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Showing: 521 - 540 of 929 results
  1. Light Sheet Fluorescence Microscopy

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    Blog Post
    ...beam into a thin sheet to illuminate a fluorescent sample and captured the reflected light using a different...microns, illuminates only one thin plane of the sample surrounding the focal plane of the detection lens...multiplying couple-charged device (EMCCD) or complementary metal-oxide semiconductor (CMOS) sensors, it...problem is to illuminate and acquire images of a sample from two opposing sides and merge the images, such...
  2. An Introduction to Adenovirus

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    Blog Post
    ...producer cells where there is E1 and E3 gene complementation. In target cells that are infected by the vector...does not require de novo viral gene expression: Implications for gene therapy. Proc Natl Acad Sci U S A, ...Tales: From the Cell Surface to the Nuclear Pore Complex. PLoS Pathog, 11(6), e1004821. https://doi.org/...in vivo and maintain activated CD8+ T cells: implications for their use as vaccines. Blood, 110(6), 1916...
  3. Tips for arabidopsis transformation

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    Blog Post
    ... of genes and proteins in living plants, to complementing mutant phenotypes. Arabidopsis is amenable to... sweet potatoes (Kyndt et al., 2015)! It sounds simple, and it pretty much is, but there are some tips... Agrobacterium T-DNAs with expressed genes: An example of a naturally transgenic food crop.’, Proceedings...plant genome using CRISPR/Cas9 Using pSiM24 for simplifying plant genetic engineering Using arabidopsis in...
  4. AAVs CREATed for Gene Delivery to the CNS and PNS

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    Blog Post
    ...tissues. This inversion creates a template that’s suitable for PCR amplification using pre-designed primers....increase transduction efficiency, none allow for simple and efficient transduction of both the CNS and ... not lost in a jumble of fluorescent neurons. A simple but flawed approach to multi-color labeling is ...
  5. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    Blog Post
    ...Technique What It Locates ChIP-seq Proteins (for our example later, histones) ChiRP-seq RNA Hi-C DNA (genome-to-genome...appendix DNA is a 3D fractal). Enhancer biology is a complex and dynamic field. We’re going to focus on a tried...People are wrong. In reality, cellular DNA is a complex three-dimensional globule of chromatin. Chromatin...Bedtools getFasta. These regions and their reverse complements were parsed for spCas9 PAM sites (NGG) and then...
  6. Hot Plasmids: Fall 2024

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    Blog Post
    ...Construction of solid matrix-antibody-antigen complexes containing simian immunodeficiency virus p27 using...structures of CRBNmidi alone (A) and in a ternary complex with the multiple myeloma drug mezigdomide and ...on its own, with drug ligands, and in ternary complexes with other proteins, establishing CRBNmidi as ...first use of CRISPR/Cas9 in M. abscessus. The simplicity and efficiency of this dual-plasmid approach ...
  7. Twenty Years of Sharing: Addgene's Viral Vector Service

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    Blog Post
    ... and the complexity of effectively deploying them in the lab somewhat mirrors the complexity of understanding.... Addgene’s Viral Vector Service Besides being complex to use, viral vectors are also difficult both to...broadly useful vectors, a process that isn’t as simple as it seems. Take, for instance, the GCaMP-encoding...
  8. Plasmids 101: Broad Host Range Plasmids

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    Blog Post
    ...within the scientific community, as they allow for simplified transformation processes, and can be used by ... the others are functional in other hosts. For example, the pJD4 plasmid harbors distinct origins (ori1... load (Meyer 2009). Figure 1: Idealized examples of a narrow host range plasmid with only one ori... hosts in which proteins can be expressed. For example, scientists can incorporate interchangeable antibiotic...
  9. Antibodies 101: Reading a Flow Plot

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    Blog Post
    ...granularity, a proxy for nucleic complexity of the cell.  The sample will have been labeled using a panel...parallel.  Let’s imagine we’re looking for cells in a sample that are negative for marker A and positive for...Anderson, D. (2015). Neutrophil Responses to Sterile Implant Materials. PloS One, 10, e0137550. https://doi....
  10. To Codon Optimize or Not: That is the Question

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    Blog Post
    ...the anticodon,  a three nucleotide sequence complementary to the mRNA sequence. The 3’ end of  the tRNA... the 20 amino acids and three stop codons. (B) Example of codon usage among different organisms. There...prokaryotic systems or yeast (Lanza et al., 2014). For example, it may be worth codon optimizing a human gene ...optimized for expression in mammalian cells. For example, Henry Lester’s lab optimized the C. elegans GluCl...
  11. Hot Plasmids - August 2020

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    Blog Post
    ... list of specific structures within cells. For example, to improve nuclear localization of fluorescent...//doi.org/10.1101/160374 Nanobodies- there's a simple method for that! By Michelle Cronin The benefits...Kimiko Hara, and Kazuo Umemura have described a simple method which alleviates the inclusion body problem...problem and makes nanobody production in E.coli as simple as following a DNA miniprep protocol!  First, the...
  12. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

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    Blog Post
    ...only occur through editing by a APOBEC-Cas9n-UGI complex. So how exactly does this work? Figure 1:...DNA editing efficiency of APOBEC-Cas9 editisome complexes in real-time (St. Martin et al., 2019). To create...DNA editing efficiency of APOBEC-Cas9 editisome complexes. The eGFP reporters rely on the correction of ... single base editing by APOBEC-Cas9 editosome complexes. Scientific Reports 9: . https://doi.org/10.1038...
  13. Deciphering the Mysteries of Behavior with Viral Vectors

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    Blog Post
    ...camera or tracking software. Locomotion is a highly complex process on the level of individual neurons and ...motivational and other aspects may be involved. For example, an animal moving around to explore the environment...the elevated plus maze, the light-dark box is a simple device comprised of a brightly lit (risky) and ...behavioral neuroscience to reveal insights into the complex relationship between genes, neurons, and behavior...
  14. CRISPR-based Genome Editing Systems For Editing in E. coli

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    Blog Post
    ...targeting the genomic site of interest. The donor template is supplied separately. To use this system, you.... The optimized plasmid curing method was much simpler and took only ~32 hours instead of ~60 hours. ...strategy for plasmid curing, providing users with a complete editing process. The MUCICAT system While the ... pQCascade) with 4 rounds of transformation to complete the N-acetylglucosamine strain library construction...
  15. Plasmids 101: Plasmid Incompatibility

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    Blog Post
    ...Schumacher, 2012). This concept is a little more complex than simply competing for replication control factors... daughter cell during cell division. They don’t simply rely on chance (or random diffusion) to make this...some types low copy plasmids during cell division simply does not allow for enough time for correct partitioning...
  16. CRISPR 101: Targeting RNA with Cas13a (C2c2)

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    Blog Post
    ...sequence of interest (red) is amplified using Recombinase Polymerase Amplification (RPA) or Reverse-transcription...RT-RPA), respectively. Amplified nucleotides are combined with Cas 13a in complex with crRNA targeting ...
  17. Mesothelioma - Causes, Symptoms, and Treatment

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    Blog Post
    ...is a terrible disease that is, unfortunately, completely preventable. Mainly caused by exposure to asbestos...that there are some genetic factors involved. For example, multiple studies show that certain mutations of...positive potential for treating mesothelioma. For example, patients who have peritoneal mesothelioma – that...immunotherapy that work in different ways. For example, a new drug known as pembrolizumab (Keytruda) causes...
  18. Antibiotic Resistance: An Old Solution but a New Problem

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    Blog Post
    ...become resistant somehow overtime. One fantastic example of intrinsic resistance would be Mycoplasma species...Figure 1): Over-prescription of antibiotics (for example, giving antibiotics for an infection that isn’t...treatment regiment might wipe out bacteria that are completely susceptible to a drug while a full course of ...likely to develop over time. It isn’t feasible to completely eliminate the development of resistance; it’s...
  19. The Challenges of Cell Culture

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    Blog Post
    ...work in cell culture. The problems with cell lines Simply put, the majority of cell line problems come from...when it is important to check their identity. For example, perhaps a working cell bank has been made by a...monitor any changes. Your tracking system could be as simple as a piece of paper on the front of the incubator...passage number, cell line, and date, which you complete each time you passage the cells (as well as recording...
  20. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

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    Blog Post
    ...often have absolute position requirements. For example, a KDEL ER retrieval sequence only functions at... even disrupt fusion protein localization. For example, the formation of inappropriate inter-chain disulfide...disulfide bonds between FPs blocks Golgi complex-localized fusions from properly exiting the ER and fluorescing... that can be used in various combinations. For example, with standard fluorescent microscope filter sets...
Showing: 521 - 540 of 929 results