Skip to main content
Addgene
Showing: 511 - 540 of 824 results
  1. The Future of Research Symposium Boston 2015

    Type
    Blog Post
    Published
    Oct. 20, 2015, 2:30 p.m.
    .../feudal generating too many trainees per PI” “Lack of awareness about how the system operates and functions...issues independently; for example, Harvard’s Therapeutics Graduate Program has a compulsory internship...better data is needed to help shape and inform the overall structure of the biomedical research sector, and...
  2. New Tool for Lineage Tracing: The ClonTracer Library

    Type
    Blog Post
    Published
    Sept. 22, 2015, 2:30 p.m.
    ...abundance and clonal dynamics over time using next generation sequencing (NGS). The library was developed when...such that initial resistant populations can be eradicated up-front quickly. This approach is in contrast... discovery and the development of combination therapies.         References 1. Hyo-eun, C. Bhang, et al...Studying clonal dynamics in response to cancer therapy using high-complexity barcoding." Nature medicine...
  3. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...expression, lentiviral, retroviral, AAV, RNAi, luciferase, cre/lox, yeast expression, worm expression, ...Growth Temp Choose from 30 °C, 37 °C, or room temperature. Growth Strain Please indicate which growth...GenBank files. We encourage submission of QUEEN-generated GenBank files (Mori and Yachie, 2021) but can ...we’ll use the information in the spreadsheet to generate plasmid pages. We’ll send you a deposit confirmation...
  4. 6 Tips for Grant Writing

    Type
    Blog Post
    Published
    Oct. 18, 2016, 2:30 p.m.
    ...back to you, and for you to make the relevant alterations before submitting - handing them your application...during your career; you learn new techniques and interact with new people. If you are looking to move to...non-scientists. Most fellowships are funded by the general public (either through taxes or charitable donations...an IDP Get Tips on Keeping Up With Scientific Literature  ...
  5. Corralling and Cornering the Goldilocks Antibody

    Type
    Blog Post
    Published
    Aug. 9, 2022, 1:15 p.m.
    ...collaborates with these companies to create and provide general availability of their recombinant antibodies. Since...that the primary antibody is very weak or with general non-specific binding. If the sample differs from...align with what the atlases (mentioned above) and literature suggest, providing an expectation and comparison...imaged pattern does NOT align with the atlases/literature and is unrelated to the target protein, we categorize...
  6. Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene

    Type
    Blog Post
    Published
    April 6, 2021, 12:30 p.m.
    ... its analysis can be found here: A Novel Next-Generation Sequencing and Analysis Platform to Assess the...the pool - ex. the gRNA in a CRISPR library. In general, our QC scientists work with the depositing lab...Mueller I, Mitsopoulos A, Fan M (2020) A Novel Next-Generation Sequencing and Analysis Platform to Assess the...Preparations from Viral DNA Extracts. Human Gene Therapy 31:664–678 . https://doi.org/10.1089/hum.2019.277...
  7. Antibodies 101: Stripping and Reprobing Western Blots

    Type
    Blog Post
    Published
    Aug. 1, 2024, 1:15 p.m.
    ...are planning to detect multiple proteins through several rounds of stripping and reprobing, maximize your...chemiluminescent or fluorescent detection, like horseradish peroxidase (HRP) or Alexa Fluor dyes, respectively...solution and agitate for 5–30 minutes at room temperature. The incubation time will depend on your blot...be able to strip and reprobe your western blot several times — some researchers report up to ten cycles...
  8. High Complexity Golden Gate Assembly with NEB’s DAD

    Type
    Blog Post
    Published
    Aug. 1, 2023, 1:15 p.m.
    ...didn’t need to be strictly followed in order to generate high-fidelity reactions. (Need a refresher? The...cycling conditions (see Table 1).   Enzyme Temperature Incubation time/cycling Overhang length ...some help! References Potapov, V., Ong, J. L., Kucera, R. B., Langhorst, B. W., Bilotti, K., Pryor, J...10.1021/acssynbio.1c00525 Pryor, J. M., Potapov, V., Kucera, R. B., Bilotti, K., Cantor, E. J., & Lohman, G...
  9. CRISPR 101: Targeting Non-Coding RNAs with CRISPR/Cas9

    Type
    Blog Post
    Published
    Nov. 14, 2024, 2:15 p.m.
    ... permanently disable, protein-coding genes by generating insertions or deletions in the DNA sequence. ...Knock-in: Introducing tags or stop signals Once Cas9 generates double-strand breaks, a new DNA sequence can be...sequences remain intact (Engreitz et al. 2019). The interactions between ncRNAs and adjacent genes are complex...lncRNAs because they regulate nearby genes and interact with specific chromatin structures or other local...
  10. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ...Synthetic Biology publication, Mary Dunlop’s lab generated a photosensitive Cre, Opto-Cre-Vvd, by splitting...Casɸ-2, and Casɸ-3. This system is notable for several reasons. Casɸ is only ~70kDa, with a molecular ...cultures.  HeLa cells expressed a fusion of keratin with mGold (top) and mVenus (bottom). Cells were... variants. It's also one of the smallest AAV-deliverable ABE.  Find the plasmid here Jesse Zalatan’s...
  11. 5 Tips for Troubleshooting Viral Transductions

    Type
    Blog Post
    Published
    Aug. 11, 2016, 2:23 p.m.
    ...more than once. Fibronectin is another membrane-interacting protein that can be used to enhance transduction...aren’t working, you can check if virus is being generated by your transfected packaging cells. This check...and transduction. Once you’ve harvested, it’s generally a good idea to titer your virus. Getting an accurate...of primary human T lymphocytes for adoptive immunotherapy." Acute Leukemias VIII. Springer Berlin Heidelberg...
  12. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...involve any changes to DNA sequence (Epigenetics literally means ‘on top of the genome’). Epigenetic modifications...prevents the cellular machinery from physically interacting with the genes in the compacted region and results...can influence the transcription of genes by RNA polymerase II, or by the addition of methyl- groups to the...restriction enzyme digestion, DNA adenine methyltransferase identification, and bisulfite sequencing. ...
  13. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
    Published
    Oct. 11, 2018, 12:30 p.m.
    ...bloggers Becky Kucera, M.Sc. and Eric Cantor, Ph.D. from New England Biolabs. Becky Kucera is a Principal...This post was contributed by guest bloggers Becky Kucera, M.Sc. and Eric Cantor, Ph.D. from New England ... more than 10 modules often rely on two-step hierarchical approaches using different Type IIS restriction...
  14. Quick Guide to Working with Drosophila Part 1: Getting Started with Flies

    Type
    Blog Post
    Published
    July 13, 2017, 2:30 p.m.
    ... 25°C. At low temperatures like 18°C, flies take longer to develop. At high temperatures like 30°C, flies...and Y chromosomes are miniscule, so researchers generally do not manipulate them. Essentially, the X, second...the mutation won’t drift away with each passing generation.  Another feature of balancer chromosomes is ...
  15. 3D Printing Meets CRISPR Cas9

    Type
    Blog Post
    Published
    Oct. 17, 2017, 12:55 p.m.
    ...that allowed researchers to create stunning, interactive images of their proteins. Since the 1980’s, journal...obscures the flexible nature of all proteins in general, and the amazing conformational flexibility that...strand. In addition, this model also displays the several Lys/Ala mutations reported by Ian Slaymaker and...classroom or trying to explain your science to the general public, visit the Center for BioMolecular Modeling...
  16. PRIDICT: Predicting Efficiencies of Prime Editing Guide RNAs

    Type
    Blog Post
    Published
    June 25, 2024, 1:15 p.m.
    ...efficiencies with pridict.it. This approach leverages the strengths of PRIDICT/PRIDICT2.0 while accounting...into play. Nicolas Mathis received his PhD from Gerald Schwank's lab at the University of Zurich (Switzerland...DeepSpCas9, a deep learning–based model with high generalization performance. Science Advances, 5(11), eaax9249..., A., Kuzmin, I., Raudvere, U., Peterson, H., Liberante, F. G., & Parts, L. (2023). Prediction of prime...
  17. Antibodies 101: Conventional vs Spectral Flow Cytometry

    Type
    Blog Post
    Published
    Aug. 3, 2023, 1:15 p.m.
    ...the beads or cells. Overall, spectral flow cytometry has the ability to generate incredible amounts of...which spectral flow cytometry requires special considerations. Conventional flow cytometry During conventional...student at Mayo Clinic studying host-microbe interactions in early life.    Resources More resources ...
  18. Anatomy of a Plasmid Page at Addgene

    Type
    Blog Post
    Published
    Feb. 4, 2016, 3:30 p.m.
    ...trail at the top of any plasmid page gives the hierarchy of web pages the plasmid page is nested in. You...it? Your best bet is the Plasmid Map: We auto-generate a plasmid map based off of the plasmid sequence...plasmids are sent as bacterial stabs at room temperature. Core of the plasmid page - Core of the plasmid...), antibiotic resistance, and optimal growth temperature are listed, as well as the name of the strain...
  19. Antibodies 101: Producing Recombinant Antibodies

    Type
    Blog Post
    Published
    Aug. 13, 2024, 1:15 p.m.
    ...polyclonal antibodies are readily available from several sources, fewer sources of recombinant antibodies...appropriate buffer, it’s time to quantify it. There are several options to choose from depending on the time, reagents...2018). Aggregation can arise from a shift in temperature, pH, or salt concentration (Amin et. al., 2014... shipped to customers on ice, preventing any temperature shifts. Of course, we are also cautious during...
  20. Plasmids 101: Colony PCR

    Type
    Blog Post
    Published
    May 12, 2016, 2:30 p.m.
    ...set up a standard PCR reaction (primers, dNTPs, polymerase) using the supernatant of lysed bacteria as template...standard PCR reaction: combine template, primers, polymerase, and dNTPs and then incubate with a standard ...heating step of the PCR reaction. A standard Taq polymerase is sufficient. Controls: Controls can make ...them onto the gel. The figure above summarizes generalized expected results for the three primers previously...
  21. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    Published
    Nov. 10, 2016, 3:30 p.m.
    ...multi-drug resistance: definitions vary in the literature, but generally organisms with multi-drug resistance are...abstract, convoluted scientific concept. It is imperative that we all understand what antibiotic resistance...meats. We can focus on creating new antibiotic therapies, and investigate more effective drug targets (...
  22. Overcoming the AAV Size Limitation for CRISPR Delivery

    Type
    Blog Post
    Published
    Sept. 16, 2020, 1 p.m.
    ...multiple gRNAs into separate AAV vectors, increasing overall packaging capacity but necessitating purification...labeling, enrichment on streptavidin and next-generation sequencing). Using this sensitive method, they...that the field has overcome with split AAVs. In general split AAVs break a large transgene in two pieces...  Wang D, Zhang F, Gao G (2020) CRISPR-Based Therapeutic Genome Editing: Strategies and In Vivo Delivery...
  23. Plasmids 101: Plasmid Incompatibility

    Type
    Blog Post
    Published
    March 31, 2020, 1:15 p.m.
    ... are several different versions of the plasmid partitioning system in the bacteria, but generally it consists...coresident plasmid. Asymmetric plasmid loss occurs for several reasons, including one plasmid blocking replication...compatible or not.  Using plasmid incompatibility for therapeutic advantage Although it may seem like plasmid incompatibility...
  24. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    Published
    Oct. 27, 2015, 3 p.m.
    ...quantitative imaging experiments and cell physiology in general. Pitfalls of Fluorescent Protein Fusions Observing...Previously, we have described a number of practical considerations that should be taken into account when deciding...cellular compartments other than the cytoplasm. Generally, FPs evolved in or were engineered for use in ...N-glycosylation consensus sequences in popular FPs. This generated a palette of inert green, cyan, yellow, and blue...
  25. Harnessing Bacterial Toxins for Allelic Exchange

    Type
    Blog Post
    Published
    Aug. 15, 2019, 12:30 p.m.
    ...efficient method to generate precise, unmarked mutants, but it frequently requires considerable optimization ...transformation and plasmid curing steps, and can generate off-target mutations. Modifying bacterial genomes...clinical infectious diseases at the Massachusetts General Hospital where he is now an attending physician...
  26. Antibodies 101: Introduction to Gating in Flow Cytometry

    Type
    Blog Post
    Published
    April 4, 2024, 1:15 p.m.
    ...different size and structural complexity. After several steps of tissue processing prior to running my ...voltage in the cytometer’s software in order to generate signals in a reasonable range. If colleagues in... being considered for the analysis. (C) A more liberal gate allows more cells to be considered for the...some like to make looser ones (Figure 3). A more “liberal” gate in the beginning should not have a great ...
  27. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

    Type
    Blog Post
    Published
    May 18, 2018, 7:32 p.m.
    ...of understanding how the body works, generating new therapeutics, and sometimes formulating new biological...Bio-protocol all work to provide more descriptive and interactive protocols that make it much easier to learn new...Initial positive results and the excitement they generate can, however, bias us. We’ve all heard stories...
  28. Plasmids 101: Restriction Cloning

    Type
    Blog Post
    Published
    Feb. 18, 2016, 3:42 p.m.
    ...binds the plasmid to the new fragment thereby generating a complete, circular plasmid that can be easily...green, insert) are cut with restriction enzymes to generate compatible overhangs that allow them to bind. ...single tube allowing the compatible overhangs generated by restriction digestion to anneal to one another...midiprep or a maxiprep. In these purifications, you generally lyse the bacteria; add chemicals to precipitate...
  29. The Twelve Days of CRISPR

    Type
    Blog Post
    Published
    Dec. 22, 2020, 2:15 p.m.
    ...base editing from the first generation of base editors to the eighth generation (and dual base editors, too...been updating many of these posts over the last several months. Now the #12DaysOfCRISPR is back on Twitter...
  30. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    Published
    Feb. 27, 2024, 2:15 p.m.
    ...process, simply enter your preprint title or a general description of the deposit. Select your desired...millions. Pooled libraries must be verified by next-generation sequencing. Please see the help center article...that can be used under BSL1 conditions were generated in your lab are necessary for use of a plasmid...need information on how to verify any genomic alterations unique to your strain. Please contact us at deposit...
Showing: 511 - 540 of 824 results