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We narrowed to 789 results for: OMP;

Showing: 481 - 500 of 789 results

  1. Plasmids 101: Optimizing Plasmid Yields

    Type
    Blog Post
    Published
    May 26, 2016, 2:30 p.m.
    ...the cell lysis process. To ensure that lysis is complete, use a reagent like Qiagen’s LyseBlue, which uses... uses color to show you if lysis is incomplete. Protein expression strains are not good for cloning Bacterial...the material used for inoculation. To further complicate matters, plasmid copy numbers are often ambiguous...

  2. Which Fluorescent Protein Should I Use?

    Type
    Blog Post
    Published
    May 20, 2014, 2:06 p.m.
    ...also is also called Bimolecular Fluorescence Complementation (BiFC). 8 points to keep in mind when choosing...divided by 1000. In many cases the brightness is compared to that of EGFP which is set as 1. Some proteins... BD bioscience. ilovegfp – a site with very comprehensive data sheets on many FP variants Plasmids 101...

  3. Isolating Genomic Regions of Interest with the CRISPR System

    Type
    Blog Post
    Published
    May 30, 2019, 12:44 p.m.
    ...engineered DNA-binding molecule such as the CRISPR complex is expressed in cells to be analyzed, the Fujii...another "in vitro" form. In this form, the CRISPR complex, consisting of a recombinant dCas9 protein and ... a genomic locus through a specific gRNA-dCas9 complex. When combined with next-generation sequencing,...

  4. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    Published
    July 30, 2020, 1:15 p.m.
    ...No examination of the state of science would be complete without the inclusion of some interesting case...Prashers will find it increasingly difficult to compete (for funding, etc.) with that produced by the confident...the U.S. environment, and a decline in the competitiveness of U.S. science and technology.” This last ...

  5. Deep Dive: Fixing and Permeabilizing for Immunofluorescence

    Type
    Blog Post
    Published
    Aug. 30, 2022, 1:15 p.m.
    ...your samples, the relationships between cellular components, and the accessibility of your target epitope...work by dehydrating and precipitating cellular components. This method of fixation is good for epitopes...away your target (for example, some cytoskeletal components) and you want to fix and permeabilize in one ...

  6. Better Dyeing Through Chemistry & Small Molecule Fluorophores

    Type
    Blog Post
    Published
    Sept. 8, 2016, 2:30 p.m.
    ...cells can decrease the number of fluorophores, compromising the photon budget. Likewise, the switch from...labeling chemistry easier and more functional in complex biological environments such as live cells and ...brightness of the resulting conjugate, and the complexity of the system. A particularly desirable property...

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

    Type
    Blog Post
    Published
    May 15, 2014, 3:33 p.m.
    ...importance of the entire GFP protein, which is almost completely required to maintain fluorescent activity; very...may not apply. Table 1: The specific mutations comprising common fluorophores Fluorescent Protein Mutations...chromophore to form with an indole rather than phenol component (cyan derivatives) Y66H Blue-shifts the wavelength...

  8. Sonic Hedgehog? Sleeping Beauty? Learn About the Genes Behind Addgene’s Conference Room Names

    Type
    Blog Post
    Published
    April 2, 2019, 1:44 p.m.
    ...1997). We have a lot of plasmids that contain components of the SB transposon system including those from...but think again. Spaghetti squash is actually a component of the fly actomyosin cytoskeleton that regulates...regulates cellular contraction. This network is composed of actin and myosin which interact with each other...

  9. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...C) installation by base editors. Pathways that compete with the desired outcome are not pictured. ...Plant base editor platforms and their molecular components. Adenine base editors for plant We developed...editors. Plant CBE and ABE with expanded PAM compatibility All of the base editors mentioned above are...

  10. To Codon Optimize or Not: That is the Question

    Type
    Blog Post
    Published
    Nov. 12, 2020, 2:15 p.m.
    ...the anticodon,  a three nucleotide sequence complementary to the mRNA sequence. The 3’ end of  the tRNA...resources (Athey et al., 2017) and many DNA synthesis companies, such as IDT, Genewiz and GenScript, offer tools...the other while other codons are under expressed compared to others. Image from Hiss et al., 2017. Most...

  11. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ...laser cleavage and an RNA aptamer that bound the compound malachite green (MG) to create a non-protein based... 4-hydroxybenzylidene imidazolinone (HBI)-like compound allowing it to fluoresce, the Jaffrey lab asked...production have also made aptamers an important component of high throughput assays with microarrays and...

  12. Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design

    Type
    Blog Post
    Published
    Sept. 13, 2018, 1:55 p.m.
    ...decreased p-values of known ricin regulation genes compared to results generated using non-targeting guides...full-length (19-20 bp) or short (17-18 bp) guides. When comparing the toxicity of guides that have 1-bp mismatch...off-target sites, short guides had reduced toxicity compared to full-length guides. Reduced toxicity of short...

  13. Viral Vectors 101: Preparing Pooled Libraries

    Type
    Blog Post
    Published
    July 13, 2023, 1:15 p.m.
    ... amplify well and others don’t. The size and composition of your library can drastically impact what conditions...suffice…and the answer is no. Due to the size and complexity of pooled libraries, NGS is the best way to validate... plasmids didn’t amplify after your screen is completed!  Producing Your Lentiviral Library Once you've...

  14. Twenty Years of Sharing: Expanding Accessibility

    Type
    Blog Post
    Published
    Nov. 21, 2024, 10:47 p.m.
    ...both Addgene’s founding and our growth into the company we are today. As part of our 20th anniversary celebration...pages allowed researchers to easily access and compare their options for tools such as empty backbones...Addgene YouTube channel to add a strong visual component to our educational resources. From 2013–2023, ...

  15. Viral Vectors 101: Pseudotyping

    Type
    Blog Post
    Published
    April 20, 2021, 2:30 p.m.
    ...are differentially inactivated by nonspecific complement mechanisms in serum. Sometimes this is due to...sugars end up in the envelope and are targets for complement-based killing by anti-alphaGal antibodies. The... as described above and is inactivated by the complement system in serum (DePolo et al., 2000). Other ...

  16. Tips for CRISPR Gene Editing in Mice

    Type
    Blog Post
    Published
    June 28, 2016, 10:59 a.m.
    ...ordering the sgRNA is simple and easy. Several companies supply gRNA sequences, such as GenScript, ThermoFisher...order them yourself through whatever DNA supply company you currently use. You can also find many previously...explored and it allowed control over each individual component of the system. However, it is easier to directly...

  17. The Challenges of Cell Culture

    Type
    Blog Post
    Published
    May 5, 2016, 2:30 p.m.
    ...line identity and purity making it easier for comparable studies to be performed on a cell line even decades...passage number, cell line, and date, which you complete each time you passage the cells (as well as recording...through working for a variety of pharmaceutical companies including GSK, AstraZeneca-MedImmune, and Infors...

  18. Plasmids 101: Control Plasmids

    Type
    Blog Post
    Published
    April 9, 2015, 3:29 p.m.
    ...needs a standard against which the results can be compared; results from an experiment lacking the proper...baseline/standard against which other samples can be compared. The Empty Vector Control (mentioned above) could... where expression of that gene is knocked out completely. These controls may or may not be plasmid-based...

  19. Plasmids 101: The Promoter Region – Let's Go!

    Type
    Blog Post
    Published
    April 3, 2014, 8:05 p.m.
    ...promoter present in your plasmid backbone must to be compatible with the type of RNA that needs to be made: if...speaking, promoters in bacteria are less diverse and complex, having fewer parts than those in eukaryotic cells... repression in the presence of glucose or by competitive binding of the anti-inducer fucose Weaker. Commonly...

  20. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

    Type
    Blog Post
    Published
    Sept. 1, 2020, 1:15 p.m.
    ...then following transduction, the partial genomes complement each other to restore the full-expression cassette... has equal or higher transgene expression when compared to using a single over-sized vector, but not always... one of the transgene’s endogenous introns or comprised of non-endogenous sequences, such as a 77bp long...
Showing: 481 - 500 of 789 results