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We narrowed to 915 results for: Tro;

Showing: 501 - 550 of 915 results

  1. Management for Scientists: What Makes a Good Manager Anyway?

    Type
    Blog Post
    ...recognition come from the successes of the team. A strong sense of engagement in the work Behind-the-scenes...    This is the first in a 5 part series on Introduction to Managing People for Scientists. Subscribe...follow the entire series as it is published. Good introductory reference books on managing people: Skills ...

  2. Choosing Your Perfect Empty Backbone

    Type
    Blog Post
    ...function of Your Gene Of Interest (YGOI) in a controlled environment under various conditions. The first...expression system and go for a lentiviral or a retroviral backbone. This is considered to be a more robust...great for overexpressing YGOI in an isolated, controlled environment. In most cases bacterial expression...

  3. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    ...Engineering Using CRISPR/Cas Systems has expanded out of control. To further consolidate these FAQs, Le Cong worked...gRNAs with the Cas9 nickase which will together introduce cleavage of the target site with efficiency similar...using CRISPR-Cas9 at the lab bench Q4: After the introduction of a mutation into the genome, how can cells...

  4. History of CRISPR Cas - A tale of survival and evolution

    Type
    Blog Post
    ... store a record of invading phages but to also destroy the phage upon re-exposure (2, 3). More specifically...complex binds to the foreign DNA, a cut is made to destroy the invader. Wikipedia, accessed 25 November...ultimate victor will be the species who has the strongest will to survive. Genome engineering and future...

  6. Plasmids 101: Origin of Replication

    Type
    Blog Post
    ...the origin of replication (ori) and all of its control elements. The ori is the place where DNA replication...depending on how they are regulated. Generally, control of replication is referred to as "relaxed" or "...Vectors Copy Number+ ori Incompatibility Group Control pUC ~500-700 pMB1 (derivative) A Relaxed pBR322...

  7. Viral Genome Sequencing - A One Stop Shop for AAV Identity and Serotype Confirmation

    Type
    Blog Post
    ...One of the main tenets of our quality control (QC) mantra is to do our utmost to ensure that scientists...Gene Therapy. Existing methods for AAV quality control Historically, AAV vector QC has been sparse including...number of AAV preparations this level of quality control is sufficient but for viral vector core facilities...

  8. Summer SciComm Series: Master of SciComm

    Type
    Blog Post
    ...interests and areas of expertise. Perhaps the strongest aspect of science communication, then, is its ...address this obstacle in its many forms. A short stroll from my office to the tearoom would often illustrate...Cognitive LoadSummer SciComm Series: Modes of CommunicationIntro to Our Summer SciComm Series!...

  9. Antibodies 101: Epitope Availability

    Type
    Blog Post
    ...cases, pay special attention to designing your controls in validation, as you may need to test different...great deal of frustration when designing and troubleshooting immunoimaging assays. It can also elucidate...Antibodies 101: Polyclonal Antibodies Antibodies 101: Introduction to Antibodies Resources on Addgene.org ...

  10. Another Pathway into Cells: iTOP

    Type
    Blog Post
    ...problems. For instance, it’s much more difficult to introduce a gene of interest into primary cells, so most...both purified CPP-tagged protein and an untagged control could enter cultured cells and activate expression...reporters Previous Protein Delivery Techniques: Introduction of macromolecules into cultured mammalian cells...

  11. Improving Transduction Efficiency with Exosome AAVs

    Type
    Blog Post
    ...transduction profiles in different AAV serotypes both in vitro and in vivo when compared to the conventional AAVs...target less accessible cells, such as brain tumor stromal cells in a mouse model of glioblastoma (Volak et...vector-mediated genetic modification of brain tumor stromal cells after intravenous delivery." Journal of neuro-oncology...

  12. The Crispr Babies Saga Shows the Need for Action, Not More Delays

    Type
    Blog Post
    ...independently verified, the watching world erupted in controversy. Briefly, there are two overlapping, valid critiques...within their respective mandates, to tackle a controversial and ethically fraught rapidly emerging technology...good research practice: computer simulations, in vitro research, animal models, and several stages of human...

  13. The Importance of High Titer for AAV Transductions

    Type
    Blog Post
    ...therefore higher titer will be required. For example, retrograde AAV gets transported up the cell’s axon. While...even larger area, thus necessitating even higher retrograde AAV titers for successful transduction. In another...from and what do they mean? AAV Vector Quality Control: Going the Extra Mile with NGS AAV:  Versatile ...

  14. What Good Citizenship Can Do for Reproducibility in Science

    Type
    Blog Post
    ...reproduce someone else’s result. Then, they hit trouble. The experiment won’t work. Even if it does, they...to share with other researchers to help them troubleshoot and understand. All of this communication and... of incentives. Right now, researchers are not strongly rewarded for being transparent in their communication...

  15. Plasmids 101: Mammalian Vectors

    Type
    Blog Post
    ...components, it may be useful to describe the means of introducing genetic material (such as plasmids) into mammalian... comparable to bacterial transformation (the introduction of DNA into bacterial cells); however, the techniques...plasmid to be expressed transiently. Since the DNA introduced in the transfection process is not integrated...

  17. Plasmids 101: Inducible Promoters

    Type
    Blog Post
    ...Promoters control the binding of RNA polymerase and transcription factors. Since the promoter region ...promoters can be regulated by positive or negative control. Positive inducible In the OFF state, the promoter...system, the activator rtTA (reverse tetracycline-controlled transactivator) is normally inactive and cannot...

  18. A Novice's Perspective on Neuroscience - SfN2017

    Type
    Blog Post
    ... by stories. In retrospect, I should have expected this given that the brain controls everything we do... at Addgene.org Addgene's Viral Service Find Retrograde AAV Browse Optogenetics Plasmids ...

  19. The Many Reasons for Irreproducible Research- and a Vaccine to Eradicate It

    Type
    Blog Post
    ...growth rates will be higher in treatment versus control, and you think there are four important times to...preregistration, but usually with a fully fleshed out introduction section) to one of 222 participating journals..., they will place special emphasis on positive controls and good sample sizes, concerns that are too easy...

  20. Quick Guide to Working with Drosophila Part 3: Genome Engineering in Flies

    Type
    Blog Post
    ...this final installment, I’ll provide a brief introduction as to how you can engineer new transgenic flies...use attP sequence docking sites so that you can control exactly in which locus your transgene ends up (...selection markers include vermillion (another gene controlling eye color) and yellow (a gene affecting the body...

  21. GCE4All: Making Genetic Code Expansion Accessible

    Type
    Blog Post
    ...acid in the media and the tRNAs and synthetase introduced to the bacteria using plasmids. Rapid expansion...plasmid. Third, a second plasmid will be needed to introduce the gene of interest containing the chosen codon...researchers, from selective protein ligation through introducing ncAAs with protein modifications of interest ...

  22. How to Make Friends and Meet People at a Scientific Conference

    Type
    Blog Post
    ... give you theirs! Think about how you want to introduce yourself and what you do. You can probably use... at a conference, but start with a more general intro until you know if the person you are talking to ...people in sessions by sitting next to someone and introducing yourself. Put your phone away! This is a natural...

  23. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    .... Unfortunately, LinkedIn has spam profiles and trolls. People don’t like to connect with complete strangers... much better to use your network to request introductions to people of interest for such discussions.  ...connection can help you gather information, make introductions, and give advice for your interviews.  Pro tip...

  24. dTAG - You're it!

    Type
    Blog Post
    ... molecule degraders” recruit the proteasome to destroy targeted proteins. We previously developed small...lines Treat parental cells (or cells expressing a control -- for example, an FKBP12F36V-tagged LACZ) with...: dTAG-7 and dTAG-13 Erb et al. Transcription control by the ENL YEATS domain in acute leukemia. Nature...

  25. Supporting Rare Disease Research with the 2020 BeHEARD Awards

    Type
    Blog Post
    ...,000 people globally. Pustules form from the uncontrolled activation of the interleukin-36 (IL-36) cytokine...macrophages, T cells, and the recruitment of neutrophils. Though there are IL-36 receptor inhibitors in... significantly reduced levels in women with TS (Trolle et al., 2016). Using lentiviral vectors from Addgene...

  26. Summer SciComm: Preprints

    Type
    Blog Post
    ...communicating the results of the work. Yes, those control experiments are important - but without letting...and finish that experiment (and don’t forget the controls!). And when you’re ready to write up the paper...blog Summer SciComm Series: Modes of Communication Intro to Our Summer SciComm Series!...

  27. Choosing the B(right)est Fluorescent Protein: Aggregation Tendency

    Type
    Blog Post
    ...pitfalls of these experiments are discussed here. In vitro tests for aggregation The tendency of purified fluorescent...concentration 50% of the protein forms dimers. Finally, spectroscopic methods (based on fluorescence polarization)...respectively, are used as positive and negative controls for proper ER structure. Based on these data, ...

  28. Choosing the B(right)est Fluorescent Protein: Photostability

    Type
    Blog Post
    ...attached to a substrate. These in vitro methods allow for a well-controlled environment, but they do not mimic...large number of emitted photons before they are destroyed. Factors that affect photostability The photobleaching...

  29. Addgene: The First Twenty Years

    Type
    Blog Post
    ...institutions with standardized agreements and electronic signatures to dramatically speed up MTA approvals...Massachusetts Nonprofit Network Excellence Award for our electronic MTA system. We also started our blog and YouTube...biology and cloning, since they have reasonable introductions to lots of molecular biology,” — Reddit commentor...

  30. Gendered Innovations: Why Does Sex of the Cell Matter?

    Type
    Blog Post
    ...found that the study saved lives. Reduced use of estrogen plus progestin hormone therapy resulted in 76,...they worry about needing more study subjects and control groups. The important point, however, is that cost...Evoloving Check Out Extracurricular Activities for a Strong Science Career Path Additional Resources Check...

  32. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    ...including endothelial cell-pericyte, neuron-astrocyte, and cancer-stromal cell pairs.   Figure 2: Schematic...single Cas9-VPR in Saccharomyces cerevisiae. To control Cas9 activity and influence DNA repair pathways...

  33. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    ...MTA) approval  Send plasmids to Addgene  Quality control  In this post, we’ll explain how to use our deposit...expression, bacterial expression, lentiviral, retroviral, AAV, RNAi, luciferase, cre/lox, yeast expression...recombination in bacteria) such as lentiviral, retroviral, and AAV plasmids, choose the NEB Stable strain...

  34. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    ...effective as it can result in the retention of introns or the removal of exons. Disrupting promoter or.... Find CRISPR plasmids at Addgene! Knock-in: Introducing tags or stop signals Once Cas9 generates double-strand...breaks, a new DNA sequence can be knocked-in, or introduced, into the break sites. Knock-in experiments are...

  35. 6 Tips for Grant Writing

    Type
    Blog Post
    ... to get past the initial round of screening. I STRONGLY recommend that you ask a PI or mentor (your supervisor... typically includes a couple of sentences of introduction to my area, a line about the research I will...you can find some great information on ELISA troubleshooting and multiplex assays.   Additional Resources...

  36. A Guide to Designing a Scientific Poster: Content, Layout, and More

    Type
    Blog Post
    ...find a title, author names and affiliations, introduction, methods, results, conclusions, and acknowledgements...flanked by two equally-sized columns, where the introduction, methods, conclusions, and acknowledgements ...the work. The other poster sections like the introduction, methods, and figures flank the central region...

  37. Adapting Toehold Switches to Detect Zika Virus

    Type
    Blog Post
    ...sequence (Green et al, 2014). The second was an in vitro paper-based platform that allowed gene circuits ... an extensive infrastructure of molecular and electronic companion technologies that has transformed the...CRISPR/Cas9-mediated genotyping, as well as our electronic reader that provides portable quantification ...

  38. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    ... recombinase.   Once the SSR of choice is introduced, recombination can proceed either by first utilizing...alone rescues the phenotype being studied. Introduction of a conditional point mutation or functional...transduced reporter gene. Generating a FLEx switch to control expression of an optogenetic reporter would ensure...

  39. The Scientific Conference Poster Session: Tips for Success

    Type
    Blog Post
    ...background without an introduction. If someone approaches your poster, introduce yourself and ask about...have extra time to practice at the actual venue. Introduce yourself: I always find it odd when I walk up ...

  40. Tips to Make the Most of a Scientific Conference

    Type
    Blog Post
    ...pitch,” the 30 - 60 second blurb you will use to introduce yourself and what you do. You might want to include...research. Try to avoid jargon in this initial introduction. During the conference When you meet someone...is what their project is. Or maybe you want to introduce yourself to a scientist whose work you are familiar...

  41. PRIDICT: Predicting Efficiencies of Prime Editing Guide RNAs

    Type
    Blog Post
    ...replacements, small insertions, and deletions) without introducing DNA double-strand breaks (Anzalone et al., 2019... a multitude of configurations can be used to introduce specific target modifications. Since this means...University of Zurich (Switzerland), where he developed a strong passion for computational biology. His expertise...

  42. Plasmids 101: Knockout/Knock-In Plasmids

    Type
    Blog Post
    ...resistance gene using Cre recombinase. If GFP is under control of an endogenous promoter, you can use expression...the resistance cassette has been placed into an intron.    Figure 4: A targeting vector to create... Figure 4. Since the loxP sites are located in intronic regions, this gene will still be expressed. You'd...

  43. PhD Applications After COVID

    Type
    Blog Post
    ...selecting an advisor, it is always a good idea to introduce yourself to a few members of your desired department... potential PI should go something like this: Introduce yourself, brief educational background, and that... meetings can still be a great opportunity to introduce yourself and learn more about your schools of ...

  44. Experimenting with New Careers while in Grad School

    Type
    Blog Post
    ...evaluated what lessons I had learned – call it “troubleshooting.” Trying out new experiments and new ideas ...erlenmeyer flask with gold glitter spray paint to make a trophy for the winner. We promoted the contest for about...online science communicators like Phil Plait @BadAstronomer, Emily Graslie from The Brain Scoop YouTube ...

  45. PITChing MMEJ as an Alternative Route for Gene Editing

    Type
    Blog Post
    ...complicated cloning of homology arms. MMEJ: An Introduction There are three primary methods for repairing...NHEJ is error-prone, such a system is likely to introduce additional nucleotides flanking the insertion....the DNA ends anneal incorrectly, MMEJ may also introduce, substitute, or delete nucleotides in addition...

  46. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    ...IgG antibody structures. Functional comparison Strong but Large: Advantages of Antibodies One of the ...are great indirect immunodetection tools is their strong signal strength. This signal strength is due in...ladders from Penn State University Use Nanobodies to Control Protein Activity Learn more about protein tags ...

  47. Capturing a Moment with Marc Zimmer’s “The State of Science”

    Type
    Blog Post
    ...impossible for a career scientist such as Zimmer to introduce any one of these topics without some editorializing...fellow scientists--but that doesn’t make his introduction to these topics any less effective. Who is this...non-scientists in your life, the book may be the introduction they need to grasp the challenges you face in...

  48. Droplet Digital PCR for AAV Quantitation

    Type
    Blog Post
    ... and negative (gray) droplets. The no template control wells should have very few positive droplets. In...positive copy per microliter in the no template control wells. You’ll also notice a reduction in the number...assay, so cross contamination into a no template control (NTC) well is common. Here are some steps you can...

  49. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    ...preferred platform before you start can save a lot of trouble in the long run.  Selecting the method Once you... Requires regular content production. Internet "trolls"   More resources on the Addgene blog:  Summer...  Summer SciComm Series: Cognitive LoadIntro to our Summer SciComm Series    ...

  50. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    ...average of 4 sgRNAs per gene and 1,000 non-coding control sgRNAs. This library was designed to improve on-target...CRISPRko libraries are highly effective at identifying strong hits in genetic screens, they do have several limitations... Luke A., et al. "Genome-scale CRISPR-mediated control of gene repression and activation." Cell 159.3 ...
Showing: 501 - 550 of 915 results