Skip to main content
Addgene

Enter a sequence to perform a BLAST-based search of Addgene plasmid sequence databases.

In Category

We narrowed to 749 results for: Tro;

Showing: 301 - 330 of 749 results

  1. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

    Type
    Blog Post
    Published
    May 2, 2019, 12:41 p.m.
    ...development and evolution of histone genes in Strongylocentrotus purpuratus, the spiny purple sea urchin. ...that they form including genetic mechanisms that control who a female wants to mate with and if she decides...Lab (@EvoEmbryo) September 24, 2018   Xenopus tropicalis (Gary Gorbsky) This is not a new experimental... pan-arthropod genetic manipulation. The ReMOT control system (Receptor-Mediated Ovary Transduction of...

  2. pCXLE toolkit: Efficient episomal plasmid-based method to reprogram peripheral blood cells to iPSCs

    Type
    Blog Post
    Published
    Dec. 14, 2017, 2:08 p.m.
    ...factors. The episomal vectors are introduced into cells by electroporation. hiPSC colonies are obtained by...to perform cell therapy and to model diseases in vitro. Find stem cell plasmids at Addgene Many sources...Fibroblasts need to be cultured and expanded in vitro for several passages to produce an adequate number... by 10 days after electroporation, most of which are integration-free, karyotypically normal and are able...

  3. AAV Titers: Where Do They Come From And What Do They Mean?

    Type
    Blog Post
    Published
    Nov. 15, 2017, 3 p.m.
    ...DNA dot blot...Transduction assay...SDS-PAGE...Electron microscopy… Any guesses? That's right... ways...genome-containing viral capsids is typically quantified by electron microscopy of a viral vector solution. Since this... this technique is intensive and requires an electron microscope, it is not routinely performed on all...genome-containing (Figure 1).    Figure 1: Electron micrograph of an Addgene AAV viral vector preparation...Considerations When Using AAVs Addgene's AAV Quality Control Methods Check Out Our Viral Vector Featured Topic...

  4. Overcoming the AAV Size Limitation for CRISPR Delivery

    Type
    Blog Post
    Published
    Sept. 16, 2020, 1 p.m.
    ...editing has quickly become a popular system for in vitro and germline genome editing, but in vivo gene editing...injury markers were not increased compared to a control AAV-GFP. Not only did the AAV-SaCas9-sgRNA constructs... mediates protein trans-splicing, similar to an intron in pre-mRNA splicing. In 2016, Fine et al developed... L, Heidenreich M, Banerjee A, Habib N, Li Y, Trombetta J, Sur M, Zhang F (2014) In vivo interrogation...Toolbox Read about CRISPR enzyme Cpf1 Read our Introduction to AAV Resources on Addgene.org Check out ...

  5. CRISPR 101: Homology Directed Repair

    Type
    Blog Post
    Published
    Jan. 26, 2023, 2:15 p.m.
    ...Christina Mork, Jul 27, 2020; updated by Susanna Stroik January 24, 2023. DNA damage drives genome instability...direct ligation of sticky or blunt ends and often introduces small insertions and deletions along the way....the original DNA sequence at the DSB, or it can introduce specific mutations into the damaged DNA if these...repairing your target DNA until a mutation is introduced disrupting one or both of these sequences. To...Easi-CRISPR (Quadros et al., 2017). Easi-CRISPR in vitro transcribes RNA encoding your repair template, then...

  6. Antibodies 101: Single Chain Fragment Variables (scFvs)

    Type
    Blog Post
    Published
    June 3, 2021, 1:15 p.m.
    ...for with in vitro display methods such as phage display (Bradbury et al., 2011). In vitro selection avoids...expressed as scFvs and screened with in vitro assays to select for strong binders. Then the sequences for the...2011) Beyond natural antibodies: the power of in vitro display technologies. Nat Biotechnol 29:245–254 ...

  7. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ...which refers to mEGFP. This variant was made by introducing two mutations (F64L, S65T) in the original jellyfish...fluorescent proteins can be accurately determined in vitro by measuring the fluorescence intensity of purified...Peptide-tags for site-specific protein labelling in vitro and in vivo." Molecular BioSystems 12.6 (2016): ... "Blue fluorescent amino acid for biological spectroscopy and microscopy." Proceedings of the National...Additional Resources on the Addgene Blog Read our Introduction to GFP Read our Fluorescent Proteins Blog Posts...

  8. Five Popular Model Organisms

    Type
    Blog Post
    Published
    April 11, 2019, 12:39 p.m.
    ...easily control the level and spatiotemporal expression of a gene of interest. This type of control over ... (Zuber et al., 2009). By injecting mice with retroviral vectors that harbored different mutations found... modular vectors that can be used to optimally control gene expression in specific cells of the fly (Pfeiffer...using HOTcre, a method that uses heat induction to control the temporal expression of different transgenes...

  9. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    Published
    April 9, 2019, 1:13 p.m.
    ...beta-barrel structure. Although the beta barrel has no strong affinity for other proteins, it may still block...There are several ways to measure stickiness. In vitro, ultracentrifugation or gel filtration is the most...Avoiding protein over-expression artifacts The introduction of DNA that encodes a fusion protein adds protein...knock-out of the corresponding protein, that is strong evidence that the fusion behaves well. But this...fusion proteins: random insertion of GFP with an in vitro transposition reaction." BMC neuroscience 3.1 (2002...

  10. Finding Your Perfect Job After University

    Type
    Blog Post
    Published
    Jan. 12, 2016, 3:30 p.m.
    ...least 3 months experience working in a developing tropical country. This is why I set up a placement working...very hard to speak with individuals who had very strong beliefs in traditional medicine, especially when...very new, and everything was more structured and controlled. I worked from Standard Operating Procedures ... reliant on programming skills which are not my strong point. Working in industry: virology On completing...because it is an English speaking country with a strong economy and plenty of jobs in science at world ...

  11. Top Requested Plasmid of 2017 - pMD2.G

    Type
    Blog Post
    Published
    Jan. 10, 2018, 4:13 p.m.
    ...lentivirus envelope plasmid pMD2.G from Didier Trono’s lab! Lentivirus envelope vector pMD2.G This plasmid...expresses the VSV-G envelope protein under the control of the powerful mammalian CMV promoter. Envelope...protocols and information, be sure to check out the Trono Lab website. If you have plasmids you’d like to ... Guide to All Things Lentivirus 5 Tips for Troubleshooting Viral Transductions Getting the Most from Your...

  12. AAV Packaged on Request is Here!

    Type
    Blog Post
    Published
    Jan. 10, 2025, 1:01 p.m.
    ...offer serotypes AAV1, AAV2, AVV5, AAV8, or AAV Retrograde (AAVrg), and volumes of 1 mL, 2.5 mL, or 5 mL...necessary MTA, then start production and quality control.  Our packaged on request AAV service uses the ...the same trusted production and quality control processes as our in-stock service: ddPCR, purity testing...blog post on viral vector production and quality control, our AAV Packaged on Request webpage, or our announcement...

  13. New Viral Vectors - Summer 2024

    Type
    Blog Post
    Published
    July 9, 2024, 1:15 p.m.
    ... AAV9 Controls Jensen New serotype pAAV-CAG-2xNLS-tdTomato-WPRE-hGHpolyA AAV9, PHP.eB Controls Feng ...from the Gradinaru lab. This is useful for both in vitro and in vivo work with many cell types, as CAG is...serotypes pAAV-hSyn-GRAB_OTmut AAV9 Biosensors (Control) Li New viral service pAAV-hSyn-GRAB_ACh3.0 AAV9...

  14. Performing In Vivo CRISPR Screens Using the FITS Approach

    Type
    Blog Post
    Published
    May 2, 2024, 1:15 p.m.
    ...FITS In vitro CRISPR screens in immune cells have identified many putative regulators of immunity. However...However, in vitro screens cannot faithfully model the complex spatial, cellular, metabolic, and cytokine...modified cells; and (5) is compatible with the introduction of unique molecular identifiers, which can improve...includes pLX_305_Ovalbumin, a plasmid that enables introduction of the model antigen, Ovalbumin, into cell lines...

  15. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    Published
    Nov. 28, 2017, 2 p.m.
    ...m an introvert!” is not an excuse. Every psych test I’ve ever taken has declared me an introvert, and ...Scientist who coordinates all kit creation and quality control efforts with depositors; Gizela, the lab member...deposits into the repository, performing quality control, and providing technical customer service. Team...easier. Trust Ultimately, your team could have a strong sense of purpose, an excellent leader, and perfectly...

  16. Plasmid Preps: Different Purity, Different Quantities, Different Uses

    Type
    Blog Post
    Published
    June 16, 2020, 1:25 p.m.
    ...Transfection grade DNA Figure 1: Transformation introduces transformation grade plasmids into a bacterial...bacterial transformation of chemically and electrocompetent cells is minimal (picogram range). It can ...2.2, and provide an indication of purity versus chaotropic agents as guanidine thiocyanate and guanidine...Transfection grade DNA Figure 3: Need to introduce plasmids into mammalian cells? Use transfection...

  17. Stem Cell Models for Disease & Open Science: Interview with Darrell Kotton

    Type
    Blog Post
    Published
    July 7, 2017, 1:32 p.m.
    ... other projects, using stem cells to develop in vitro models for lung disease. Darrell strives to promote...the interview with Darrell Kotton Chapter 1: Introduction to Darrell Kotton and the Boston University ...reliable projects. Chapter 9: Using stem cells as in-vitro models of disease. How Darrell is using stem cells...helping us stick to our core mission. Chapter 13: Outro - remember to step back and ask, "Why did I start...

  18. Our Most Popular Blog Posts from 2019

    Type
    Blog Post
    Published
    Dec. 31, 2019, 2:26 p.m.
    ...positive selection (ex: antibiotic selection and auxotrophy) and negative selection (ex: toxin-antitoxin ...technique from David Liu’s lab that gives more control and flexibility to CRISPR editing. Using a fusion...transcriptase and a prime editing guide RNA, it can introduce insertions, deletions, and all possible base-to-base... and Transfection by Alyssa Cecchetelli The introduction of nucleic acids into bacteria or eukaryotic...

  19. Editor's Choice, August 2016

    Type
    Blog Post
    Published
    Sept. 2, 2016, 1:32 p.m.
    ...any nascent technology, researchers are having trouble getting NgAgo genome editing up and running in ...get a better idea of how many people are having trouble, to determine if there have been any early successes... users likely need more time to optimize and troubleshoot the system. Site Directed Mutagenesis by PCR... with Enhancers and Epigenomics 5 Tips for Troubleshooting Viral Transductions Single Base Editing with...

  20. Three Tips to Organize Your Lab Notebooks in the New Year

    Type
    Blog Post
    Published
    Jan. 2, 2014, 3:44 p.m.
    ...can easily spot the colors and text. Tip 2: Use electronic to-do lists to access your tasks on the go Never...could easily lend one to another labmate? Though electronic lab notebooks (ELNs) have gained traction with...to borrow most frequently. Copy these into an electronic file sharing tool, such as Google Drive or Dropbox...documents from anywhere, but also allow you to control who can edit the documents and track the revision...

  21. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...Cas9 (dCas9) or a Cas9 nickase (nCas9) to avoid introducing double-strand breaks. The only things base editors..., the team noticed that this editor sometimes introduced C → G edits at certain positions within the editing...during cytosine-to-uracil editing, and instead introduced its opposite, a uracil DNA N-glycosylase (UNG...end joining (NHEJ). To mitigate this, the team introduced the enzyme HMCES, either as a fusion construct...ever. References and Resources Glossary We introduced a lot of terminology in this post! Here’s a quick...

  22. Some Like it Hot: Thermostable GeoCas9

    Type
    Blog Post
    Published
    Sept. 14, 2017, 12:40 p.m.
    ... eSpCas9 and SpCas9-HF1. By mining the treasure trove of naturally occurring Cas9 diversity via the Integral... Table 1. Comparing SpCas9 and GeoCas9. *For in vitro Cas9 RNP activity or longevity. GeoCas9 is active...Besides being able to take some heat, GeoCas9 can introduce genomic edits in mammalian cells. Harrington et...GeoCas9’s thermostability could also be used with in vitro molecular bio applications that require high temperature...

  23. Using Ultrasound to Image Bacteria in vivo: Acoustic Reporter Genes

    Type
    Blog Post
    Published
    June 19, 2018, 1:38 p.m.
    ... organs located deep in the body, like the gastrointestinal tract. Require Administration of Substrate...pharmacokinetics and biodistribution therefore introduce additional confounding factors when attempting...reporter genes for in vivo imaging Following in vitro characterization, Bourdeau et al performed a proof-of-concept...coli aided in ultrasound imaging of the mouse gastrointestinal tract. The E. coli strain Nissle 197 (ECN)...

  24. Zebrafish as a Model for Behavior: Swimming into the Optogenetic Spotlight

    Type
    Blog Post
    Published
    July 16, 2019, 12:59 p.m.
    ...it is non-invasive and offers a high degree of control over time and space. Zebrafish have become a popular...are not native to vertebrates and are commonly introduced in zebrafish through the UAS/Gal4 system for ...had previously been a mystery, but through the control offered by the optogenetics toolbox and the versatility..., Filippo Del Bene, and Herwig Baier. "Optical control of zebrafish behavior with halorhodopsin." Proceedings...

  25. Oh, The Places You Can Go: Careers in Science Communication - Curriculum Development

    Type
    Blog Post
    Published
    Nov. 1, 2017, 2:04 p.m.
    ...range from researching an area, to writing an introduction that gives a basic overview of kinematics in... to students, like how to pour a gel [for] electrophoresis or doing a dissection video. I did that in ...traveling with the sales team to meet faculty and introducing the kits to clients who might initially be doubtful...themselves. “You open up the box and there’s a gel electrophoresis tray in there. Or the dissection specimens....

  26. Viral Vectors 101: Parts of the AAV Packaging Plasmid

    Type
    Blog Post
    Published
    Dec. 3, 2020, 2:15 p.m.
    ...serotype-specific differences in tissue and/or cell type tropism. Introducing changes and/or short peptides sequences ...variable loops is one method for changing a capsid’s tropism.  cap also encodes the Assembly-Activating Protein...References: Naso MF, Tomkowicz B, Perry WL III, Strohl WR (2017) Adeno-Associated Virus (AAV) as a Vector...

  27. The Blue Flame Award: Celebrating Addgene's Most Requested Depositors

    Type
    Blog Post
    Published
    Nov. 14, 2016, 3:30 p.m.
    ...          Special Thanks Trophies and engraving services from Hit Trophy Additional Resources on the...positively affect scientific research. As Maria Castro of University of Michigan says, “Addgene has transformed...distributed more than 100 times. We hope these desktop trophies will serve as badges of honor for our powerhouse...

  28. Viral Vectors 101: What is a Virus (and a Viral Vector)?

    Type
    Blog Post
    Published
    Aug. 18, 2023, 4:15 p.m.
    ...translated into proteins, or, in the case of retroviruses, reverse transcribe their gRNA into DNA, which...is. Thankfully, through the use of engineering controls — changes made to the virus that eliminate or ...viral vectors to reproduce only in experimentally controlled conditions, making them far safer to work with...they’re derived from: AAVs, lentivirus, gamma retrovirus, and adenovirus. And now that you know what viral...

  29. Antibodies 101: Epitope Tags

    Type
    Blog Post
    Published
    May 11, 2023, 1:15 p.m.
    ...epitope tags? Epitope tags are short peptides introduced at the N or C terminus of a protein that are ...hundred amino acids, depending on the tag, and are introduced via knock-in at a genomic locus or more commonly...should be used with caution or not at all. The introduction of a tag at the N or C terminus of a protein...  Susanna Stroik...

  30. Hot Plasmids and Viral Preps - September 2021

    Type
    Blog Post
    Published
    Sept. 21, 2021, 1:15 p.m.
    ...group optimized their initial system by using a stronger promoter and different biochemical secondary energy...cell free system allows for a relatively simple, controlled “one-pot” reaction capable of reproducing useful...codons, splice acceptor and donor sites, and introducing premature stop codons.    New from the viral... and 5HT sensors New AAV tools to selectively control parvalbumin interneurons from the Dimidschstein...
Showing: 301 - 330 of 749 results