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Showing: 61 - 77 of 77 results
  1. Addgene: The First Twenty Years

    Type
    Blog Post
    Published
    Dec. 19, 2024, 2:15 p.m.
    ...ready-to-use viral vectors from some of our most popular lentiviral and AAV vectors, as well as developing...2017, we had distributed 1,000 ready-to-use viral vector preps. Today, that number has grown to over 114,600...preps. And in 2025, we’ll be expanding our viral vectors service to include AAV Packaged on Request! “I ...research community once more. Our ready-to-use viral vectors were useful for researchers wanting high quality... plasmid request came on September 8, 2004, for pcDNA-p160MBP, while the first request for a kit came ...
  2. Viral Vectors 101: An Introduction to AAV

    Type
    Blog Post
    Published
    May 30, 2023, 1:15 p.m.
    ...(scAAV) vector. Full-length ssAAV vector genome of both polarities are rescued from the vector plasmid...adeno-associated virus (scAAV) vectors promote efficient transduction independently of DNA synthesis." Gene therapy...Addgene.org Read Our AAV Guide Find AAV Vectors Browse All Viral Vector Resources ...designed so that the single stranded DNA folds back on itself to become dsDNA in the nucleus and is a good option... Primer for Beginners Read Our Lentivirus FAQ Learn about Viral Vector Elements Resources on Addgene....Adeno-associated virus (AAV) is a single stranded, Parvoviridae DNA virus, packaged in a non-enveloped icosahedral capsid...repeats – the sequences that flank the deliverable DNA) are removed, resulting in recombinant AAVs (rAAVs...
  3. Plasmids 101: Using Transposons in the Lab

    Type
    Blog Post
    Published
    July 6, 2021, 1:28 p.m.
    ...called DNA transposons. DNA transposons are commonly used as tools in the lab, so we’ll focus on DNA transposons...Transposon: The transposon is the DNA sequence that moves around. This DNA sequence encodes the proteins ...BioRender.com.   Class II TEs: DNA transposons Class II TEs are also known as DNA transposons, since they do...break, and excises the transposon from the donor DNA. A DNA footprint is left behind. When the transposon-transposase...not leave behind a DNA footprint sequence after excision. piggyBac can mobilize DNA over 100 kB in size...in viral vectors, but easily fit in a TE. Transposons are also less likely than viral vectors to induce...TnsB, TnsC), and 4) the donor DNA or mini-transposon that contains the DNA cargo of interest flanked by...
  4. Viral Vectors 101: Transductions

    Type
    Blog Post
    Published
    April 30, 2024, 1:15 p.m.
    ...Production at Addgene Viral Vectors 101: What is a Virus? Viral Vectors 101: Viral Vector Elements ...or AAV. Then, your desired DNA to be integrated can be cloned into the vector that you have selected. The..., a viral vector is selected to perform the transduction with: either retrovirus, lentivirus, adenovirus...bacterial in nature. All three of these methods involve DNA incorporation into the cell, but the mechanisms vary...produced, and viral particles are packaged, when the vector is expressed. Once the design and construction ... it’s time to make virus! The constructed viral vector containing the cargo of interest is then typically...layers of risk management when working with viral vectors. Typically, one day after transfection into the...
  5. Sequencing Options for CRISPR Genotyping

    Type
    Blog Post
    Published
    Oct. 4, 2016, 2:30 p.m.
    ...CRISPR-Cas9 and TALENs using integrase-defective lentiviral vectors." Nature biotechnology 33.2 (2015): 175-178...the edited strand and wild-type strand of the host DNA. When these strands hybridize, the nuclease can detect...account other elements, including those relating to DNA structure (e.g. epigenetic modification, bulges) ... et al. "High-throughput profiling of off-target DNA cleavage reveals RNA-programmed Cas9 nuclease specificity...Frock, Richard L., et al. "Genome-wide detection of DNA double-stranded breaks induced by engineered nucleases... Crosetto, Nicola, et al. "Nucleotide-resolution DNA double-strand break mapping by next-generation sequencing... for Your Experiments Get Ready-to-Use CRISPR Lentivirus ...
  6. Viral Vectors 101: Viral Applications

    Type
    Blog Post
    Published
    April 13, 2023, 1:15 p.m.
    ...Browse Our Viral Vector Pages Learn About Viral Vector Biosafety Deposit Your Viral Vectors ...delivered in other forms (mRNA, DNA, etc.) to raise immunity. Viral vectors are being explored as the delivery...We offer a variety of viral vectors, viral services and even a Viral Vectors eBook to get you started. ... terrains. They are, in fact, a choice delivery vector from basic science research all the way to clinical...want delivered to your target cells. This delivered DNA/RNA can then be either permanently integrated into... long-term, and even inducibly depending on the vector and virus. Viral CRISPR-Cas9 tools have been...interest, turning expression off permanently. Viral vectors can also be used to express proteins. Viral expression...
  7. Adeno Associated Virus (AAV) for Cell and Gene Therapy

    Type
    Blog Post
    Published
    Nov. 7, 2017, 1:59 p.m.
    ...nucleic acid cargo (DNA or RNA) to target cells has been challenging. A variety of vector delivery technologies... improved specificity. AAV vectors are able to facilitate and enhance DNA repair via homology directed...makes AAV vectors especially amenable to correcting disease-associated mutations. AAV vectors maintain... Check out our Viral Vectors Featured Topic Page Learn about CRISPR-AAV vectors Learn about Addgene AAV...thereby correct the mutations using retroviral vectors. However, many diseases require techniques that...usability in clinical settings. On the other hand, vectors derived from AAV have recently gained popularity...profiles as well as other benefits. What makes AAV vectors great gene delivery tools? There are a variety ...
  8. Important Considerations When Using AAVs

    Type
    Blog Post
    Published
    June 13, 2017, 2:30 p.m.
    ...adeno-associated virus (scAAV) vectors promote efficient transduction independently of DNA synthesis." Gene therapy...-associated viral vectors: packaging capacity and the role of rep proteins in vector purity." Human gene...Cas9 and AAV Viral Vector Elements Additional Resources on Addgene.org Find AAV Vectors for Your Research... AAV vectors without specific facilities (Biosafety Level-1). Other possible tools, lentiviruses for example...Immune Response: Compared to other viral vectors (e.g. Lentivirus, Adenovirus) AAVs cause the least amount...Future? I knew little about adeno-associated Viral Vectors (AAVs) before starting my graduate program at the...in locomotion. We have relied heavily upon AAV vectors to deliver chemogenetic/optogenetic constructs ...
  9. Viral Vectors 101: Virus Safety

    Type
    Blog Post
    Published
    June 22, 2023, 1:15 p.m.
    ... on the Addgene blog Viral Vectors 101: Types of Viruses Viral Vector Elements Tips for Preventing... contact with than GFP. Similarly, if the viral vector carries an shRNA to a gene essential for cellular...cellular function, this would also be a higher risk vector. While it is unlikely that you, or anyone else ...they physically deposit their cargo into the host’s DNA. These viruses also have a propensity to integrate...viruses grown in the lab are gamma retrovirus, lentivirus, adenovirus, and adeno-associated virus (AAV)...humans, earning this virus a BSL-2 classification. Lentivirus (a type of retrovirus) and gamma retrovirus require...and required in BSL-2 labs. When working with lentivirus, many organizations require or recommend disposable...
  10. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    Published
    March 31, 2016, 2:30 p.m.
    ...on the functional elements they contain. Plasmid DNA in both prokaryotic and eukaryotic systems must be...the right. The tertiary structure of the hairpin-DNA complex is thought to destabilize the transcription...terminator will suffice. Many commercial expression vectors use double terminators to reduce unwanted translation... handled with care (4). For this reason, viral vectors often employ other non-poly(A) transcript-stabilizing...Expression of Transgenes  Delivered by Retroviral Vectors. Journal of Virology. 1999. PubMed PMID: 10074136...Transcription Termination Rho-dependent termination DNA transcription Polyadenylation: General overview... Substantially Increases Expression Levels of Lentivirus-Delivered Transgenes but Has the Potential to...
  11. Viral Vectors 101: Biosensors

    Type
    Blog Post
    Published
    July 6, 2023, 1 p.m.
    ...engineered into viral vectors, so if you want to use them, you’ll need to use the vectors (or redesign the ...receptor could be something like an antibody, enzyme, DNA, etc. The receptors job is to generate a quantitative...Biosensors Viral Service: Biosensor AAV Viral Vectors 101 eBook Resources on the Addgene blog An Overview...ready to deliver your sensor, whether you choose lentivirus, gamma retrovirus, or AAV as your vehicle, we...
  12. Starter Guide to induced Pluripotent Stem Cells (iPSCs) Part 2:  Reprogramming and Transdifferentiation

    Type
    Blog Post
    Published
    Nov. 6, 2018, 1:12 p.m.
    ...Differentiate the Stem Cell Field Learn how lentiviral vectors can be used for gene delivery Resources ...and in vitro methods are similar except that the vectors carrying the transdifferentiation factors are directly... (iPSCs) by temperature-sensitive Sendai virus vectors. Proc Natl Acad Sci U S A, 2011. 108(34): p. 14234...., Human induced pluripotent stem cells free of vector and transgene sequences. Science, 2009. 324(5928...mouse induced pluripotent stem cells without viral vectors. Science, 2008. 322(5903): p. 949-53. PubMed PMID...Addgene.org Visit our Stem Cell Pages Find Viral Vectors for Your Research Find Plasmids from the Yamanaka...common delivery methods include retrovirus [2], lentivirus [4], adenovirus [5], Sendai virus [6], plasmid...
  13. A Novice's Perspective on Neuroscience - SfN2017

    Type
    Blog Post
    Published
    Dec. 15, 2017, 2:07 p.m.
    ...virus (AAV) and lentivirus are now available from Addgene. While super useful, these vectors require a bit...images of brain regions, or sequences of microbial DNA they all seem to require some mathematical know-how...to generate new knockout mice, using adenoviral vectors to deliver IGF receptors to the brain, and probing...individual labs to make efficiently. For select viral vectors in the repository, you can instead have Addgene... into neuroscience, you could look to our viral vector pages on the Addgene website and on the Addgene...
  14. Viral Vectors 101: Producing Your rAAV

    Type
    Blog Post
    Published
    July 16, 2024, 1:15 p.m.
    ...to be digested with DNase before undergoing titering, to remove residual plasmid DNA carried over from ...you’ll need to determine the titer of your viral vector solution. A variety of titering methods have been...about common AAV applications by reading our Viral Vectors 101 series!  This post was originally written by... Unpurified Recombinant Adeno-Associated Viral Vectors [Preprint]. Molecular Biology. https://doi.org/...the Stability and Inactivation of AAV Serotype 1 Vectors. Human Gene Therapy Methods, 28(1), Article 1. ...(2021). Inactivation of Adeno-Associated Viral Vectors by Oxidant-Based Disinfectants. Human Gene Therapy...single-stranded and self-complementary adeno-associated viral vector genome titers by droplet digital PCR. Human Gene...
  15. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

    Type
    Blog Post
    Published
    June 28, 2018, 3:01 p.m.
    ... how proteins interact with one another (or with DNA) to perform diverse biochemical tasks in the cell...pitfalls: they require construction of plasmid vectors and/or rely on cumbersome in vitro synthesis of...-IN” bioinformatics tool for guide RNA and donor DNA design, and implemented our optimised protocols into...to cells: a guide RNA, Cas9 protein, and a donor DNA that contains the tag sequence flanked by homology...CRISPR experiments (in collaboration with Integrated DNA Technologies, USA). These synthetic RNAs can also...csRNP complex formation, a single-stranded donor DNA (ssODN) that contains the tag-encoding sequence and... annealed cr:tracrRNA, and single-stranded donor DNA. The success of the epitope tagging experiment depends...
  16. Using AAV for Neuronal Tracing

    Type
    Blog Post
    Published
    Aug. 9, 2018, 1:04 p.m.
    ...communication. Viral vectors and the nervous system With the advent of viral vector technology, new methods... at Addgene). AAV vectors: A platform for delivering neuronal tracers AAV vectors have been widely used... The AAV genome is a single-stranded DNA molecule and AAV vectors are replication deficient (i.e. they... low immunogenicity and cellular toxicity. AAV vectors can be equipped with strong promoters for high ... is often made Cre-dependent. If Cre-dependent vectors are used in transgenic animals that express Cre...that also express Cre. Another advantage of AAV vectors is that there are well-established protocols for...life cycle. Using AAV for neuronal tracing AAV vectors are the first choice of many neuroscientists, with...
  17. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...My lab's vector of choice is AAV, with nearly every experiment requiring AAV. Before joining my lab, ...Production of recombinant adeno-associated viral vectors for in vitro and in vivo use. Current protocols...always make more AAV than I think I need. Unlike lentivirus, AAV requires a higher number of viral particles...are present in an AAV prep. AAV samples are first DNaseI digested to remove any residual AAV plasmid that... account for the dilution of the sample for the DNAseI digest. Use good sterile technique when handling...Addgene.org Learn how Addgene produces AAV and lentivirus Check out Addgene's virus protocols Find AAV ...
Showing: 61 - 77 of 77 results