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Showing: 281 - 320 of 779 results
  1. Oh, The Places You Can Go: Careers in Science Communication - Product Development

    Type
    Blog Post
    Published
    Oct. 18, 2017, 1 p.m.
    ...hands-on science lab kits and digital curricula to support them. Caitlin’s interview is broken into two parts...lifelong hobby for Caitlin Runne-Janczy. “I wrote reports for fun in fourth grade because I was weird like...hands-on science lab kits and digital curricula that support these kits, is the perfect blend of these two passions...actually stumbled upon, about 6 months in, this opportunity to do scientific editing.” It was for Cactus ...
  2. Fluorescent Biosensors for Measuring Autophagic Flux

    Type
    Blog Post
    Published
    Jan. 22, 2019, 2:41 p.m.
    ... development of several fluorescent autophagy reporters now allows for the measurement of autophagic flux...makes Keima useful for monitoring mitophagy. It’s important to remember that because Keima’s fluorescent relies... al. "Rosella: a fluorescent pH-biosensor for reporting vacuolar turnover of cytosol and organelles in...using a single fluorescent biosensor." Scientific reports 5 (2015): 12397. PubMed PMID: 26215030. PubMed ...
  3. RUBY-Red Siliques

    Type
    Blog Post
    Published
    March 1, 2022, 2:15 p.m.
    ...challenging and requires specialized equipment. Reporters for studying gene expression have similar drawbacks...added to the palette. RUBY is a bright red pigment reporter whose expresion is visible to the naked eye in... enzymes and a spontaneous step. (B) RUBY is a reporter consisting of these three enzymes expressed under...References  He, Y., Zhang, T., Sun, H. et al. A reporter for noninvasively monitoring gene expression and...
  4. A New Optogenetic Tool Based on AraC Controls Gene Expression with Blue Light

    Type
    Blog Post
    Published
    June 17, 2021, 1:17 p.m.
    ...transcription.However, this system lacks spatio-temporal regulation, and is difficult to reverse, making...the DNA-binding domain of AraC using a mCherry reporter downstream of a PBAD promoter. While none of the...contains BLADE, the PBAD promoter, and a mCherry reporter downstream of the PBAD promoter. To use this plasmid..., including the popular light-inducible nuclear export system (LEXY) here. Optogenetic plasmids from the...
  5. Plasmid Cloning by PCR

    Type
    Blog Post
    Published
    March 29, 2016, 2:30 p.m.
    ...reaction Run PCR to amplify your insert DNA. It is important to use a high fidelity polymerase to minimize .... The fidelity of the polymerase becomes more important the longer the expected PCR product is. You should...temperature based on the melting temperature (Tm) of the portion of the primer that hybridizes to the sequence to...used. No matter which polymerase you use, it is important that you sequence the final product. Additional...
  6. Another Pathway into Cells: iTOP

    Type
    Blog Post
    Published
    June 23, 2015, 8:37 p.m.
    ... cells and activate expression of a luciferase reporter. CPP was not required for protein entry into cells...primary cell types using Cre and various loxP reporters. In both mouse and human embryonic stem cells,...indicating a 70% frequency of biallelic mutations. Importantly, hESCs retained their stemness, indicating that...Plasmids @Addgene: iTOP-tested proteins and reporters Previous Protein Delivery Techniques: Introduction...
  7. Mentoring for Scientists: I Have a Mentor, What Now?

    Type
    Blog Post
    Published
    March 6, 2014, 7:12 p.m.
    ...finding mentors and, perhaps, asked someone to support your career development as your mentor. How do ...mentoring relationship really productive, the most important step you can take is to set goals to work on together...to help a Mentee reach goals. One of the most important contributions made by a Mentor is to help the ...your creative thinking Enhance leadership skills Support inclusion, diversity, and open communication Feel...
  8. The Crispr Babies Saga Shows the Need for Action, Not More Delays

    Type
    Blog Post
    Published
    Dec. 20, 2018, 1:15 p.m.
    ..., the MIT Technology Review dropped a bombshell report. A scientist working in China was using CRISPR/...While the Nuffield Council has recently published a report on the social and ethical issues of genome editing...question of “how do we move forward” is the June 2012 report on the ethics of “Novel techniques for the prevention...diseases. The key success of the Nuffield Council’s report is that when it became clear that this assistive...
  9. Trading Spaces - Visiting Scientist Edition

    Type
    Blog Post
    Published
    Aug. 22, 2023, 1 p.m.
    ...will include, but is not limited to temporary housing, transportation, living expenses, and necessary reagents...visits an institution to perform research there temporarily. The length of stay could be from a month to ...forget to have fun! Visiting is an amazing career opportunity, but also a really good time! If it sounds right...
  10. K. phaffii: Rising to the Occasion

    Type
    Blog Post
    Published
    April 4, 2023, 1 p.m.
    ...cerevisiae to human: The important gene co‑expression modules. Biomedical Reports 7.2 (2017): 153-158. DOI...attention for its powerful promoter of a gene important for methanol usage. This gene promoter, AOX1, ...., Comparative genomics of biotechnologically important yeasts. Proc. Natl. Acad. Sci., 113, 9882-9887...
  11. Reagent Repositories Are Speeding up Science During the Pandemic

    Type
    Blog Post
    Published
    Aug. 4, 2020, 1:15 p.m.
    ...SARS-CoV-2 were developed for broad use and are now important for accelerating research into this virus. One...during the pandemic and in the future, depends on support from the scientific community. Deposits of new ... be deposited into repositories, and financial support to maintain repositories’ capacity for storing,...all ways in which the scientific community can support repositories. Repositories are essential for the...
  12. Fluorescent Protein Travel Awards - FLiPs and Fluorescent Protein Biosensors

    Type
    Blog Post
    Published
    July 27, 2017, 1:11 p.m.
    ...back in with the Addgene blog for future award opportunities. Xin Zhou: Fluorescent Light-inducible Proteins...particularly notes their ability to be precisely spatio-temporally controlled as a key advantage over other inducible...Oligosaccharides (HMOs). HMOs are thought to play an important role in nuturing the development of beneficial...consisting of sfGFP fused to a His-tagged ABC transporter known to bind to the HMO of interest. Fatima ...
  13. Optimizing Donor DNA for Enhanced CRISPR Genome Editing

    Type
    Blog Post
    Published
    March 24, 2016, 2:30 p.m.
    ... 91bp on the PAM-proximal side, consistently supported higher frequencies (up to 60%!) of gene editing... and the targeting guide RNA into cells by electroporation. Results from our lab and others (Lin et al...Kim et al 2014) have shown that this technique supports extremely high frequencies of genome cutting and...nucleofection as (in our hands) this technique supports gene disruption or gene replacement frequencies...
  14. Q&A with Karen Katz and Carl Paratore, the Newest Members of the Addgene Board of Directors

    Type
    Blog Post
    Published
    Feb. 19, 2019, 1:36 p.m.
    ...most important resource that Addgene provides the scientific community? Katz: The most important resource...beyond. In your perspective, what do you think are important considerations for the future of open science?...immensely. Paratore: I have two children active in sports, so I enjoy watching their games.  If I’m not at...
  15. Viral Vectors 101: Viruses as Biological Tools

    Type
    Blog Post
    Published
    March 21, 2023, 1:15 p.m.
    ...permanently integrate into the host genome or temporarily express whatever it encodes. This ability to ...straightforward across applications, while electroporation of a human, for example, isn’t a reasonable...allows you to infect cells and deliver cargo, it’s important to understand their differences to choose the ...PMC413431. 2. Bukrinsky MI, et al. “Active nuclear import of human immunodeficiency virus type 1 preintegration...
  16. Plasmids 101: Inducible Promoters

    Type
    Blog Post
    Published
    Jan. 18, 2018, 2:34 p.m.
    ... phage promoter pR, preventing expression of a reporter gene. When light is present, YFI is inactive, ...preventing repressor cI synthesis and allowing reporter gene transcription to take place. Addgene also...promoter is right for me? Here’s a list of some important variables to consider when choosing an inducible...’re expressing a gene that may be toxic, it’s important that your inducible promoter not be too leaky....
  17. Building and Validating Recombinant Antibodies: A Case Study

    Type
    Blog Post
    Published
    April 5, 2022, 1:20 p.m.
    ...about the process that was used to create this important collection.  Creating the Plasmids To begin constructing...antibody (R-mAb) expression plasmids, allowing for important reagents that could have been lost to continue...sequences available from each plasmid webpage. Importantly, the methods developed by the Trimmer Lab for...why choosing the right secondary is of primary importance. PLoS One. 2012;7(6):e38313. doi: 10.1371/journal.pone...
  18. Developing a cold tolerant E. coli using specialized chaperones

    Type
    Blog Post
    Published
    Jan. 28, 2020, 2:35 p.m.
    ...severely cold conditions. To understand their unique importance, let’s begin with a few basics.  Mesophiles vs...understanding and appreciating their biology. The importance of psychrophilic enzymes From an industrial perspective...decided to create a hybrid system where we could incorporate cold-tolerance inducing genes within a regular...scientist from Addgene. The talk highlighted the importance of reagent repositories and the myriad facilities...
  19. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    Published
    Nov. 19, 2019, 2:08 p.m.
    ...binding ability of its nanobody partner, so it’s important to insert AsLOV2 at a spot in the nanobody that...light to control signaling provides greater spatiotemporal resolution than pharmacological or genetic ...activated Ras/Erk signaling by using a fluorescent reporter for Erk kinase translocation. These results demonstrate...control protein activity Read about RANbodies, reporter nanobody fusions Learn more about using the secondary...
  20. Choosing a CRISPR Nuclease: Site Accessibility, Specificity, and Sensitivity

    Type
    Blog Post
    Published
    Nov. 5, 2019, 1:28 p.m.
    ...nuclease for your experiments, there are three important factors to consider: site accessibility, specificity...potential for off-target cleavage should be an important consideration during any experiment. Sensitivity...stringent PAM specificity. This can be especially important for base editing techniques, where Cas9 must be...many options! Comic by Maya Kostman. Another important consideration when choosing a Cas9 is balancing...
  21. How to Make Friends and Meet People at a Scientific Conference

    Type
    Blog Post
    Published
    Aug. 7, 2014, 1:58 p.m.
    ...scientific conferences. Conferences provide the opportunity to meet people who are interested in the same...the conference. Large conferences have many opportunities but can be overwhelming as far as meeting new...the conference The conference may start in the airport. If you see someone traveling with a poster roll...friendly so stick with those. Don’t miss social opportunities, but don’t overdo it (some of my best studies...
  22. 3 Challenges in Plant Synthetic Biology

    Type
    Blog Post
    Published
    July 22, 2014, 5:46 p.m.
    ...plants are the foundation of life on earth, and opportunities abound to build better fuels, feeds, foods, ...areas in plant biotechnology that are ripe with opportunity. We’ve decided to jump into one of those unexplored...out their mission of creating new forums and opportunities for open innovation in plant synthetic biology...build the plant synthetic biology community and to support more efficient engineering of a better tomorrow...
  23. Form Your Own Peer Mentoring Group: A How-To Guide for Scientists

    Type
    Blog Post
    Published
    Feb. 18, 2014, 4:22 p.m.
    .... But how do you find these elusive teachers, supporters and advisors? I tried to start a more formal ...for their development plans. They all found the support of the group to be intrinsic to their success. ... continue to meet regularly, providing ongoing support, advice and accountability for development goals...mentoring relationship.  Celebrate your successes and support each other as you transition to the next stage ...
  24. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    Published
    Oct. 1, 2019, 1:21 p.m.
    ...people can’t find you on LinkedIn, you will lose opportunities and hiring managers will think it is odd. For... you don’t add a personal note, you waste an opportunity to start things out right. Also, many people ...requests without a personal message and they may report you as spam or “I Don’t Know This Person.” If that...had a chance to proof read. This might not be important for a good friend, but if you are making a professional...
  25. Plasmid Tools for Microbiome Studies

    Type
    Blog Post
    Published
    June 27, 2019, 12:25 p.m.
    ...microbiome by using engineered genetic tools and reporter microbes. Let’s take a look at a few of these ... because in vitro conditions did not optimally support growth of diverse species. These results further...is a ribosome binding site (RBS) followed by a reporter gene. The hairpin blocks translation by sequestering... reveals the RBS and allows translation of the reporter gene resulting in GFP signal. With the addition...
  26. Hot Plasmids - March 2019 - Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins

    Type
    Blog Post
    Published
    March 19, 2019, 1:31 p.m.
    ...2017). However, Acr inhibition is spatially and temporally ubiquitous, making them a rather blunt instrument...versatility opens up the potential for spatial and temporal control in many genetic targeting and editing ...rapidly screen thousands of proteins for one that can report electrical activity via imaging. They took the ...response to light, offers a way to spatially and temporally control cellular processes in vivo. Many photoactive...
  27. Giving gRNAs a Facelift - Synthetic and Beyond

    Type
    Blog Post
    Published
    Oct. 20, 2022, 1:15 p.m.
    ...Nature has evolved ways to prevent degradation of important cellular RNA molecules with post translational...your gRNA. Pro tip: modifications are typically incorporated at the termini of the crRNA molecule (usually...Frontiers in Genome Editing). This is particularly important in experiments in which viability is being compromised...Ramel, MC., et al. Photoswitchable gRNAs for Spatiotemporally Controlled CRSIPR-Cas-based Genomic Regulation...
  28. Human Germline Editing Using CRISPR

    Type
    Blog Post
    Published
    Aug. 10, 2017, 2:19 p.m.
    ...containing Cas9 and two different gRNAs, and electroporated them with an ssODN repair template in induced...in cases of disease prevention. However, it is important to consider that already-tested CRISPR alternatives...clinical applications could be considered. It is important to consider the question of broader applicability... large step forward in the CRISPR field, it’s important to remember that the study hasn’t achieved any...
  29. Rosella: A Fluorescent pH-Biosensor for Studying Autophagy

    Type
    Blog Post
    Published
    April 13, 2017, 2:30 p.m.
    ...spectra. DsRed is the permanent fluorescent tag portion of Rosella: it will emit red fluorescence regardless...mechanisms behind autophagy by tracking what’s being transported to the yeast vacuole (i.e. cytosol, mitochondria...2008). Rosella: A fluorescent pH-biosensor for reporting vacuolar turnover of cytosol and organelles in...using a single fluorescent biosensor. Scientific Reports,5(1). doi:10.1038/srep12397. PubMed PMID: 26215030...
  30. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...publication.   3’UTRome The 3’UTRs of mRNA are important for post-transcriptional regulation in C. elegans...combination of these methods provides unique opportunities to develop computational methods to better understand...system allows scientists to both spatially and temporally knock-down proteins of interest.  Plasmids for...intersectional strategy using a split intein for refined spatiotemporal transgene control in Caenorhabditis elegans...
  31. Overcoming the Challenges of Lentiviral Production

    Type
    Blog Post
    Published
    Aug. 7, 2018, 12:31 p.m.
    ...viral Rev gene from the packaging plasmid and incorporating it into a fourth plasmid. In addition, the promoter...third generation packaging systems, this system incorporates the Tet-off transcriptional activation system...number of harvests will all impact the titer. Importantly, optimized conditions for one transfer plasmid...producing lentivirus, it is time to titer. One important consideration when titering a lentivirus is the...
  32. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...length can and should be varied as it can have important implications for the fusion protein effectivity...upon these original tools that allows for both spatiotemporal protein degradation and quantification of this...et al., 2021.   The AID system relies on a transport inhibitor response 1 (TIR1) expressed under a ...a desired promoter with a specific spatiotemporal expression pattern and an auxin inducible degron (AID...
  33. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ...in a protein.    Cells expressing an RFP reporter plasmid for recombinase activity were exposed ...interest. However, FACS is unable to spatially and temporally target single cells. Now, Francois St-Pierre’...way to isolate individual cells with unique spatiotemporal phenotypes from large heterogeneous cultures...introduction & resolution of two DSBs in a fluorescent reporter. Find the plasmids here Yongsub Kim’s lab engineered...
  34. Design Tips for Prime Editing

    Type
    Blog Post
    Published
    Jan. 23, 2025, 2:15 p.m.
    ...that meant rereading many of the original papers reporting various prime editing tools. These papers are ...editing application. And optimizing its sequence is important, as prime editing efficiency is affected by the...nucleotides. For longer templates, it is even more important to test different lengths and sequences, as unintended... cellular surveillance. To limit unintended incorporation of the pegRNA scaffold sequence into the genome...
  35. Antibodies 101: Stripping and Reprobing Western Blots

    Type
    Blog Post
    Published
    Aug. 1, 2024, 1:15 p.m.
    ...directly to buffer without a re-wetting step. Important: do not dry your membrane with antibodies on it...the ones shared by Bio-Techne, ThermoFisher, or Millipore Sigma. We’ll share the basic composition of these...Alternatively, companies including ThermoFisher, Millipore Sigma, and Azure Biosystems offer pre-made stripping...your western blot several times — some researchers report up to ten cycles! Just remember that a bit of sample...
  36. Hot Plasmids February 2024

    Type
    Blog Post
    Published
    Feb. 20, 2024, 2:45 p.m.
    ...difficult to genetically edit due to toxicity from electroporation or poor cellular entry with other transfection...PAGE editing with viral sgRNA targeting mCherry reporter (mChe), with co-incubation with assist peptide.... CAP-Mac also robustly expressed fluorescent reporters in green monkeys and cultured human neurons, with...slightly reduced efficacy compared to AA9-X1.1. Importantly, AAV1-X1 is not neutralized by pre-existing antibodies...
  37. PhD Applications After COVID

    Type
    Blog Post
    Published
    Jan. 5, 2023, 2:15 p.m.
    ...in-person portion got canceled, taking advantage of virtual meetings can still be a great opportunity to introduce...course of the last few years: recognizing the importance and benefit of remote and video communication...staff have become a new way to allow you to get important information about the campus even if you can’t...
  38. Degrading DNA with Cascade-Cas3

    Type
    Blog Post
    Published
    Feb. 11, 2025, 2:15 p.m.
    ....com.   The Cascade complex Cascade is an important component of the CRISPR Cas3 system. Most Cascade... appears to be conserved. This DNA degradation portion can be bypassed by leaving out Cas3 — a tactic ...is pulled through the Cas3. This mechanism is important for Cas3’s biggest trick. Cas3 likes to bluff,... — Cas3 will definitively degrade the targeted portion of DNA using only a single gRNA. Cas3 appears to...
  39. Fluorescent Proteins 101: Fluorescent Protein Timers

    Type
    Blog Post
    Published
    May 4, 2017, 2:30 p.m.
    ...have been around since 2000 when Terskikh et al. reported the production of dsRed E5. This timer predictably... your experimental setup less cumbersome. 3. Portability across multiple systems Terskikh et al. showed...fluorescent timers that change color from blue to red report on cellular trafficking." Nature chemical biology...Chronology of islet differentiation revealed by temporal cell labeling." Diabetes 58.8 (2009): 1863-1868...
Showing: 281 - 320 of 779 results