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Enter a sequence to perform a BLAST-based search of Addgene plasmid sequence databases.

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We narrowed to 807 results for: cha;

Showing: 461 - 480 of 807 results

  1. What’s in Your Tube?: A Quick Guide to Measuring DNA by Spectrophotometry

    Type
    Blog Post
    Published
    July 1, 2025, 1:15 p.m.
    ...260 nm, and 280 nm. Nucleic acids exhibit a characteristic absorption spectra across this range of wavelengths...absorption at 260 nm (A260). Figure 1: Characteristic absorption spectra for pure DNA and likely ...phenol, or guanidine salts, exhibit their own characteristic absorbance spectra, which you can detect by...

  2. Negative Can Be Positive: Open AAV Data with Addgene

    Type
    Blog Post
    Published
    Sept. 6, 2022, 1:15 p.m.
    ... peripheral nervous system presents a special challenge to scientists. What works well in one cell or ...vectors in neuroscience Let’s consider my first challenge when I started working with AAV vectors. I wanted...specifically to allow scientists to evaluate how small changes in vector administration can influence AAV expression...

  3. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    Published
    July 1, 2022, 1:15 p.m.
    ...graphics for visuals. However, it’s much more challenging to design a hands-on interactive activity using...Flexible. Low barrier to entry. Ample distribution channels both digitally and physically. Easy to incorporate...Media Medium to high Combines pros of multiple channels/balance out cons. Flexible. Can allow people to...

  4. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    Published
    Feb. 27, 2018, 2:04 p.m.
    ... an unusual type of IgG antibody called a heavy chain antibody (HCab), which are unique to camels, llamas...and meticulously screening, optimizing, and characterizing several anti-mouse and -rabbit nanobodies. ...secondary nanobody, it’s important to review a few characteristics of your primary antibody: species it was raised...

  5. Minigenomes - a Safe Way to Study Dangerous Viruses Like the Ebola Virus

    Type
    Blog Post
    Published
    March 17, 2016, 2:30 p.m.
    ...investigate viral processes in extreme detail. The mechanism of a particular observation can be easily studied...viral sequences (e.g. promoters) can be studied by changing the minigenome cis-acting sequences and monitoring...24093048. PubMed Central PMCID: PMC3787895. 6. Weik, Michael, et al. "The Ebola virus genomic replication promoter...

  6. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...Two hybrid systems were developed in Saccharomyces cerevisiae in 1989 and are still used extensively ...host strain can help. In order to reduce the chance that the configuration of your fusion proteins ...J.L., Boles, E., André, D., and Frommer, W.B. K+ channel interactions detected by a genetic system optimized...

  7. How to Write a Scientific Review Article

    Type
    Blog Post
    Published
    Feb. 16, 2017, 3:30 p.m.
    ... and forth with. That being said, we probably exchanged dozens of drafts of the manuscript. This is the...transform the document into something cohesive-- change the sentences, make it flow, and start telling ...Overall, writing a review can be overwhelming and challenging. My best advice is don’t overthink it. And to...

  8. Beyond the Blood Brain Barrier: PHP.B Enters the Central Nervous System Via the LY6A Receptor

    Type
    Blog Post
    Published
    July 23, 2019, 12:46 p.m.
    ... PHP.B. The Deverman lab started by seeing how changes in LY6A’s expression affected PHP.B’s transduction...check out these two references: Dayton, Robert D., Mychal S. Grames, and Ronald L. Klein. "More expansive...were engineered, check out these two references: Chan, Ken Y., et al. "Engineered AAVs for efficient noninvasive...

  9. The PAM Requirement and Expanding CRISPR Beyond SpCas9

    Type
    Blog Post
    Published
    Aug. 20, 2020, 2:30 p.m.
    ... PAMs, respectively (Walton et al., 2020). Characterization of Cas9 from additional bacterial species ...additional Cas9 species PAM sequence may not be characterized Non-SpCas9's bind a variety of PAM sequences.... Furthermore, non-SpCas9's may have other characteristics that make them more useful than SpCas9. For...

  10. Transferable Skills Guide: External Collaborations

    Type
    Blog Post
    Published
    April 19, 2018, 1:25 p.m.
    ..., I often found people outside my university approachable, friendly, and helpful. Finally, don’t forget...relationships. Personally, I find this to be the most challenging and time-intensive part of relationship building...people outside your organization just to have a quick chat can be rather tricky (think people based in different...

  11. Tips for CRISPR Gene Editing in Mice

    Type
    Blog Post
    Published
    June 28, 2016, 10:59 a.m.
    ...pre-designed plasmids containing these variants ready for purchase. But what is the easiest and fastest way to use...choose the most effective ones to increase your chances of gene modification in vivo. Find Plasmids for...than the delicate RNA and therefore there has less chance of contamination with RNase leading to degradation...

  12. Tips for Using FRET in Your Experiments

    Type
    Blog Post
    Published
    Nov. 5, 2014, 3:41 p.m.
    ...FRET has also been used to measure conformational changes, cleavage activity using FRET-based biosensors,...method useful for dynamic experiments in which FRET changes are large. Two other methods are commonly used... such as pH or autofluorescence background, can change the fluorescence decay time and have to be taken...

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

    Type
    Blog Post
    Published
    Aug. 5, 2014, 6:51 p.m.
    ... but sufficiently annotated data used to create charts and tables in the paper are in scope. For images...end” figure or table, clicking on the published chart could reveal the underlying data and allow other...work against transparency. This opens science to charges of elitism and for scientists to be hiding behind...

  14. Quick Guide to Near-Infrared Fluorescent Proteins

    Type
    Blog Post
    Published
    Oct. 5, 2021, 1:15 p.m.
    ...blue-light controlled optogenetics, such as channelrhodopsins and tools based on light-oxygen-voltage (LOV...tell us about cellular events via  fluorescence changes occurring due to protein synthesis, degradation...developed based on mIFP6. Learn more about the characteristics, performance, and applications of near-infrared...

  15. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

    Type
    Blog Post
    Published
    April 24, 2015, 2:39 p.m.
    ...OFP (orange), is expressed when Cre is absent; stochastic Cre excision results in one of three recombinations...First, the imaging of Brainbow mouse tissue was challenging due to low fluorescence intensity, caused partially...fluorescent proteins to find those with ideal characteristics (low aggregation, high photostability, and ...

  16. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ...activates/represses gene expression by various mechanisms. The RNA guide is typically 20 nts and the genomic...off-target events Even after you’ve reduced the chance of off-target effects, you still need to do your... knock-out cell line to perform downstream characterization of, isolating 2 or 3 distinct clones to perform...

  17. Is this the right place for me? 8 tactics for choosing a lab

    Type
    Blog Post
    Published
    Oct. 2, 2018, 12:56 p.m.
    ...or lab manager be your actual mentor? Is there a chance the supervisor will be moving on soon?   Will you...teaching the stuff you want to know and display character traits and skills that you hope to grow.  Find... you? Maybe you like things a bit hectic and challenging and this drives your best work. Or is it teamwork...

  18. Recombinase-based State Machines Enable Order-dependent Logic in vivo

    Type
    Blog Post
    Published
    July 28, 2016, 2:30 p.m.
    ...register and catalyzes their recombination, thereby changing the state of the RSM. If an attB-attP pair is ...general would benefit from a more comprehensive characterization of the recombinases at our disposal.  Many...Vectors Can Be Used for Genome Editing Learn about Michael Koeris' Journey from Grad Student to SynBio Entrepeneur...

  19. Plasmids 101: Restriction Cloning

    Type
    Blog Post
    Published
    Feb. 18, 2016, 3:42 p.m.
    ...matrix (usually agarose) to pull your negatively charged DNA through the gel. As indicated in the figure...the gel in wells positioned toward the cathode (- charge). When the voltage is applied across the gel, the... the DNA migrates toward the anode (+ charge). Larger fragments of linearized DNA migrate slower than ...

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

    Type
    Blog Post
    Published
    Nov. 2, 2021, 1:15 p.m.
    ... Figure 2. Schematic diagram showing the mechanism of spontaneous reversion during AAV plasmid amplification...phenotype in a mixed population (Burger, C. 2004, Aschauer, DF. 2013, O’Carroll, SJ. 2021). This is due to...outcome.    References and resources References Aschauer DF, Kreuz S, Rumpel S (2013) Analysis of Transduction...
Showing: 461 - 480 of 807 results