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... pathway disrupt target gene sequences (thus inactivating genes), while breaks repaired by homology directed...the biological cause of this repair bias is a fascinating (and yet unanswered) question. Our recent paper...identical dissociation rates for catalytically inactive dCas9 molecules. We followed these experiments...vitro results also demonstrated that catalytically inactive dCas9 produced a “bubble” structure in uncut target...homology-directed genome editing by catalytically active and inactive CRISPR-Cas9 using asymmetric donor DNA." Nature...

..., the problem comes down to inadequate information about what the original researchers actually did. Admittedly... have to be this way. We can never completely eliminate the risk that a minor variation in experimental...put down a basic outline and refer back to the original paper that everyone in your lab has been referencing...President of Editorial at Cell Press.  She trained originally in cell biology, completing her PhD at the MRC...

...atypicalities, including a patient with amusia - the inability to perceive music as anything but noise. As a ...pop psychology, Musicophilia is accessible and fascinating, all without compromising on the relevant science... Tsang, Science Communications and Marketing Coordinator Non-science favorites  The Mistborn series by...even more sinister. 1000 pages long. Incredibly imaginative, funny, bittersweet, and shocking at times."     ... PhD, majored in Biochemistry or International Finance. A book club could lead to smart, sometimes contentious...

...demonstrated in different cellular environments such as retina or glioblastoma). They also found that exo-AAVs... protects them from antibody recognition and inactivation (György et al., 2014), but scientists have yet...deafness (György et al., 2017), exo-AAV2 in mouse retina after intravitreal injection to transduce bipolar...difficult to reach, and are more resistant to inactivation through anti-AAV antibodies. References György...vector mediates robust gene delivery into the murine retina upon intravitreal injection." Scientific reports...

...goals require methods to directly activate and inactivate biological processes. Chemical effectors are ...two-component systems (TCSs). TCSs consist of a histidine kinase that phosphorylates a response regulator (RR). ...from cyanobacteria to a common E. coli histidine kinase. This hybrid construct senses light, and an obligate... two-component system (TCS). A hybrid histidine kinase/photosensor senses various light inputs, and an...issue; some promoter activity persisted in the inactive state. The dynamic range, defined as the difference...

...so it’s better to start over if that happens.  Finally, if you’re seeing a weird issue and can’t figure...ladder compatible with your imaging system; or a combination of the two. There are many commercially available...SDS for your proteins to migrate…so don’t try eliminating one component entirely. If you are trying to ...bit to find a membrane, transfer, and buffer combination that works. Background If you’re seeing odd background...manufacturer. You can also consider using monoclonal or recombinant antibodies, which have much lower lot-to-lot ...point. You can also consider using polyclonal or recombinant multiclonal antibodies to increase overall signal...enough antibody binding sites Polyclonal or recombinant multiclonal antibodies Protein not properly...

...you to quickly associate your plasmids with the original publication where you described them. Search for...This publication will be listed at the top of the final plasmid pages and scientists will be asked to cite...repetitive sequences (which can be prone to recombination in bacteria) such as lentiviral, retroviral,...Verification On this page you will see a preview of the final plasmid page that will appear on Addgene’s website...available to the research community. This article was originally written by Tyler Ford in January 2016. It was...was updated by Angela Holmes and Christina Mork in February 2024.  Additional Inside Addgene Content on...

... the synthetic biology scene in 1989 through a seminal paper from Peter Schultz’s lab describing a technique...same for all three components, meaning that the final protocol may involve a sensitive balance of trade-offs...GCE4All is a great place to start. They host monthly webinars, workshops, and a bulletin board on their website...their first protocol is available now. It is for recombinant expression of phosphoserine-including proteins...Site-specific Incorporation of Phosphoserine into Recombinant Proteins in Escherichia coli. 12(21). https:/...

...washing and then incubate with Proteinase K to reverse the crosslinking. Finally, purify your DNA with a PCR...fragment size and (2)  incubate with RNAse and Proteinase K to purify the DNA and then determine concentration...isolated your antibody:protein:DNA complexes and finally (5) isolated the DNA from your antibody:protein... on Addgene.org Find plasmids encoding recombinant antibodies at Addgene ...

...their target protein is altered by blue light illumination. This ability to reversibly bind and release...tagged, which limits these approaches to use with recombinant proteins. Purifying an untagged protein with ...initiates the extracellular signaling-regulated kinase (ERK) signaling cascade. This signaling is a lot...signaling by using a fluorescent reporter for Erk kinase translocation. These results demonstrate that OptoNBs...pathway. What’s next for OptoNBs? While OptoNBs illuminate a path to light-controlled protein binding, they...

...expression and largely defines the amount of recombinant protein that will be produced. Many common promoters...Positive inducible In the OFF state, the promoter is inactive because the activator protein cannot bind. After...Negative inducible In the OFF state, the promoter is inactive because a bound repressor protein actively prevents...tetracycline-controlled transactivator) is normally inactive and cannot bind the tetracycline response elements...a reporter gene. When light is present, YFI is inactive, preventing repressor cI synthesis and allowing...

... Cysteine-less, fast split intein; N-terminal CLm and C-terminal Aes gp41-1 Split inteins A small, fast...interfaces and the freedom to test out lots of combinations, to end up finding something surprisingly useful...attB2r-SNAP-attB3 SNAP-tag Gateway entry clone to add C-terminal SNAP-tag Promega Plasmid Collection HaloTag ...PCV-Cas9, Cas9-PCV HUH-tag Cas9 plasmids with N- or C-terminal PCV2 HUH-tag; increase homology-directed repair...

...proximity with the target protein, leading to polyubiquitination of the target protein and proteasomal degradation...plasmids enable lentiviral expression of N- or C-terminally FKBP12F36V-tagged fusion chimeras or locus-specific...rapid means of comparing functionality of N- and C-terminal fusions and degradation in a cell line of interest...express ENL-FKBP12F36V and endogenous ENL was inactivated using CRISPR/Cas9 gene-editing. Featured molecules...express FKBP12F36V-MELK and endogenous MELK was inactivated using CRISPR/Cas9 gene-editing. Featured molecules...

....org  Antibody GuideRecombinant antibodies available from AddgeneBrowse our recombinant antibody plasmid...have higher reproducibility and consistency in the final product. Because the constant (non-epitope binding...reduced immunogenicity. Effector functions are eliminated, as is antibody recognition, since antibody-specific...antibody constant region. They are generated using combinatorial libraries, and high specificity has been reported...

...any type of DNA or RNA purification to avoid contamination, take extra care when performing RNA extraction...using DEPC-treated water, autoclave the water to inactivate the DEPC.  Ensure that plasticware or glassware... baked at 180°C for at least 4 hours.   If your final RNA sample(s) are resuspended in water or TE buffer...homogenization solution and phenol addition of the original no-kit protocol into one step. After homogenization...resuspended RNA sample will help ensure DNA contamination is not an issue.  References                 ...

...expressing the recombinant plasmid to propagate. Any cells that contained non-recombinant vectors (re-ligated...the number of clones that do not contain the recombinant plasmid and therefore makes the cloning process... but should never be used when selecting for recombinant plasmids. Check out our blog post on Common Lab...References 1. Bernard, P. “Positive Selection of Recombinant DNA by CcdB.” Biotechniques. 1996 Aug;21(2):320...

...more reproducible/renewable reagents, such as recombinant or hybridoma-derived monoclonal antibodies. It...solution depended on the specific antibody:target combination of interest (Figure 1). It can therefore be helpful...µg/mL (1/100). * = monoclonal antibody, ** = recombinant antibody. Figure adapted from Biddle et al., ...within the five pillars and is frequently used in combination with other approaches. If several cell lines ...correlation with other approaches when possible. Finally, correlation of -omics data can also be used in... 2019, 2021). In those studies, we used this combination to find suitable antibodies for a target with...

...every sweet or toy strewn across the floor. In the final wake it all settles down and the value of each item...of research activity and development since its inaugural year in 2012. That’s just 3 to 4 years ago. It...problems various tools are trying to solve, and finally how we might proceed in the future. When we think...for sgRNA design (by Hsu et al., 2013) used a combination of both empirical and approximate methods. The...online”, “CLI”, and “GUI”. Trends: Online tools dominate the software space but generally rely on less ... active sgRNAs for CRISPR-Cas9-mediated gene inactivation." Nature biotechnology (2014). PubMed PMID: ...

...), includes I152L in N-terminal fragment An enhanced recombinant amino-terminal acetylation system and...Biotechniques. 2006 Chang-Deng Hu Venus Improved N-terminal fragment VN155(I152L), for use with VC155 An improved...mVenus Split mVenus (aa 155), includes I152L in N-terminal fragment Constant rate of p53 tetramerization ...

...ABEs), consists of 3 components:  a deaminase (TadA, originally from E.coli, named TadA7.10 in ABE7.10...selection strategy (Gaudelli et al., 2017) in combination with a synthetic library of TadA sequences to...cause genome-wide, guide-independent off-target deamination, an important attribute for therapeutic application... JM, Lee S-J, Liquori AJ, Murray R, Packer MS, Rinaldi C, Slaymaker IM, Yen J, Young LE, Ciaramella G ...