Skip to main content
Addgene
Showing: 1 - 20 of 64 results
  1. Viral Vectors 101: Chemogenetics

    Type
    Blog Post
    Published
    July 11, 2023, 1:15 p.m.
    ... overview of the chemogenetics system. Why use chemogenetics Because chemogenetic receptors are activated...about chemogenetics in our chemogenetics guide Find viral preps for your research Find chemogenetics plasmids...especially neuronal firing. What is chemogenetics? Chemogenetics relies on genetically introducing engineered...longer-lasting effects. Building your chemogenetic system To set up a chemogenetic system, you’ll need to choose...most common target for chemogenetic manipulation are neurons where chemogenetic receptors can be used ...circuits without disrupting normal brain function. Chemogenetics has become a popular tool in the field as it...activated by otherwise inert drugs. Once activated, chemogenetic receptors hijack cell signaling pathways and...
  2. Chemogenetics vs. Optogenetics: Which Method Should I Choose?

    Type
    Blog Post
    Published
    June 11, 2020, 1:34 p.m.
    ...faster.  Chemogenetics does not offer the same level of control over timing. Because chemogenetics relies...Chemogentic and optogenetic technologies have pushed the boundaries in neuroscience by granting targeted...limitations.  The four main factors in which chemogenetics and optogenetics differ are: Timing Targeted...Figure 1: A schematic showing the differences in chemogenetics and optogenetics in a mouse experiment. Viral...activation depends on small molecule activation (chemogenetics) or light (optogenetics).   Timing Optogenetics... Targeted manipulation Both optogenetic and chemogenetic tools can have their expression targeted to ...targeting down to the limits of light delivery. Chemogenetic approaches excel at broad tissue or system-wide...
  3. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

    Type
    Blog Post
    Published
    May 11, 2021, 1:15 p.m.
    ...University School of Medicine. Optogenetics and chemogenetics are powerful tools to modulate the activity ...neurons and other brain cells. Since the opsins or chemogenetic receptors used in these techniques cannot be...essential to identify the expression of the opsin or chemogenetic receptor. However, in some cases the fluorescent...of the fluorescent protein with the opsin or chemogenetic receptor, through an IRES or 2A sequence. In...same subcellular compartment as the opsin or chemogenetic receptor. This may not be an important limitation...Browse Fluorescent 101 blog posts Read about chemogenetics vs. optogenetics Find more about the many types...References on Addgene.org Check out Addgene's Chemogenetics Guide Find fluorescent proteins at Addgene ...
  4. GPCRs: How Do They Work and How Do We Study Them?

    Type
    Blog Post
    Published
    Feb. 11, 2021, 2:15 p.m.
    ...are ideal candidates for use in chemogenetics. To create chemogenetics receptors, GPCRs were first mutated...quick guide to chemogenetics Resources on Addgene.org Check out Addgene's chemogenetics guide Find chemogenetics...receptor and the β2 adrenoceptor. GPCRs in chemogenetics  While there’s still a lot to learn about GPCR...researchers in the meantime have developed GPCRs for chemogenetic studies to probe the relationship between neurons...neurons and specific behaviors. Chemogenetics uses genetically engineered receptors to interact with small...to elicit a response in a certain cell type. Chemogenetics is similar to optogenetics but instead of light...clozapine-N-oxide (CNO). DREADDs are ideal for chemogenetics as they are relatively insensitive to their ...
  5. RNA Extraction Without A Kit

    Type
    Blog Post
    Published
    March 24, 2020, 1:15 p.m.
    ...which they homogenized spleens in a guanidinium thiocyanate solution and spun down the homogenate to remove...remove the insoluble material. Then, the homogenate was loaded onto cesium-chloride gradients and ultracentrifuged...thiocyanate-phenol-chloroform. In this method, samples are still homogenized and lysed in a guanidinium thiocyanate solution...sodium acetate, and chloroform are added to the homogenate and shaken. After a quick centrifugation (not...RNA requires keeping your samples cold until homogenization and cell lysis. This can be challenging depending... stabilize RNA during tissue collection and homogenization. The most widely known of these products is...acid-guanidinium-phenol solution that combines the homogenization solution and phenol addition of the original...
  6. New and Upcoming Viral Vectors - June 2019

    Type
    Blog Post
    Published
    June 18, 2019, 1:15 p.m.
    ...pAAV-hsyn-flex-Voltron-ST DREADDs / Chemogenetics AAV We have also expanded our inventory of chemogenetic AAV for activating...jGCaMP7c for calcium detection PSAM4 GlyR for chemogenetic inhibition Flp expression for intersectional...FDA-approved drugs. See our inventory of DREADDs / Chemogenetics AAVs New DREADDs Plasmid Serotype Name ...AAV5 pOTTC1596 - pAAV SYN1 HA-hM3D(Gq) New chemogenetics AAV Plasmid Serotype Name 119741  AAV5 ...-IRES-Flpo 55637  AAV1  pAAV-EF1a-Flpo Chemogenetics Plasmid Serotype Name 119472  AAV5  AV ...
  7. A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells

    Type
    Blog Post
    Published
    May 7, 2020, 1:15 p.m.
    ...region of gamma hemoglobin (HGB1/2) leads to continuous expression of fetal hemoglobin even in adult patients...edited the fetal hemoglobin promoter and caused persistent expression of fetal hemoglobin to a greater level...back to the patients. For example, defects in hemoglobin (𝛽-globin), which cause sickle cell disease ...can be mitigated with the expression of fetal hemoglobin. Previous studies have shown that one base change...
  8. New Viral Vectors - Winter 2025

    Type
    Blog Post
    Published
    Jan. 28, 2025, noon
    ...AAV1 Chemogenetics Scott Sternson New viral prep pAAV-CaMKIIa-hM3D(Gq)-mCherry AAV1 Chemogenetics Bryan...mCherry AAV1 Chemogenetics Bryan Roth New serotype pAAV-hSyn-hM3D(Gq)-mCherry AAV1 Chemogenetics Bryan Roth... serotype pAAV-hSyn-hM4D(Gi)-mCherry AAV1 Chemogenetics Bryan Roth New serotype pAAV-EF1α-F-FLEX-mNaChBac-T2A-tdTomato...
  9. Viral Vectors 101: The AAV Retrograde Serotype

    Type
    Blog Post
    Published
    April 27, 2023, 1:15 p.m.
    ...neural interrogation like optogenetic tools, chemogenetic tools, and biosensors . Thus, you can map what...evaluating how this serotype works in your system. Chemogenetic vectors  Expression of retrograde serotype vectors...using this serotype to conduct experiments with chemogenetic vectors, this property must be taken into account...account since activation with chemogenetic specific ligands activates both neurons at the injection site...neurons and then inject a recombinase-dependent chemogenetic vector directly into the region where the cell...
  10. Important Considerations When Using AAVs

    Type
    Blog Post
    Published
    June 13, 2017, 2:30 p.m.
    ...receptors (i.e. chemogenetics vs. optogenetics) I’m particularly interested in using chemogenetic and optogenetic...University of Manitoba. Our lab has been utilizing chemogenetics (Designer Receptors Exclusively Activated By...have relied heavily upon AAV vectors to deliver chemogenetic/optogenetic constructs into our cells of interest... has compared and contrasted optogenetic and chemogenetic receptors delivered by AAV within the same cell...
  11. Antibodies 101: ChIP

    Type
    Blog Post
    Published
    March 10, 2022, 3:25 p.m.
    ..., though tissue samples do require an extra homogenization step. For this blog, we're going to focus on... working with a tissue sample, you’ll need to homogenize your sample before moving on to the next step... tissue sample up and then processing with a homogenizer, but bone or especially fibrous tissues may need...be an opportunity to decrease crosslinking. (Homogenization for a tissue sample can also need significant...
  12. New and Upcoming Viral Vectors - May 2020

    Type
    Blog Post
    Published
    May 28, 2020, 1:15 p.m.
    ...mCherry-Fishell-3 Gordon Fishell   Chemogenetics Chemogenetics offers noninvasive methods for manipulating...and serotype you’d like to be notified about. Chemogenetics Plasmid Serotype Name 44362 AAV1 pAAV-hSyn-DIO-hM4D...
  13. CRISPR in the Clinic

    Type
    Blog Post
    Published
    Nov. 2, 2023, 1:15 p.m.
    ...involved turning on fetal hemoglobin to compensate for defects in the adult hemoglobin produced (Zarghamian... beta thalassemia (TBT), both of which affect hemoglobin. Most of the targeted treatment strategies for...
  14. Antibodies 101: The Four ELISAs and When to Use Them

    Type
    Blog Post
    Published
    July 25, 2024, 1:15 p.m.
    ...concentration of antigen in the sample. A variety of chromogenic, chemifluorescent, and chemiluminescent substrates...Labs with limited equipment often opt for the chromogenic substrates since they can be read on a standard... methods that require specialized equipment. Chromogenic methods are not as sensitive, however, so those...
  15. Using Addgene's New Viral Service for Your Research

    Type
    Blog Post
    Published
    Nov. 17, 2016, 3:30 p.m.
    ... and adeno associated virus (AAV, primarily chemogenetics tools for now but with optogenetic tools coming...viral services with these tools. A variety of chemogenetic tools from Bryan Roth’s lab are already available...
  16. Antibodies 101: Conjugation

    Type
    Blog Post
    Published
    March 26, 2024, 1:15 p.m.
    ...and therefore your antibody) either through a chromogenic or chemiluminescent reaction. Chemiluminescence...well to assays like western blots and ELISAs. Chromogenic reactions produce a color change, so they are...
  17. Corralling and Cornering the Goldilocks Antibody

    Type
    Blog Post
    Published
    Aug. 9, 2022, 1:15 p.m.
    ...recombinant forms (rAbs). mAbs and rAbs have higher homogeneity than polyclonal antibodies because of their immunoglobin...that can be produced in large “copies.” This homogeneity circumvents the batch-to-batch variability found...
Showing: 1 - 20 of 64 results