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  1. Fluorescent Proteins 101: Introduction to FRET

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    Blog Post
    ...fluorophore--think of it as a virtual photon 3. Relaxation of the acceptor fluorophore back to its ground...donor-acceptor pair and a change in FRET efficiency correlates with a change in the distance and/or orientation...simultaneously would further increase the amount of correlated information available from a cellular process...
  2. How to Prepare for an Industry Interview

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    Blog Post
    ... HR carefully because sometimes companies have relaxed dress codes for interviews. You can also ask HR... know up front how you plan to take questions.  Relax!  You wouldn’t have made it to the interview if ...position. So prepare for the interview, but then relax.  Additional resources on the Addgene blog: Tips...
  3. Corralling and Cornering the Goldilocks Antibody

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    Blog Post
    ...identical antibodies (See Fig 1.). rAbs are a relatively new technology that takes advantage of DNA sequencing... NOT align with the atlases/literature and is unrelated to the target protein, we categorize the antibody...strong signal. However, exposure time and its relationship to signal depend on what you’re comparing your...
  4. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    Blog Post
    ...   Epigenetics nation stuck with methylation correlation  In the 1980s, a lot of things were cool: Walkmans...problem is that many of these studies report correlations without clearly testing whether a certain methylation... dCas9-TET, allowing one to study the causal relationship between DNA demethylation and gene expression...
  5. Savvy Advocates Needed to Navigate a Scientific Enterprise in Flux

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    Blog Post
    ...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...
  6. Plasmids 101: 5 factors to help you choose the right cloning method

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    Blog Post
    ...restriction enzyme and ligase based cloning is a relatively inexpensive way to get the job done, provided...because the T4 polymerase needed for this method is relatively inexpensive and can be obtained for about $70... or purify DNA fragments from gels. If you’re relatively new to the cloning game, however, or simply looking...
  7. Fluorescent Proteins 101: Visualizing Subcellular Structures & Organelles

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    Blog Post
    ...protein, it's important to validate its function relative to the untagged, wild-type protein. You may, for...the protein of interest and then analyzing the relative colocalization of their fluorescent signals and...One should also be aware of additional problems related to the properties of FPs themselves. These can ...
  8. Fluorescent Proteins 101: Fluorescent Protein Timers

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    Blog Post
    ...of protein concentration. Calibration curves correlating this ratio to the total expression time can therefore... 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...
  9. Addgene's Cancer Collection Pages Connect the Research Community

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    Blog Post
    ...cases arise and millions of people die from cancer-related complications each year. Despite these grim statistics...Ras researchers, one of the most exciting and relatively new resources is the RAS Pathway Clone Collection... initiative to curate our collection of cancer-related plasmids such that each is linked to a known major...
  10. Getting to Know Expansion Microscopy

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    Blog Post
    ...they want to understand the ultrastructural relationships that influence everything from cell division...physically separates molecules while maintaining their relative positions, allowing you to resolve individual ...accessible imaging equipment, ExM protocols utilize relatively inexpensive reagents and are readily adoptable...
  11. The Importance of a Fun Workplace: Company Culture at Addgene

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    Blog Post
    ...employees. The teambuilding culture helps us build relationships and thereby work better together.I realize I...encourage everyone to make an effort to build relationships with their colleagues. It can be easy to get...done everything from kayaking, to field day, to relay triathlons, to 5Ks. Many of these examples we’ve...
  12. Plasmids 101: Protein tags

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    Blog Post
    ... Thus far Plasmids 101 has covered GFP and its related fluorescent proteins, which are sometimes used ...crystallizing it or testing its function. Small ubiquitin-related modifier (SUMO) can help with folding and stabilization...and purification An affinity tag, generally a relatively small sequence of amino acids, is basically a...
  13. Sharing Your Lab Protocols: Using Apps to Save Time & Track Your Experiments

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    Blog Post
    ...and bacterial transformation. And more plasmid-related educational resources can be found in our Plasmids...creating and editing Wikipedia pages, OWW will be relatively easy for you to begin using. For the novice, ...the repository. These protocols show up on the related plasmid pages and can help scientists use these...
  14. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

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    Blog Post
    ...common fluorescent proteins and their mutations relative to wildtype GFP. Although not listed here, many...spectrum are not GFP derivatives, but are instead related to the dsRed protein isolated from Discosoma sp... fluorophores Fluorescent Protein Mutations Relative to Wildtype GFP EGFP F64L; S65T EYFP S65G;...
  15. AAV Titers: Where Do They Come From And What Do They Mean?

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    Blog Post
    ...the ratio of genome-containing viral particles relative to the total number of viral capsids (which can...vectors consist of full particles (white arrowhead) relative to empty particles (black arrowhead). Scale bar...absolute titer values may not be as important as the relative titer values. Finally, because physical titer ...
  16. Supporting Reproducibility with a Connected ELN

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    Blog Post
    ... added on a regular basis, so the ecosystem of related tools is always growing. Beyond the ability to ...understand and/or attempt to reproduce research relating to data deposited into a repository access to ...can be viewed – and conceivably additional work relating to reproducing the original research can be documented...
  17. Plasmids 101: Shuttle Vectors

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    Blog Post
    ...basis of shuttle vectors, which can function in unrelated host species, even from completely different kingdoms...replication machinery. A shuttle vector designed for unrelated bacteria should include oris for both target species... lab tools, and they include both vectors for unrelated bacterial species and those that can shuttle between...
  18. Rett Syndrome: A History of Research and Therapeutic Outlooks

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    Blog Post
    ... expand as Rett scientists deposit their MECP2-related plasmid tools with Addgene and share additional...Methyl-CpG-binding protein 2 mutations and phenotype-genotype correlations. Am J Med Genet 97:147–152 . https://doi.org...Determines the Clinical Course of Rett Syndrome and Related Disorders. Cell 152:984–996 . https://doi.org/10.1016...
  19. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ...Also, in cases where the protein of interest is relatively small, adding GFP may alter diffusion rates. ...Although bioluminescent probes are usually dim relative to fluorescent probes, recent engineering efforts... that the N- and C-terminus of GFP itself are relatively close, thereby minimizing the disruption of the...
  20. March for Science

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    Blog Post
    ...can do and, in this way, science has always been related to government and, consequently, politics. More...Inclusion of data informing policy specifically related to the following subjects: Climate change Vaccines...Healthcare Science education To make scientists relatable (17, 20). This is an effort to show the general...
Showing: 121 - 140 of 436 results