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Showing: 361 - 400 of 821 results
  1. Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior

    Type
    Blog Post
    Published
    March 5, 2019, 1:08 p.m.
    ...variety of species, cell types, and research applications. Labeling neurons with Brainbow The Lichtman... Brainbow 3.1 and 3.2 (described in the same publication) are unique because by default, they are not ...not fluorescent. Instead, they incorporate a truncated, non-fluorescent form of YFP as the default state...recombination can be detected by immunostaining of the truncated YFP. In Thy1-Brainbow mice, some neurons expressed...level of these XFP is not strong enough for all applications. To resolve this, similar systems have been ...transgene in an adult fly. As a stop cassette is located directly upstream of the fluorescent protein genes...
  2. Replacing Paper: Tips for Choosing an Electronic lab Notebook

    Type
    Blog Post
    Published
    July 10, 2018, 1:08 p.m.
    ...priorities in most cases include IP protection, publications and funding. If any of these three pillars crashes...budgets, “a large percentage of survey respondents indicated that cost was a significant barrier to ELN adoption...to digital for example): “… 99% of respondents indicated that ease of use would influence their ELN choice...that their research ‘doesn’t fit neatly into one category;”. The study also showed that It is important ...to keep all their data in one place and avoid scattering intellectual property across various software...collaborative functionalities include comments, notifications, sharing files, assigning team members to certain...
  3. Five Popular Model Organisms, Part 2

    Type
    Blog Post
    Published
    Sept. 29, 2020, 1:15 p.m.
    ...studying genetic modification for their ease of manipulation and their ability to be replicated. Because E...., 2004). Additionally, breakthroughs in gene modification tools and methods such as CRISPR have vastly...Escherichia coli as a Model Organism and Its Application in Biotechnology. In Escherichia coli - Recent...Physiology, Pathogenesis and Biotechnological Applications. InTech. https://doi.org/10.5772/67306 Koornneef... bacteria with superior performance. Nature Communications, 9(1). https://doi.org/10.1038/s41467-018-04899...
  4. 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.
    ...that the oversized AAV genomes are fragmented or truncated when packaged and then following transduction,...and may need to be optimized for each unique application (Trapani et al., 2015).  Expression of smaller...transgene to help prevent the accumulation of such truncated proteins. Examples of use:  Ghosh et al., 2008...design, donor A may be capable of expressing a truncated protein. This can be avoided by excluding a stop...JS (2011) Gene Therapy of mdx Mice With Large Truncated Dystrophins Generated by Recombination Using rAAV6...Improved dual AAV vectors with reduced expression of truncated proteins are safe and effective in the retina ...
  5. Evolution of Lab Techniques

    Type
    Blog Post
    Published
    June 21, 2016, 2:30 p.m.
    ...comparison to a control sample. Southern blotting applications range from confirming the results of cloning...interest by recording DNA abundance throughout the amplification process, rather than just at the end as in standard...experiments allowed researchers to identify the location of genes. With this knowledge, researchers were...was added and when. Compiling the identity and location of a given nucleotide, a researcher (or a simple...sequence thousands of reads at the same time. Other applications of sequencing, such as confirming the results...replaced these, these techniques still have useful applications and have informed many current techniques. For...
  6. Addgene's Website Update

    Type
    Blog Post
    Published
    April 8, 2024, 2:15 p.m.
    ...and easily navigate to educational resources, tools, collections in our catalog, and the Addgene Help ...search bar. And if you’re in the mood to browse our catalog, you can use the links under the search box to ...scrolling up and down the page.  Figure 3: The Education & Tools menu Further down What happens if you ... mission, links to our deposit, request, and educational resources page, and previews for our three most...
  7. Developing Transferable Skills During Science Training

    Type
    Blog Post
    Published
    June 3, 2014, 2:14 p.m.
    ...speak for you (and you for them) Communication Being able to communicate effectively is part of what makes...you can. The colleagues you help will be future advocates and references. Collaborate with another lab,...productive. Take all the opportunities you can to be communicating about science with others. If opportunities ... (be on a speaker committee) Follow industry publications like FierceBiotech to “learn the business” Attend...
  8. Why Do I Need an MTA Anyway?

    Type
    Blog Post
    Published
    May 1, 2014, 8:23 p.m.
    ...results, modifications, and inventions created by the Recipient Right to file patent applications on modifications... about intellectual property rights, pending publications, and commercial use often come up. An MTA can...trials Acknowledgement in recipient’s future publications relating to the material Limited liability...
  9. Is this the right place for me? 8 tactics for choosing a lab

    Type
    Blog Post
    Published
    Oct. 2, 2018, 12:56 p.m.
    ...honestly evaluate your own style of work and communication before making this important decision. I’ll ...Prepare by going sleuthing on the lab website, publication records, LinkedIn, ResearchGate or Twitter. Be...the appropriate first authorship position on a publication of her project and made another lab member first...– including failure to acknowledge good work, allocation of meaningless tasks, removal of responsibility...connections such as serving on Boards? Does the publication record show evidence of industry collaboration...skills guide Learn about careers in science communication Read posts on mentoring for scientists Resources...
  10. Viral Vectors 101: Optogenetic Tools

    Type
    Blog Post
    Published
    June 27, 2023, 1:15 p.m.
    ...channelrhodopsin-2 (ChR2), a blue light-activated cation channel, from the archaebacteria Chlamydomonas ...stimulation. GPCR signaling GPCR signaling is a complicated process involving many downstream signaling mechanisms...break your experiments!  First, closely read the publication, including the supplemental data. You’re most... both of which have extensive collections of publications and information on hardware, optogenetics tools...2003). Channelrhodopsin-2, a directly light-gated cation-selective membrane channel. Proceedings of the ...bidirectional dual-color control of neurons. Nature Communications, 12(1), 1–20. https://doi.org/10.1038/s41467...
  11. Viral Vectors 101: AAV Variables That Matter

    Type
    Blog Post
    Published
    June 1, 2023, 1:15 p.m.
    ...site, or when using chemogenetic tools, where modification of cellular activity outside of your experiment.... A. (2023). Various AAV Serotypes and Their Applications in Gene Therapy: An Overview. Cells, 12(5), ...comparative analysis of constitutive promoters located in adeno-associated viral vectors. PLoS ONE, 9(...Approaches and Further Perspectives of AAV Tropism Modification. Pharmaceutics, 13(5), 750. https://doi.org/...Retrograde Serotype Viral Vectors 101: Viral Applications...
  12. PiggyBac-ing Through the Genome Editing Field

    Type
    Blog Post
    Published
    May 31, 2016, 3:30 p.m.
    ...piggyBac™ technology can be used for numerous applications, including transgenesis, gene-trap screens, ...of the piggyBac™  transposase/transposon gene modification system and the scarless, Footprint-Free™ removal...technology that may be used for a variety of research applications, including making transgenic cell lines and ...PMCID: PMC2567143. 6. S. Radecke, F. Radecke, T. Cathomen, and K. Schwarz, “Zinc-finger nuclease-induced...oligodeoxynucleotides: wanted and unwanted target locus modifications.,” Mol. Ther., vol. 18, no. 4, pp. 743–53, Apr...Addgene.org Find Vectors with the piggyBac™ Transposon Catch up on Everything CRISPR with Our CRISPR Guide Deposit...
  13. Searchable and Sortable gRNAs for Your Next CRISPR Experiment

    Type
    Blog Post
    Published
    May 17, 2016, 2:30 p.m.
    ...with the gRNA), application, cas9 species, PubMed ID, and depositor. The CRISPR applications we currently...shown to work in CRISPR experiments. Addgene’s dedication to resource sharing has led us to develop a searchable...The efficacy of gRNAs is impacted by the target location, target sequence, and model system. Even if a ...and final experimental outcome in the original publication. As you develop and confirm new gRNAs, please...
  14. Seeing Red: Simple GFP Photoconversion

    Type
    Blog Post
    Published
    Aug. 4, 2015, 2:30 p.m.
    ...Since the first research applications of GFP were published in the 1990s, biologists have spent a lot...color was observed after excitation at 488 nm, indicating that spontaneous conversion did not occur. Tobacco... Sattarzadeh et al., Sci Rep. 2015 CC BY 4.0 Applications and limitations of GFP photoconversion One concern...2):131-3.  PubMed. Find plasmids from this publication at Addgene. Subach OM, Patterson GH, Ting LM...nmeth.1664. PubMed. Find plasmids from this publication at Addgene.   Addgene’s Fluorescent Protein...
  15. Who Gives a Tweet? 9 Facts About Scientists on Twitter

    Type
    Blog Post
    Published
    June 26, 2017, 1:31 p.m.
    ...mostly because of this article: “A systematic identification and analysis of scientists on Twitter.” This...from the United States Standard Occupational Classification System  and Wikipedia. 2. Social and computer...: Portion of Tweets with Scientific Domains, Categorized by Discipline. Biologists, neuroscientists, and... Y., & Sugimoto, C. R. (2017). A systematic identification and analysis of scientists on Twitter. Plos...Scientists 5 Reasons to Use Reddit for Science Communication 10 Ways to Share Your Science Why Scientists...
  16. Working 9-5: an Addgene Co-op

    Type
    Blog Post
    Published
    June 2, 2022, 2:15 p.m.
    ...working in your chosen field. This cooperative education experience (co-op) is what has brought me, a second... QC/QA team as a DNA Sequencing Intern. The application process When I first saw the comprehensive job...for the intended position. After submitting my application, I was contacted to participate in a brief fifteen...the depositing labs intended. With the use of applications like SnapGene and Geneious, I was able to determine...currently working on projects for the Science Communication function at Addgene. Working a 9-5 As it turned...
  17. Celebrating Outstanding CRISPR/Cas9 Achievements at the Dr. Paul Janssen Award Dinner

    Type
    Blog Post
    Published
    Sept. 15, 2014, 6:05 p.m.
    ...adaptive bacterial immunity and its potential applications in rewriting the genome. Their award acceptance... same Polish sub-dialect making their Skype communications extra fun) who shared first authorship on their...simpler 1 protein - 1 RNA system.  Dr. Charpentier advocated for the crucial role of basic research in the ... area will accelerate the launch of clinical applications. During the panel discussion, Dr. Mello took...for billions of years (…) Bacteria are really sophisticated”.     New to CRISPR/Cas9 Technology? Learn ...
  18. In Living Color: The Skinny on In Vivo Imaging Tools

    Type
    Blog Post
    Published
    March 27, 2014, 5:14 p.m.
    ...of hues. While those tools are great for many applications, Verkhusha and his lab at Albert Einstein College...light. As the researchers described in Nature Communications last year, “The capability to control spectral...Verkhusha’s team reported another advance in the application of near-infrared fluorescent proteins, iRFP670...fluorescence is because the light becomes very scattered,” Verkhusha explained. Ultrasound wavelengths,...hand, are larger than the size of a cell, so they scatter much less. As a result, ultrasound enables higher...
  19. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    Published
    Nov. 28, 2017, 2 p.m.
    ...transfer expert who understands the somewhat complicated Material Transfer Agreement process that kits...most scientific collaborations fall within this category. Unlike a process team, you don’t necessarily ...functioning (or malfunctioning). Clear lines of communication Few people actually like meetings, but run well...are helpful, they are certainly not the only communication options. Addgene, along with an increasing number...desks away or on the other side of the world, communication platforms like Slack make teamwork easier. Trust...excellent leader, and perfectly clear lines of communication, but if teammates don’t trust each other, none...
  20. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

    Type
    Blog Post
    Published
    Oct. 8, 2020, 1:15 p.m.
    ... difficult to eradicate. You can suppress the growth of mycoplasma but cannot eradicate it completely....Contamination! Tissue culture media often have indicators included in the media that turns yellow from ...important to prevent contamination rather than eradicating it later. Don’t be scared when mycoplasma infects...the first person to face this kind of problem. Educate others when you can and help them understand the...Cc, Drexler Hg (2002) Comparative Antibiotic Eradication of Mycoplasma Infections from Continuous Cell...
  21. Addgene-Seeding Labs Plasmid Grant: Accelerating Science Globally - 5 Scientists, 4 Countries & 3 Continents!

    Type
    Blog Post
    Published
    July 18, 2017, 12:41 p.m.
    ...scientists work on projects spanning from the identification of plant compounds and insecticidal proteins...bacteria. Learn more about the different CRISPR applications in plants.     Transgenic yeast as source of... yeast capable of desaturating fatty acids. Identification of Insecticidal Proteins Linh Bao Ton (M. Sc...Arturo Rivera Solís, Universidad Autónoma de Yucatán, Mexico Dr. Rodrigo Arturo Rivera Solís, Associate...wide range of research fields and geographical locations. We are excited to see how all of the Addgene-...
  22. Tips for Improving Your Next Manuscript

    Type
    Blog Post
    Published
    Nov. 22, 2016, 3:30 p.m.
    ...of any scientist’s career. We use writing to communicate our findings and share them with the world. If...simply writing down your data doesn’t guarantee a publication. There is an art to composing manuscripts and...field of microbiology with multiple high-profile publications. My classmates consisted of graduate students...well as being critiqued added an extra level of application not present in the online class.   Four ways ...paper will be generated. After you complete a publication quality figure, produce the figure, its legend...
  23. New CRISPR Web Resources and #12DaysofCRISPR Recap

    Type
    Blog Post
    Published
    Dec. 12, 2017, 3:13 p.m.
    ...job - we strive to also give you high-quality educational resources to help you do better research. CRISPR...design, sorting the plasmids we have available by category. Each plasmid page now has a helpful graphic to... newest page in the Transcriptional Regulation category already has five blue flame plasmids covering ...providing an avenue for temporary/reversible CRISPR modification. In addition to these subpages, our updated ... HypaCas9 Day 10: Transcriptional regulation: Truncated gRNAs for Regulating Gene Expression and CRISPR...
  24. Year of the Camelid: Antibody Style

    Type
    Blog Post
    Published
    May 9, 2024, 1:15 p.m.
    ...composed of camels, llamas, and alpacas (and their undomesticated counterparts) - not exactly species that jump...to sdAbs becoming valuable tools for diverse applications. For example, RANbodies can be used as an alternative... excitement around using sdAbs in diagnostic applications. For example, fluorescently and radioactively...heavy-chain only antibodies. (A) Overview of genetic modifications made to generate the nanomouse. (VHH = variable...inspired this versatile family of tools, the applications they have already enabled, and the discoveries...
  25. Early Career Researcher Toolbox: Free Online Molecular Biology Tools

    Type
    Blog Post
    Published
    Sept. 12, 2023, 1:15 p.m.
    ...tackling these particular tasks, but they tend to be scattered about the internet. To help you keep your virtual...: Find sequences for plasmids assembled from publications and commercially available sources, as well ... as expression patterns, post-translational modifications and polymorphisms Codon optimization tool: To...making it ready to copy and paste into other applications Primer design tools Many of the above-listed... well as primer design for different cloning applications. Primer3 and Primer3Plus: For general primer...
  26. Cellosaurus: A Cell Line Information Database

    Type
    Blog Post
    Published
    Feb. 21, 2023, 2:15 p.m.
    ...compounds, links to publication references, and cross-references with cell line catalogs and collections....surveying of cell line collections websites and catalogues Literature searches utilizing Google Scholar ...include accession number, species, and assigned category (cancerous, hybridoma, etc.), as well as sex and...manually going through the pdfs of the 26,000 publications cited. If the information seems incomplete or...
  27. Sleeping Beauty Awakens for Genome Engineering

    Type
    Blog Post
    Published
    June 30, 2015, 2 p.m.
    ... Specifically, viruses are able to infect and replicate in host cells, but they are susceptible to cells... though not all, of these defenses. For some applications of genome engineering - such as certain forms...to integrate. Additionally, the TA sequence is duplicated near the gene of interest insertion site.   The...1) an SB transposase, the enzyme required for catalysis of transposition; and 2) a transposon containing...containing the gene-expression cassette that can translocate within the genome. The Sleeping Beauty transposase...
  28. Choosing Your Perfect Empty Backbone

    Type
    Blog Post
    Published
    Aug. 19, 2014, 3:39 p.m.
    ... (e.g. 6xHis containing pDEST-HisMBP). After purification the protein can be released from the resin and...types of yeast expression vectors. Consider your applications and experimental design. You can create a new...more traditional approach of an autonomously replicating vector that carries either a wild-type version...a variety of other types of vectors for most applications used to study gene function. From making transgenic...transgenic animals, gene targeting and genome modifications to reporter vectors (e.g. pBV-Luc) and gene ...
  29. History of CRISPR Cas - A tale of survival and evolution

    Type
    Blog Post
    Published
    Nov. 25, 2013, 10:12 p.m.
    ...distinct types and subtypes using polythetic classification based on evolutionary similarity (5). Type ...2013 (7, 8). Nine months later, more than 1500 publications describe work to improve the tool’s specificity...various species and describe an assortment of applications. Despite the ubiquity of CRISPR/Cas toolkit,... multiple plasmids used for various platform applications. For more information on CRISPR/Cas, check out...for your research. Do you have a cool idea or application that involves CRISPR/Cas technology? Let us know...
  30. Natural or synthetic? How Addgene’s dataset reveals trends in biological innovation

    Type
    Blog Post
    Published
    Nov. 8, 2018, 3:47 p.m.
    ...published their results in a paper in Nature Communications announcing a new bioinformatics tool that can...at its sequence. MIT collaboration for gene classification This inquiry started when Neil Thompson, a ...have generated robust tools that have practical applications in monitoring the accidental or intentional ...from farther away in the tree of life." Nature communications 9.1 (2018): 4425. PubMed PMID: 30356044. PubMed...the lab-of-origin of engineered DNA." Nature communications 9.1 (2018): 3135. PubMed PMID: 30087331. PubMed...
  31. 10 Great Guest Posts We're Thankful For

    Type
    Blog Post
    Published
    Nov. 18, 2016, 3 p.m.
    ...containing only the sequences required for viral replication and transcription as well as reporter genes. ... membranes. Read the full post for potential applications of R-bodies and to find a video of them in action...Medical School describes how AAVs function and indicates important things to consider if you’re getting...these libraries from the post and the associated publication. Optimizing Donor DNA for Enhanced CRISPR Genome... to your DNA sequence of interest. Potential applications of the system include activation and repression...
  32. Using Addgene's New Viral Service for Your Research

    Type
    Blog Post
    Published
    Nov. 17, 2016, 3:30 p.m.
    ... and testing so that researchers can use our educational resources and experience to their advantage should...preparations have worked well in my lab, including in applications where we have delivered them in vivo to the ... help! We’ve been expanding our viral vector educational resources as well, with both posts on the blog...distributing new types of materials. At the time of publication we’ve already fulfilled more than 140 orders ... service as we continue to develop it. More communication and sharing will only help research advance....
  33. Identifying Sequence Elements with SnapGene's Feature Database

    Type
    Blog Post
    Published
    Dec. 21, 2017, 2:06 p.m.
    ...features such as antibiotic resistance markers and replication origins, but there is extensive heterogeneity...microbial strains. It proved to be impractical to catalog every variant of a feature. Instead, we identified...occasional mismatches or indels. Empirical tests indicated that a reasonable rule is to require at least ...that have different properties. To prevent misidentification, we augment the database with new fluorescent...protein variants. The future of DNA feature identification What’s next for common features? We plan to...
  34. Three Tips for Preventing Viral Plasmid Recombination in Your Samples

    Type
    Blog Post
    Published
    Sept. 14, 2021, 1:15 p.m.
    ... (AmpR) and origins of replication (ori and f1 ori) which allow it to replicate.   How can I prevent...the bacterial selection marker and origin of replication. During bacterial culture, only the plasmid with...the antibiotic resistance gene and origin will replicate, and the transgene will be lost. Over time, bacteria...the recombined plasmid is still visible. This indicates that the DNA prep contains a mixture of the full...
  35. Hot Plasmids September 2018 - Optogenetics, RNA Localization, Fluorescent Protein, and Base-editing Tools

    Type
    Blog Post
    Published
    Sept. 18, 2018, 1:33 p.m.
    ...cells, and has potential use for a wide range of applications in cellular biology. Van Haren J et al. Nature...versatile in vivo fluorescent reporter for rapid quantification of base-editing and Cas9 cleavage activity ...plasmid that allows for rapid fluorescence-based quantification of base editors that utilize dCas9 fused to... The reporter constitutively expresses eGFP to indicate reporter abundance, and mCherry fluorescence is...frame-shift mutation within the mCherry reporter. Quantification of editing efficiencies simply involves tracking...
  36. Comparing Cas9 to NgAgo: Can the Argonautes Best CRISPR?

    Type
    Blog Post
    Published
    June 9, 2016, 2:30 p.m.
    ...template is supplied. Find Plasmids from the NgAgo Publication at Addgene Cas9 and NgAgo head to head NgAgo ...differences in cleavage efficiency. If this finding is replicated in larger studies, it will represent a key advantage...site specified by the gDNA. Depending on your application, this could be favorable or unfavorable. In a...PubMed PMID: 27136078. Find plasmids from this publication at Addgene. 2. Swarts, Daan C., et al.  “DNA-... PMCID: PMC4697943. Find plasmids from this publication at Addgene. 3. Swarts, Daan C., et al. “Argonaute...
  37. Hot Plasmids: FRET-Based Biosensors

    Type
    Blog Post
    Published
    May 6, 2014, 1:07 p.m.
    ...Neurobiology has been working on genetically encoded indicators of calcium and other small molecules since the...lymphocytes, too, making them a versatile tool for application in both neuroscience and immunology. Don’t be...imaging for beginners Griesbeck says his calcium indicators can be used in mouse, Drosophila, C. elegans,...give it a shot. “Beginners sometimes think it’s complicated, but actually it is very good,” he said. “It ...his team is now applying it to improve upon an indicator they developed and published in 2010 for visualizing...
  38. Antibodies 101: Introduction to Antibodies

    Type
    Blog Post
    Published
    Jan. 19, 2021, 2:15 p.m.
    ...tool that can be used for a variety of research applications. Within the immune system, antibodies are produced...antibodies to bind proteins is useful for research applications as well because they allow scientists to target...150 kDa, a nanobody is 12-15 kDa.   Research applications for antibodies You can use antibodies for experiments...Let’s dive in and take a look at some of these applications. Western blot Western blots are used to detect... by binding to cell surface receptors. These applications are typically used for investigating signaling...are out there, and how many different research applications they can be used for. Addgene’s Antibody Plasmid...
  39. Pushing the Limits of DNA Assembly

    Type
    Blog Post
    Published
    Sept. 6, 2017, 1:01 p.m.
    ...-guide RNAs – but it also allows you to skip purification steps and end-repair steps with well-designed...that the region of homology doesn’t have to be located at the absolute end of a fragment. This means that...fragment sequences and the polymerase used in the amplification. This tool allows instant updates as fragments...transforma­­­tion or as a PCR template. Some of the applications of the NEBuilder HiFi DNA Assembly Mix include...the limitations associated with otherwise more complicated assembly approaches, and opens the door for new...
  40. Fluorescent Protein Travel Awards - FLiPs and Fluorescent Protein Biosensors

    Type
    Blog Post
    Published
    July 27, 2017, 1:11 p.m.
    ...researcher and science communicator.  Update (7/17/2018): Check out Fatima's recent publication on her HMO work...protein-protein interactions. Beyond these common applications, researchers are finding new ways to apply fluorescent...utility of these FLiPs in a variety of research applications and particularly notes their ability to be precisely...endeavors, Fatima hopes to practice her science communication skills throughout her training and wants to ...
Showing: 361 - 400 of 821 results