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We narrowed to 170 results for: cas9 expression plasmid

Showing: 121 - 140 of 170 results

  1. Hot Plasmids June 2018 - Reverse transcriptase, nanobody, and protein-DNA interaction tools

    Type
    Blog Post
    Published
    June 27, 2018, 1:16 p.m.
    ...these lentiviral plasmids, catalytically inactive Cas9 (dSpyCas9) fused to APEX2 is expressed from a Tet/Shield1...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These articles ...recent plasmid deposits and we hope they'll make it easier for you to find and use the plasmids you need...write about a recent plasmid deposit please sign up here. Listen to the Hot Plasmids Podcast!  MarathonRT...at Yale University recently deposited a plasmid for expressing a novel reverse transcriptase (RT), MarathonRT...sequence of interest with an sgRNA expressed from a separate plasmid. When cells are treated with biotin–phenol...polymerase processivity. Please find the MarathonRT plasmid here! Zhao C, et al. RNA. 2018 PubMed PMID:29109157...

  2. Important Considerations When Using AAVs

    Type
    Blog Post
    Published
    June 13, 2017, 2:30 p.m.
    ... have found that expression occurs quickly and results in long and stable expression (up to 9 months in...the onset of gene expression. However, it has yet to be determined what gene expression looks like at 3 ...Versatile Viral Tool for Gene Expression in Mammals A Match Made in Heaven: CRISPR/Cas9 and AAV Viral Vector Elements...AAV2 can transduce many tissue types, it has low expression in several brain regions where other serotypes... under study. Many AAVs will show significant expression in a variety of cell types, but you should try...transport desirable or not desirable? If diffuse gene expression is tolerated, then axonal transport is fine and... using a specific system for controlling gene expression such as Cre-lox, may be sufficient to overcome...

  3. Synthetic Photobiology: Optogenetics for E. coli

    Type
    Blog Post
    Published
    Sept. 8, 2015, 2:30 p.m.
    ...proteins, including Cas9 and dCas9-transcription factors, for which low expression levels are optimal....Find the plasmids from this publication at Addgene. Multichromatic control of gene expression in Escherichia...these two systems can be coexpressed for sophisticated control of gene expression. An E. coli light-sensitive... by Tabor’s lab, making light-controlled gene expression in E. coli easier and more robust. Synthetic...engineer new pathways with sophisticated gene expression controls. Most cell types do not respond to low-intensity...light-responsive system is spread across three plasmids, with the response regulator encoded in the genome...et al. condensed the system to two streamlined plasmids. The utility of these TCSs was limited by a few...

  4. Typing CRISPR Systems

    Type
    Blog Post
    Published
    March 18, 2025, 1:15 p.m.
    ...–C, with the beloved SpCas9 (from Streptococcus pyogenes) belonging in II-A. Cas9 was the first to be ...first time. The discovery and application of CRISPR-Cas9 kicked off over a decade of frenzied interest in...while Class 2 use single protein Cas effectors, like Cas9. The Cascade complex doesn’t usually carry out the... you need to ensure every unit of the complex expresses at similar levels. It was only recently that researchers... researchers began building optimal plasmids to harness the power of Class 1 systems. Class 1 CRISPR systems...Lastly, type IV systems are most often found on plasmids. The many unique features of IV-A and IV-B have...led to the hypotheses that they are involved in plasmid competition or can hijack machinery from other ...

  5. Rewiring Metabolic Circuitry with CRISPR RNA Scaffolds [Video]

    Type
    Blog Post
    Published
    April 7, 2015, 4:21 p.m.
    ...), 339-350 (2015). PubMed. Find the Plasmids @Addgene: Plasmids for CRISPRi are described here: http...modulate dCas9 expression, multiple scRNA transcriptional programs can be regulated with dCas9 as a master...) model consists of a catalytically dead Cas9 protein (dCas9) that lacks endonuclease activity coupled...gene expression. This strategy can be applied to effectively change metabolic flux. The dCas9 protein...recruit a transcriptional regulator to modulate expression at that locus. The use of regulators allows a... a greater degree of control of desired expression levels dependent upon the type of transcriptional regulator...constructs to be introduced simultaneously in a single plasmid. The functionality of the RNA scaffolds follows...

  6. Multiplexed Capture of Promoter-enhancer 3D Chromatin Structures Using CRISPR

    Type
    Blog Post
    Published
    July 2, 2020, 12:40 p.m.
    ...biotin ligases Expression system Stable cell line expressing 1) FLAG-biotin-tagged dCas9, 2) BirA, and ...components are co-expressed, the gRNA targets the dCas9 to the loci of interest and dCas9 is biotinylated...creation of a stable cell line that co-expresses three components: dCas9 with an added biotin acceptor site...cell lines will have varying levels of dCas9 and gRNA expression. Additionally, CAPTURE 3C-based sequencing...that is recognized by biotin ligases normally expressed in eukaryotic cells. Using this tag reduces the...CAPTURE 2.0 to be used with primary cells. Find plasmids for CAPTURE 2.0! When compared to the original...conformation data is compared with changes in gene expression, chromatin accessibility, and epigenetic modifications...

  7. Hot Plasmids and Viral Preps - September 2021

    Type
    Blog Post
    Published
    Sept. 21, 2021, 1:15 p.m.
    ...subset of the new plasmids and viral preps in the repository through our hot plasmids articles. These articles...recent plasmid deposits and we hope they'll make it easier for you to find and use the plasmids you need...of robust expression of high G+C content genes, as validated through monitoring the expression of fluorescent...without end-point sequencing assays. These plasmids use “Cas9-mediated adenosine transient reporter for... CRISPR plasmids are always being added to the repository. To find all of the CRISPR plasmids available... Xiao Wang Lab has recently deposited a set of plasmids that helps identify base edited cell populations... be seen through the success of the change in expression of GFP, for the stop codon should have changed...

  8. CRISPR Cheat Sheet

    Type
    Blog Post
    Published
    Jan. 27, 2021, 2 p.m.
    ...RNA sequences. Cas9 is a very commonly used CRISPR nuclease. Note: Most CRISPR plasmids from Addgene ...that can’t cut DNA (dCas9, for example) that are used to increase or decrease expression of a gene. Screen... to deliver. Not all cells efficiently take up plasmids used to produce CRISPR systems    ...

  9. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...cargo via Cas9-directed integrases.   Use PASTE can be delivered via a single dose of plasmids, works...bacterial genome, and inserted it into E. coli to express and then test for any proteins that could cut RNA..., when they looked at the transformed E. coli expressing Cas7-11, they found no evidence of growth inhibition...PASTEsystem involves insertion of landing sites via Cas9-directed reverse transcriptases, followed bylanding...adenovirus templates. The system, which is larger than Cas9, can also be used with mRNA and a synthetic guide...

  10. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...editors use either catalytically dead Cas9 (dCas9) or a Cas9 nickase (nCas9) to avoid introducing double-strand...need from Cas9 are sequence specificity and the R-loop structure. In order to bind DNA, Cas9 requires ...non-target strand of DNA for Cas9 to bind.   R-loop The structure formed by Cas9 binding to DNA and separating...CRISPR 101: Cas9 Structural Biology Additional resources on Addgene.org Browse CRISPR plasmids for base...PAM) on the opposite strand. Once it finds a PAM, Cas9 unwinds the adjacent DNA to create a region of separate...single-stranded DNA (ssDNA) region, using enzymes fused to Cas9 to alter the exposed ssDNA bases. Thus, base editors...window restricted to the stretch of ssDNA created by Cas9 binding. Pro tip! In CRISPR, the non-target strand...

  11. Making CRISPR Plasmids Using Fragmid

    Type
    Blog Post
    Published
    Aug. 29, 2024, 1:15 p.m.
    ...restriction digest, and then plasmid sequencing if you can. To quote Doench, “Whole plasmid sequencing is just ...correctly banded clones for plasmid sequencing and found 98% of the plasmids were perfectly correct. Because...pRDA_757 (Piggybac; constitutive expression) Mammalian Plasmid pRDA_791 (contains only orio and...depending on above selections.) CRISPR enzyme (Cas9 [sp], Cas9 [other], Cas12a, RNA-targeting) CRISPR mechanism...the assembled plasmid. It shows you each component, with the ID of the component plasmid, component name...the component plasmids on the Addgene website. Step 4: Naming your assembled plasmid and generating...resources from Addgene Plasmids 101: Modular Cloning Addgene's CRISPR Guide Plasmids 101: Golden Gate Cloning...

  12. Plasmid-based Recombinant Monoclonal Antibodies: What They Are and Why You Should Be Excited About Them

    Type
    Blog Post
    Published
    May 4, 2021, 1:15 p.m.
    ...of interest has been cloned into an expression plasmid, the plasmid can be introduced into host cells, ...using synthetic genes that are typically expressed from a plasmid or from an integrated sequence in a stable...that the plasmids and sequences for antibodies are not shared. For instance, through open plasmid sharing...hundreds of useful variants of Cas9. By providing access to the plasmids encoding antibodies, scientists...Bradbury et al., 2018). Hybridomas can lose gene expression of the mAb-encoding genes or fail to revive after...Recombinant monoclonal antibodies are encoded in plasmids and produce a single antibody recognizing one ...heavy chain genes of the antibody are encoded in a plasmid. (Right) An assembled antibody protein binds an...

  13. Lentiviral Vector Uses and Overview

    Type
    Blog Post
    Published
    May 19, 2016, 2:30 p.m.
    ...consisted of three plasmids: the packaging, envelope, and transfer plasmids. The packaging plasmid carried a mutated... packaging and envelope plasmids are two of Addgene’s most requested plasmids! Lentiviral particles with... make stable transgene-expressing or knockout cell lines. Many CRISPR plasmids are designed for lentiviral... of Addgene’s most requested plasmids are used with lentiviral expression systems. If you’re new to the...into the genome, permitting long-term transgene expression, but they could only infect actively dividing...non-dividing cells, but without sustained transgene expression. To design a viral vector system that could do...itself due to a few missing proteins. The envelope plasmid contained a viral envelope to dictate the tropism...

  14. Teaching an Old DOG New Tricks: Controlling Protein Activity with GFP

    Type
    Blog Post
    Published
    Nov. 24, 2015, 3:30 p.m.
    ...mouse retina. GFP expression robustly activated the reporter gene TdTomato, whose expression was absent without...reporter expression was induced in ~76% of GFP+ cells, and 100% of DsRed+ cells also expressed GFP. Using.... Cepko lab researcher Jonathan Tang wanted to express a variety of proteins in single cell types in the... could use previously established mouse lines expressing GFP in specific cell types to do more than just...cells. If GFP could be co-opted to control gene expression, he could then selectively manipulate only GFP-labeled...and rTetR systems such that they activate gene expression from different promoters. Moving to an in vivo...56-93%. In the converse test, 98% of TdTomato expressing cells were GFP+, indicating a robust, but specific...

  15. Hot Plasmids - December 2019 - CRISPR pooled library, LipoGlo, CRISPRa, and Voltage Imaging Tools

    Type
    Blog Post
    Published
    Dec. 10, 2019, 1:58 p.m.
    ...highlight a subset of the new plasmids in the repository through our hot plasmids articles. These articles ...recent plasmid deposits and we hope they'll make it easier for you to find and use the plasmids you need... 2 (Th2) cells from mice that constitutively express Cas9 and screen for genes that affect Th2 differentiation...need. If you'd ever like to write about a recent plasmid deposit please sign up here.        A retroviral...differentiation and activation, using expression of differentiation factors as the screen readout. This retroviral...treatment of cardiovascular disease. Find the LipoGlo plasmids at Addgene! Lawler et al, QJM: An International...promoter systems. Find these CRISPR activation plasmids at Addgene. Liu et al., Nature Communications,...

  16. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    Published
    July 11, 2017, 2:30 p.m.
    ...screens Differentially expressed genes  As the costs for global gene expression analyses like RNAseq are...test which of the differentially expressed genes found in a gene expression dataset are causal for a phenotype...differentially expressed genes that are known drug targets, or all differentially expressed genes that code...sequencing to identify which gRNAs are differentially expressed in the separate groups and, as a consequence, ...CRISPR screens designed to target differentially expressed genes can be the next stage in making sense of...interactions to a large extent involve receptors expressed on the cell surface. Thus, a screen can be used...activity and minimize off-target effects of CRISPR-Cas9." Nature biotechnology 34.2 (2016): 184-191. PubMed...

  17. Tips for arabidopsis transformation

    Type
    Blog Post
    Published
    Oct. 25, 2018, 1:23 p.m.
    ...plant plasmid resources at Addgene  Choosing an expression system Choosing an appropriate expression vector....org Find plant plasmids Visit our plant resource page Deposit arabidopsis plasmids with Addgene ...this method include: Cloning and transforming a plasmid into the bacterium Agrobacterium tumeficans - a...options, but here are a couple of my favorites. Plasmids from the Tsuyoshi Nakagawa lab are binary gateway...prefer Golden Gate assembly, there are a series of plasmids from the Dinneny lab that additionally allow for...for visual selection of transformants based on expression of RFP in the seed (Emami, Yee and Dinneny, 2013...culture you are growing definitely contains your plasmid. Grow lots of Agrobacterium: The more agrobacterium...

  18. Fluorescent Protein Travel Awards - FLiPs and Fluorescent Protein Biosensors

    Type
    Blog Post
    Published
    July 27, 2017, 1:11 p.m.
    ...lactose released activates expression of GFP from the lac operon. GFP expression can then be used to determine...fantastic tools it’s now easy to monitor protein expression, localization, and protein-protein interactions... Intersectin, Cdc42, Raf1, Mek1, Mek2, Cdk5, and Cas9. Xin has demonstrated the utility of these FLiPs...Addgene.org Find Fluorescent Protein Biosensors Browse Plasmids from the Tsien Lab Browse the Michael Davidson...

  19. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

    Type
    Blog Post
    Published
    April 24, 2015, 2:39 p.m.
    ...CRISPR-Cas9 genome editing may be the hot new way to manipulate gene expression, but other gene manipulation...recombination, RFP is expressed. Cre can mediate one of two deletions to allow YFP or M-CFP expression; these deletions...research? Check out Brainbow plasmids available from Addgene! Find Brainbow Plasmids @Addgene: Brainbow 1.0...1.0, 1.1, 2.1 plasmids Brainbow 3.0, 3.1, 3.2 plasmids References: Transgenic strategies for combinatorial...ways to spatially and temporally control gene expression, especially in in vivo models, and new Cre-lox... of Cre-lox. Check out our previous blog post, Plasmids 101: Cre-lox, if you need a quick primer on how...fluorescent protein in the construct, OFP (orange), is expressed when Cre is absent; stochastic Cre excision results...

  20. Quick Guide to All Things Lentivirus

    Type
    Blog Post
    Published
    March 21, 2017, 2:30 p.m.
    ...genome and stable expression of the transgene   Transfer plasmids The transfer plasmid is the vector you...virus (MoMLV) and consisted of two plasmids: the packaging plasmid containing all the structural genes...crossover event between the vector plasmid and the packaging plasmid caused the Psi sequence to be placed... facilitates nuclear export) is expressed from a separate plasmid, and the promoter of the 5’LTR has been...(tTA, also expressed by your transfer vector) binds to the TRE and activates the expression of your gene...usually 293T cells, with your transfer plasmid and your packaging plasmids. For this, you can use the transfection...vectors fantastic options for delivering shRNA, CRISPR/Cas9 components, and fluorescent sensors. Retroviral...
Showing: 121 - 140 of 170 results