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  1. Getting the Most from Your Lentiviral Transduction

    Type
    Blog Post
    ...protein attaches to cell surface receptors, other important binding events take place during the course of...viral envelop and the receptors on the target cell surface. The possible interactions and hence possible targets...
  2. Plasmids 101: Biotinylation

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    Blog Post
    ...Immunosorbent Assay) Southern/Northern blotting Cell surface labelling Attaching polypeptides to a substrate...non-selectively label DNA and RNA. Photobiotin acetate consists of a biotin molecule attached to a photoreactive...activated patterning of dye-labeled molecules on surfaces.” Journal of the American Chemical Society 125.27...
  3. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

    Type
    Blog Post
    ...target site, while Cas12a requires a PAM (Protospacer Adjacent Motif) for target cleavage. This test can...assay. This reaction also contains SSB, strand displacement DNA polymerase, recombinase, and the ssDNA-FQ...
  4. Targeting HIV-1 with CRISPR: Shock and Kill or Cut it Out?

    Type
    Blog Post
    ...reservoir, researchers have previously used histone deacetylase (HDAC) inhibitors to increase transcription of... for an “escape” virus to propagate and infect adjacent cells. It will be important to determine if CRISPR...application can benefit many others and accelerate the pace of research. We at Addgene hope to see the problem...
  5. Viral Vectors 101: AAV Variables That Matter

    Type
    Blog Post
    ... Modification. Pharmaceutics, 13(5), 750. https://doi.org/10.3390/pharmaceutics13050750 Murlidharan, G...GABA neuron, for instance, may not transduce the adjacent norepinephrine neuron at all. There may be more...
  6. Antibodies 101: Multiplex Immunofluorescence

    Type
    Blog Post
    ...you want to know if they co-localize at the same place in the cell? Or you know that the presence of several...your microscope. Abcam's sample protocol is a good place to get started.  One important consideration when...the offending red-green image, go to Image>Color>Replace Red with Magenta. Or you can use Color>Split Channels...
  7. Hot Plasmids: Spring 2025

    Type
    Blog Post
    ...needed to replicate inside a host cell but with space to insert your genetic cargo of choice. After hearing...GAG), and are (typically) tethered to the cell surface by a GPI-anchor. Image courtesy of IPI.   ...(LAMP5) — as well as cholinergic (choline acetyltransferase, ChAT) neurons. The authors characterized ...
  8. Recombinase-based State Machines Enable Order-dependent Logic in vivo

    Type
    Blog Post
    ...PBAD), and the A118 gene downstream of the diacetylphloroglucinol (DAPG)-inducible promoter (PPhlF).  Output...we used to drive recombinase expression may be replaced by sensors that correspond to the desired inputs...are composed. Fear not – the state machine design space is highly degenerate and often times there are multiple...
  9. Generating Mouse Models Using CRISPR/Cas9

    Type
    Blog Post
    ...the run, it got “dirty”, with multiple sequence traces overlapping each other! When the count was done...nucleotide change, insertion of a reporter gene, or replacement of the murine sequence with a human gene. Advantages...comes to larger scale genome editing, such as replacement of a mouse gene with its human ortholog (greater...
  10. Plasmids 101: Restriction Cloning

    Type
    Blog Post
    ...restriction enzymes that allow your insert to be placed into the backbone in the proper orientation. For... restriction sites EcoRI, XhoI, and HindIII. To place your gene in the proper orientation downstream of... important to have nice crisp bands and to have space to cut out the bands. Because of this we recommend...
  11. Building Global Connections with the International Mentorship Program USA-EUROPE

    Type
    Blog Post
    ...of the world, professional internationalization faces several obstacles; for instance there are few resources...career are common problems that many others have faced yet, still, this challenge did not hinder them from...evaluation of the pilot program IMP 2014/2015, took place on July 27th, 2015 at a dedicated international ...
  12. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    ...packaging plasmid caused the Psi sequence to be placed on the packaging plasmid forming a vector that ... Alternatively, your gene and the marker can be placed under the control of two different promoters. Both... Tet-off system a Tet-response element (TRE) is placed upstream of the promoter in your transfer vector...
  13. Lambda Red: A Homologous Recombination-based Technique for Genetic Engineering

    Type
    Blog Post
    ...Overview of using Lambda Red recombineering system to replace a gene of interest with an antibiotic resistance...as non-selectable DNA fragments, such as gene replacements and tags.  The typical frequency of recombinants....e. make changes to the third base pair of the adjacent 4-5 codons that alter the nucleotide sequence ...
  14. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    ...teamwork was what drew me to the school in the first place. The famous discoveries and experiments I’d been...at Addgene, an unofficial title that I happily embrace (and admittedly, I may have started that nickname...sometimes even necessary, to build a team in the first place? Let’s think about some of the advantages of team-based...
  15. A Guide to Getting Started in Undergrad Research

    Type
    Blog Post
    ...that’s where you’re at too, it’s a perfectly great place to begin. Here’s my advice: Reflect on your personal... next four years. But college, and science, are places for learning and growth! As you learn more about....org/10.1126/science.aba8039 Cordova FA (2016) Embrace uncertainty. Science 351:994–994 . https://doi....
  16. With an Eye Towards the Future, We Look Back at the March for Science

    Type
    Blog Post
    ...government, evidence to inform policies, a protected place to work, funding for science, and numerous other...every political persuasion) must be humble in the face of evidence. Stephanie Hays is moving from engineering...Harvard University to studying an evolutionary arms race at University of California, Berkeley. She is a ...
  17. Optogenetics Guide

    Type
    Guide
    ...better tissue penetrance, which may allow you to place the optic fiber outside of the brain, rendering ... activated by the light is controlled via the placement of the optic fiber. Using viral vectors for opsin... the toxin's local concentration near the cell surface, and enabling the ion channel to function. TULIPs...
  18. Viral Vectors 101: Systemic Capsids

    Type
    Blog Post
    ...ultrasound (FUS), intracorporeal (IC), intracerebroventricular (ICV), intramuscular (IM), intrathecal ...many of the same restrictions, like limited cargo space (~4.7 kb) for your genetic payload — there are a...enhancers, and switches all take up precious cargo space in AAV vectors. Dual expression systems, which use..., 2019). LY6A is functionally expressed on the surface of brain endothelial cells in C57BL/6J mice, but...
Showing: 321 - 340 of 720 results