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  1. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    ... 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...
  2. What's New in CRISPR - November 2021

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    Blog Post
    ...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...
  3. Fluorescent Proteins 101: Introduction to FRET

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    Blog Post
    ...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 (...
  4. Antibodies 101: Choosing the Right Isotype

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    Blog Post
    ...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 ...
  5. Viral Vectors 101: Calcium Sensors

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    Blog Post
    ...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...
  6. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

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    Blog Post
    ... 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,...
  7. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

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    Blog Post
    ...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...
  8. Bacterial Toxin-antitoxin Systems as Molecular Biology Tools

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    Blog Post
    ...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...
  9. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    ... 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...
  10. Transferable Skills Guide: Time Management

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    Blog Post
    ...few minutes, I just need to split some cells.” Inevitably, this task would take longer than I thought, ... myself flexibility by never placing too many activities too close to one another. Monitoring task progress...) and, at the outset of a task, I outline the activities that are needed to accomplish these goals. Practically... of each day to remind myself of the specific activities that I need to work on. Throughout the day, I...during the times you’ve blocked out for other activities. This is also part of why I do much of my writing...
  11. Deep Mutational Scanning with One Pot Saturation Mutagenesis

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    Blog Post
    ...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...
  12. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

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    Blog Post
    ...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...
  13. Hot Biosensors 2022: Year-End Roundup

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    Blog Post
    ...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...
  14. Transferable Skills Guide: Conflict Resolution

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    Blog Post
    ...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...
  15. Antibodies 101: Single Chain Fragment Variables (scFvs)

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    Blog Post
    ...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...
  16. Proximity Labeling: A Powerful Tool for Protein Complex Purification and Proteomic Mapping

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    Blog Post
    ...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...
  17. Congrats to the 2019 Deck The Lab Winners

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    Blog Post
    ...the Mushroom Kingdom. Kravitz Lab 2019 Holiday Door is up and running! @LexKravitz pic.twitter.com/J5bjHQo565...TannevanderWal) December 18, 2019   Holiday door The Kravitz Lab went all out to deck their door. What a fun... December 3, 2019 Hope you’ve enjoyed the festivities in the last month!  ...
  18. Plasmids 101: Repressible Promoters

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    Blog Post
    ...concentrations are low, pADH1 displays low promoter activity (~20% activity of the strong yeast promoter pTEF). As ...enabling it to bind the promoter and repress pADH1 activity. Researchers have engineered pADH1 variants that...“middle” ADH1 promoter pADH1m, which maintains activity during the late ethanol consumption phase of yeast...is active. In this way, you can interrogate the activity of uncharacterized promoters. Similarly, placing...
Showing: 141 - 160 of 576 results