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We narrowed to 357 results for: Cre expression vector

Showing: 261 - 280 of 357 results
  1. Recombinase-based State Machines Enable Order-dependent Logic in vivo

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    Blog Post
    ...subset of RSMs that regulate gene expression) that uniquely express selectable and/or sortable reporters...programs that specify which genes should be expressed or not expressed in each state. To help researchers adapt...register”. Each chemical input to an RSM drives expression of a distinct large serine recombinase that recognizes...system), these reactions are irreversible. Once expression of a particular recombinase is triggered, its...possible downstream states that can be achieved by expression of other recombinases. Multiple orthogonal attB-attP...present a two-input, five-state GRSM register that expresses a unique combination of red, blue, and green fluorescent...state detection with flow cytometry. However, expressing reporters will consume cellular resources and...
  2. Fluorescent Proteins 101: Monitoring Cell Mobility Using Fluorescent Proteins

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    Blog Post
    ...loxP sites such that their expression is turned on or off in cells expressing Cre. The result of a system...15 years efforts have been made to create transgenic mice expressing fluorescent protein reporter constructs...allows the visualization of fluorescent proteins expressed in the specimen.  2. Fluorescence Activated Cell...immune lineage, scientists could easily track GFP expressing cells. For example, by harvesting lymph nodes...above depicts the infiltration of neutrophils expressing LysM-GFP (green) into a draining lymph node after...useful tool for marking and tracking cells is the the Cre/lox recombination system. A researcher can flank ...respectively. The permanent labelling of cells using cre-lox is advantageous when compared to photoactivable...
  3. Transgenic Organisms, Cas9 Gene Drives, and Appropriate Safeguards

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    ...avoid accidentally creating a gene drive is also the easiest: don't use a DNA vector that encodes both ...spread exclusively through populations that already express Cas9 from an unlinked locus, while a Cas9+sgRNA...attempting to build gene drives in tropical mosquito vectors of diseases such as malaria and dengue are currently...Cas9 should be aware of the potential hazards of creating “gene drives” capable of spreading through wild...does making transgenic organisms with Cas9 risk creating a gene drive? The simplest way to make a gene ...appropriate flanking homology into a germline cell can create an RNA-guided gene drive. In principle, this event...
  4. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

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    ...using bacterial phage vectors with CRISPR/cas9 sensitizing gene cassettes. Thse vectors are engineered to ... closed RNAs seem to be conserved in mammals, expressed in neurons, and are especially abundant in neuronal...resulted in a cell migration defect. They have created a circRNA website so scientists can view public...developments. Using the Tet-on system, his lab has created a tetracycline cas9 inducible knock-out system....
  5. REPLACR Mutagenesis: Replacing In Vitro Recombination Methods

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    ...is then digested and ligated into an appropriate vector. Gibson Assembly, GeneArt Cloning, and SLIC can...of recombineering. In recombineering, bacteria express phage recombination machinery, which facilitates...products are directly transformed into bacteria expressing recombineering proteins Red/ET from a temperature-sensitive...harnesses the power of bacterial recombineering to create insertions, deletions, and substitutions - at the...
  6. "Hall of Fame" AAV Enhancers from the Allen Institute for Brain Science

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    ... promoter to drive expression of a fluorescent gene and packaged into viral vectors that can be administered...non-coding sequences of DNA that regulate gene expression by interacting with proteins such as transcription...enhancers are functional in every cell. Differential expression of transcription factors, which recognize and...mechanism that allows enhancers to regulate gene expression in a cell type-specific manner also makes them...tools for targeting those specific cell types to express exogenous genes — a feature the AIBS has capitalized...Genetic Tools Atlas. To evaluate the resulting expression of the fluorescent reporter, the brain tissue...Functional enhancer elements drive subclass-selective expression from mouse to primate neocortex. Cell Reports...
  7. Hot Plasmids: February 2026

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    Blog Post
    ... Figure 1: SIM images of live COS-7 cells expressing Lifeact fused to mScarlet3-S2, mScarlet3-M163H...Rego Reliably achieving high yields for your viral vector preps can be a challenge. You probably know yield...these higher-yielding plasmids for our AAV Viral Vector Service, and you can use them in your lab too! ...and did not alter cell viability or global gene expression in tests. It's about Time we had a tool like ...positives in screening data. Increasing the quality of data coming from the genome-wide screens will likewise...Julianna libraries aim to increase the quality of data you can get from your CRISPR screen (Figure 5). First,...Meanwhile, the Xu Lab devised a mutagenesis and screening strategy to select photostable variants, resulting...
  8. Antibodies 101: Introduction to Antibodies

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    Blog Post
    ...stability. Additionally, the choice of vector can impact the expression level of an antibody (Ayyar et al....such as parasites or microbes, or to proteins expressed on the surface of cells that have been infected...the protein out of solution, or isolate cells expressing this protein. Read on to learn more about antibodies...context of the immune system, each isotype is expressed at different times of the immune response and ...qualitative and quantitative measurement of protein expression in cell lysates, whole cells, or tissue samples...frequently used to compare relative levels of protein expression between cell types or treatment conditions. They....    Figure 4: Western blot showing GFP expression in cells that have been transfected with a plasmid...
  9. Mammalian RNAi Tools

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    ...constitutive expression as well as those that allow for conditional (Cre-lox) or inducible (Tet) expression are...shRNAs are often delivered using viral vectors. Lentiviral vectors are a preferred method for long-term ...Plasmid Vector Type PI Publication Additional Resources Addgene Resources pLKO.1 cloning vector protocol...interference. Created with BioRender.com. shRNA Plasmids Browse our selection of empty vectors for cloning...Addgene; browse by constitutive lentiviral shRNA, cre-regulated lentiviral shRNA, and more. Plasmid...long-term gene silencing. Once the viral vector is taken up by a host, the viral genome is transcribed, producing...Lentiviral packaging plasmids Web Resources Trono Lab Lentivectors Toolbox Optimized shRNA design in pSico with...
  10. No Llamas Required - Synthetic Nanobodies Against Membrane Proteins

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    ...the phage display screens are subcloned (using FX cloning) into the expression vector pSb-Init, which attaches...their small size, nanobodies can be synthetically expressed off of plasmids in bacteria, and they can target...sybodies can be subcloned into pBXNPH3 or pBXNPHM3 expression plasmids for the production of tag-free proteins...to, like ones that are hidden in the molecular crevices proteins on the cell surface. Figure 1: ...threonines at positions that can be randomized for creating the libraries (Zimmermann et al., 2018). Find ...protein (sybody), ribosome, and mRNA. During the screening process, displayed sybodies that bind to the biotinylated...the candidate sybodies in their coat protein to screen for binding to the target protein. The protocol...
  11. Addgene's Cancer Collection Pages Connect the Research Community

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    Blog Post
    ...consist of a group of genes/proteins that, when expressed, normally encourage cell survival, growth and ...Clone Collection 2.0. The collection is a set of vectors for use with the Gateway Cloning Platform (Life... is that it enables the simple construction of vectors to study the function of any of these genes through...as 30% of all cancers, especially those of the pancreas and colon. Despite the prevalence of Ras mutations...he or she can use to study it (as seen in the screenshot below). Currently, the page includes interactive... Tackling Cancers' Drug Resistance with a New Screening Kit Learn How the Clon Tracer Library Can Be Used...
  12. Antibody Validation for Flow Cytometry

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    ...flow cytometry, and mRNA expression.   If your protein of interest is expressed at similar levels in ...useful to produce a sample with mixed expression, with the expression measurable through an epitope tag such... sets, you can increase confidence that the labeling observed represents the expression level of the target...epitopes. Detection of overexpressed (tagged or untagged) protein When expression plasmids are available...differences between endogenous expression and transfected overexpression, this approach cannot confirm ...caused by overexpression. Additionally, if the cell line used has endogenous levels of expression, this can...preferred. The overexpression approach is therefore best suited to cell lines without any expression of the target...
  13. Treating Muscular Dystrophy with CRISPR Gene Editing

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    Blog Post
    ...that the percentage of dystrophin-expressing muscle cells increases over time, and all three groups confirm...myoblasts; when injected into DMD mice, these cells expressed functional dystrophin. Editing genes in vivo is..., the CRISPR components would only need to be expressed for a short period of time, which would prevent...confirm dystrophin expression via Western blot, at <10% of the wild-type level. Muscle histology is improved...stem cells 2. Remove any immunogenicity of the AAV vector Once delivery has been optimized, it’s important... reduce off-target editing. Short-term CRISPR expression would be especially desirable, as it would reduce... genome editing partially restores dystrophin expression in a mouse model of muscular dystrophy. Science...
  14. Optogenetics Plasmid Collection

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    ...These proteins can be expressed in specific neurons, often utilizing viral expression systems, to activate...Insert Vector Type Promoter PI Return to top Additional Resources Optogenetics Guide Viral Vector Packaging...identified to increase the spectral and kinetic properties as well as improve the expression and membrane...fluorescent protein to the opsin in order to track its expression and localization. Many other types of proteins...inhibition. For example, search for "ChR mCherry", "Cre inhibition", or other terms. Looking for viral preps...optogenetics plasmids. ID Plasmid Description Gene/Insert Vector Type Promoter Eligible for Viral Packaging PI Return...
  15. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    ...marvel of DNA compaction, an enhancer can increase the expression of a gene that is millions of base pairs...genome math expression for NANOG enhancers, we’re ready for step 2: design a CRISPR screen to disrupt ...CRISPR screen. We start by infecting millions of embryonic stem cells (ESCs) with a lentiviral vector, an...Putting it all together, we get the following expression for step 1: (H3K4me1 + H3K27ac) – H3K4me3 The...stem cells, and conclude with a targeted CRISPR screen that can disrupt these enhancers. A real-world ...that have NANOG binding sites 2. Design a CRISPR screen to target and disrupt the NANOG enhancers 3. CRISPR...you’re interested in designing your own CRISPR screens for enhancers, check out the Appendix. Conclusion...
  16. Cpf1: A New Tool for CRISPR Genome Editing

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    ...deliver in low-capacity vectors, such as adeno-associated viral (AAV) vectors. In 2017, Zetsche et al....multiplexing approach using a single crRNA array to express up to 4 crRNAs. Zetsche et al. also suggest that...PAM site, Cpf1 cleaves in a staggered fashion, creating a 5 nucleotide 5’ overhang 18-23 bases away from...mediated editing, as Kleinstiver et al. saw no decrease in Cpf1 activity with 4-6 base deletions at the...
  17. Recombinases AAV Preps

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    ...Viral Vector Packaging Service AAV Recombinases Viral Vector Packaging Service: Recombinases Cre AAV Dre...recombinases, which can be used to control gene expression. See our Cre-lox Plasmids page for more information ...Deisseroth 55636 pAAV-EF1a-Cre EF1a none 11, rg* Karl Deisseroth 121675 pAAV-EF1a-fDIO-Cre EF1a none 1, 5, 8, ...pAAV.CMV.HI.eGFP-Cre.WPRE.SV40 CMV eGFP 1, 2, 5, 8, 9 James M. Wilson 55632 pAAV-Ef1a-mCherry-IRES-Cre EF1a mCherry... Cepko 69916 pAAV.cTNT.iCre cTnT tdTomato 9 William Pu 203842 pAAV-Ef1a-fDIO-eGFP-2A-Cre-WPRE EF1a EGFP...Spiegel 105550 pAAV.GFAP.Cre.WPRE.hGH GFAP none 5, PHPeB James M. Wilson 196410 AAV-GfaABC1D-Cre-4x6T GfaABC1D...Jonathan Ting 107788 AAV.rTH.PI.Cre.SV40 rTH none 9, rg* James M. Wilson 24593 AAV-pgk-Cre PGK none rg* Patrick...
  18. Hot Plasmids: Summer 2024

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    ...al., 2024). In MagIC-cryo-EM, target proteins (expressed as a GFP fusion in this proof-of-concept study...than SpyCas9, allowing them to be packaged in AAV vectors, potentially with multiplexed targets.   ...showed that AAV-delivered CHARM could silence the expression of prion protein in mouse brains for at least...gene product; it simply turns the target protein expression off. Plus, DNA methylation is a long-lasting ...-silencing CHARM variants that stop their own expression after silencing their target — potentially improving...by targeting marker proteins that are uniquely expressed in a given cell type. For example, glial fibrillary...GFAP) is a glia-specific intermediate filament expressed in astrocytes throughout the brain, making it ...
  19. Deisseroth INTRSECT Collection

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    ...cells expressing Cre AND Flp, here expressed through a double transgenic animal strategy (PV-2a-Cre; SOM-IRES-Flp...only Cre AND Flp, Cre NOT Flp, or Flp NOT Cre. B) This strategy has been expanded to incorporate VCre in...EYFP Cre AND Flp Yes 231926 pAAV-Ef1a-Con/Fon-EYFP Cre AND Flp No 55651 pAAV-hSyn Con/Foff EYFP Cre AND...AND NOT Cre Yes 137129 pAAV-Ef1a-Con/Fon-BFP Cre AND Flp Yes 137130 pAAV-Ef1a-Con/Foff 2.0-BFP Cre AND NOT.../Von-EYFP Cre AND Flp AND Vcre Yes 137165 pAAV-Ef1a-Con/Fon/Von-GCaMP6M Cre AND Flp AND Vcre No References...intersectional expression plasmids that combine multiplexed recombinases, including Cre, Flp, and VCre to enable...Intersectional expression approaches combine multiplexed recombinases, including Cre, Flp, and VCre to enable...
  20. Worm Expression Resources

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    ... empty backbones, fluorescent proteins, and Cre expression plasmids. Large collections or kits are described...General Tools Fire Lab C. elegans Vector Kit - Andrew Fire Lab. A set of vectors for C. elegans research, including...and spatial control of gene expression in C. elegans by combining expression of the FLP recombinase from...can knock down genes by feeding worms bacteria expressing dsRNA or use CRISPR/Cas9 gene editing to easily...developed and characterized which allow researchers to express desired constructs in precise cell types and/or...ID Plasmid Description Gene/Insert PI Plasmids Expressing Worm Genes/Inserts The table below lists plasmids...plasmids intended for use together (e.g. cloning and expression systems) and therefore supplied as one item. ...
Showing: 261 - 280 of 357 results