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TypeBlog PostPublishedMay 6, 2025, 1:15 p.m.... edit plasmids. These are prone to error — both human and biological. Even the most high-fidelity polymerases...Depositing scientists provide different types of data for each of their plasmids, from descriptions of...plasmids in the deposit, NCBI sequence and protein data, as well as available backbone sequences. All of...at a best practices meeting, where the QC team updates and reviews our sequencing QC standards to ensure...
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CRISPR 101: Cas9 vs. The Other Cas(s)
TypeBlog PostPublishedDec. 8, 2022, 2:15 p.m....Introducing a Spectrum of Long-Range Genomic Deletions in Human Embryonic Stem Cells Using Type I CRISPR-Cas. Molecular...target sequence and initiates single stranded DNA degradation. Cas3 DNA digestion can proceed up to multiple... -
Getting Started with Behavioral Neuroscience: Standardizing Experiments and Using Viral Vectors
TypeBlog PostPublishedAug. 20, 2019, 12:31 p.m.... light bulbs, for example) that are outside the humans’ audible spectrum. The experimental apparatus should...certain behavior. It is a very old branch of science, dating back several hundred years, with historical ties... -
Lab Automation at Addgene
TypeBlog PostPublishedMarch 22, 2018, 1:28 p.m....is ideal because it eliminates the potential of human error or cross contamination between samples. With...Updated Apr 6, 2021. If you’re doing high throughput work, it’s likely that you come into the lab wishing...hand. We’ll be sure to tell you about more lab updates as we develop them. In the meantime, if you have... -
Adapting Toehold Switches to Detect Zika Virus
TypeBlog PostPublishedAug. 30, 2016, 2:30 p.m....developing cell-free synthetic biology applications for human health and the environment. Alexander A. Green...sequence information from public databases to the production of validated sensors in as little as one week... -
Plasmids 101: Degron Tags
TypeBlog PostPublishedMarch 14, 2024, 1:15 p.m....Protein Tags Plasmids for Endogenous Gene Tagging in Human Cells Antibodies 101: Epitope Tags ...of a protein and can inducibly facilitate the degradation of the tagged protein. Degrons are destabilizing...various enzymes and sent to the proteasome for degradation. The tags we will discuss here are all conditional...conditional, meaning that they only facilitate degradation of their fused protein under certain conditions...are reversible mechanisms of control. Protein degradation can be induced by the addition of a small molecule...to normal once the drug has been removed. The degradation and reversal are rapid compared to other systems... entire tagged protein to the proteasome for degradation. In addition to having the coolest name of all... -
15 Hot Plasmids from 2017
TypeBlog PostPublishedJan. 9, 2018, 3:02 p.m....classic technique to elucidate the mechanism by which SOX2 acts to reprogram human fibroblasts into induced...Mammalian Expression Construct SpCas9 Inhibition (Human Cells) acrIIA1 Listeria monocytogenes pRAU168...Addgene blog to get all the latest hot plasmid updates! Tol2 Gateway-compatiable toolbox for studying...subtilis libraries Transcription factor fusions elucidate iPSC reprogramming mechanism The Ptashne lab ... modular cloning steps. The Voytas lab plans to update the toolkit frequently and has developed a website... -
Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More
TypeBlog PostPublishedJune 12, 2014, 3:30 p.m.... so that students see academics as well-rounded human beings. It’s also a great communication tool for...disease. They also devise biosensors designed to elucidate the molecular interactions that go on between ... What does it include? Patron: Sainsbury has a mandate to share and educate and enable plant science in...making all the tools for plant research here and validating them, it made the most sense to us to enable ... MoClo system. The paper also gives quantitative data for regulatory elements, which has not been available... -
Truncated gRNAs for Regulating Gene Expression
TypeBlog PostPublishedJan. 10, 2017, 3:37 p.m....PMC4666719. 4. Mali, Prashant, et al. "RNA-guided human genome engineering via Cas9." Science 339.6121 (...transcriptional and epigenetic regulation have been validated with these proteins. Furthermore, among those ...through the creation of innovative technologies. To date his group has develop several popular CRISPR-based...Addgene.org Check Out Our CRISPR Guide Pages Find Validated gRNAs for Your Experiments Get Ready-to-Use CRISPR... -
CRISPR 101: Cytosine and Adenine Base Editors
TypeBlog PostPublishedFeb. 13, 2025, 2:15 p.m....frequency to above 30% for a variety of targets in human cell lines, with an average indel frequency of only...catalyzes both cytosine and adenine base conversions in human cells. Nature Biotechnology, 38(7), 856–860. https...written by Mary Gearing in August 2016 and was updated by Jennifer Tsang in August 2020 and by Emily P... Browse CRISPR plasmids for base editing Find validated gRNAs ... -
Hot Plasmids May 2018 - Optogenetics, Decaffeination, Biosensors, and Fluorescent Protein Tools
TypeBlog PostPublishedMay 15, 2018, 12:43 p.m....adding a 9-residue peptide to the C-terminus of human codon-optimized cryptochrome 2 (CRY2) from Arabidopsis...containing a synthetic operon that enables the degradation of caffeine (1,3,7-trimethylxanthine) and its... -
Progress Towards a PAM-Free CRISPR
TypeBlog PostPublishedMarch 7, 2024, 2:39 p.m.... Fig. 1: SpCas9 has sparse PAM coverage in the human genome. SpRY Cas9 has PAM sites covering the majority... off-target binding. The activity of SpRY was validated in double stranded cleavage and base editing applications... -
6 Tips for Grant Writing
TypeBlog PostPublishedOct. 18, 2016, 2:30 p.m....Check out some in-depth grant writing tips at the Human Frontier Science Program's website. One way to add..., or even the successful use of your preliminary data to secure further funding. Make it clear that you... -
The Scientific Conference Poster Session: Tips for Success
TypeBlog PostPublishedAug. 29, 2019, 12:50 p.m....Biology PhD Candidate at the University of Arizona. She studies the interaction between Human Papillomavirus... was contributed by Brittany L. Uhlorn, a PhD Candidate at the University of Arizona. Perhaps you’re about... -
An Inside Look into Addgene's Dev Team
TypeBlog PostPublishedJan. 23, 2020, 2:45 p.m....Greek to you, which brings me to my next analogy. Human languages evolve over time, for example from Ancient...up to date with their third party libraries and any security updates. Most of the time, updating these...need to update our code to be compatible with the updated library. A recent example is updating our software...would be staying on top of any third party library updates. Third party libraries are reusable software components...is no longer being maintained (i.e. hasn’t been updated in several years) or they make significant changes...this year, which means there will be no further updates, security or otherwise. This might sound like Greek...blog Learn about what went into our search engine update Find all Addgene news Resources on Addgene.org... -
CRISPR 101: Targeting RNA with Cas13a (C2c2)
TypeBlog PostPublishedSept. 21, 2017, 2:07 p.m....to differentiate strains of Zika virus, genotype human DNA, identify tumor mutations within cell-free genomic...This post was updated on Jul 27, 2020. CRISPR, and specifically Cas9 from S. pyogenes (SpCas9), is truly...From this analysis, they identified 53 potential candidate genes that fell into 3 categories based on the...question: C2c1, C2c2 and C2c3 (short for Class 2, candidate 1, 2, or 3). C2c1 and C2c3 are related to Cpf1...Cary Valley and Mary Gearing contributed to the update of this post. References 1. Abudayyeh, Omar O.,... Addgene.org Browse All CRISPR Plasmids Find Validated gRNAs for Your Next Experiment Check Out Our CRISPR... -
Magnetic Control of Proteins: More than a Dream
TypeBlog PostPublishedSept. 24, 2024, 1:15 p.m....fluorescent proteins and optogenetic tools exist, humans (like many organisms) are opaque, which makes most...website (and often posting updates on social media) and freely sharing code, raw data, and more. The team shares...mechanism, though they have collected a variety of data that might help formulate some hypotheses. They ... -
INTEGRATE: Bacterial Genome Engineering Using CRISPR-Transposons
TypeBlog PostPublishedDec. 7, 2020, 2:53 p.m....pipelines (e.g. using Tn5), and as knock-in tools for human therapeutics (e.g. using Sleeping Beauty). Despite...was contributed by guest blogger, Leo Vo, a PhD candidate in the Sternberg Lab at Columbia University Medical...VchINT, at two different incubation temperatures. Data adapted from Vo et al., 2020. In E. coli, the...guest blogger Leo Vo! Leo Vo is currently a PhD candidate in the Sternberg Lab at Columbia University Medical... -
Viral Vectors 101: The Retroviral Lifecycle
TypeBlog PostPublishedJuly 27, 2023, 1:15 p.m....Pseudodiploid Genome Organization Aids Full-Length Human Immunodeficiency Virus Type 1 DNA Synthesis. Journal...which HIV is a member — may seem like an unlikely candidate to use as a viral vector, but retroviruses have...lentiviral genome (right.) HIV seems an unlikely candidate for use as a tool in the lab because it is, after...understand these seemingly odd choices and lay the foundation for producing and using retroviral vectors effectively... -
10 Basic tips for mammalian cell culture
TypeBlog PostPublishedJuly 12, 2018, 1:09 p.m....Contamination, Ileana S., John P. S., Basic Methods, Human Stem Cell Manual (Second Edition), 2012. Additional... label your plates and/or flasks with your name, date, the cell line you’re using and its passage number...