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We narrowed to 729 results for: NSI;

Showing: 321 - 340 of 729 results

  1. Antibodies 101: Secondary Antibodies

    Type
    Blog Post
    Published
    Dec. 21, 2021, 2:15 p.m.
    ...antibody, this approach can greatly increase the sensitivity of an assay by increasing the number of signaling...place over multiple days. Increased run time is considered one of the major drawbacks of the indirect method...interest - the secondary antibody needs careful consideration before selection. If all the primary antibodies...

  2. Plasmid Tools for Microbiome Studies

    Type
    Blog Post
    Published
    June 27, 2019, 12:25 p.m.
    ...sequencing and qPCR methods are too costly and time intensive to process a large number of microbiome samples...bumble bee and honey bee microbiome. The toolkit consists of modular parts that are assembled with Golden...microbial population dynamics in the gut can provide insight into how the microbiome responds to infection, ...

  3. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    Published
    July 14, 2021, 1:15 p.m.
    ...advantage of polyclonal antibodies is that they are inexpensive. Their short production time and the bulk purification...labs. Polyclonal antibodies also have a high sensitivity to the target protein due to their ability to...or fixation (IHC). Because of their increased sensitivity, polyclonal antibodies are particularly useful...

  4. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

    Type
    Blog Post
    Published
    Sept. 4, 2018, 12:53 p.m.
    ...negative regulation by using a promoter that is responsive to a repressor protein, the increase in expression... of repressor protein also increases thereby intensifying repression of the gene of interest and keeping...the increase in plasmid copy number during the transition to stationary phase, Segall-Shapiro et al. placed...

  5. Antibodies 101: Fab Fragments

    Type
    Blog Post
    Published
    Sept. 5, 2024, 1:15 p.m.
    ...might use it in the lab. What is a Fab Fragment? Consider the classic IgG antibody (Figure 1): it is composed...new components in your antibody tool box. As you consider which tools to use, be sure to think about what... other components of your experiment. These considerations will help you narrow down which antibody format...

  6. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    Published
    Jan. 14, 2016, 3:30 p.m.
    ...that consistently receives around 200 new DNA samples every week. Here we will provide an inside look ...terminators. Detailed instructions on other factors to consider when designing your primers can be found here....

  7. Plasmids 101: Cre-lox

    Type
    Blog Post
    Published
    Jan. 13, 2015, 3:47 p.m.
    ...site-specific recombination events. The system consists of two components derived from the P1 bacteriophage...cyclization recombinase”), is a 38 kDa protein responsible for intra- and inter-molecular recombination ...sites are 34-base-pair long recognition sequences consisting of two 13-bp long palindromic repeats separated...

  8. Antibodies 101: ELISA (Enzyme-linked Immunosorbent Assay)

    Type
    Blog Post
    Published
    Aug. 24, 2021, 1:15 p.m.
    ... this type of ELISA is extremely specific and sensitive to the target protein due to the use of multiple...concentrations of your protein of interest. The optical density (OD) - the measure of light absorbed by a solution...any experimental wells in that range of optical densities. If your standard curve does not have a linear...

  9. CRISPR Activators: A Comparison Between dCas9-VP64, SAM, SunTag, VPR, and More!

    Type
    Blog Post
    Published
    Oct. 6, 2020, 1:15 p.m.
    ...Performance When targeting single genes, SAM consistently shows the highest levels of gene activation ...which are relatively large and are not expressed consistently throughout cells. VPR Description VPR fuses ... dCas9 to activate transcription. This complex consists of the VP64 activator used in other CRISPR activation...

  10. How to Prepare for an Industry Interview

    Type
    Blog Post
    Published
    July 9, 2020, 1:15 p.m.
    ...position, I just had a phone interview. I also transitioned between different lab groups without having ...that have lots of general questions about job responsibilities, performance evaluations, professional development...difficulties. Have your presentation on a flash drive and consider bringing your own laptop as a backup, if the company...

  11. A Look at Addgene's QC Process

    Type
    Blog Post
    Published
    May 6, 2025, 1:15 p.m.
    ...significant plasmid elements. Which differences are considered a QC issue is reviewed yearly at a best practices...populations. All of these topics require additional considerations to resolve. Sequencing and assembly issues ...assembly in Geneious can still provide additional insights to resolve the assembly and determine if there...

  12. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...science and collaboration. The field already has comprehensive reference pages and curated databases for scientists... (CeNGEN) The CeNGEN goal is to establish a comprehensive gene expression atlas of every C.elegans  neuron...Scientists monitor the effects of RNAi using four-dimensional contrast interference (DIC) microscopy and computer...

  13. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ... publication, Mary Dunlop’s lab generated a photosensitive Cre, Opto-Cre-Vvd, by splitting and joining.... Opto-Cre-Vvd is precise, demonstrating low sensitivity to ambient light, and versatile as it can be ...be activated by both low and high-intensity blue light. Unlike other split-Cre systems which can take up...

  14. Viral Vectors 101: Virus Safety

    Type
    Blog Post
    Published
    June 22, 2023, 1:15 p.m.
    ...article we will discuss general viral safety considerations and best practices for handling lab-grown viruses...replicate and continue the infection cycle once inside the host. While the virus can still enter (and ...into the host’s DNA. These viruses also have a propensity to integrate into proto-oncogenes, which can ...

  15. Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools

    Type
    Blog Post
    Published
    May 15, 2018, 12:43 p.m.
    ...faster assembly and disassembly dynamics, higher sensitivity to light, and better distribution of clusters...measure fluctuations of TagRFP-T fluorescence intensity due to interactions with photoactivatable fluorescent...By monitoring changes in TagRFP-T fluorescence intensity at different time points, the authors tracked ...

  16. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...fluorescent in-situ hybridization, methylation-sensitive restriction enzyme digestion, DNA adenine methyltransferase...living cells. Essentially this reporter construct consists of one substrate (the histone-derived peptide)... of these sites was controlled, the reporter consistently showed significantly different FRET levels between...

  17. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

    Type
    Blog Post
    Published
    Feb. 7, 2019, 2:16 p.m.
    ...batch analysis because of its ease-of-use and comprehensive reports. With CrispyCrunch, you get the all ...summarisation score".) For CrispyCrunch, we wanted to consider both factors, as a bench scientist would looking... our CRISPR 101 blog posts Learn about some considerations when designing gRNAs Find other CRISPR software...

  18. Academic vs. Industry Postdocs

    Type
    Blog Post
    Published
    Nov. 13, 2018, 1:22 p.m.
    ...only help. Like any major life decision, the transition felt scary. While I knew two people from graduate...an industry postdoc is something that you’re considering. Like anything, there are pros and cons to postdocs... to enter academia, it is easier to make that transition from an academic setting—especially if job applications...

  19. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
    Published
    Oct. 11, 2018, 12:30 p.m.
    ...result in appropriate levels of colony plating densities. Ligase fidelity and assembly efficiency Five...possibility. Recently, NEB researchers profiled the comprehensive fidelity of cohesive end ligation by this enzyme..."A single-molecule sequencing assay for the comprehensive profiling of T4 DNA ligase fidelity and bias...

  20. No Llamas Required - Synthetic Nanobodies Against Membrane Proteins

    Type
    Blog Post
    Published
    June 18, 2020, 1:15 p.m.
    ...requires a camelid animal facility which can be expensive to gain access to routinely, and it can be especially...the mRNA molecule, forming a ribosome complex consisting of the translated protein (sybody), ribosome,...constructed, they are used to produce a phage library consisting of phages that display the candidate sybodies...
Showing: 321 - 340 of 729 results