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Showing: 401 - 420 of 963 results
  1. Summer SciComm Series: Cognitive Load

    Type
    Blog Post
    ...to read a formulaic fiction story that doesn’t require any detailed retention of information or formulation... extraneous cognitive load refers to the way information or tasks are presented to a learner; and germane... particular way of organizing and connecting information and a logic to the types and timing of questions...question constantly (and so should you!)  Amount of information and level of detail Again, this is an obvious...load, than certainly amount of attention and information input. If you’re reading a book, you only have...quickly they can understand and process your information. A class of three year olds is unlikely to be...I would think about how I was presenting the information. Maybe I needed to remove a distraction, such...
  2. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    ...copies of your predicted sequence information. Collect plasmid information in a binder or digital notebook...barcoded tubes and plates. The critical pieces of information for a given plasmid are the backbone, inserted..., the predicted full plasmid sequence. Other information may also be critical to the maintenance and use... with us, it will be easy to find all of the information needed for the process. Always sequence verify... Once the physical sample and its associated information are at Addgene, we are ready to sequence verify...always be derived from a single colony to ensure uniformity of the culture. Sequencing directly from the ...concentration, and not all providers are equipped to perform Sanger sequencing from glycerol stocks, so make...
  3. A Look at Addgene's QC Process

    Type
    Blog Post
    ...confirmed or theoretical. No matter the level of information that is provided, each deposit goes through the...without the use of a reference sequence) using a bioinformatics pipeline developed at Addgene. The assembled...assembled plasmid sequence is then compared to the information provided by the depositor. If a depositor provides... will compare the NGS results to the plasmid information, other plasmids in the deposit, NCBI sequence... results and deposited sequences and plasmid information.  For each plasmid deposited at Addgene, QC scientists...scientist  The backbone elements based on the information provided and vector type  Any tags, selectable...sequence and assemble using the Illumina MiSeq platform, such as GC-rich regions and highly repetitive...
  4. Management for Scientists: Seeking Feedback

    Type
    Blog Post
    ...feedback in multiple formats      Ask for input and opinions in meetings, via email, at formal communications... hand and eagerness to get, as well as give, information to make improvements. Members connect directly... this means encouraging a culture of maximum information flow so everyone knows what is going on and can...break, go exploring outside the team, and bring information back. No team has all the answers – reinventing...frequently One of the most important paths of information flow is the one that brings feedback back to ...from at least some employees. Watch out for "information allies" – these are employees in your group that...communications events or at informal gatherings, like at lunch. Many experts recommend using anonymous surveys with...
  5. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    ...pooled libraries have allowed scientists to easily perform genome-wide screens to effectively and efficiently...sgRNAs per gene. These libraries provide more information while using less resources and are particularly...that improved sgRNA activity and thus library performance. The Root and Doench lab’s optimized genome-wide...CRISPRi, and CRISPRa libraries have been shown to outperform other popular CRISPR libraries (see below). Let...colon cancer) cells and assessed the libraries performance via the depletion of a gold standard set of genes...developed sgRNA-level metrics to assess library performance in viability screens. Based on these metrics ...sgRNAs, Brunello even with only a single sgRNA outperformed another CRISPR library with 6 sgRNAS, highlighting...
  6. 27 Hot Plasmids from 2016

    Type
    Blog Post
    ...repository that can be used to perform screens in human cells. General information regarding how to use a CRISPR...assembly cloning platform called GMAP (Gibson assembly-based modular assembly platform). GMAP is based ...-wide Screening Using CRISPR/Cas9”. Detailed information regarding the Wu Lab library can be found in ...orphan GPCRs demonstrating the utility of this platform for drug discovery. Researchers can use plasmids...stop codon) and closed (including a stop codon) formats. The collection is compatible with both standard...Gateway cloning and the FNLCR Combinatorial Cloning Platform (CCP); the latter of which greatly enhances the.... PubMed PMID: 26165496 GMAP - A new assembly platform for generating both simple and complex DNA constructs...
  7. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    ...containing full information about the suggested gRNAs to use, including all information provided in the...phenotypic readout, similar mapping could be rapidly performed by targeting all potential components of a signaling...available through Addgene. This means you could perform a screen with one library from Addgene, and then.... Thus, it is always a good idea to keep a bioinformatician close if you need help putting your list together... in vitro, but there is enormous potential in performing in vivo screens, studying genes affecting cellular...several algorithms. Please read the “Detailed Information” text linked to each reference library before...adapters. Output_UserInputParams: Contains all the information that you have input in the web interface, making...
  8. Viral Production at Addgene

    Type
    Blog Post
    ...protocols and performing rigorous quality control (QC). The specific QC experiments performed varies for ...of Pennsylvania Vector Core. Transfections are performed using the transfer plasmid, a plasmid encoding...and stored at -80 °C. Titer Titering is either performed by Addgene or by the University of Pennsylvania...Pennsylvania Vector Core. In general, titering is performed by the facility that produced the viral vector lot....Pennsylvania Vector Core is (as of April 2016) also performed by ddPCR.  Quality Control Addgene ensures high.... To learn which specific QC experiments were performed on your lot, please contact us. Full sequencing...the Viral Genome Next-generation sequencing is performed on viral genomes isolated from the final AAV preparation...
  9. Transferable Skills Guide: Career Planning Resources

    Type
    Blog Post
    ...found that many researchers feel that they lack formal training in a variety of transferable skills. At...many graduate and post-doctoral programs lack any formal or mandatory professional development training....you should have a business card; it’s a bit more informal, and a lot easier to hand out than a CV or resume...the connection you made at the job fair when you formally apply for the position. This post on Business ...call, make sure to get that person’s contact information and again, make a personal connection! Even if...are, and who they know all in one place! This information can be critical to a focused and effective job...probably have a lot of relevant experience and information to offer. However, if you hope to have a career...
  10. QC Sequencing Technologies at Addgene

    Type
    Blog Post
    ...The QC team stays informed of emerging technologies in sequencing and bioinformatic analysis. At Addgene...-to-sequence plasmids, other sequencing and bioinformatic technologies are used.  Improvements to sequencing...sequencing technologies and bioinformatic analysis are occurring every year. At Addgene, we want to maintain...puzzle, the QC team compares it to the plasmid information or depositor-provided sequences to confirm the...the correct plasmid components. For more information on this process, see our blog post on NGS plasmid...cassettes of the same gene multiple times.  Bioinformatics at Addgene After a run on our Illumina MiSeq...workflow converts the raw sequencing data to FASTQ format, cleans and normalizes reads using the BBTools ...
  11. Summer SciComm Series: A PhD in Science Communication

    Type
    Blog Post
    ...accepted as a grad student. I chose to focus on misinformation about sexual and reproductive health, as the...health issues creates conditions under which misinformation can flourish. I’ve never forgot about all the...perceive and evaluate peer-reviewed sources of information if those sources affirm or challenge their beliefs...term for a range of neat little tricks our minds perform to avoid cognitive dissonance (Kunda, 1990). More...conscious or unconsciously) pick apart sources of information they don’t like, looking for reasons to dismiss...scientific research is funded by the public and performed by researchers who received their educations from...schools and universities. However, much of the information gained from that research remains inaccessible...
  12. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    ...is, an antibody shown to perform well in one set of conditions may not perform as well in other conditions...assumed (Ayoubi et al., 2023). Additionally, their performance depends on the specific protocol used and the...For example, we have found that some antibodies perform well in a PFA-saponin fixation and permeabilization...population (Figure 1), further optimization can be performed to both maximize the separation and reduce any... is possible to design experiments where the performance of the antibody can be assessed through its ability...advantage of antibody validation efforts and information provided by external organizations like the Human...blood leukocytes. The file shared also contains information about the labeling pattern of several cell lines...
  13. Educational Planarian Tools for Teaching Developmental Biology Techniques

    Type
    Blog Post
    ...the students performing these experiments have a good baseline for comparison. Performing WISH using these...are too few resources to teach students how to perform these experiments in the beginning. In most classrooms...observation and dissections. Students don’t usually perform more modern techniques used in genetics or molecular...addition, the Sánchez lab has made it easier to perform advanced developmental biology experiments in planarians...both WISH and RNAi experiments, as well as how to perform worm amputations. They also created an online companion...RNA interference (RNAi) is a powerful tool for performing targeted knockdowns of genes of interest and ...mixing with the liver paste, these E. coli are transformed with the appropriate plasmid and dsRNA expression...
  14. Plasmid Preps: Different Purity, Different Quantities, Different Uses

    Type
    Blog Post
    ...grade DNA Figure 1: Transformation introduces transformation grade plasmids into a bacterial cell...cell. Transformation grade DNA  Transformation is the process of inserting exogenous DNA in a microorganism...a plasmid preparation in 3 different ways: Transformation grade DNA Cloning grade DNA Transfection grade...plasmid DNA that is necessary for bacterial transformation of chemically and electrocompetent cells is...without commercially available kits and DNA for transformation doesn’t need to be as pure as for other uses...blog posts Learn about the differences between transformation, transduction, conjugation, and transfection...
  15. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    ... by polling and informal communications we made a decision to try out a Bioinformatics/HTS a journal club...popular, including those based on Twitter. At my former academic department, we had two recurring journal...teams had various levels of experience with bioinformatics and HTS, we all had much to learn. And, many...supplemental data, software repositories, or other information needed by someone to critically discuss the paper...Discussing next-generation sequencing at the Addgene bioinformatics journal club! What happens during journal...diving deep into the individual data points. All formats should be an open forum where people feel welcome...These questions should be tailored to the group and format but should almost universally include the questions...
  16. Plasmids 101: Colony PCR

    Type
    Blog Post
    ...Molecular Cloning Technique Learn to Perform a Bacterial Transformation Deposit Your Positive Clones with...discusses some of the key things to consider when performing colony PCR.   Designing colony PCR primers ...downside: this type of primer does not provide information about the orientation of the insert. Orientation-specific...Orientation-specific primers: If you need information about insert orientation, then you might consider designing...each insert Backbone-Specific Provides information about the size of the insert and if it's in the...primers are plasmid dependent Doesn't provide information about the orientation of the insert Orientation-Specific...control. A good positive control is bacteria transformed with the same backbone plasmid. If this control...
  17. Viral Vectors 101: Preparing Pooled Libraries

    Type
    Blog Post
    ... the pooled library is transformed into E. coli for amplification. Transformed E. coli are allowed to ...used to determine functional titer with a colony formation titering assay or similar protocol. After functional...library. This is similar to amplifying a plasmid: transform E. coli with the pooled library DNA, allow the...red.    Unlike a standard single plasmid transformation, though, a pooled library has hundreds to millions...diversity of the library sample, and any other information or scripts provided by the depositing lab for... be skipped or whether selecting colonies and performing Sanger sequencing will suffice…and the answer...mostlibrary requests specifically to allow scientists to perform functional titering and optimize transduction efficiency...
  18. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    ... line to perform downstream characterization of, isolating 2 or 3 distinct clones to perform key experiments...CRISPR-Cas system localizes to unintended sites and performs its programmed function there, this is an off-...associated with an elevated mutation burden. The CRISPR platform must be optimized to reduce off-targets and patient...Hopefully you can understand that depending on your platform, off-target effects should impact your experimental...would confound your experimental results and 2) perform targeted off-target measurements at those sites... to quantify off-target effects entirely is to perform whole genome sequencing. While this may be unnecessary... The con to these approaches is that NHEJ must perform the repair to allow for detection, not Homologous...
  19. Antibodies 101: Antibody Engineering and Directed Evolution

    Type
    Blog Post
    ...IPI) provides information on their large-scale recombinant antibody production platform. IPI is a leading...2018). Yeast surface display platform for rapid discovery of conformationally selective nanobodies. Nature... for. When you complete each cycle, your best-performing mutant is usually the starting point for the ...increase an antibody’s binding specificity, you can perform binding assays against the target antigen to identify...temperature, can be adjusted to find the best-performing mutant antibody in those conditions. If you think... antigen-antibody interactions in a plate-based format, making it suitable for comparing relative affinities...selection and mutagenesis to refine antibody performance. If you are interested in learning more about...
  20. A Guide to Designing a Scientific Poster: Content, Layout, and More

    Type
    Blog Post
    ... understand that presenting your work in poster format differs in many ways from writing a manuscript....to include are a references section, contact information, and potentially a photograph of yourself. A ...where you can insert your references and contact information, and it is generally acceptable for the font ...accomplish this by employing a neat and organized format.  Columns. You can choose from either a two, three...than horizontally. Instead of displaying your information as columns, you may choose to display it as rows...barcode is included that links readers to more information if they desire it. Shapes. In this type of poster...poster, written and graphical information are inserted into larger circles or ovals, that are arranged...
Showing: 401 - 420 of 963 results