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  1. Polymerase Chain Reaction Overview and Applications

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    Blog Post
    ...the end product of PCR temperature cycling. The final PCR product is often visualized on a diagnostic ... dNTPs and other reagents to run low during the final cycles which would slow or stop PCR amplification...statistics to determine the concentration of the original template DNA in the sample.  Addgene currently...
  2. Transferable Skills Guide: Managing a Team

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    Blog Post
    ...don’t get done if there is not a clear deadline. Finally check-in regularly, make yourself available, and...that one on one discussion can be confidential. Finally, provide timely feedback. We often associate feedback...manner. If someone’s performance or behavior is inadequate, you need to address it as soon as possible for...
  3. Your Lentiviral Plasmid FAQs Answered

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    Blog Post
    ...isoforms of these proteins, as well as the viral long terminal repeats (LTRs) are different. As a result, lentiviral...modified the 5’ LTR of the transfer plasmid to eliminate the need for the HIV Tat protein and consequently...initial infection. SIN is shorthand for self-inactivating, which is achieved by deleting a large portion...
  4. Plasmids 101: Choosing an Antibiotic Resistance Gene

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    Blog Post
    ...for some applications, the benefit it offers is marginal. Fortunately, amp can easily be replaced with ...NPTII, facilitates phosphorylation of kan, which inactivates it. The NPTII gene confers resistance to several.../1475-2859-11-56 Trastoy, M. O., Defais, M., & Larminat, F. (2005). Resistance to the antibiotic Zeocin...
  5. Introducing Addgene's New Search - Find Plasmids More Easily For Your Research!

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    Blog Post
    ...labs and institutions. For example, search for “Melina Fan” and you’ll be able to go directly to a page...In this example we’re going to be looking for recombinant monoclonal antibody plasmids from the James Trimmer... ‘Vector Types’ I selected ‘Lentiviral’ which eliminates most of the plasmids designed for other uses....
  6. Prime Editing: Adding Precision and Flexibility to CRISPR Editing

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    Blog Post
    ...DNA strand. The edited DNA strand replaces the original DNA strand, creating a heteroduplex containing...into one strand, there’s a mismatch between the original sequence on one strand and the edited sequence...editing in a genome-wide manner, identify any inadvertent effects the prime editors may have on the cells...
  7. SciComm: Taking Science to Elementary and Middle Schools

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    Blog Post
    ...scientist. When our elementary school needed a new coordinator for the annual Math & Science Night, I took the...It’s through the PTA that I recently started coordinating the annual Math & Science Night, a chance for...contacting our school district’s science curriculum coordinator with minimal luck, but eventually the 8th grade...
  8. Negative Can Be Positive: Open AAV Data with Addgene

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    Blog Post
    ...T. R. (2015). Stability and compatibility of recombinant adeno-associated virus under conditions commonly...Methods Matter: Standard Production Platforms for Recombinant AAV Produce Chemically and Functionally Distinct...Identification of factors that contribute to recombinant AAV2 particle aggregation and methods to prevent...
  9. Tips for arabidopsis transformation

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    Blog Post
    ...are binary gateway vectors and can be used for promoter swapping and generating N and C terminally tagged...4. Nakagawa, T. et al. (2007) ‘Improved Gateway Binary Vectors: High-Performance Vectors for Creation ...
  10. Plasmids 101: Colony PCR

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    Blog Post
    ...template control PCR reaction for detecting contamination is also a good idea.    Analyzing PCR product...positive clones (+) compared to negative clones. Finally, orientation-specific primers (3) give the same...Resources Promega Overview for Screening for Recombinants New England Biolabs Overview of Colony PCR ...
  11. CRISPR Antimicrobials

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    Blog Post
    ...virulent or antibiotic resistant bacteria, and inappropriate antibiotic usage selects for resistant bacteria...including Chipotle and Panera Bread have pledged to eliminate the use of antibiotics by their suppliers, and... DSB occurs on a plasmid, the plasmid will be eliminated from the bacterium, which may also induce cell...
  12. Minigenomes - a Safe Way to Study Dangerous Viruses Like the Ebola Virus

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    Blog Post
    ...signal sequence (gene start) and a transcription termination/polyadenylation signal sequence (gene end). A...encoded in separate (and thus smaller) plasmids. Finally, having four separate plasmids allows researchers...it reaches the gene end signal, where it will terminate transcription and polyadenylate the mRNA. These...
  13. Tips for CRISPR Gene Editing in Mice

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    Blog Post
    ... with RNAs encoding Cas9 into the oocyte. This original method was developed as the use of CRISPR/Cas9... RNA and therefore there has less chance of contamination with RNase leading to degradation that can set...pups. Taking a toe, a finger, a tail tip, or a combination of these will allow you to determine which pup...
  14. Tips for Using FRET in Your Experiments

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    Blog Post
    ...Aqua Cyan Bacterial Expresses Aquamarine with N-terminal His tag pAquaN1 Cyan Mammalian Expresses mammalian...pCyPet-His Cyan Bacterial Expresses CyPet with C-terminal His tag SCFP3A Cyan Mammalian Express a gene...pYPet-His Yellow Bacterial Expresses YPet with C-terminal His tag SYFP2 Yellow Mammalian Express a gene...
  15. Viral Vectors 101: Preparing Pooled Libraries

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    Blog Post
    ...Addgene, you’ll usually receive an aliquot from the original library constructed by the depositing lab. (For... library should be very similar to that of the original library. Like amplification, this step also depends...concentration.  Screening time Phew! You are now (finally!) ready to use your transduced cells to perform...
  16. New Tools Enable CRISPRa for Neuroscience Applications

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    Blog Post
    ...-dead variant of Cas9 (dCas9) and engineered combinations of transcriptional activators to induce gene...its expression. Constitutive or inducible Cre recombinases can be introduced by AAV or by mating with Cre-expressing...neuron-specific promoters, including calmodulin-dependent kinase II alpha (aCaMKII; excitatory neurons) and Synapsin...
  17. Bioinformatics at Addgene

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    Blog Post
    ... full plasmid sequencing at our facility using Illumina MiSeq Next Generation Sequencing (NGS) technology...sequences each week. Our internal software was originally designed to help us work in large formats, such...continuous updates. The generous donation of a Illumina MiSeq sequencer enabled us to perform the necessary...
  18. Supporting Reproducibility with a Connected ELN

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    Blog Post
    ...relating to reproducing the original research can be documented -- in the original context in which it was...import Word documents into RSpace, maintaining the original formatting. In this way data is moved from a static...
Showing: 581 - 600 of 911 results