...

  14. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

    Type
    Blog Post
    Published
    Aug. 13, 2019, 12:58 p.m.
    ...transcriptome” studies, in which, for example, the activity of all genes in response to an experimental treatment...engages existing gene regulatory mechanisms to block activity and does not work easily in zebrafish.) Morpholinos... stages and reconstructed the patterns of gene activity and cell divisions that coordinate development...neuroscience investigations. For example, neuronal activity can be tracked in whole brains of swimming, actively...Zebrafish are also amenable to manipulation of brain activity: optogenetic approaches can be used to determine...

  15. Hot Biosensors 2022: Year-End Roundup

    Type
    Blog Post
    Published
    Dec. 6, 2022, 2:15 p.m.
    ...displays enhanced brightness, expression, and sensitivity compared with earlier SF-iGluSnFR. Image from... response kinetics and increased brightness, sensitivity, and photostability under two-photon illumination...signaling receptors, but the options for measuring activity of specific RTKs are limited. In a new preprint...plasmids here!   Torres Cabán CC, et al. Tuning the Sensitivity of Genetically Encoded Fluorescent Potassium ...LiLac has improved response size and reduced sensitivity to pH and calcium compared to previous lactate...

  16. Transferable Skills Guide: Conflict Resolution

    Type
    Blog Post
    Published
    Jan. 4, 2022, 2:15 p.m.
    ...workplace is inevitable, but having who can help resolve these conflicts is not inevitable. When you know...operations and keeping our customers happy, but inevitably there will be gray areas that either a) overlap...meet. Most people can’t maintain that level of positivity past the age of five. But it does mean that even...competing, or accommodating, if you find yourself gravitating most frequently towards these approaches, you...

  17. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...for with in vitro display methods such as phage display (Bradbury et al., 2011). In vitro selection avoids...sequences are expressed as scFvs and screened with in vitro assays to select for strong binders. Then the sequences...2011) Beyond natural antibodies: the power of in vitro display technologies. Nat Biotechnol 29:245–254 ...of antibody binding sites: recovery of specific activity in an anti-digoxin single-chain Fv analogue produced...

  18. Proximity Labeling: A Powerful Tool for Protein Complex Purification and Proteomic Mapping

    Type
    Blog Post
    Published
    Dec. 2, 2019, 2 p.m.
    ...A major limitation of APEX was its low sensitivity. Sensitivity could be increased with higher expression...aggregation. The Ting lab hypothesized that the low sensitivity was due to suboptimal folding or stability. Thus...identified a mutant with significantly increased sensitivity that did not affect the function or efficiency... BirA* molecule that can reassemble to restore activity when fused to two interacting proteins (Schopp...

  19. Deep Mutational Scanning with One Pot Saturation Mutagenesis

    Type
    Blog Post
    Published
    Feb. 22, 2017, 3:30 p.m.
    ...phage display assays, ubiquitination activity assays, toxin activity, small molecule binding, growth rate...discover unexpected epistatic changes in protein activity. See Natarajan et al for an example of this. ...Error-Prone PCR”. Methods in Molecular Biology In Vitro Mutagenesis Protocols, pg. 103-109. PubMed PMID:.... Stephany, and Stanley Fields. “Measuring the Activity of Protein Variants on a Large Scale Using Deep...

  20. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    Published
    April 9, 2019, 1:13 p.m.
    ...other proteins, it may still block the function or activity of the tagged protein because of its size. This...There are several ways to measure stickiness. In vitro, ultracentrifugation or gel filtration is the most...brightness, photostability, maturation time, and acid sensitivity of various fluorescent proteins (Botman et al...Determining other aspects of functionality (catalytic activity or interactions) can be challenging. If a fusion...fusion proteins: random insertion of GFP with an in vitro transposition reaction." BMC neuroscience 3.1 (2002...
Showing: 61 - 80 of 484 results