Skip to main content
Addgene
Showing: 301 - 330 of 506 results
  1. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    ... viability controls such as DNA binding dyes and amine reactive dyes. DNA binding dyes, such as propidium...membranes as is the case with dead or dying cells. DNA binding dyes are not compatible with protocols that...amine reactive dye, such as LIVE/DEAD stain. Like DNA binding dyes, amine reactive dyes can only pass through...Visit the Fluorescent Protein Guide Find antibody plasmids for your experiments ...
  2. Genome-wide Screening Using CRISPR

    Type
    Blog Post
    ...in a 1-plasmid system, in which Cas9 is included on the gRNA-containing plasmid, or a 2-plasmid system...contain thousands of gRNA plasmids, discerned only by a unique barcode on each plasmid. As such, sequencing...gRNA generates a double-strand break in the target DNA, which, when repaired through error-prone non-homologous...are composed of many different gRNA-containing plasmids, each with a different genomic target. The goal...sequences and ease of generating gRNA-containing plasmids. CRISPR genome wide-screening experiments commonly...other types of experiments, check out our CRISPR Plasmids and Resources Page. References McDade JR, Waxmonsky...Lentivirus Get Tips on Titering Your Lentivirus Plasmids 101: NGS Quality Control for Pooled Libraries ...
  3. Designer PUF Proteins for Any RNA Target

    Type
    Blog Post
    ...transcription factors – to specific sequences of DNA has become commonplace. This ability has opened up...and improve, Abil says they will make those new plasmids available through Addgene, and they hope others...
  4. The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data

    Type
    Blog Post
    ...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...
  5. Split-BioID: An Improved Method for Studying Protein-Protein Interactions

    Type
    Blog Post
    ...Addgene.org Find plasmids from the Bethune Lab Find Plasmids from the Roux Lab Find Plasmids for FRET ...Learn about plasmids for in vivo biotinylation of bacterial fusions proteins Study Protein-DNA Interactions...BirA* fusion proteins are expressed in cells via plasmids or by the creation of stable cell lines and these...Interested in using Split-BioID with your research? Plasmids are available from Addgene! References Schopp... Central PMCID: 5467174. Find the Split-BioID Plasmids Here! Munter, S.D., Görnemann, J., Derua, R.,...site than in Schopp et al. Find these Split-BioID Plasmids Here!   Burke, B., Kim, D.I., Roux, K.J., & Raida...PubMed Central PMCID: 3308701. Find the BioID Plasmids Here! Macneill, S., & Varnaitė, R. (2016). Meet...
  6. CRISPR Library Amplification

    Type
    Protocol
    ...pooled library DNA (100 ng plasmid DNA per 25 µL electrocompetent cells) Less library DNA can be used but...multiplexed experiments. These pooled plasmids differ by only a short region of DNA: guide RNAs targeting different...differences, and plasmid recombination can all impact the representation of individual plasmids in the pooled... ). Lentiviral plasmids can recombine between their LTRs resulting in a smaller plasmid containing only... to ensure high efficiency uptake of plasmid library DNA. This quantity of cells is sufficient for libraries...200,000 individual plasmids. For larger libraries scale the number of cells and DNA accordingly. Pro-Tip...enough for the purpose of a Maxiprep. Purify plasmid DNA using the Qiagen HiSpeed Maxi Kit (one conical...
  7. DNA Service - Cloning Grade DNA

    Type
    Collection
    ...Details Plasmids Available FAQ Addgene is offering Cloning Grade DNA (cgDNA) for over 200 plasmids in our...next generation sequencing Plasmids Available as Cloning Grade DNA ID Plasmid Description Industry PI FAQ...performed on my cloning grade DNA order? For each cloning grade DNA prep, the plasmid sequence has been validated...different DNA concentrations. Can I directly transfect cloning grade DNA into cells? Cloning grade DNA is designed...cloning grade DNA preps of this plasmid available, but helps to inform us of which plasmids would be most...cloning grade DNA for over 200 of our most popular plasmids! DNA... DNA Service: Cloning Grade DNA Service Details...
  8. Hot Plasmids and Viral Preps - May 2021

    Type
    Blog Post
    ...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...highlights from recent CRISPR plasmids. To find all of the CRISPR plasmids available from Addgene, head...Hutchinson Cancer Research Center developed a pooled plasmid library encompassing all possible amino acid mutations...anti-SARS-CoV-2 antibodies. In the library, each plasmid encodes the mutated spike protein and a barcode...head over to our CRISPR Plasmids and Resources page.  A new system uses light to deactivate photocleavable... accumulation of indels to measure time. These plasmids with different promoters driving expression of...
  9. Lentiviral Vector Uses and Overview

    Type
    Blog Post
    ...consisted of three plasmids: the packaging, envelope, and transfer plasmids. The packaging plasmid carried a mutated... packaging and envelope plasmids are two of Addgene’s most requested plasmids! Lentiviral particles with...Many CRISPR plasmids are designed for lentiviral use, including Addgene’s top requested plasmid in 2015: ...itself due to a few missing proteins. The envelope plasmid contained a viral envelope to dictate the tropism...the vector could infect. Finally, the transfer plasmid encoded the desired transgene flanked by HIV-1 ...genome integration. After co-transfection of these plasmids, 293T cells released transgene-containing lentiviral...recombination between the transfer and packaging plasmids does exist. To further reduce this possibility...
  10. Sharing Your Lab Protocols: Using Apps to Save Time & Track Your Experiments

    Type
    Blog Post
    ...restriction digest of plasmid DNA, and bacterial transformation. And more plasmid-related educational resources... requested plasmids. I wondered how many scientists have used the protocol for this plasmid, and if it... your protocols onto your plasmid page, scientists who request your plasmid will have easy access to your...be found in our Plasmids 101 blog series. Want to learn more about sharing your plasmids via Addgene? Check... resources, such as protocols, Plasmids 101 articles on various plasmid features, and reference tables...deposit their plasmids to the repository. These protocols show up on the related plasmid pages and can...http://www.addgene.org/ If you’re working with plasmids and you decide to share them using Addgene’s repository...
  11. K. phaffii: Rising to the Occasion

    Type
    Blog Post
    ...-mediated cloning CRISPR plasmids: Yeast Yeast Synthetic Biology Plasmids ...uses non-homologous end joining (NHEJ) to perform DNA double strand break repair instead of homologous ...the Addgene Blog Five Popular Model Organisms Plasmids 101: Yeast Vectors Tips for Screening with the...
  12. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    ... Some researchers have used fluorescently tagged DNA-binding proteins to label certain loci, but this ...24360272. PubMed Central PMCID: PMC3918502. Find plasmids from this publication at Addgene. 2. Ma, Hanhui...25713381. PubMed Central PMCID: PMC4364232. Find the plasmids from this publication at Addgene. 3. Ma, Hanhui...27088723. PubMed Central PMCID: PMC4864854. Find the plasmids from this publication at Addgene. 4. Kiani, Samira...26344044. PubMed Central PMCID: PMC4666719. Find plasmids from this publication at Addgene. Additional ...Resources on Asddgene.org Find Fluorescent Protein Plasmids Find Fluorescent Protein Kits Find Empty Backbones...
  13. Protocol - How to Perform a Diagnostic Digest

    Type
    Protocol
    ...for verifying plasmids like this is "plasmid fingerprinting", where you cut the plasmid into 3-8 pieces...Digest You may also like... Restriction Digest of Plasmid DNA Agarose Gel Electrophoresis Introduction Restriction... to selectively move a specific piece of DNA from one plasmid to another. A diagnostic restriction enzyme...enzymes cleave DNA at specific sequences called restrictions sites. Often, the size of the plasmid insert and...used to verify your plasmid. The goal of a diagnostic digest is to cut your plasmid into specific sized...restriction enzyme or enzymes that cut your plasmid. Many DNA analysis tools, including Addgene’s Sequence... Pipetman Pipet tips Reagents Liquid DNA aliquot of your plasmid of interest (see below for recommended...
  14. CrispyCrunch: High-throughput Design and Analysis of CRISPR+HDR Experiments

    Type
    Blog Post
    ...interaction due to mismatches between the guide and the DNA target. CFD scores are then modified (“transformed...sequence, one by one, from the PAM outwards so that the DNA sequence is altered but the protein sequence they...software Resources on Addgene.org Find CRISPR plasmids and resources Download the CRISPR eBook Read our...
  15. Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus

    Type
    Blog Post
    ...reconstituted after integration; and a sequence of stuffer DNA after the gRNA target site. Donor B contains: 400...Since this approach is dependent on double-strand DNA break repair, if non-homologous end joining (NHEJ...2013) Oversized AAV Transductifon Is Mediated via a DNA-PKcs-independent, Rad51C-dependent Repair Pathway...therapy Learn about the parts of an AAV transfer plasmid Resources on Addgene.org: Check out the Addgene...
  16. DNA Quantification

    Type
    Protocol
    ...Recovering Plasmid DNA from Bacterial Culture Restriction Digest of Plasmid DNA Background Information During...your DNA sample concentration and purity using Addgene’s DNA Quantification Protocol. Protocols...spectrophotometer using the solution the DNA is resuspended in, but with no DNA added. 'Blanking' measures the ... Protocols DNA Quantification...Quantification DNA Quantification You may also like... Inoculating a Liquid Bacterial Culture Recovering...important to get a quick and accurate reading of DNA concentration and purity. This can be done with a... maximally absorbs. In the case of nucleic acid (DNA and RNA), the maximal absorbance is at 260nm. Protein...
  17. Protocol - How to Create a Bacterial Glycerol Stock

    Type
    Protocol
    ...stocks of their plasmids. This way, when you want to make more plasmid DNA, the plasmid will already be... for long-term storage of plasmids. Although you can store your plasmid DNA at -20°C, many labs also create... Storage of Plasmids Creating Bacterial Glycerol Stocks for Long-term Storage of Plasmids You may also... like... Bacterial Transformation Recovering Plasmid DNA from Bacterial Culture Background Information...able to start an overnight culture for plasmid DNA prep the following day. Tips and FAQ The optimal concentration...glycerol stock the same time you prepare your plasmid DNA. In the morning, when you retrieve your liquid... and growth temperature, can be found on your plasmid's information page. The next day you will be able...
  18. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    ...taken up the plasmid. This can serve as an alternative to antibiotic selection. Plasmids of this type .... Scientists can easily utilize GFP-containing plasmids as a means to many functional ends. We’ve listed...each protein or domain being tested. Find FRET plasmids here. Split EGFP: An alternative to FRET, split... marking/selection: Expression constructs like plasmids often include GFP as a marker to help identify...nude mice in cancer studies, act as a reporter for DNA double strand break repair, and to label pathogenic...techniques in fluorescent microscopy. Read More: All Plasmids 101 Articles Addgene's Fluorescent Protein Guide... plasmids 101...
  19. CRISPR-based Genome Editing Systems For Editing in E. coli

    Type
    Blog Post
    ...sequence in pEcgRNA. Next both plasmids are transformed in E. coli with the donor DNA for editing to take place...beneficial for plasmid clearance. It is more convenient to update the spacer(20nt) on pEcgRNA plasmid as only.... pCutamp cures the plasmids by targeting the ampR promoter in all three plasmids. pCutamp is then removed... 13 plasmids with 14 rounds of transformation in 30 days. Figure 2: (A) MUCICAT plasmids for ... original pCas/pTargetF system consists of one plasmid that expresses the S. pyogenes Cas9, a temperature-sensitive...the pTargetF construct and then introduce both plasmids into the cell. The edit in the chromosome can ...the pMB1 replicon, resulting in cutting of the plasmid. At this point, subsequent introductions of pTargetF...
  20. Celebrating 15 Years of Scientific Sharing

    Type
    Blog Post
    ...the challenges of DNA distribution to ensure scientists everywhere can access plasmids despite the evolving... that is something to recognize! Distributing plasmids, viral service, and more For the first time ...to worry about succeeding at our core mission. Plasmid distribution is amazingly still growing at >9% ...Addgene Resources on the Addgene website Find plasmids for your research  Learn about our viral service...
  21. Plasmids 101: Secondary Nanobody Toolbox

    Type
    Blog Post
    ... How to Use the Nanobody Toolbox Find Nanobody Plasmids Structural comparison As the name suggests, ... Species Antibody Subclass Nanobody Addgene Plasmid Rabbit N/A* TP897 pTP1183 (1x cysteine) pTP955...Nanobody In Bacteria: Table 2 also has a link to the plasmid you’ll need to express your nanobody of choice ...column. bdNEDP1 protease can be generated using plasmid pDG02583. Label the Nanobodies: Purified nanobodies...Journal of Cell Biology. PubMed PMID: 29263082 Find plasmids from this publication at Addgene. 2. Bates, M...23495938. Additional Resources on the Addgene Blog DIY DNA ladders from Penn State University Use Nanobodies... on Addgene.org Find more nanobody expression plasmids here Additional Resources Looking for monoclonal...
  22. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    ...episomal expression. Episomes are circular pieces of DNA that reside outside a host cell’s genome. In this... The most obvious workaround is to use a multi-plasmid system, where you have one AAV vector dedicated...levels of AAV vector integration into CRISPR-induced DNA breaks. Nature Communications, 10(1). https://doi.org...
  23. The Challenges of Cell Culture

    Type
    Blog Post
    ...good that it is used as a forensic technique (aka DNA fingerprinting) that can place suspects at the scene...range of testing, from animal doping to forensics, DNA sequencing to drug testing. You can find Nick on ...Protein Localization Resources on Addgene.org Find Plasmids for Mammalian Cells ...
  24. AAVs in Retinal Gene Therapy

    Type
    Blog Post
    ...random) integration into the genome, and its large DNA packaging capacity is well suited for larger transgenes...AAV. Its main limitation is the small size of its DNA cargo - 4.8 kb at most - which means that a gene ...in mammals Resources at Addgene.org Find AAV plasmids Find ready-to-use AAV viral preps Browse all viral...
  25. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

    Type
    Blog Post
    ...derivatives. Unmodified Cas9 causes double stranded DNA breaks that commonly result in a complete loss of...These mutations result in an inactive RNA-guided DNA binding protein (dCas9). dCas9 is then tethered to... CRISPR Resources on Addgene.org Find CRISPR plasmids and resources here Find pooled libraries available...viability genes as they are subject to an increase in dsDNA breaks that can cause cell death. Thus, CRISPR inhibition...mitigating toxicity induced by high copy number dsDNA cutting. A Dolcetto library containing only 3 sgRNAs...
  26. FlipGFP, a novel fluorescence protease reporter to study apoptosis

    Type
    Blog Post
    ... external signals such as developmental cues and DNA damage. These signals activate a cascade of caspases...these diseases and disorders. You can find the plasmids for FlipGFP and FlipCherry at Addgene. References...Download the fluorescent proteins 101 eBook Read our plasmids 101 blog series Resources on Addgene.org Browse...protein fusions Browse the fluorescent proteins plasmid kits ...
  27. Plasmids 101: The Promoter Region – Let's Go!

    Type
    Blog Post
    ...Once you've gotten to know what a plasmid is in general, it's time to take a look at some of its parts...origin of replication are necessary to replicate plasmids and make sure the cells maintains it. Here, we'll...the promoter, which is necessary for getting the plasmid express our gene of interest. This element is responsible...  The RNA polymerase(s) RNA is transcribed from DNA using an RNA polymerase (RNAP). In bacteria this .... This means that the promoter present in your plasmid backbone must to be compatible with the type of...transcript, you will also need to make sure your plasmid has a promoter suited to working in your host organism...development-specific promoters available to scientists. Plasmids are oftentimes put to therapeutic uses, and in...
  28. What is Polymerase Chain Reaction (PCR)

    Type
    Protocol
    ...You may also like... Plasmid Cloning by PCR Restriction Digest of Plasmid DNA DNA Ligation Background ...stranded DNA template strands. The DNA polymerase is also stable enough to now bind to the primer DNA sequence...which would denature DNA polymerases from other species. In addition to the template DNA and the Taq polymerase...several micrograms of target DNA from just a few nanograms of template DNA through several cycles of denaturation...this step enables the DNA polymerase to synthesize and elongate the new target DNA strand accurately and... are using the same template DNA for all your reactions, the Template DNA can be added to the master mix...the number of nanomoles of DNA times 10. For example, if your lyophilized DNA is 38.5nm, add 385µl of water...
  29. Lentivirus Production

    Type
    Protocol
    ...Transfection grade DNAs: Lentiviral Packaging plasmid(s), Envelope plasmid, and Transfer plasmid encoding your...therefore, plasmid DNA purification should include an endotoxin removal step. For high quality plasmid DNA, ...transfection plasmids into OptiPro SFM: Reagent Amount per 10 cm dish* Packaging Plasmid ( psPAX2 ) 1.3...1.3 pmol Envelope Plasmid ( pMD2.G ) 0.72 pmol Transfer Plasmid* 1.64 pmol OptiPro SFM to total volume...volume 500 μL *Plasmid concentrations and ratios should be optimized for each transfer plasmid. Pro-Tip Endotoxins...dCas9-KRAB (total μg of plasmid DNA 27.8 μg), this would be 83.4 μL of 1 mg/mL PEI in 416.6 μL of OptiPro...the diluted DNA mixture. Add the diluted PEI dropwise while gently flicking the diluted DNA tube. Incubate...
Showing: 301 - 330 of 506 results