We narrowed to 642 results for: Vars;
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TypeBlog PostPublishedOct. 13, 2020, 1:15 p.m....were transduced with H2B-FT virus and grown in varying concentrations of IL-3. Cells grown in high concentrations... Various Addgenies...
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CRISPR Activators: A Comparison Between dCas9-VP64, SAM, SunTag, VPR, and More!
TypeBlog PostPublishedOct. 6, 2020, 1:15 p.m....CRISPR activation uses dCas9, a CRISPR protein variant lacking its endonuclease ability, to bind to genes...factors to increase gene expression. CRISPRa methods vary in their transcriptional activators: some methods... -
CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems
TypeBlog PostPublishedJuly 23, 2020, 1:20 p.m.... CRISPR-Cas technology is constantly evolving. Variants of Cas proteins can be used for genome editing...out this post. Learn how to Choose the Best Cas9 Variant for Your Next Experiment Read more about Optogenetic... -
Overcoming the Challenges of Lentiviral Production
TypeBlog PostPublishedAug. 7, 2018, 12:31 p.m....overcome this, lentivirus can be concentrated by a variety of methods such as ultracentrifugation, centrifugation...Finally, choice of concentration method depends of a variety of factors such as resources available, cost and... -
BeHeard Award 2018: Diseases of Glycosylation, Arginine Mutagenesis, & Neural Development
TypeBlog PostPublishedJune 26, 2018, 1:33 p.m....that by demonstrating GdnHCl chemical rescue of a variety of disease-linked Arg-mutant proteins in the lab...then mutagenize the NFIX gene and test whether variants of unknown significance (VUSs) that are frequently... -
Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells
TypeBlog PostPublishedSept. 26, 2019, 12:50 p.m.... deliver Cas9 variants, such as a transcriptional activator dCas9-VPR, if these variants are fused to ... -
Mouse Modeling, Part 1: Genetically Engineered Mice
TypeBlog PostPublishedJuly 11, 2019, 1:26 p.m.... homozygous at nearly all loci. This reduces variability in genotype and phenotype and helps improve the...the cells in which Cre is expressed. Several variations of this technology can be used to customize the... -
Plasmids for Endogenous Gene Tagging in Human Cells
TypeBlog PostPublishedApril 6, 2017, 1:02 p.m....that use CRISPR/Cas9 to endogenously tag a wide variety of genes with GFP. These plasmids are available...gene of interest. Researchers have developed a variety of endogenous gene tagging systems. Addgene’s CRISPR-based... -
Corralling and Cornering the Goldilocks Antibody
TypeBlog PostPublishedAug. 9, 2022, 1:15 p.m....cross-reactivity (binds to non-target proteins), variability (separate batches can perform differently – happens...This homogeneity circumvents the batch-to-batch variability found in polyclonal antibodies, creating a potentially... -
Split Fluorescent Proteins for Studying Protein-Protein Interactions
TypeBlog PostPublishedMay 3, 2022, 1:15 p.m....2010 Yuhai Cui Red mScarlet Split-wrmScarlet variant of mScarlet Split-wrmScarlet and split-sfGFP: tools...-10) and sfCherry2(11), also photo-activatable variant PAsfCherry2(1-10) Improved split fluorescent proteins... -
Plasmids 101: Modular Cloning
TypeBlog PostPublishedMarch 12, 2024, 1:15 p.m....flexible nature of MoClo allows users to test a variety of different orientations and components within... allows researchers to assemble and test many variables all at once. CRISPR CRISPR arrays and libraries... -
High Complexity Golden Gate Assembly with NEB’s DAD
TypeBlog PostPublishedAug. 1, 2023, 1:15 p.m.... either 3-base or 4-base overhangs, and with a variety of different enzymes and cycling conditions (see... to 49% fidelity, with significant lot-to-lot variation. Additionally, this assembly, which used only ... -
A Look at Addgene's QC Process
TypeBlog PostPublishedMay 6, 2025, 1:15 p.m....for identifying, categorizing, and resolving a variety of QC issues. This process ensures that any potential...making the same decisions when analyzing the wide variety of discrepancies encountered in plasmids deposited... -
Plasmids 101: In-house NGS Plasmid Quality Control Now at Addgene
TypeBlog PostPublishedApril 6, 2021, 12:30 p.m....process and includes Picogreen quantification of various intermediate steps, a sizing electrophoretic gel... the pool but instead selectively sequence the variable portion of the plasmid in the pool - ex. the gRNA... -
Hot Plasmids and Viral Preps - March 2021
TypeBlog PostPublishedMarch 23, 2021, 1:15 p.m.... these modules (linker length can and should be varied as it can have important implications for the fusion... Various Addgenies... -
5 Tips for Troubleshooting Viral Transductions
TypeBlog PostPublishedAug. 11, 2016, 2:23 p.m....researcher and the type of virus, there have been varied reports of titer losses from 5% to 50% per freeze...be obtained. 4. Enhancing virus-cell contact A variety of reagents can increase transduction efficiency... -
Cpf1 Update: Comparison to Cas9 and NgAgo
TypeBlog PostPublishedJuly 14, 2016, 2:30 p.m....SaCas9. As seen with Cas9 orthologs, Cpf1 efficiency varies widely with gRNA sequence. Both groups used multiple...Cpf1 is also sensitive to single mismatches, but variably so, with Kleinstiver et al. reporting that Cpf1... -
Plasmids 101: FLEx Vectors
TypeBlog PostPublishedApril 28, 2016, 2:30 p.m...., FLEx is currently being used to study a wide variety of in vivo conditional gene rescue experiments,...switches to conditionally test the function of various point mutations and truncations in the absence ... -
Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015
TypeBlog PostPublishedDec. 1, 2015, 3:30 p.m....share plasmids, especially those of the CRISPR variety (see slides from my talk below). Largely organized...identify. There were dozens of different mushroom varieties alone. At least I could tell that they were mushrooms... -
Illuminating Epigenetics with A FRET Based Biosensor
TypeBlog PostPublishedNov. 19, 2015, 3:30 p.m....have been discovered to play a large role in a variety of diseases, ranging from cancer, to diabetes, ...transposon methylation underlies the mantled somaclonal variant of oil palm." Nature 525.7570 (2015): 533-537. ...