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TypeBlog PostPublishedApril 4, 2019, 12:53 p.m.... 100-fold excess of wild-type bacteria and the relative frequency of each of the 40 library strains was...
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Addgene's Cancer Collection Pages Connect the Research Community
TypeBlog PostPublishedSept. 6, 2016, 2:30 p.m....Ras researchers, one of the most exciting and relatively new resources is the RAS Pathway Clone Collection...cases arise and millions of people die from cancer-related complications each year. Despite these grim statistics...making the results of any such study as clinically relevant as possible. Connecting the research community... initiative to curate our collection of cancer-related plasmids such that each is linked to a known major... -
Cpf1 Update: Comparison to Cas9 and NgAgo
TypeBlog PostPublishedJuly 14, 2016, 2:30 p.m....future edits. In contrast, since Cpf1 cleaves relatively far away from the PAM, NHEJ might retain the ... genetic capacity of ~4.5 kb. At 4.1 kb, SpCas9 barely fits into AAV when you add in a gRNA and regulatory... -
Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More
TypeBlog PostPublishedJune 12, 2014, 3:30 p.m....Nicotiana benthamiana. N. benthamiana is a tobacco relative and a good model for plant disease because it ...tools work in any plant? Patron: The MoClo kit is entirely for dicots, not grasses and wheat, but we do work... have your parts. That was the motivation for releasing a large parts kit. Once you have so many parts... -
Degrading DNA with Cascade-Cas3
TypeBlog PostPublishedFeb. 11, 2025, 2:15 p.m.... other Cas effectors can’t, while maintaining relatively high efficiency. These alterations are achieved...inversions and large deletions. Many of these methods rely on Cas9 or a derivative of Cas9, but the ever-expanding... -
Production of Virus in Insect Versus Mammalian Cells
TypeBlog PostPublishedNov. 5, 2024, 8:32 p.m..... Time Viral production in mammalian cells is relatively quick. After transfection, HEK-293T cells start... cells, and its lifecycle ends in cell lysis, releasing the virus to the supernatant. The virus will reach... -
Plasmids 101: Choosing an Antibiotic Resistance Gene
TypeBlog PostPublishedOct. 10, 2023, 1 p.m.... some people still use amp? Carb is expensive (relative to amp), and for some applications, the benefit...their mode of action and have a very similar relationship as amp and carb (they are interchangeable). ...low rate, there is evidence that zeocin is never entirely detoxified, even when Sh ble is expressed (Trastoy... -
SciComm: Taking Science to Elementary and Middle Schools
TypeBlog PostPublishedJuly 9, 2019, 12:52 p.m....molecular mechanism, I was careful to keep it relatively simple. I honed the complexity of the talk by...rather “let’s see how we can make this fun activity relate to STEM.” Figure 1 shows the activities we had ... -
The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data
TypeBlog PostPublishedJuly 16, 2020, 1:15 p.m....and uncertainty in estimating parameters from relatively sparse data from China. An important additional...particular scientific subfields. Plasmid requests correlate with paper publication The dataset includes 11,426... -
How to Write a Scientific Review Article
TypeBlog PostPublishedFeb. 16, 2017, 3:30 p.m.... all the proteins in the class that showed the relative sizes and the conserved domains. This information... maybe you’re researching a topic for which no relevant or recent review exists. Once you pick a topic...format also has the benefit of exposing you to relevant researchers in the field. Finally, you can sound...from start to finish. Find the information that’s relevant to you, note it, and move on. At the beginning... -
Better Dyeing Through Chemistry & Small Molecule Fluorophores
TypeBlog PostPublishedSept. 8, 2016, 2:30 p.m....easiest switch from fluorescent proteins given the relative simplicity of the system and the availability ... -
CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics
TypeBlog PostPublishedAug. 9, 2016, 2:30 p.m.... use next-generation sequencing to measure the relative proportion of guide RNAs (gRNAs) across the population...die or differentiate Step 3 reveals which NANOG-related genes are critical to stem cell survival. Knowing... -
Lentiviral Vector Uses and Overview
TypeBlog PostPublishedMay 19, 2016, 2:30 p.m.... deliver a large amount of DNA (~8 kb) with a relatively low immune response, it should come as no surprise... co-transfection of these plasmids, 293T cells released transgene-containing lentiviral particles into... -
Minigenomes - a Safe Way to Study Dangerous Viruses Like the Ebola Virus
TypeBlog PostPublishedMarch 17, 2016, 2:30 p.m.... necessary control elements for each would be relatively large. Cloning the viral genes in this plasmid... -
Cpf1: A New Tool for CRISPR Genome Editing
TypeBlog PostPublishedOct. 14, 2015, 2:30 p.m....future edits. In contrast, since Cpf1 cleaves relatively far away from the PAM, NHEJ might retain the ... -
Plasmids 101: Protein tags
TypeBlog PostPublishedDec. 11, 2014, 4:26 p.m....and purification An affinity tag, generally a relatively small sequence of amino acids, is basically a... Thus far Plasmids 101 has covered GFP and its related fluorescent proteins, which are sometimes used ...crystallizing it or testing its function. Small ubiquitin-related modifier (SUMO) can help with folding and stabilization...western blots, IP, co-IP, IF, flow -cytometry, but rarely used for purification as elution requires low pH... 0.8 Affinity and Purification Very small size, rarely affects function S-tag KETAAAKFERQHMDS 1.8 Solubility... -
Plasmids 101: Multicistronic Vectors
TypeBlog PostPublishedSept. 9, 2014, 8:20 p.m....plasmid is packaged for viral delivery, or the relative expression levels between two or more genes is...the same mRNA. The term "self-cleaving" is not entirely accurate, as these peptides are thought to function... plasmids listed in the table above (and their related plasmids) are designed to have one or more of the...fluorescent reporter for easy detection.5 Just released: Addgene's Plasmids 101 eBook And now for some... -
Twenty Years of Sharing: Addgene's Viral Vector Service
TypeBlog PostPublishedJuly 30, 2024, 1:15 p.m....could be a matter of timing, as jGCaMP7 was released relatively soon after GCaMP6. It could be a matter of...editor of Addgene’s eBooks — including the recently released Viral Vectors 101 2nd edition — I was incredibly...lessons learned from our plasmid lab to develop a reliable and robust high quality viral vector service, ...vector service because we realized that having reliable ready-to-use vectors made from plasmids in the... -
Antibodies 101: Reading a Flow Plot
TypeBlog PostPublishedFeb. 6, 2024, 3:13 p.m....population. Heat maps are often used to indicate the relative density of cells. You can see both of these features...are used to show frequency of events, instead of relying on clustered dots. In a contour plot, each line...intracellular IFNγ, IL-17 and IL-10 producing T cells correlates with the occurrence of post-transplant opportunistic... -
New Acoustic Reporter Genes: Ultrasound Imaging of Gene Expression
TypeBlog PostPublishedJan. 24, 2023, 2:15 p.m....L-arabinose) without signs of toxicity or burden relative to a fluorescent protein control. We also added...to produce GVs in their own lab using the most reliable method, which is the transient cotransfection ...