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Addgene
Showing: 41 - 60 of 648 results
  1. Addgene: The First Twenty Years

    Type
    Blog Post
    ...years to reach our first major repository milestone — 10,000 plasmids deposited and available — and nearly...service would allow people to add a gene to a repository others could request from — Addgene!  Addgene...meant we could grow accessibility alongside our repository.  “I’m sure you hear it all the time, but Addgene...nearly seven before we had 1,000 depositing scientists. Ensuring that people knew how to access Addgene, and...were making it possible for scientists to both deposit and request plasmids, was a major focus of our ...conferences. And when CRISPR arrived in 2012, our repository was rapidly able to support sharing of CRISPR...Agreement process, which was a major barrier for depositors and requestors alike. We transformed this process...
  2. Antibodies 101: The Four ELISAs and When to Use Them

    Type
    Blog Post
    ...conjugated with a reporter or tag that can then be detected.  Typically, the reporter is an enzyme such...dish and incubate it with a reporter conjugated primary antibody. The reporter reacts with a provided substrate...simplicity we will discuss the more common enzyme-based reporter methods. For enzymatic signal detection, users... sandwich and competitive. In a direct ELISA a reporter enzyme conjugated antibody binds to antigen coated...antibody first binds to the antigen and then a reporter enzyme conjugated secondary antibody binds to ...detection antibody can be directly conjugated with a reporter enzyme or a conjugated secondary antibody can ...).  The sample (purple) is preincubated with a reporter enzyme labeled antibody and then added to the ...
  3. Addgene's Website Update

    Type
    Blog Post
    ...two options: “Search Repository” and “Deposit Materials”. The “Search Repository” function is our same...easy-to-use depositing guide, with links to our most helpful depositing articles. If you’re depositing data,...paper. If you’re ready to start a deposit, simply click on “Deposit Materials” and the search bar will...Data Hub” link in the Deposit bar. Note that if you’re not logged in, the “Deposit Materials” bar will ...log in or create an account.  Figure 2: The new deposit materials bar New menu Most common activities can...information about Addgene, our mission, links to our deposit, request, and educational resources page, and previews...
  4. 2023 and 2024: Reflections and Looking Ahead

    Type
    Blog Post
    ... countries, into our repository, while expanding global access to our repository through our distributor...plasmids, this represents the largest single deposit in our repository and was a three–year project that touched...libraries, created from 14 deposits, that became available through our repository in 2023.  In June, we announced...developed by our depositors, used by our requestors, and supported by our repository. You can enjoy these...166,247 plasmids. We welcomed 18,899 plasmids, deposited from 1,106 labs in 504 organizations from 37 different... launch our Antibody Data Hub, an open-access repository for antibody validation data. We’ll continue ...expanding international access to the Addgene repository, partially through work with our distributors...
  5. Hot Plasmids September 2018 - Optogenetics, RNA Localization, Fluorescent Protein, and Base-editing Tools

    Type
    Blog Post
    ...editing tools, the Reuben Harris lab has deposited a reporter plasmid that allows for rapid fluorescence-based...ACE) in real-time. The reporter constitutively expresses eGFP to indicate reporter abundance, and mCherry...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These articles...articles provide brief summaries of recent plasmid deposits and we hope they'll make it easier for you to ...you'd ever like to write about a recent plasmid deposit please sign up here.   Listen this episode of Hot...and N177F mutations). Its excitation maximum is reported as 603 nm, while the emission maximum is 675 nm... ACE system: A versatile in vivo fluorescent reporter for rapid quantification of base-editing and Cas9...
  6. The MTA at Addgene

    Type
    Blog Post
    ...keep up with the number of requests and deposits in our repository. From 2004 to 2023, we facilitated 784,795...When you deposit a plasmid with Addgene, your organization’s tech transfer office is sent a deposit agreement...If you’ve deposited or requested plasmids from Addgene, then you’ve been involved in the material transfer...MTAs per year.  The MTA Process at Addgene As a repository, Addgene doesn’t actually own the majority of...party (signatory) to the MTAs for plasmids in our repository. Instead, we facilitate the signing of MTAs by...Provider and Recipient (in Addgene parlance, the depositor and requestor) organizations. Over the last twenty...agreement. The One-Time Plasmid Deposit and Distribution Agreement establishes the terms under which your...
  7. Fluorescent Proteins 101: Luciferase

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    Blog Post
    ...Fluorecent Proteins in Nano Lanterns Reporter gene assays A reporter gene, such as luciferase, usually serves... is also the most commonly used bioluminescent reporter. This beetle emits a yellow-green light with a...several studies utilized luciferase as a genetic reporter in plant and mammalian cells. Luciferase assays...available to choose from) is now a common feature in reporter plasmids.  Learn How Luciferase Can Be Used In...transcription within cells, where detection of the reporter protein or its enzymatic activity is measured....expression can be determined by detection of the reporter in a specific assay, which ideally would have .... Production of photons by this bioluminescent reporter occurs slower than fluorescent-based methods, ...
  8. The Many Reasons for Irreproducible Research- and a Vaccine to Eradicate It

    Type
    Blog Post
    ... registered reports, the gold standard for testing hypotheses Finally, Registered Reports combine all ...Reproducibility Project: Cancer Biology, where reported methods may not include how many tests were conducted...attention on the results instead of the methods. Unreported flexibility and questionable research practices...analysis code, and other materials. The use of reporting guidelines can also help remind us to include ...creating a time-stamped research plan in a public repository before conducting the experiment (note: registrations...important times to measure that growth rate, you report the results of all four of those tests and not ...fifth time has unpredictably high rates, should be reported as a new discovery that deserves confirmation ...
  9. The Addgene Antibody Data Hub

    Type
    Blog Post
    ...Antibody Data Hub. Data reports  Each antibody submission is used to create a data report, which contains experimental...that information in the report as well.    Figure 3: An antibody data report, showing the results of ...methods section for the data report shown in Figure 3.   At the end of the report, you’ll find a results section... the data report shown in Figure 3. The antibody is rated "Pass". Curating the data reports Just like... Addgene antibody collection can look at user-deposited data detailing how an antibody performed in an... page of the Addgene Data Hub.   Antibody data reports can be searched and sorted by gene/target, name...information is then formatted and published as a report with a DOI for citation. If you’re considering ...
  10. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    ...invert the reporter and GeneR fragment. Then the second recombination event would excise the reporter from ...Spatio-temporal expression of optogenetic reporters: Since most optogenetic reporters are delivered using AAV injection...transduced reporter gene. Generating a FLEx switch to control expression of an optogenetic reporter would ...Cre-dependent reporter expression, the potential for background expression of the reporter will be greatly...shown in Figure 2, the cassette should contain a reporter DNA sequence (such as GFP) in the sense orientation...the two pairs of target sites. By flanking the reporter with one loxP site and one lox511 site in the ...would ensure that the reporter remains silent until a cell or tissue-specific Cre is provided. Since the FLEx...
  11. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    ...mutagenesis libraries or to insert heterologous genes, reporters, or other markers into a target genome. They did...screening New systems have been developed and deposited with Addgene which allow scientists to use CRISPR-Cas...Rep 2014 Jun 27;4:5469. MitoTimer plasmids to report mitochondrial turnover Mitochondrial health...Gottlieb’s lab has used an inducible MitoTimer reporter using a Tet-on system (pTRE-Tight-MitoTimer) to... to show its usefulness in cell culture to report changes in mitochondrial turnover and transport. pMitoTimer... Yan’s lab, which is constitutively expressed, reports on the balance of biogenesis and mitochondrial ...channelrhodopsins. CnChR1, nicknamed Chrimson, is the first reported yellow-peaked channelrhodopsin with a spectral...
  12. The Golden Stopwatch Award: Recognizing Facilitators of Research

    Type
    Blog Post
    ...being requested or deposited. But, with our respective Master Reception and Master Deposit Agreements, your...future requests/deposits. This reduces the processing time of request MTAs and deposit agreements to basically...material requests and less than one week for material deposits. We were excited to deliver the very first ones... guarantee certain rights and protections for depositor and requestor alike. That’s why Addgene works ...works closely with TTOs to help protect our depositors’ intellectual property, and to help requesting institutions...Before Addgene can begin distributing a material, a deposit agreement must be put in place. And subsequently...about the Golden Stopwatch! Any organization that deposits with and/or requests materials from Addgene can...
  13. 15 Hot Plasmids from 2017

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    Blog Post
    ...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These brief...posts for every great plasmid that comes into the repository, but be sure to let us know if you'd like to ...studying the nervous system The Cole lab recently deposited the Tol2 Gateway-Compatible Toolobox, which will...phosphatase-positive assay) as well as stabilization (Nanog-GFP reporter activation and silencing of factor-linked mCherry...are available at Addgene. Kim, et al. Stem Cell Reports. 2015. PubMed PMID: 25772473 Targeting and manipulating...enhancer elements and combined it with a variety of reporters (i.e. eGFP) and effectors (i.e. DREADDs). The ...imaging and in protein fusions. The Gadella lab has deposited all mScarlet constructs with Addgene. Bindels...
  14. Plasmids 101: Gene, enhancer, and promoter trapping

    Type
    Blog Post
    ...fundamentally the reporter construct monitors the expression of a nearby gene. The reporter gene serves as... screens to introduce reporters throughout an organism’s genome. These reporters have historically been...stimulate the expression of the reporter. The system is made up of a reporter gene flanked by a minimal promoter...promoter – all rely on the random integration of a reporter construct in close proximity to an endogenous ...example, if green fluorescent protein (GFP) was the reporter gene and green cells were observed in the kidneys... for with an uncharacterized gene. The actual reporter construct can be something phenotypic (such as...promoter. The system is composed of a promoter-less reporter which needs to integrate within an exon of a gene...
  15. Viral Vectors 101: Systemic Capsids

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    Blog Post
    ... Many of the systemic capsids in our repository are deposited by the Gradinaru lab. You can visit our...before moving on to deposits from other labs. AAVs not otherwise attributed were deposited by the Gradinaru...Look it up in Addgene’s Data Hub and the CLOVER repository of published systemic AAVs to find commonly used...coverage in rodent CNS Many of these capsids were deposited by the Gradinaru lab. For simplicity, in each ...AAV-PHP.B was the first systemic capsid developed and deposited by the Gradinaru lab (Deverman et al., 2016). ... the more efficient AAV-PHP.eB, developed and deposited by the same lab. AAV-PHP.eB is the most commonly...commonly requested systemic capsid in the Addgene repository. Like its parent AAV-PHP-B, it can be produced...
  16. Increasing Your Work's Visibility with Addgene: Citation, Search, and Collections

    Type
    Blog Post
    ... upon you, our depositors, giving us as much information as possible during the deposit process. Special...amazing plasmid technologies contributed by our depositors, Addgene strives to make it easier for you to...plasmid" section Anytime you use a plasmid from the repository, we request that you cite it using both its Addgene...increases the visibility of both you and the original depositor. Our citations feature makes it so that, when ...you to browse through the many plasmids in the repository, our scientists have curated a number of special...attention to the great variety of plasmids in the repository. And last, but certainly not least, we often ...post about a plasmid or set of plasmids you’ve deposited with us. Don't forget to get yourself out there...
  17. Save Time with Transient Plant Leaf Transformations

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    Blog Post
    ... transformation. Choose good reporter genes There are many great reporter genes available and which one...the T-DNA region with our gene of interest or a reporter gene so that the transformation and gene expression...different treatments on transformation success. Some reporter gene examples are below. The GUS gene (β-glucuronidase...histochemical GUS-staining is a very useful visual reporter (Figure 2). The GUS enzyme cleaves a substrate...transformation success. Luciferases are great quantitative reporters and use a substrate to produce bioluminescence...half-lives then GUS and are therefore good temporal reporters to measure promoter activity, for example. Useful...Agrobacterium. This is especially problematic with reporter genes as you might observe expression from Agrobacterium...
  18. The Challenges of Cell Culture

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    Blog Post
    ...quality cell culture. Biorepositories around the world ensure that the cell lines deposited with them and used...validation carried out by the commercial repository. Repositories generally ensure cell line identity and...invariably much older than those available from biorepositories leading to genotypic and phenotypic artefacts...been known about since 1966 when Stanley Gartler reported that most of the 18 cell lines he had studied ...The oldest, largest, and most diverse of these repositories is the American Type Culture Collection aka ... between materials available from commercial repositories and the same cell line from a colleague?”. The...cells lines. Even if you get your cells from a repository like the ATCC, there are times when it is important...
  19. 10 Great Guest Posts We're Thankful For

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    Blog Post
    ...It’s nearing the end of #DepositorWeek at Addgene and we’d like to show our gratitude on the blog by ...highlighting some of the great posts written by Addgene depositors. Below you’ll find brief summaries of several...several excellent guest posts from our depositors. Interested in writing your own post for the Addgene Blog...Lab at MIT developed plasmid based systems that report the order in which specific chemical inputs are...recombinase-based state machines could potentially be used to report upon and/or engineer “temporally ordered biochemical...derived from Zika virus and, upon binding, produce reporter proteins. These toehold switches can be used to...viral replication and transcription as well as reporter genes. To learn how you can use minigenomes in...
  20. 27 Hot Plasmids from 2016

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    Blog Post
    ...constructed and deposited an unpublished set of Zika gene plasmids to Addgene’s repository. The genes, from...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These brief...posts for every great plasmid that comes into the repository, but be sure to let us know if you'd like to ...growing number of CRISPR libraries from Addgene’s repository that can be used to perform screens in human ...-ome using a quick, affordable, and ubiquitous reporter assay. In their recent publication, Kroeze et ...murine CRISPR pooled libraries, but thanks to a deposit from the laboratory of Dr. Ji-Long Liu at Oxford...to use GMAP for your experiments, think about depositing your new plasmids with Addgene to help expand...
Showing: 41 - 60 of 648 results