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  1. Plasmids 101: Mammalian Vectors

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    Blog Post
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    March 25, 2014, 3:15 p.m.
    ...More: Plasmids 101: Antibiotic Resistance Genes Plasmids 101: Origin of Replication All Plasmids 101 Articles...Although plasmids do not naturally exist in mammals, scientists can still reap the benefits of plasmid-based...their genomes. Unlike plasmids used for expression in yeast and bacteria, plasmids used for stable transfections...Expression Plasmids? Check Out Addgene's Empty Backbone Resource: Choosing Your Perfect Plasmid Backbone...origin of replication (ORI) will not allow for plasmid replication in mammalian cells, for example, and...In this blog post we will discuss how mammalian plasmids differ from their bacterial counterparts, including...transfected cells. Before getting into the mammalian plasmid components, it may be useful to describe the means...
  2. Addgene Depositors Get More Citations

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    Blog Post
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    April 20, 2017, 2:30 p.m.
    ...associated plasmids with Addgene. Since then, Addgene has filled over 6,500 requests for these plasmids. While...without plasmids at Addgene To find out whether scientific articles associated with Addgene plasmid deposits...those containing plasmids that the authors deposited with Addgene and those without plasmids deposited with...2,596 of which had plasmids deposited with Addgene. Articles with Addgene plasmids get more citations ...with plasmids deposited at Addgene – typically about four times as many as papers without plasmids deposited...Papers without Addgene Plasmids in Journal (E) Percent of Papers with Addgene Plasmids in Journal (F) Weight...more interestingly, could we tell if depositing a plasmid with Addgene causes a paper to get cited more? ...
  3. Addgene's Tips for Plasmid Quality Control

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    Blog Post
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    Jan. 14, 2016, 3:30 p.m.
    ...sharing plasmids through Addgene is that we provide an added level of confidence in the plasmids we distribute...ensuring plasmid quality is to stay organized. Here at Addgene, we collect data on every plasmid we distribute...cloned into the plasmid) and any other important features that differentiate this plasmid from its predecessor...sequence analysis, plasmid verification, and using NCBI BLAST. Tips for high-throughput plasmid sequencing If...on the Addgene Website View our Plasmid Reference Pages Get Plasmid Backbone Information from Our Vector...distribute through our quality control processes. Every plasmid we receive is rigorously verified before becoming...take to verify the identity and quality of the plasmids we make available and provide some advice on the...
  4. Viral Vectors 101: Parts of the AAV Transfer Plasmid

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    Blog Post
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    Aug. 11, 2020, 1:15 p.m.
    ...with some plasmids. You just need three plasmids to start making AAV:  the packaging plasmid which contains... transfer plasmid an AAV transfer plasmid. ITR sequences are 145 bases each and AAV plasmids have two ...of an AAV transfer plasmid. Parts shown in green are key elements of an AAV plasmid. Parts shown in grey... elements of an AAV plasmid First let’s talk about the key parts of an AAV plasmid. Inverted terminal ...transfer plasmids have a promoter, but this element isn’t required when the transfer plasmid harbors non-coding...Transfer Plasmid video!   Now you’ve got a basic understanding of some common AAV plasmid elements!...structural and packaging genes, the adenoviral helper plasmid which contains the proteins needed for the virus...
  5. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

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    Blog Post
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    Sept. 4, 2018, 12:53 p.m.
    ...this case, plasmid copy number is the input and gene expression is the output. The input, plasmid copy number...to decouple gene expression and plasmid number. In a suite of plasmids modified from pSC101 with copy ...of all types of plasmids, the stabilized promoters were also tested in different plasmid backbones that...stationary phase, the number of plasmids per cell increases 4-5 fold (for pUC plasmids) or ~2 fold (for p15a, ...RepA is a plasmid replication initiator protein, they could alter copy number of the plasmid by altering...genome or a plasmid. Thus, a stabilized promoter can allow a system to be moved from a plasmid to the genome...special collections page Download the Plasmid 101 eBook See all plasmids deposited by the Voigt lab ...
  6. Your Lentiviral Plasmid FAQs Answered

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    Blog Post
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    April 23, 2014, 1:08 p.m.
    ...four different plasmids into the producer cells (two packaging plasmids, an envelope plasmid, and the lentiviral...generation systems consist of an envelope plasmid and a packaging plasmid encoding HIV proteins gag, pol, rev...generation systems require an envelope plasmid, and two packaging plasmids, one encoding gag and pol and a second...transfer plasmids replication competent? What is SIN? A6: Most (if not all) Addgene transfer plasmids are ... 30% of the transfer plasmid. Many transfer vectors are SIN. Packaging plasmid(s) contain the minimal...Addgene's most popular lentiviral plasmids Overview of Lentiviral Packaging Plasmids Lentiviral Protocols and ...Addgene has an extensive collection of lentiviral plasmids created for a variety of applications including...
  7. Plasmids for Endogenous Gene Tagging in Human Cells

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    Blog Post
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    April 6, 2017, 1:02 p.m.
    ...Designing the donor plasmid Figure 2: Donor plasmid design strategy. A donor plasmid contains 1 kb homology...found within the homology areas of the plasmid to prevent the plasmid from being cut and destroyed by CRISPR... the tag. Created with BioRender.com. Plasmids, plasmids everywhere To find out more about gene edited...expensive for many labs. We’ve created and tested plasmids that use CRISPR/Cas9 to endogenously tag a wide...wide variety of genes with GFP. These plasmids are available through Addgene, and the stem cell lines we...found in the Cell Catalog on our data portal. The plasmids should be functional in many different human cell...constructs below. Read on to find out how these plasmids work and to discover more resources for your genomic...
  8. Spurred by COVID-19, Addgene Bridges Plasmid Sharing Between Academia and Industry

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    Blog Post
    Published
    June 23, 2020, 1:15 p.m.
    ...Ginkgo Bioworks COVID-19 plasmid collection Beyond COVID-19: Addgene’s plasmid collections available ...COVID-19 plasmids to industry scientists in the short term, did you know we have other plasmid collections...organizations have made their plasmids available beyond academia. For example: Plasmids from the Michael J. Fox...and plasmids from several labs at Florida State University became openly available. Find plasmids available... more about the Ginkgo COVID-19 plasmid collection Read about plasmids in the COVID-19 collection ...one critical part was missing when the COVID-19 plasmids first became available: distribution was limited...limited to academic scientists. Expanding plasmid sharing during COVID-19 Realizing this limitation, we ...
  9. Suggest A Plasmid You'd Like to Find at Addgene

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    Blog Post
    Published
    March 16, 2016, 5:30 p.m.
    ... with #suggestaplasmid, the name of the plasmid and a publication where we can find the plasmid. While...Oh! This plasmid would be perfect for my next experiment!” but were unable to find the plasmid at Addgene...here to help with our Suggest a Plasmid Campaign. How to suggest a plasmid The scientists at Addgene work...community, we’re asking you for plasmid suggestions. Can’t find a plasmid you’re looking for in the repository... our "Suggest a Plasmid" form Fill out the form with the name of the specific plasmids you’d like to suggest...work hard to seek out plasmids to add to our collections pages, to comb through the literature for potential...  suggest a plasmid...
  10. Plasmid Preps: Different Purity, Different Quantities, Different Uses

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    Blog Post
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    June 16, 2020, 1:25 p.m.
    ...Not all plasmid preps are the same. Before purifying a plasmid from a bacterial culture, it is important... into a plasmid backbone. Transfection grade DNA Figure 3: Need to introduce plasmids into mammalian... an external plasmid in mammalian cells and it will likely require micrograms of plasmid DNA for each ...utilize your plasmid DNA, so that you can decide what will be the optimal type of plasmid preparation ...Addgene blog Browse blog posts on plasmid cloning Read our Plasmids 101 blog posts Learn about the differences...purity. Based on these premises we can classify a plasmid preparation in 3 different ways: Transformation...Transformation introduces transformation grade plasmids into a bacterial cell. Transformation grade...
  11. Selecting Your Plasmid Purification Kit

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    Blog Post
    Published
    May 27, 2025, 1:15 p.m.
    ...your plasmid; separate plasmid DNA from unwanted cellular “debris”; and then clean-up the plasmid DNA ...debris from the plasmid, and then clean-up the plasmid so that you are left with pure plasmid DNA. Image created... help you choose the plasmid prep kit that is right for you. What type of plasmid prep do you need? As...As we covered in a previous post on plasmid preps, not all plasmid preps are the same. Your downstream...arise during the plasmid purification process. One is the possibility of damaging the plasmid DNA itself, ...carrying over contaminants from the plasmid prep process into the final plasmid eluate. Possible contaminants... 2: Plasmid isolation workflows are similar across kits. Lyse your bacteria to release the plasmid, separate...
  12. Hot Plasmids: Bacillus subtilis Libraries, iPSC Reprogramming, CRISPR Tools, & More!

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    Blog Post
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    Dec. 11, 2017, 2:02 p.m.
    ... this Hot Plasmids episode! Hot plasmids covered in this segment Hot Plasmid 1: B. subtilis knock out ... find additional hot plasmids in our quarterly newsletter or on our hot plasmids webpage. Listen to this...In the fourth episode of our Hot Plasmids podcast series, you'll learn about new libraries for studying...studying B. subtilis biology, plasmids for enhancing iPSC production, and CRISPR tools for plants. You can... Our segment on the B. subtilis libraries. Hot Plasmid 2: Transcription factor fusions modulate iPSC reprogramming... segment on modulating iPSC reprogramming  Hot Plasmid 3: Regulating telomere length with TZAP. Listen...segment on regulating telomere length with TZAP Hot Plasmid 4: CRISPR tools for use in plants.  Listen to the...
  13. Hot Plasmids Podcast Episode 3: Optogenetics Tools, Improved CRISPR Base Editors, & More!

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    Blog Post
    Published
    Oct. 25, 2017, 1 p.m.
    ...additional hot plasmids in our newsletter or on our hot plasmids webpage.   Hot plasmids covered in this...Segmennt of Improved CRISPR Base Editors Hot Plasmid 4: pPSU Plasmids for generating DNA molecular weight markers...In the third episode of our Hot Plasmids podcast series, you'll learn about optogenetics tools for controlling...this segment Hot Plasmid 1: Photocleaveable PhoCl protein for controlling molecular processes with light.... Listen to Our Segement on PhoCl Segment  Hot Plasmid 2: Ouabain selection for increased CRISPR editing...Listen to the Segement on Ouabain Selection  Hot Plasmid 3: CRISPR base editors with enhanced range and ...markers.  Listen to the Segement on the pPSU Plasmids Special thanks to our sound engineer/producer, ...
  14. Improved Plasmid Maps Powered by SnapGene

    Type
    Blog Post
    Published
    June 29, 2017, 1:06 p.m.
    ...SnapGene powered plasmid maps at Addgene  Three factors make our SnapGene powered plasmid maps far easier...easier for you to share plasmid information with colleagues, or explain plasmid features to a lab member... on the main plasmid page under the "Resource Information" section. Analyze your plasmid sequence For ...over from our users: "Please, please improve your plasmid maps!" After thoughtful design, vetting, and tweaking...tweaking, we’re excited to announce that our plasmid and sequence displays are now powered by GSL Biotech's...software and extensive feature library, our updated plasmid and sequence displays are now much easier to interpret...how they’ll make it easier for you to find the plasmids you need. We'll be monitoring and improving the...
  15. Activate Addgene's "Find Plasmids" Badge on Pubmed Abstracts

    Type
    Blog Post
    Published
    May 12, 2017, 12:58 p.m.
    ...Addgene “Find Plasmids” badge in the image below. If an abstract on PubMed has the “Find Plasmids” badge, you...you’ll find new plasmids. Simply click on the badge to be taken directly to the plasmids on Addgene’s site...you should see the “Find Plasmids” box on papers that have deposited plasmids. Now that you know how ...Order Plasmids from Addgene Check Out Our FAQ Pages Browse Plasmids ...thought - Is there an easy way to find published plasmids? Do you spend a lot of time in PubMed searching...you can use PubMed to see which articles contain plasmids deposited at Addgene from the abstract page. Check...article to ensure you understand the features of the plasmids, how they were created, and how to use them in...
  16. Plasmids 101: Restriction Cloning

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    Blog Post
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    Feb. 18, 2016, 3:42 p.m.
    ...covalently binds the plasmid to the new fragment thereby generating a complete, circular plasmid that can be easily...restriction digests for your insert (or donor plasmid) and plasmid backbone. Because you lose some DNA during...insert and 1μg of plasmid backbone. It is also critical that as much of the backbone plasmid as possible be... of the backbone plasmid (see below). You should treat your digested backbone plasmid with a phosphatase...ligations for each plasmid you are trying to create, with varying ratios of recipient plasmid to insert. It...“recipient plasmid : insert ratio” in the ligation reaction. 5. Purify the finished plasmid   Once it...DNA; filter the remaining plasmid DNA through a column that binds the plasmid DNA and lets other materials...
  17. Plasmids 101: NGS Quality Control for Pooled Libraries

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    Blog Post
    Published
    Oct. 26, 2017, 1:59 p.m.
    ...underrepresented plasmids (plasmids that were lost or “dropped out”) and overrepresented plasmids (plasmids that ...In addition to single plasmids, Addgene also distributes pooled plasmid libraries containing hundreds...library contains many plasmids, care must be taken to ensure that all of these plasmids are amplified and ...diversity. If the various plasmids in the library are differently sized, smaller plasmids may be amplified preferentially...hundreds, thousands, or even a million plasmids. These libraries are some of Addgene’s most exciting and versatile...harvested, much like one would prep an individual plasmid. However, lots of library DNA is needed for screening...100 to 1,000 bacterial colonies per individual plasmid in the library. Bacterial growth must also be optimized...
  18. PEI Calculator for Planning AAV Packaging Transfections

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    Blog Post
    Published
    Jan. 23, 2018, 2:04 p.m.
    ...names of the plasmids you plan to use Enter the base pair size of those plasmids Enter plasmid concentration...ratios below: 1 Transfer Plasmid : 1 pHelper: 1 RepCap OR 3 Transfer Plasmid : 5 pHelper: 2 RepCap Select...of each plasmid needed per dish or stack. Calculations are based on using 28 μg of total plasmid (Transfer...per 15 cm dish or 2500 μg of plasmids per CF5 stack. Total ug of each plasmid needed for the whole experiment...packaging typically requires transfecting three plasmids at specific molar ratios. To get these ratios ...transfection calculator for AAV packaging Select the plasmid molar ratio you would like to use for your AAV ...experiment Total volume (μL) of plasmid needed for the whole experiment And here’s the equation the calculator...
  19. London Calling - Addgene’s New Europe Office in London

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    Blog Post
    Published
    June 10, 2014, 3:20 p.m.
    ...Addgene, plasmids, and depositing (all while our US counterparts are still sleeping). Plasmid sharing ...have deposited their plasmids into the Addgene repository. More than 4,500 plasmids have already been deposited...in research, I developed several new plasmids, including: plasmids to study the dimerization of HLA B27... Years of Plasmid Sharing: Interested in more statistics from Addgene's 10 years of plasmid sharing? ...Check out our Top 10 Plasmid Technologies blog post Or look at our "10 Years of Plasmid Sharing" Infographic...emailed. And Addgene has been there to answer your plasmid questions. But until now, you’ve always had to ...Since 2004, Addgene has shipped more than 75,000 plasmids to more than 1,500 different institutions in Europe...
  20. Depositor Week 2020 is Happening Now. Join us!

    Type
    Blog Post
    Published
    Nov. 16, 2020, 2:15 p.m.
    ...While the bulk of these plasmid deposits came in this year, there were some plasmids deposited as early as... We started from 474 plasmid deposits in 2014 which has grown to ~10,000 plasmid deposits per year in ...the scientific community the latest and greatest plasmid tools! Thank you depositors! In fact, this year...quickly. There are over 2,300 COVID-19 related plasmids currently in Addgene’s repository which have been...the GSA’s blog Genes to Genomes about a TMPRSS2 plasmid from Roger Reeve’s lab as an example). Depositor... of the Addgene community. Perhaps you’ll find plasmids and new tools that will speed your science along...and trivia begins! Tuesday: Depositor features (plasmid deposits and blog posts showcasing the work of ...
  21. Hot Plasmids - August 2020

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    Blog Post
    Published
    Aug. 18, 2020, 1:15 p.m.
    ...subset of the new plasmids and viral preps in the repository through our hot plasmids articles. These articles...recent plasmid deposits and we hope they'll make it easier for you to find and use the plasmids you need...They generated plasmids tagged with EB3 to mark the growing tips of microtubuli and plasmids tagged with ...and dCas9-VPR targeting plasmids can be found at Addgene. Check out these plasmids for piggyBac gRNA delivery...highlights from recent CRISPR plasmids. To find all of the CRISPR plasmids available from Addgene, head... Find the plasmids at Addgene The MoClo CRISPR/Cas Toolkit for plants includes 95 plasmids consisting...need. If you'd ever like to write about a recent plasmid deposit please sign up here.  Here's what you'll...
  22. The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data

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    Blog Post
    Published
    July 16, 2020, 1:15 p.m.
    ...subfields.  Plasmid requests correlate with paper publication The dataset includes 11,426 plasmid requests...paper has between 1–32 plasmids and a total of 2–2,590 requests. We received plasmid requests from 56 countries...Spikes in plasmid requests correspond to publications of popular papers. Figure 1: Plasmid requests...number of plasmids ordered for each paper. Rough estimation of COVID-19 effect on plasmid requests ...majority of our plasmid orders come from the U.S. and Europe, we see a corresponding dip in plasmid request activity...of how plasmid orders were affected by the COVID-19 pandemic, we compared the number of plasmid orders...Learn more about plasmid sharing during COVID-19 Resources on Addgene.org Find plasmids from David Liu's...
  23. Plasmids 101: Blue-white Screening

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    Blog Post
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    June 4, 2015, 1:03 p.m.
    ...This post is part of our ongoing Plasmids 101 series. Plasmids 101 will provide you with an overview ...of the Plasmids 101 posts here. Now that we have covered antibiotic selection here at Plasmids 101, we...α-complementation plasmid. This way you can quickly and easily identify colonies that not only have your plasmid (antibiotic...rescued by genes supplied on the transformed plasmid. Such plasmids may contain genes that allow for the use... able to select for colonies that contain your plasmid is a great start when cloning, but how about being...being able to choose those that contain plasmid with an insert? Blue-white selection is a widely used ...far, so good, but how does this help us screen plasmids? Blue-white screening in the lab Scientists discovered...
  24. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

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    Blog Post
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    Dec. 8, 2016, 3:30 p.m.
    ...Addgene Blog Plasmids 101: Common Lab E. coli Strains Plasmids 101: TOPO Cloning Plasmids 101: Golden ...-containing vectors in mind, any plasmid that contains the F plasmid (F’ strains) will also be resistant...... The ccdB gene, located on the F sex factor plasmid of E. coli, is part of a toxin-antitoxin system...encoded by the ccd operon, which is responsible for plasmid maintenance during cell division. ccdB codes for...Cells that lose ccdA through the loss of the F plasmid, succumb to the toxicity of CcdB.   Figure...disrupted allowing cells expressing the recombinant plasmid to propagate. Any cells that contained non-recombinant... of clones that do not contain the recombinant plasmid and therefore makes the cloning process much more...
  25. What's the Best Way to Elute and Store Your Plasmid DNA?

    Type
    Blog Post
    Published
    June 4, 2020, 1:22 p.m.
    ...fragmenting plasmid DNA, PCR product, or chromosome. One of the main causes of degradation during plasmid DNA ... a kit Read our blog posts about plasmid cloning Browse our Plasmids 101 blog posts Resources on Addgene.org...Biology Reference Find protocols on plasmid cloning Find plasmids for your research ...Nowadays, the most common E. coli strains used for plasmid amplification are endA negative, meaning the gene...degradation and which experiments you can use your plasmid.  DNA elution choices: TE, Tris buffer, or water...polymerases. In the situation where you need to use plasmid in TE for any enzymatic reaction, an effective ...choices that companies offer for the elution of plasmid DNA through their kit. The advantage of using a...
  26. A Look Back at One Year of Plasmid Sharing for COVID-19 Research

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    Blog Post
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    July 12, 2021, 1:15 p.m.
    ...received over 13,000 plasmids requests for COVID-19 related plasmids. These plasmids have reached labs in...small collection of plasmids for coronavirus research, including a handful of plasmids that have been in...some highlights of the plasmids shared over the last year and how these plasmids have been used to accelerate...circulating and plasmids containing these mutations have been deposited at Addgene. Plasmids deposited from... labs also deposited plasmids for producing COVID-19 diagnostic enzymes. Plasmids in this toolkit include...These plasmids contain both untagged and tagged versions of SARS-CoV-2 ORFs and include plasmids that ...scientists through plasmid sharing and more. As you’ve read above, some of these plasmids have been in the...
  27. Hot Plasmids - March 2019 - Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins

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    Blog Post
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    March 19, 2019, 1:31 p.m.
    ...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These articles ...recent plasmid deposits and we hope they'll make it easier for you to find and use the plasmids you need... recent plasmid deposit please sign up here.          Listen to this episode of Hot Plasmids! Optogenetic...Grefen and Blatt, 2012). The 2in1 Plasmid Toolkit consists of 4 plasmid toolkits generated with 4 different...deposited the resulting optogenetic plasmid tools which includes plasmids encoding a fusion between cPYP and...targeting and editing experiments. Find the CASANOVA plasmids here! Bubeck F et al., Nature Methods 2018. PubMed...as mice, C.elegans, and Zebrafish. Find Archon1 plasmids at Addgene! Piatkevich KD et al, Nat Chem Biol...
  28. Making CRISPR Plasmids Using Fragmid

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    Blog Post
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    Aug. 29, 2024, 1:15 p.m.
    ...restriction digest, and then plasmid sequencing if you can. To quote Doench, “Whole plasmid sequencing is just ...correctly banded clones for plasmid sequencing and found 98% of the plasmids were perfectly correct. Because... Mammalian Plasmid pRDA_791 (contains only orio and ampR) Drosophilia Plasmid pRDB_051 (for...the assembled plasmid. It shows you each component, with the ID of the component plasmid, component name...the component plasmids on the Addgene website. Step 4: Naming your assembled plasmid and generating...resources from Addgene Plasmids 101: Modular Cloning Addgene's CRISPR Guide Plasmids 101: Golden Gate Cloning...structure takes a lot of the design work out of the plasmid creation process. Each module of Fragmid represents...
  29. Hot Plasmids Podcast Episode 2: New RFPs, AAVs, & More

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    Blog Post
    Published
    Sept. 8, 2017, 7:52 p.m.
    ...hot plasmids in our newsletter or on our hot plasmids webpage. Listen to the entire Hot Plasmids podcast...podcast! Hot plasmids covered in this segment Hot Plasmid 1: The Tol2 Gateway-Compatible Toolbox for quickly...In the second episode of our Hot Plasmids podcast series, you'll learn about new red fluorescent proteins...Segement on the Tol 2 Gateway-Compatible Toolbox  Hot Plasmid 2: AAV Vectors for tageting GABA-ergic interneurons...Listen to Our Segment on these new AAV Vectors Hot Plasmid 3: mCyRFP1 - a new, monomeric, and cyan-excitable... protein. Listen to Our Segment on mCyRFP1 Hot Plasmid 4: mScarlet - a new, bright, and monmeric red fluorescent...Receive Our Newsletter Check Out All of Our Hot Plasmids Articles Browse the Repository  ...
  30. New CRISPR Web Resources and #12DaysofCRISPR Recap

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    Blog Post
    Published
    Dec. 12, 2017, 3:13 p.m.
    ...changes we’ve made: New CRISPR plasmid pages We’ve given our CRISPR Plasmids and Resources a fresh new design...design, sorting the plasmids we have available by category. Each plasmid page now has a helpful graphic...introduce you to the plasmid class covered on that page. To help you find popular plasmids, we’ve also added... new plasmid pages that cover some of the hottest CRISPR tools. Base Edit: Base editing plasmids allow...revolution, Addgene has distributed over 100,000 CRISPR plasmids. But that’s not our only job - we strive to also...up with new developments (and, of course, find plasmids that will be useful to you.) With these goals...mind, we set out to update our web resources and plasmid pages to make them more useful and easy to navigate...
  31. Viral Vectors 101: Viral Vector Elements

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    Blog Post
    Published
    July 25, 2023, 1 p.m.
    ...lentiviral plasmids Addgene's most popular retroviral plasmids Addgene's collection of AAV plasmids Addgene...split across several plasmids (often three), for safety purposes. The primary plasmid with the delivered...often a gene) is called the transfer plasmid while the other plasmids with packaging or replication components...of adenovirus plasmids Resources on the Addgene blog Parts of the AAV packaging plasmid Overview of Lentiviral...For safety and production reasons, multiple plasmids with many components are used to package lab grown...can be intimidating at first to look at so many plasmid maps and protocols! In reality, there are many ...components are called helper plasmids. Below, we’ll breakdown the vector components first by virus and then...
  32. Popular Retroviral Vectors and Their Uses in Scientific Research

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    Blog Post
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    July 24, 2018, 12:51 p.m.
    ...separate envelope and packaging plasmids as well as transfer plasmids. This concept ensures safe handling...gamma-retroviral packaging plasmids are not interchangeable. General envelope plasmids, such as VSV-G, may be...Learn more about CRISPR plasmids for transcriptional inhibition. Retroviral Plasmid Kit Retroviral Barcoding...expressing new shRNA sequences pLKO (Plasmid #10878) This plasmid has been used by The RNAi Consortium... genes and transgene expression across several plasmids. The most commonly used viral vector systems are...popular packaging and gamma-retroviral envelope plasmids here. Lentiviral vectors are very versatile tools...guide. Popular packaging and lentiviral envelope plasmids are listed here. Please note that both lentiviruses...
  33. Addgene’s Newest Way to Speed Your Research: The Cloning Grade DNA Service

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    Blog Post
    Published
    July 28, 2020, 1:15 p.m.
    ... after ordering a plasmid you didn't have to grow the bacteria and prep the plasmid before you begin your...with 210 plasmids from the collection. You can find the full list here. Most of these plasmids are empty...cloning experiment? What if after receiving the plasmid from Addgene you could directly start your digest...you can focus on what you want to do with your plasmid without spending time and resources in preparative...research and discovery.” Here are the details. Plasmids offered as cloning grade DNA As we begin testing...molecular cloning. Plus, we decided to include 10 plasmids that can be directly used in the research on the... the SARS-CoV-2. Nine of the overall plasmid selection will be open to industry scientists. This collection...
  34. Download Science-Themed Zoom Backgrounds from Addgene

    Type
    Blog Post
    Published
    April 22, 2021, 1:15 p.m.
    ...lentiviral plasmids include popular envelope and packaging plasmids as well as transfer plasmids. Download...Otherwise, check out our plasmid and DNA backgrounds. Download the blue plasmid background.     You can... the plasmids that Addgene offers by visiting our collections page. Here, you can browse plasmids by field...your favorite reagent, scientific technique, or plasmid repository at your next meeting.     If you’re...cute mascots!  Blugene has been helping us make Plasmids 101 videos and needed a break so they're hanging...coronavirus collection page, where you can find plasmid tools to accelerate your COVID-19 research.  Download...background.         If you’re predominantly a plasmid user, instead, don’t fret; we have backgrounds ...
  35. Plasmids 101: Yeast Vectors

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    Blog Post
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    Feb. 25, 2014, 7:11 p.m.
    ...types of yeast plasmids are defined below: Yeast Integrating plasmids (YIp): These plasmids lack an ORI...our first few Plasmids 101 posts, we focused mainly on the elements required for plasmid maintenance within...not only the number of plasmids found in each cell, but also whether the plasmid gets integrated into the...integration. Yeast Episomal plasmids (YEp): These are most similar to bacterial plasmids and are considered “...simple gene replacement/mutation. Yeast expression plasmids used in the lab typically contain all the necessary...how the regulation of bacterial ORIs determines plasmid copy number within the bacterial cell. Similarly...included within a yeast vector determine how the plasmid is replicated and maintained within the yeast cell...
  36. Building and Validating Recombinant Antibodies: A Case Study

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    Blog Post
    Published
    April 5, 2022, 1:20 p.m.
    ...important collection.  Creating the Plasmids To begin constructing the plasmids for expression of mAbs, the Trimmer...expression plasmids were DNA sequenced to determine the VH and VL sequence. These plasmids have been deposited...scientific community with the plasmid sequences available from each plasmid webpage. Importantly, the methods...Resources on the Addgene blog:  Plasmid-Based Recombinant Antibodies  Plasmids 101: Secondary Nanobody Toolbox...NABOR are recombinant antibodies expressed from plasmids that have been deposited with Addgene. Here, we... first antibodies distributed by Addgene.  The plasmids used to generate these antibodies were based off... to create an amplicon that  was cloned into a plasmid backbone for expression of the mAb heavy and light...
  37. REPLACR Mutagenesis: Replacing In Vitro Recombination Methods

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    Blog Post
    Published
    Feb. 10, 2016, 3:30 p.m.
    ...recommended for plasmids up to 25 kb, most cloners should be fine, especially using plasmids in the 10-12...Other Plasmid Cloning Techniques like SLIC and Golden Gate Cloning Learn How to Verify Your Plasmid Read...Reference Pages Choose Your Perfect Plasmid Backbone Find Plasmids for Your Research ...made genomic SDM relatively straightforward, but plasmid-based SDM has lagged behind. While commercial kits... REPLACR (Recombineering of Ends of Linearized Plasmids After PCR). Current site directed mutagenesis...mutation, then use those to PCR amplify the template plasmid. The parental, nonmutated DNA is digested with ...of background colonies carrying the unmodified plasmid. For insertions, it’s possible to use the same ...
  38. Viral Vectors 101: Parts of the AAV Packaging Plasmid

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    Blog Post
    Published
    Dec. 3, 2020, 2:15 p.m.
    ... AAV.  Where do you start? Plasmids of course! You just need three plasmids to start making the AAVs you...packaging plasmid which contains the AAV structural and packaging genes, the adenoviral helper plasmid which...packaging plasmid and take a look at each of its parts. Key elements of the AAV packaging plasmid The packaging...packaging plasmid aka the RepCap plasmid encodes two genes: the replication (rep) gene and the capsid (... AAV RepCap plasmid! Check out this blog post to learn more about the AAV transfer plasmid! References... for the virus to replicate,  and the transfer plasmid which contains the viral genome. In today’s blog...lab, rep and cap are expressed from a separate plasmid in trans, freeing up space in the viral genome ...
  39. Celebrating One Million Plasmids Shared!

    Type
    Blog Post
    Published
    Sept. 25, 2018, 2:39 p.m.
    ...a million plasmids would fill? Two weeks ago, Addgene edged passed our one million plasmids shared milestone...ending the day with 1,000,002 plasmids shipped. Reaching one million plasmids shared might have you wondering...how many plasmids leave Addgene headquarters every day. That would be an average of 673 plasmids each day...to packing and shipping. Every single day. 673 plasmids shipped daily may be easy to picture (see the ...celebratory lunch, it’s hard to picture one million plasmids. How much space would one million bacterial stabs...post, we looked at how long it takes to make one plasmid and how much time Addgene has saved researchers...Assuming 5 hours of hands-on time to make each plasmid, we would have saved 5 million hours through reagent...
  40. Ghanaian Researchers to Receive Plasmid Awards from Addgene and Seeding Labs

    Type
    Blog Post
    Published
    June 15, 2016, 1:30 p.m.
    ...construction of new plasmids. Dr. Duedu will also use polymerases produced using plasmids from Addgene to ... has been working with Seeding Labs to provide plasmid grants to researchers in developing countries. ... to announce that we’ve selected our first two plasmid grant awardees: Drs Louis Bengyella and Kwabena...doctors Bengyella and Duedu and how they plan to use plasmids from Addgene to advance their research. Louis ...cellulosic biomass. Dr. Duedu would like to use the plasmids he acquires through Addgene to produce molecular...fluorescent proteins. Dr. Duedu’s plans for these plasmids have a heavy focus on teaching. He hopes to teach...in environmental samples via PCR. We hope these plasmids will help Dr. Duedu inspire new Ghanaian scientists...
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