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Showing: 201 - 220 of 860 results
  1. 9 tips for a successful postdoctoral experience

    Type
    Blog Post
    Published
    Oct. 9, 2018, 12:21 p.m.
    ...in with the current literature. Finally, if you give your talk or poster to enough different kinds of audiences... NIH, in the United States) Strong letters of reference that attest to your talent and expertise as a ...data needed to rule out alternative models or to strengthen your new model?  PFs need to be regularly thinking...Leader position applications require 3 letters of reference- the graduate school mentor, the postdoctoral ... and your research well. Who could fill these different roles? A second or third mentor. Therefore, seek...the job market. Additional mentors are not so different from having a thesis committee in graduate school...presentations and will be able to provide letters of reference, informal recommendations, more positive grant...
  2. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...collaboration. The field already has comprehensive reference pages and curated databases for scientists including...discussion on the best strategies and protocols for different experiments.  In this blog post let's take a ...atlas of every C.elegans  neuron. Scientists are currently doing this using two approaches: single-cell RNA-sequencing... peer-reviewed and assigned a DOI that can be referenced. In addition the data published in microPublications...embryonic genes are individually depleted via RNA interference (RNAi). Scientists monitor the effects of RNAi...RNAi using four-dimensional contrast interference (DIC) microscopy and computer imaging processing. The... back frequently for what’s new and popular! References Hammarlund, Marc, et al. "The CeNGEN Project:...
  3. Meet an Addgenie: Insights into Grad School, Career Paths, and More

    Type
    Blog Post
    Published
    June 25, 2020, 1:15 p.m.
    ...My name is Lauren Flynn and I am currently wrapping up my co-op with Addgene as a DNA Sequencing Analyst...concepts that are heard often during undergrad. Lauren Flynn is the Addgenie behind our "Meet an Addgenie...and industry jobs. Since there are a variety of different career paths that don’t all need another degree...can have flexibility and be up to date with the current world. Bioinformatics it is.’” Though she misses...Shannon Rinaldi values loving what she does. Her parents told her that if she found something she loves ...-op. It has been so insightful to learn about different career paths, successes and failures, values, ... Lauren Flynn...
  4. Antibodies 101: Choosing the Right Isotype

    Type
    Blog Post
    Published
    April 6, 2023, 3 p.m.
    ...antibody for your application!  References and resources References Lu, Q. L., & Partridge, T. A. (1998... while polyclonal antibodies contain a mix of different isotypes and subclasses. They each have their ...of clones and thus the potential to bind many different sites on the target protein they tend to have ...polyclonal primary antibody contains a mix of different isotypes and subclasses, use a broadly reactive...secondary antibody binding and therefore the signal strength (Fig. 1). Monoclonal primaries If you do decide... be worth considering an antibody raised in a different species.      Table 1: Isotype considerations...targets, look for primary antibodies raised in different, and distantly related, species, and secondary...
  5. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ...examine three things: Aligning the NGS result to a reference sequence to confirm backbone elements.   Confirming...deposited plasmids is to align the NGS result to a reference sequence like a known backbone sequence. We’re...through BLAST or by direct alignment to an NCBI reference sequence or a sequence provided by the depositor...synthesized regions that have no publicly available reference sequence or plasmids containing genes with many...the depositing laboratory confirms that these differences are expected and do not affect plasmid function...challenging to QC by NGS as they are often quite different from one library to another. They also differ ... Repository sometime soon. Stay posted!     References Guerin K, Rego M, Bourges D, Ersing I, Haery ...
  6. AAV Vector Quality Control: Going the Extra Mile with NGS

    Type
    Blog Post
    Published
    Sept. 12, 2017, 1:44 p.m.
    ... Snapgene and Geneious software. References and resources References Chadeuf G, Ciron C, Moullier P, Salvetti...sequencing reads (~150 bp each) are aligned to the reference sequence of the plasmid used to create the viral...more than 90% of the reads should align to this reference sequence. Second, we perform a megaBLAST search...search on all the reads that did not map to the reference sequence. The resulting list of hits is then carefully...reads into longer DNA contigs without using a reference sequence. The five contigs with the most total...Harten DeMaio K, Sanders E, Tasissa M, Kostman M, Tillgren M, Makana Hanley L, Mueller I, Mitsopoulos A, ... Karen Guerin...
  7. Pooled Library Amplifications

    Type
    Blog Post
    Published
    May 30, 2024, 1:30 p.m.
    ...library protocols you can use as a reference. Table 1: Examples of Different Pooled Libraries at Addgene.  ... plasmids in your library (Are the inserts of different sizes?), and the desired coverage for the library...library amplification protocol. Created with BioRender.com.   The most important factor to consider...For this reason, if your library has inserts of different sizes (such as a transcription factor overexpression...your growth time (e.g., 16-18 hours). Finding reference protocols There are many decisions to make when...pDNA Library Amplification protocol are useful references. Skim through our Pooled Library page to find...“one-size-fits-all” protocol! Each library is different, and you should always experimentally test the...
  8. Genome-wide Screening Using CRISPR

    Type
    Blog Post
    Published
    Aug. 18, 2015, 2:30 p.m.
    ... are composed of many different gRNA-containing plasmids, each with a different genomic target. The goal...1.  What species are your cells derived from? Currently, Addgene carries CRISPR libraries that target ...genome, or a specific class of genes? Addgene currently carries several genome-wide CRISPR libraries and...cell or set of cells containing a mutation in a different gene. Libraries may be available in a 1-plasmid...multiple replicates and several cell types can strengthen your results. Enrichment or depletion of multiple... out our CRISPR Plasmids and Resources Page. References McDade JR, Waxmonsky NC, Swanson LE, Fan M (2016... for Using Pooled Lentiviral CRISPR Libraries. Current Protocols in Molecular Biology 115: . https://doi.org...
  9. Getting to Know Expansion Microscopy

    Type
    Blog Post
    Published
    June 20, 2023, 1:15 p.m.
    ...the integrity of different targets and labels. You may want to check out a few different protocols to look...you’ve been looking for too!     References and resources References Bertiaux E, Balestra AC, Bournonville... two points within ~250 nm of each other. For reference, individual presynaptic terminals, which are jam...optically magnify quite so much. Created with biorender.com Steps 2-4 are not found in standard IHC/ICC...traditional full IgG secondaries, can improve signal strength (Sherry and Stiles, 2022). Fourth, signal continuity...2020). Plus, it’s been demonstrated to work in different model systems, paired with SRM techniques, and...
  10. Transferable Skills Guide: Identifying Your Transferable Skills

    Type
    Blog Post
    Published
    Jan. 11, 2018, 3:29 p.m.
    ...social life and rest. I need it just as much in my current role as Customer Support and Operations Manager...and projects. It is crucial to identify these strengths within yourself, and to demonstrate them to the...collaboration and fail to identify it as a personal strength until it is identified by another person. Similar...situations where you can learn more about possible strengths and weaknesses, and view everything as a learning...naturally to you. How is this new opportunity much different? Might you already have leadership skills that...solution to the person over email. Examine your current and past job descriptions. Scan through all the...piece of paper and list all the skills that your current or past job requires day-to-day, and you’ll get...
  11. Plasmids 101: Colony PCR

    Type
    Blog Post
    Published
    May 12, 2016, 2:30 p.m.
    ...created with the same backbone but that contain different inserts. When you design primers to anneal outside...primer pair to screen for the presence of many different inserts. The downside: this type of primer does... The type of primers you use depends on your preferences. Either way, make sure to test your colony PCR...a standard PCR thermocycling program. One key difference is the plasmid DNA must be released from the ...and without an insert. These controls are quick references you can use when you run your PCR products out... an appropriate molecular weight standard for reference and to add a loading dye with glycerol to your...products have any mutations.  There are lots of different cloning strategies, but regardless of which is...
  12. Twenty Years of Sharing: Expanding Accessibility

    Type
    Blog Post
    Published
    Nov. 21, 2024, 10:47 p.m.
    ..., many plasmids were available, but they often weren’t easily accessible, due to a wide range of logistical...world. This idea, that available and accessible weren’t always the same thing, shaped both Addgene’s founding...distributor for that country. In China, direct shipments weren’t able to clear import control. Partnering with a...form of problem-solving. When universal solutions aren’t enough to ensure accessibility, partnering with...particular topic into beautifully designed and easy-to-reference eBooks. Figure 3: Global readership of the Addgene...which received over two million views from 119 different countries (Figure 4). Four of the five most popular...researchers who use them. The best part of any conference is scientists, from techs to grad students to...
  13. Getting the Most from Your Lentiviral Transduction

    Type
    Blog Post
    Published
    April 7, 2016, 2:30 p.m.
    ...be translated to other lines. Differences in the physiology of different cell types, however, can make...not only between serum from different manufacturers but also between different lots of serum from the same...concentrated dilutions you will be able to overcome differences in receptor expression. It's all in the mix Even...typically employ the positively charged polycation, polybrene. Interestingly, one study found that alternative...Virus? Check out Addgene's New Viral Service! References 1. Hay, R.J., Macy, M.L. & Chen, T.R. “Mycoplasma...tropism of lentiviral vectors through pseudotyping.” Current Gene Therapy 5.4 (2005). 387-98. Pubmed PMID: 16101513...
  14. IBEX Knowledge-Base: A Data Resource for Multiplex Tissue Imaging

    Type
    Blog Post
    Published
    June 8, 2023, 1:15 p.m.
    ...shared ownership. Go check it out! References and Resources References Radtke, A. J., Chu, C. J., Yaniv,...mean highly multiplexed: you can image over 65 different parameters using this method (see Movie S8 from...for spatial biology enthusiasts. This dataset currently includes 1049 community-validated reagents from...fluorescent probes, representing imaging from 47 different tissues. Researchers upload and share both their...resources .csv file for easy filtering and sorting. Reference images can be viewed by clicking on the links ...data, more discussion, and more functionality. Transparency, both in what works and in what doesn’t, and...
  15. Deep Mutational Scanning with One Pot Saturation Mutagenesis

    Type
    Blog Post
    Published
    Feb. 22, 2017, 3:30 p.m.
    ...works well to generate libraries, they all have inherent shortcomings compared to one pot saturation mutagenesis... and scalability (see Supplementary Table 1 of Wrenbeck et al). It uses a uracil labeled wild-type ssDNA... saturation mutagenesis technique described in Wrenbeck et al is a PCR-based approach for generating a...264 basepairs, was the maximum length tested by Wrenbeck et al but it’s likely that longer stretches of...of positive clones. See Supplementary Note 1 in Wrenbeck et al for details on how nicking was optimized...mutagenesis? How would you use it in your research? References 1. Natarajan, Chandrasekhar, et al. "Epistasis...Protocols, pg. 103-109. PubMed PMID: 20676978. 3. Wrenbeck, Emily E., Justin R. Klesmith, James A. Stapleton...
  16. Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior

    Type
    Blog Post
    Published
    March 5, 2019, 1:08 p.m.
    ...construct containing fluorescent proteins (XFP) of different colors to label an organ or entire organism. Because...localization sequence, allowing it to localize to a different area of the cell than CFP and YFP. The most recent...could recombine to activate the expression of a different fluorescent protein. Therefore, each cell could...Confetti mouse was first used to describe the self-renewal of cells in the intestinal crypt, and since then...proliferating cells. Tetbow optimizes Brainbow for current technologies Tetbow (Sakaguchi et al., 2018) overcame...method that makes tissues, such as the brain, transparent so that the 3D architecture of a fluorescent ...can be combined with new imaging techniques.  References Cai, Dawen, et al. "Improved tools for the Brainbow...
  17. New Optogenetic Tools for Cytoskeleton and Membrane Control

    Type
    Blog Post
    Published
    Sept. 28, 2023, 1:15 p.m.
    ...of interest supports a variety of processes in different cell types. One great way to do this is to use...model for optogenetic studies since they are transparent and the developing embryo is accessible for injection...SuperPLD module is optogenetically recruited by different CIB constructs to the plasma membrane or lysosomes...future updates to the collection! Resources and references Additional resources on the Addgene blog Viral....org Optogenetics Guide Optogenetics Plasmids References Aljiboury, A. A., Ingram, E., Krishnan, N., Ononiwu...precise control over vascular endothelial barrier strength. eLife, 12, RP84364. https://doi.org/10.7554/eLife...optogenetic tool for localized, microtubule disassembly. Current Biology, 32(21), 4660-4674.e6. https://doi.org/...
  18. Using Phosphoserine to Study Protein Phosphorylation

    Type
    Blog Post
    Published
    June 23, 2016, 2:30 p.m.
    ...however different proteins will likely achieve different levels of incorporation due to differences in stability... further technical reference and protocols for use of this system, please reference ‘Rinehart Lab reagents...tools such as phosphospecific antibodies, which aren’t available for the majority of documented phosphorylation... length of induction, which will vary between different proteins. Beyond these standard considerations...mitochondrion. You can follow her on Twitter @nieminm.   References 1. Cohen, Philip. "The origins of protein phosphorylation...
  19. Plasmids 101: Common Lab E. coli Strains

    Type
    Blog Post
    Published
    Nov. 7, 2014, 2:56 p.m.
    ...hard to count the number of different commercial strains of E. coli currently available – a quick Google...the intestinal tract of animals. There are many different naturally occurring strains of E. coli, some of...more convoluted due to researchers sharing and renaming samples throughout history. It was likely isolated...tetracycline Additionally, Table 2 provides a quick reference for some of the popular strains, their genotypes...lacZΔM15] hsdR17(rK-mK+)  MC1061 Streptomycin Parent of DH10B/TOP10 and derived strains, common lab ... has a great list of genetic markers for your reference. Browse Addgene's curated list of Bacterial Expression... Matthew Ferenc...
  20. Early Career Researcher Toolbox: Free Tools for Making Scientific Graphics

    Type
    Blog Post
    Published
    June 11, 2019, 1:16 p.m.
    ... to use pre-drawn images in your figures Biorender Biorender is like clip art for scientists. The web-...guarantee Biorender will create it. Additionally, you can upload your own images to the Biorender workspace...workspace. Free Biorender accounts can store 5 workspaces at a time and workspaces are only downloadable in...in a small file size with a Biorender watermark, which is usually ok for informal settings like lab meeting... paid account.  I’m proud to announce that @BioRender (a project my team & I have poured our hearts ...
Showing: 201 - 220 of 860 results