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We narrowed to 991 results for: igh

Showing: 401 - 420 of 991 results

  1. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    ...Pitfalls of Fluorescent Protein Fusions Observing a bright signal for the first time after cloning an FP fusion...studies and those of others (5, 6, 7, 10, 11) highlight the very real consequences of misfolded dark FP... blue or cyan and yellow moxFPs. The inherent brightness and spectral characteristics of the moxFPs are...standard FPs. The increase in signal is not due to a brighter FP, but rather because of the correct folding ...listed above. In addition, because the moxFPs are highly monomeric, they are an excellent choice for fusions...

  2. Data Freedom: The Expansion of Data Sharing in Research Publications

    Type
    Blog Post
    ...reported in PLOS publications. The policy was not an overnight revelation, rather it was the result of consultations...A distinct (perhaps similarly impoverished lab) might apply different or novel tools and assumptions to...It could be argued that data generators may, in light of the policy, hold onto data longer before publishing...include suggests pragmatic adoption (although it might be argued various authors have simply chosen to ...significant effort. Our standards of data recording are highly variable and usually left to individual researchers...contact more senior colleagues. Secondly, science is highly technical and this has a natural, albeit unintentional...

  3. Antibodies 101: Introduction to Immunofluorescence

    Type
    Blog Post
    ...Immunofluorescence (IF), is an immunoassay that brings to light the cellular world. The technique allows you to ...indicates your target’s location. Some other terms you might see associated with IF are immunocytochemistry (... of other antibodies. But, once you do find the right protocol, multiplex IF can give you impactful and...sample on slides, and confocal   Figure 2: High-level overview of an indirect immunofluorescence...ones? Choosing a secondary is often much more straightforward than choosing a primary, so we’ll start there...the future.  We hope that this post has shed some light on immunofluorescence. The technique can provide...

  4. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    ...kDa single polypeptides that contain the variable light chain (VL) and variable heavy chain (VH) of an antibody...minimizing oligomerization of the scFv. While you might assume that the variable domains of an scFv would...lower affinities, lower long-term stability, and a higher likelihood to aggregate due to their small size...library with plate-bound antigen helps select for high affinity scFvs. Bound phage are then proliferated...with plate-bound antigen to select for scFvs with high affinity binding. Bound phage are then proliferated... since direction injection to the eye results in high drug concentrations in the eye with minimal systemic...

  5. Five Popular Model Organisms, Part 2

    Type
    Blog Post
    ...their regenerative abilities is expected to shed light on human aging pathological developments (Vieira...amphibians in science with early research providing insight into some of the most significant and fundamental... Image from Holger Krisp. The frog genome has high synteny with that of humans so they are often used...the world. With its extensive scientific history, highly characterized genome, and widespread utilization...produces many seeds), self fertilizing, a small yet highly characterized genome, and is easily maintained ...Genome sequence of the Brown Norway rat yields insights into mammalian evolution. Nature 428, 493–521 ...

  6. March for Science

    Type
    Blog Post
    ...contract citizens enter into in order to protect their rights (2). Less formally, governments are the organizations...public will lose trust in scientists if the march highlights data supporting unwanted results (14). Some loss...surrounding a matter or policy should have more weight than how any one person feels about it. And yet...evidence’ on Trump’s wiretap claim The Chronicle of Higher Education: “March for Science” Organizer Says It...Science Foundation: Universities Report Fourth Straight Year of Declining Federal R&D Funding in FY...

  7. Hot Plasmids: Summer 2024

    Type
    Blog Post
    ...Every few months we highlight some of the new plasmids, antibodies, and viral preps in our repository...microscopy (cryo-EM) protocols typically require high concentration and purity of the target molecule,...or hundreds of particles surrounding each of the highly-visible beads on the cryo-EM grid.     ...denaturated (left) or complexes may dissociate  (right). B) Protein samples protected from AWI by helical...authors to determine structures at comparable or higher resolution than using more complex protective methods...

  8. An Integrin Antibody Toolkit from IPI

    Type
    Blog Post
    ...heterodimers composed of one of 18 alpha and one of eight beta subunits. Both subunits have short intracellular...ectodomains can extend and open, binding ligands with high affinity. This extended-open state is key to strengthening...flexibility is crucial for their function. With the right research reagents, researchers can measure this ...developed and defined. According to the Springer lab, a highly specific function-blocking antibody, αVβ3.13, may...as new reproducible rat or mouse rAbs. The other eight are chimeric antibodies composed of rat or mouse... recently showed RGD-binding integrins demanded higher tensions before they would enable cells to spread...

  9. Editor's Choice, July 2016

    Type
    Blog Post
    ... To better highlight the great content contributed by our bloggers each and every month, we've decided...Cpf1 Update: Comparison to Cas9 and NgAgo As you might expect given the excitement surrounding anything...month is from guest blogger James D. Fessenden at Brigham and Women's Hospital. This post describes how to... our posts if you have any questions or useful insights. If you're interested in blogging for us, fill...

  10. Hot Plasmids: Spring 2025

    Type
    Blog Post
    ...Every few months we highlight some of the new plasmids, antibodies, and viral preps in the repository...deactivation). Both have significantly improved brightness, kinetics, and sensitivity. iGluSnFR4f is well-suited...and EGFP-expressing lentiviral backbones designed right here at Addgene. Here's what makes these new backbones...Protein Innovation (IPI) recently released a set of highly-specific recombinant antibodies against three of... — with efficiencies between 5% and 11%. It has higher efficiency and lower indel formation than methods...

  11. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    ...not having any confounding mutations, the risk is high. You are generating a gene therapy product with ...clinical trials. An off-target rate of 5% is far too high when considering human patients and the diseases...measurements at those sites to get an idea of how high the off-target frequency is (more on this below)...sequencing methods. Candidate site sequencing Sites with high sequence similarity to the gRNA can be sequenced...a DNA mutation, off-targets must be quantified slightly differently. For a comprehensive approach, RNA-seq...library screens, the same principle holds true - the higher the number of distinct editing events, the lower...

  12. Antibodies 101: Multiplex Immunofluorescence

    Type
    Blog Post
    ...fixed sample. Depending on the sample type, this might be frozen or formalin-fixed, paraffin-embedded tissue...Depending on your needs, your sample, and targets, you might decide to do simultaneous IF instead (Figure 1B).... Depending on the goal of your experiment, you might need to quantify the intensity of the different ...spatial relationship between the targets. Or, it might be sufficient to describe or classify the labeled...label a sample that expresses your target(s) at a high level, either naturally or by overexpression, for...similar between the two experiments. If not, it might be that the other antibodies are disrupting the ...

  13. Easi-CRISPR: Generating Knock-In and Conditional Mouse Models

    Type
    Blog Post
    ...fortunate that there’s a guide that directs cleavage right before the stop codon!  Figure 3: How to ...guide sequences (arrows) and their PAM (bold highlighted text) and cleavage sites (slashes) are shown....plasmid options for templates - see the example at right using blue flame plasmid pmScarlet_C1! After creating...primers to add T7 promoter-left homology arm and right homology arm to the desired insert (e.g., mScarlet...the main drawback of i-GONAD is that it requires a high-concentration, column-purified DNA template.   ...

  14. What's New in CRISPR - Spring 2019

    Type
    Blog Post
    ...vectors containing high numbers of gRNAs in one overnight reaction. STAgR is highly customizable as vector...In this quarterly blog series, we’ll highlight a few of the new CRISPR plasmids available at Addgene....

  15. Designer PUF Proteins for Any RNA Target

    Type
    Blog Post
    ...RNA is highly desirable for extending the complexity of genetic circuits, allowing for tighter spatio-...Illinois at Urbana-Champaign. The PUF proteins include eight modular repeats, each of which binds a consecutive..., I think, are endless.” Abil says the new tool might even find therapeutic application in addition to...she recommends using standard BsaI in place of the high fidelity version (despite what the original paper...

  16. Scientist Networking: What is an Informational Interview?

    Type
    Blog Post
    ...connection to the hiring manager. They might say yes and they might say no but do not confuse networking...scientist in the academic system has many pluses. I delighted in my graduate school years for allowing me to...personal questions can elicit the most valuable insights you will get from the interaction. Most people...great way to practice for real interviews where you might spend a whole day having to talk with strangers....

  17. Inside Addgene's 10 Year Anniversary Gala

    Type
    Blog Post
    ... all night was hand-picked (like our plasmid samples!) by Addgenies. If you were there, you might have...plenty of delicious desserts. We enjoyed a video highlighting the changes at Addgene over the last 10 years...Perhaps the most heartfelt portion of the entire night was when Melina and Ken called their parents up ...

  18. 6 Steps to Submitting a Resume That Gets Seen

    Type
    Blog Post
    ...customized to highlight different skills and to get the important information in the right place on the...organization is small, any person at the company might be able to help you. If the organization is large...additioanal advice for the science career search.  You might also enjoy the other posts in the Addgene Blog Scientist...

  19. A Practical Guide to Optimizing AAV DIO and FLEx Vector Expression

    Type
    Blog Post
    ...and can exhibit recombination levels as high as 1-3%. In light of this finding, we now include guidance...leaky expression. On the right non-homologous scrambled recombination sights lead to reduced reversion...strategy should work, these vectors suffered from high levels of spurious expression.  As such, researchers...weak and may require longer waiting periods and/or higher injection titers to achieve adequate expression...

  20. An “elegans” Approach to Better CRISPR/Cas9 Editing Efficiency

    Type
    Blog Post
    ... homozygous knock-in animals can be obtained in eight days. The only animals on a plate, other than the... delivery, screening, and more. Here are some highlights from the past few years:  Repair template design...improvements from the Mello lab resulted in strikingly high editing efficiencies, obtaining as many as 100 independent...corresponding to the same strand as the PAM produced a higher editing efficiency, while for edits 3’ to the PAM...templates. They found that Cas9 RNPs could be toxic at high concentrations, and editing efficiency improved ...
Showing: 401 - 420 of 991 results