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Showing: 1 - 10 of 83 results
  1. Viral Production

    Type
    Collection
    ...cells several days later, and isolating genomic DNA. This DNA is then used as a template to amplify a portion...of the viral genome and the absence of unexpected DNA contaminants. The data is also used to determine ...abundance of viral capsid proteins as a fraction of total protein present in the sample is also determined...proteins VP1, VP2, and VP3 are shown relative to the total protein present in the sample. Sterility Viral vector...lentiviral vector, incubated for 72 h, and genomic DNA is extracted. Primers and probes targeting integrated...matching system that follows the sample from the DNA tube all the way to the cleared viral preparation...
  2. DNA Purification Without a Kit

    Type
    Blog Post
    ...and genomic DNA to precipitate. Plasmid DNA is free in solution. Proteins and genomic DNA are removed ...solubilizes both DNA and agarose, and 2) it helps DNA stick to the glass. After binding DNA, the glass particles...column, stop to consider some ways to purify DNA without a kit. DNA purification kits have advantages: they... and proteins are removed to leave you with DNA. This DNA is then washed, and either eluted from a fixed...modifications depending on the type of DNA you’re purifying (plasmid, genomic, or DNA fragments from agarose).    ...methods for DNA purification without a kit as well as one way to reuse silica columns from DNA purification... Finally, DNA is precipitated with alcohol and resuspended in TE buffer. After this, the DNA is ready ...
  3. Genomic Deletions in Mammalian Cell Lines

    Type
    Collection
    ...pellets in 50 μl of DNA extraction solution. NOTE: Generally ~100,000 cells are used for DNA extraction, although...recommend an efficient method for DNA extraction, any method for genomic DNA isolation may be utilized to ...for a total volume of 200 μl. Wait 24 - 72 hr to allow cells to grow. Aspirate media. Add 50 μl DNA extraction...evaluate clones at the DNA as well as RNA and/or protein levels. To evaluate the DNA, amplify deletion bands...sufficient cell proliferation for screening genomic DNA (gDNA) for the intended deletion by PCR (see steps 6.1...C for 6 min, 98 °C for 2 min to extract gDNA. Measure the DNA concentration. NOTE: While steps 6.1 and...DSBs) at a locus in order to delete the intervening DNA segment by non-homologous end joining (NHEJ) repair...
  4. AAV Packaged on Request

    Type
    Collection
    ...viral vector preps, which includes MTA facilitation, DNA amplification, and high-quality quality control measures...actual yields may vary by construct. Size Quantity Total Volume Minimum Titer Typical Titer Small 10 × 100...including legal approval and an implementation letter DNA amplification Viral vector production Density centrifugation...Quality is our priority. During this time, we amplify DNA, produce the prep, and perform comprehensive quality...
  5. Plasmids 101: Restriction Cloning

    Type
    Blog Post
    ...weight genomic DNA; filter the remaining plasmid DNA through a column that binds the plasmid DNA and lets other...fragment of DNA (insert) that has been cut by compatible restriction enzymes. An enzyme, DNA ligase, then...negatively charged DNA through the gel. As indicated in the figure on the left, your digested DNA (and undigested...the gel, the DNA migrates toward the anode (+ charge). Larger fragments of linearized DNA migrate slower...you to visualize your DNA using UV light – please note that UV light can damage DNA and that proper personal...indicated in red).     We recommend around 100ng of total DNA in a standard ligation reaction. You ideally want...such as DH5alpha or TOP10. If using much less total DNA (<1ng) or if you are having trouble getting colonies...
  6. Viral Production at Addgene

    Type
    Blog Post
    ...of the viral genome and the absence of unexpected DNA contaminants. The data is also used to determine ...abundance of viral capsid proteins as a fraction of total protein present in the sample is also determined...proteins VP1, VP2, and VP3 are shown relative to the total protein present in the sample.   Sterility Viral...lentiviral vector, incubated for 72 hours, and genomic DNA is extracted. Primers and probes targeting integrated...matching system that follows the sample from the DNA tube all the way to the cleared viral preparation...Addgene’s viral production. Barcoding allows our DNA and virus to be monitored throughout production, ..., ensuring the identity of each sample from the DNA tube all the way to the viral preparation. After production...
  7. The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data

    Type
    Blog Post
    ... June 4, 2020, COVID-19 has caused an estimated total of 380,000 deaths worldwide (statistics provided...20). Each paper has between 1–32 plasmids and a total of 2–2,590 requests. We received plasmid requests...Plasmid requests by date. Parentheses depict the total number of plasmids ordered for each paper. Rough...therapeutics. Prime editing, base editing, PACE, and DNA-templated synthesis are four examples of technologies...
  8. With Our New Viral Service, We're Taking CRISPR Further!

    Type
    Blog Post
    ...colored circles are rough approximations of the total number of CRISPR plasmids for that particular organism...Addgene. Percentages represent the fraction of that total with the indicated function. One huge reason CRISPR...from Addgene, you’ll also receive transfer plasmid DNA that you can use along with lentiviral packaging ...
  9. Plasmids 101: How to Verify Your Plasmid Using a Restriction Digest Analysis

    Type
    Blog Post
    ...steps: 1) incubating your DNA with restriction enzymes which cleave the DNA molecules at specific sites... pouring it. EtBr binds to the DNA and allows you to visualize the DNA under ultraviolet (UV) light. Don...Always run control uncut DNA to ensure your enzymes are working. When uncut plasmid DNA is isolated and run...there is something wrong! Quantify your DNA. Loading too much DNA will make it difficult to obtain crisp...knowing how much DNA you have loaded in each well will allow you to approximate the DNA mass of comparably...plasmid sequence. Once you have purified plasmid DNA, this method can be done right in your lab in less...to determine the relative sizes of the resulting DNA fragments. Restriction digests are commonly used ...
Showing: 1 - 10 of 83 results