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  1. Viral Vectors 101: Chemogenetics

    Type
    Blog Post
    Published
    July 11, 2023, 1:15 p.m.
    ...neuronal firing. What is chemogenetics? Chemogenetics relies on genetically introducing engineered receptors... However, concerns have been raised over the reliability of using CNO as a DREADD agonist due to its ability...the compound, or compounds, you choose to ensure reliable results (Goutaudier et al., 2019). Using PSAMs...BL, Jin J (2015) The First Structure–Activity Relationship Studies for Designer Receptors Exclusively Activated...
  2. Savvy Advocates Needed to Navigate a Scientific Enterprise in Flux

    Type
    Blog Post
    Published
    Sept. 13, 2016, 2:30 p.m.
    ...embark on or continue their careers in science-related fields. In particular, two recent events have the...note is a ruling in August by the National Labor Relations Board to allow graduate students who work as teaching...university and alterations to the student-university relationship, along with, of course, union dues. Time will...institutional responses to the FLSA ruling. Similarly, from purely a salary perspective, while this is a move in the...
  3. Adapting Toehold Switches to Detect Zika Virus

    Type
    Blog Post
    Published
    Aug. 30, 2016, 2:30 p.m.
    ...of an outbreak of the virus in Brazil that was correlated with greater rates of infection and rare, but...develop our paper-based platform into clinically relevant diagnostics for the Zika virus was daunting. It...Our approach now detects samples at clinically relevant concentrations (1-3 fM; 1x106-fold lower than ...shown that we can detect the virus in a clinically relevant setting. Molecular diagnostics for the Zika virus...
  4. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    Published
    March 31, 2016, 2:30 p.m.
    ... (such as a gene) and initiate the process of releasing the newly synthesized RNA from the transcription... is also known as intrinsic termination, and it relies on the formation of a GC-rich hairpin in the RNA...terminates differently. Polymerase III, for example, relies on a specific sequence and RNA secondary structure...downstream GU-rich region (shown in the figure below) releases the mRNA from the polymerase and creates a free...
  5. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    Published
    Feb. 4, 2025, 2:15 p.m.
    ... activation, and knockout. Most CRISPR screens rely on lentiviral systems, a fact supported by the wide...still beats lentivirus. In mice, AAV is almost entirely non-immunogenic — meaning when conducting in vivo...not integrate into the host genome. AAV instead relies mainly on episomal expression. Episomes are circular...It is important to note, however, that while AAV rarely integrates into the genome, CRISPR may increase...
  6. Fluorescent Proteins 101: Fluorescent Protein Timers

    Type
    Blog Post
    Published
    May 4, 2017, 2:30 p.m.
    ...of protein concentration. Calibration curves correlating this ratio to the total expression time can therefore...used to: Monitor dynamics of vesicle fusion and release from the plasma membrane by fusing various vesicle... situation where one wants to understand the relationship between the age of a cell, protein, or cellular...nascent tissues and the formation of limbs are correlated with changes in gene expression. In a developing...
  7. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

    Type
    Blog Post
    Published
    Dec. 10, 2020, 1 p.m.
    ... Journal of Controlled Release 298:128–141 . https://doi.org/10.1016/j.jconrel.2019.02.009 Wang D, Mou...efficient introduction of DNA into therapeutically relevant, non-transformed mammalian cells. These viral ... could be realized via simple switching of the relevant gRNAs and donor DNA Adenoviral CRISPR/Cas9 genome...
  8. Plasmids 101: Optimizing Plasmid Yields

    Type
    Blog Post
    Published
    May 26, 2016, 2:30 p.m.
    ...good, high quality preps due to its endA1 recA1 relA1 genotype, as these mutations improve plasmid stability...Certain strains, including HB101 and derivatives, release large amounts of carbohydrates that can inhibit... a plasmid whose copy number is unknown, it is entirely possible that you are working with a low copy ...these factors are generally, but not perfectly, correlated. Typical growth times for high copy plasmids...
  9. Drew Endy Introduces the Biobrick Public Agreement Plasmid Collection

    Type
    Blog Post
    Published
    Dec. 12, 2013, 3:35 p.m.
    ...parts have been carefully engineered to support reliable functional composition. In other words, these ...incredible hidden story here. The parts we are releasing simply plug into this existing economic activity...and to the design community: If you can begin to reliably put together 10-gene systems, what do you want...3 May 2013). Vivek Mutalik et al. "Precise and reliable gene expression via standard transcription and...
  10. Viral Vectors 101: The Retroviral Lifecycle

    Type
    Blog Post
    Published
    July 27, 2023, 1:15 p.m.
    ...tools in molecular biology. “Retroviruses” is an umbrella term which encompasses 1.) the gamma-retroviruses...After uncoating, reverse transcription follows the release of the two strands of viral RNA and of the viral...The genome of viral tools are often not virology related at all, and you will instead get expression of ...genome can direct the production, packaging, and release of progeny viral particles. And there you have ...
  11. Negotiating Work and Life: How to Find the Joy

    Type
    Blog Post
    Published
    March 20, 2014, 3:04 p.m.
    ... If you are miserable at home or work, your relationships will suffer in both the short run and the long...agree on before you get enmeshed in a serious relationship. #5 Thou shalt not sweat the small stuff The... make your life easier and to have more time to relax and be with friends and family. #7 Thou shalt create...swim lesson missed can mean a world of mental relaxation. And, I’m not sure I should put this in print...
  12. Plasmids 101: Stringent Regulation of Replication

    Type
    Blog Post
    Published
    June 20, 2024, 1:15 p.m.
    ...All plasmids rely on their host cell's replication machinery in order to replicate—but not always to ...replication independently are said to be under relaxed control, as they only require the host's replication...replication (oriC), where initiation begins. This process relies on the initiation protein DnaA. First, DnaA must... chromosomal DNA ensure that the helicases are released from the DNA once the replication forks reach ...
  13. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...this information to identify a large variety of related bacteria with similar Cas systems. Some of these...knockdown efficiencies. The ability to identify related Cas systems opens up the potential of further development.... But they weren’t done engineering quite yet – surely, they thought, the integration rate could be improved...with mRNA and a synthetic guide. Like PRIME, PASTE relies on single-stranded nicks instead of the double-...
  14. Deciphering the Mysteries of Behavior with Viral Vectors

    Type
    Blog Post
    Published
    Sept. 17, 2019, 12:40 p.m.
    ...integrating neuronal signalling and triggering release of the stress hormone norepinephrine to promote...are chemogenetically activated, norepinephrine release causes a freezing response, a form of immobility...study from 2014 (Bahi et al., 2014) supports the relevance of BDNF in depression. The researchers found that...neuroscience to reveal insights into the complex relationship between genes, neurons, and behavior. There ...
  15. Data Freedom: The Expansion of Data Sharing in Research Publications

    Type
    Blog Post
    Published
    Aug. 5, 2014, 6:51 p.m.
    ...researchers and publishers. Nonetheless, the initial release caused a storm as the organization left open the... data be stored in a retrievable format, we too rarely preserve “raw” data of any sort in a form that ...is important to my lab is three-fold. Firstly, we rely on many other labs to teach us how to do experiments...product. If we don’t take interest in how it is released, we will be in danger of having to deliver on ...
  16. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...to avoid animal use by using semi-synthetic or entirely synthetic VL and VH sequences. Phage display also...scFvs are also used for eye diseases, such as age-related macular degeneration (AMD) since direction injection...of the CAR facilitates signal transduction and release of cytotoxic granules from the T cell. When a CAR... CAR has an scFv that binds cancer-related antigens, binding of the scFv part of the receptor can activate...
  17. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...is low, but since all downstream experiments will rely on that clone not having any confounding mutations...sequencing The only way to quantify off-target effects entirely is to perform whole genome sequencing. While this...major con is that binding by Cas does not always correlate with catalytic activity at those sites, especially...and integrase-defective lentiviral vectors - which rely on insertion of DNA by the NHEJ pathway during DNA...
  18. RNA Interference in Plant Biology: New Tools for an Old Favorite

    Type
    Blog Post
    Published
    Oct. 27, 2020, 1:15 p.m.
    ... of CRISPR technologies, one might incorrectly relegate RNAi to history. The straightforwardness of RNAi...2018) and the model bryophyte Physcomitrium (Physcomitrella) patens (Bezanilla et al., 2005; Nakaoka et...Klueh P, Quatrano RS (2005) An RNAi System in Physcomitrella patens with an Internal Marker for Silencing...2012) An Inducible RNA Interference System in Physcomitrella patens Reveals a Dominant Role of Augmin in...
  19. CRISPR 101: Multiplex Expression of gRNAs

    Type
    Blog Post
    Published
    Sept. 10, 2020, 11:45 a.m.
    ...specific sites that allow them to be cleaved and released. These constructs tend to be smaller than constructs... If Csy4 is not expressed, the gRNAs cannot be released, adding temporal and/or spatial control to the...recognize the tRNA sequences, cleave them, and release the gRNAs. PTGs are assembled into a wt Cas9-containing...editing of six different genes. This system doesn’t rely on any additional or host-dependent factors and ...
  20. Designer PUF Proteins for Any RNA Target

    Type
    Blog Post
    Published
    June 17, 2014, 7:57 p.m.
    ...produced less reliable results. She also notes that for reasons that are not yet entirely clear some PUF...1;8(1):7. doi: 10.1186/1754-1611-8-7. PubMed.  Related Resources Addgene's Synthetic Biology Overview...
Showing: 221 - 240 of 617 results