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We narrowed to 803 results for: POR

Showing: 281 - 320 of 803 results
  1. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...impossible to determine specific protein turnover or temporal expression using standard FP-chimeric proteins...second. The first successful irreversible PA-FP reported was PA-GFP. PA-GFP was derived from Jellyfish ...localization, or leading to protein aggregation. Another important parameter to consider is the contrast ratio- a...intensity, possible excitation lasers) it is also important to optimize your activation protocol for your ...photoactivatable fluorescent proteins Some of the most important applications for PA-FPs involve enhancing optical...
  2. Viral Vectors 101: Systemic Capsids

    Type
    Blog Post
    Published
    Oct. 12, 2023, 1:15 p.m.
    ...transduction, cell type specificity, or retrograde transport in neurons. (b) Genetic cargo can be customized...delivery methods include focused ultrasound (FUS), intracorporeal (IC), intracerebroventricular (ICV), intramuscular...specific tissues and cell types. If desired, spatiotemporal control of transgene expression or activity...effective in both mouse strains. It is therefore important to review the literature for use of a capsid in...thank Viviana Gradinaru and Tim Shay for their support and input. Resources and references Recommended... The GPI-Linked Protein LY6A Drives AAV-PHP.B Transport across the Blood-Brain Barrier. Molecular Therapy...expression from mouse to primate neocortex. Cell Reports, 34(13). https://doi.org/10.1016/j.celrep.2021.108754...
  3. IDP and your PI: A Roadmap for Career Planning and Personal Development

    Type
    Blog Post
    Published
    July 21, 2015, 2:30 p.m.
    ...and PI, it’s easy to miss out on beneficial opportunities or to find oneself unsure of the next steps....planning meetings with each trainee to create a supportive, growth-oriented lab culture. The aim of these...the overall tone of the meeting is almost more important. As DePace says, science is full of “terrible ...postdoc training. On the other side, the PI has an opportunity to check in with lab members, determine how to...
  4. pSiM24: Simplifying Plant Genetic Engineering

    Type
    Blog Post
    Published
    Sept. 29, 2015, 2:30 p.m.
    ...As previous blogs have noted, plants are an important foundation for life on Earth. Selective breeding...Since transformation efficiency is inversely proportional to size, and many plant scientists want to transfer... corn. For both β-glucuronidase (GUS) and GFP reporters, as well as multiple transient and transgenic ... Agrobacterium and infected plants. Further opportunities with pSiM24 While these properties of pSiM24...
  5. Cre-ating New Methods for Site-specific Recombination in Drosophila

    Type
    Blog Post
    Published
    May 12, 2015, 1:32 p.m.
    ...Zygosaccharomyces bailii) and B3 (from Zygosaccharomyces bisporus.) Reporter constructs equivalent to site-STOP-site-myrRFP...cross-reactivity of these recombinases, each recombinase and reporter construct pair were tested for excision efficiency...cross-reactivity; however, the other recombinase/reporter pairs were inactive, even at very high recombinase...
  6. Sensing Neuronal Dopamine

    Type
    Blog Post
    Published
    July 30, 2019, 12:59 p.m.
    ...behaving mice to gather the following types of data: Report time-course and concentration of released DA in...optogenetically activated and inhibited neurons in live mice Report modulation of DA signaling during learning and ...moving mice to gather the following types of data: Report endogenous DA release from a single dopaminergic...looming stimulus in vivo in transgenic zebrafish Report DA release in live mice over the course of Pavlovian...
  7. Fostering communication in remote collaborations

    Type
    Blog Post
    Published
    April 21, 2020, 1:14 p.m.
    ...make sure everyone in the meeting has an equal opportunity to contribute. Using video conferencing tools...scientists working in different time zones, it’s important that everyone can access data and drafts of manuscripts...sure there is a point person responsible for incorporating everyone’s suggestions into a final version ... spent time in each other’s labs. This is an opportunity for the researchers involved to learn techniques...
  8. 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 ...
  9. 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.
    ... Accelerating science and supporting scientists globally are the shared mission of both Seeding Labs ...Improvement of Cowpea, a knowledge database for this important agricultural plant. Her current research focuses...proteins in order to manage insect pests and to support sustainable agriculture. For this project the expression...in Mexico. At Addgene we're happy to be able to support diverse groups of scientists working in a wide ...
  10. Fluorescent Proteins 101: Fluorescent Biosensors

    Type
    Blog Post
    Published
    May 18, 2017, 2:30 p.m.
    ...detects. This change then generates a reporter signal. Reporter signals may be electrochemical or light-based...light-based, with luminescent and fluorescent reporters being especially popular. We’ll give you an introduction...glutamate sensor pCMV(MinDis).iGluSnFR. Picking your reporter Don’t forget about the other end of the biosensor...
  11. Tips for Improving Your Next Manuscript

    Type
    Blog Post
    Published
    Nov. 22, 2016, 3:30 p.m.
    ... end of the online course, we were given the opportunity to sign up for a writing intensive weekend in...met as a group for sessions covering individual portions of the manuscript. Stephen Blanke, Beronda Montgomery.... Practice writing everyday Overall, the most important instruction the classes taught me was to write...type up the materials and methods. Over time that portion of the paper will be generated. After you complete...
  12. Behind the Scenes of Addgene’s New Look

    Type
    Blog Post
    Published
    April 28, 2026, 1:15 p.m.
    ...browser cache. Holding onto what matters The most important part of this change was knowing what not to change...have placed in us. We also needed our branding to support multiple contrasting truths. Addgene is a nonprofit...the subtle dimensionality the image manages to portray even in its simplicity. Figure 4: Addgene's...in data sharing with our Data Hub and Developers Portal, because reproducibility and accessibility go beyond...
  13. 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...
  14. 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...
  15. 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 ...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...
  21. 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...
  22. 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...
  23. 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 ...
  24. 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...
  25. 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...
  26. 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...
  27. 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...
  28. 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...
  29. 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...
  30. 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....
  31. 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...
  32. 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...
  33. 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...
  34. 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...
  35. 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 ...
  36. 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...
  37. 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...
  38. 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...
  39. 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...
Showing: 281 - 320 of 803 results