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We narrowed to 102 results for: cas9 expression construct

Showing: 41 - 60 of 102 results
  1. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

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    ...Brainbow-2.1 construct can express one of four colors (n-GFP, RFP, YFP or M-CFP.) The construct contains ...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...first fluorescent protein in the construct, OFP (orange), is expressed when Cre is absent; stochastic Cre...the construct. Sanes and Lichtman used pronuclear injection to insert these Brainbow constructs into...” state; for example, Brainbow-1.0 expresses RFP when the construct has not undergone recombination. This...the number and type of cells in which the construct is expressed. The photostability of Brainbow-3.2 is ...
  2. Lentiviral CRISPR Libraries Enable Genome-Scale, Knockout Screening

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    ...have previously been stably transfected for Cas9 expression. The Yusa lab has used their library to screen...It’s clear that CRISPR-Cas9 technology has really changed the game for anyone looking to quickly and ...Lander library uses sequential infection first of Cas9, then with the sgRNAs, and can result in a higher...application offer proof-of-principle that CRISPR-Cas9 can be used to target any sequence in the genome...library within cells and aimed for 300 cells per construct, but in some biological systems one “might need... Genetic Screens in Human Cells Using the CRISPR/Cas9 System. Wang T, Wei JJ, Sabatini DM, Lander ES. ...Science. 2013 Dec 12. (PubMed). Genome-Scale CRISPR-Cas9 Knockout Screening in Human Cells. Shalem O, Sanjana...
  3. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

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    ... out the plasmids at Addgene: pAdSh.PGK.Cas9 (expresses S. pyogenes Cas9 from the PGK promoter) and U6...target cells. Within target cells, Cas9 machinery is transiently expressed and binds to target DNA. In the...capacity is large enough to carry the Cas9 gene and a gRNA expression cassette in one single viral particle...DNA Adenoviral CRISPR/Cas9 genome editing tools can also be used to deliver Cas9 and DNA templates in ... CRISPR/Cas9 research! To find more information about the adenoviral delivery of CRISPRS/Cas9 using the...promoter-driven guide RNA constructs, pAdSh.U6.gRNAS1 and pAdSh.U6.gRNAGFP, and also Adeno Cas9 and Adeno EA. Or...Genome Editing of Pten by CRISPR/Cas9 in Mouse Liver in Spite of Cas9-Specific Immune Responses. Human...
  4. Targeting HIV-1 with CRISPR: Shock and Kill or Cut it Out?

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    ...or apoptosis with Cas9/gRNA expression. A pooled analysis found no evidence of Cas9 cleavage at predicted...promoter-driven GFP expression. In cell lines that can produce HIV-1 toxic proteins, CRISPR/Cas9 SAM caused apoptosis...target the HIV-1 5’ and 3’ LTRs and expressed them along with Cas9 in the T-cell line 2D10. PCR amplification...portion of the LTRs joined together. Clonal Cas9/gRNA-expressing cell populations were also immune to HIV...with HIV-1. For two HIV-1 strains, Cas9/gRNA lentiviral expression significantly reduced the HIV-1 copy...preventing re-infection would require sustained expression of Cas9/gRNAs, which could result in higher rates...were located near the Cas9 cut site, leading Wang et al. to conclude that some Cas9-derived indels may not...
  5. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    ...Selection for cells stably and highly expressing these constructs can be achieved by fluorescence-activated cell...sorting, and stable gRNA expression can be achieved using lentiviral backbones expressing blasticidin or puromycin...several great options: pLV hUbC-dCas9-T2A-GFP for removable dCas9 expression and pLM-CMV-R-Cre. Selection...and gene expression (Sapozhnikov and Szyf 2021).    Figure 3: A simpler approach - dCas9 blocks ...especially 3’ of PAM) might work too.  High dCas9 and gRNA expression are key for complete DNA demethylation...balance these needs is the lentiviral-based expression of floxed dCas9 so that it may later be excised by Cre...could be affected, leading to unpredicted gene expression changes (Sapozhnikov and Szyf 2021, Charlton ...
  6. Important Considerations When Using AAVs

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    ... 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 ...To decrease the time until expression, it is possible to use AAV constructs with self-complementing structure...Versatile Viral Tool for Gene Expression in Mammals A Match Made in Heaven: CRISPR/Cas9 and AAV Viral Vector Elements...AAV vectors to deliver chemogenetic/optogenetic constructs into our cells of interest. Although they have...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...
  7. CRISPR References and Information

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    ...sites for S. pyogenes Cas9, S. aureus Cas9, S. thermophilus Cas9, N. meningitidis Cas9, or Cas12a from your...vectors using ssDNA oligos p201G Cas9 ; p201B Cas9 ; p201H Cas9 ; p201N Cas9 ; pUC gRNA Shuttle PDF, 500 KB...CRISPR RNA array: Cas9 (pX260) or Cas9 D10A (pX334) ; tracrRNA: Cas9 (pX330) or Cas9 D10A (pX335) PDF,...and selection for Cas9-triggered homologous recombination Cas9-sgRNA target construct ; pMA122 (negative...FLAG tagged dCas9 PDF, 110 KB Goldstein Nematode: gRNA design and cloning Cas9-sgRNA construct PDF, 364 ...118 KB Church gRNA design and cloning for Cas9 orthologs Cas9 plasmids PDF, 107 KB Chen and Wente Zebrafish...vitro transcription, injection gRNA core ; Cas9 ; optimized Cas9 PDF, 66.8 KB Fujii gRNA design and cloning...
  8. New Optimized Genome-wide CRISPRko, CRISPRi, and CRISPRa Libraries

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    ...combining specific sgRNAs with Cas9 or Cas9 derivatives. Unmodified Cas9 causes double stranded DNA breaks...with the sgRNA expression vector allowing the screen to be conducted with only two constructs (the other ... loss of function while nuclease-deactivated Cas9 (dCas9) can be tethered to a repressor (CRISPRi) or ...sgRNA library In addition to inhibiting gene expression, dCas9 can also be used for transcriptional activation... activation domain (CRISPRa) to regulate gene expression. Some CRISPR libraries contain many sgRNAs per... issues. CRISPRi libraries utilize an engineered Cas9, which contains multiple point mutations in the ...screens can help reveal the function of lowly expressed genes or genes that are more drastically affected...
  9. CRISPR-mediated Plant Base Editors

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    ...by tethering cytosine deaminase with Cas9 nickase (nCas9). nCas9 creates a nick in the DNA by cutting ...Nickase Cas9 (D10A) Deaminase PAM requirements Reference CBE SpCas9 rAPOBEC1 NGG 6 SpCas9 Target-AID (PmCDA1...platforms. Hua et al. constructed a number of plant base editors replacing the SpCas9 with the mutant versions...A>G or T>C mutations in the plant genome. We constructed three versions of the vector (pKABE6.3, pKABE7.9...scaffold) in a pol-III (OsU3) promoter driven expression system. We use a single polycistronic tRNA-gRNA...Agrobacterium-mediated transformation. We also constructed smaller vectors suitable for transient assays...Bastian Minkenberg, and Yinong Yang. "Boosting CRISPR/Cas9 multiplex editing capability with the endogenous...
  10. The 10 Most Distributed Plasmid Technologies in Addgene's First 10 Years

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    ...lentiviral constructs. In 2007 we continued to see requests grow for lentiviral packaging and expression vectors...increase in popularity of empty backbones for shRNA expression, such as pLKO.1 puro and pLKO.1 – TRC cloning...empty backbones such as pBABE-puro for retroviral expression and pLVTHM, a lentiviral plasmid for mammalian...technology of the year in our collection. CRISPR/Cas9 - At Addgene, 2013 will be known as the "Year of.... So far, we have distributed over 10,000 CRISPR/Cas9 plasmids to more than 3,000 labs around the world...
  11. Hot Plasmids and Viral Preps - January 2021

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    ...control expression of their genes of interest. While recombinases are powerful gene expression tools in...inducible Cre for precise control of bacterial gene expression By Meghan Rego Recombinases are enzymes that ...conformational changes in a protein.    Cells expressing an RFP reporter plasmid for recombinase activity... ~70kDa, with a molecular weight roughly half of Cas9 or Cas12a. This is in part due to the fact that ...large heterogeneous cultures.  HeLa cells expressed a fusion of keratin with mGold (top) and mVenus...SPOTlight was used to image over 3 million cell types expressing variants of Yellow Fluorescent Protein (YFP)....CRISPR Plasmids and Resources page.  CDDR (CRISPR–Cas9-based Dual-fluorescent DSB Repair) is a double-strand...
  12. dTAG - You're it!

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    ...lentiviral expression platform, to assess selective degradation of FKBP12F36V-BRD4 using CRISPR/Cas9-mediated...engineered to express ENL-FKBP12F36V and endogenous ENL was inactivated using CRISPR/Cas9 gene-editing....engineered to express FKBP12F36V-MELK and endogenous MELK was inactivated using CRISPR/Cas9 gene-editing... Cell lines were engineered to express YY1-FKBP12F36V using CRISPR/Cas9-mediated knock-in. Featured molecule...molecule FKBP12F36V degraders (dTAG molecule) and expression of FKBP12F36V-tagged proteins. The dTAG molecule...from Addgene. These plasmids enable lentiviral expression of N- or C-terminally FKBP12F36V-tagged fusion...detailed information on cloning procedures used to construct the deposited plasmids. Molecules: We synthesized...
  13. Harnessing TnpB for Genome Editing: A Compact and Versatile Tool for Your Research

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    ...like Cas9. This is where TnpB offers a clear advantage. At approximately one-third the size of Cas9 or ...nuclease could help keep the total construct size smaller than Cas9 alone. In our recent study, we demonstrated... most well-known CRISPR-associated nucleases are Cas9 and Cas12a, the heavyweights in the genome editing...amino acids in size. To give a visual analogy: if Cas9 or Cas12a is a soccer ball, TnpB is a baseball —...genome editing, and two of our top-performing constructs are now available through Addgene (pKb-TnpB1 ...ancestors of Cas12 proteins. Functionally, while Cas9 contains two nuclease domains (HNH and RuvC-like...with a single RuvC-like domain. In simple terms, Cas9 cuts DNA using two "scissors" (one for each strand...
  14. Hot Plasmids - October 2020

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    ...Applications (CHyMErA) Knockout Libraries express hybrid Cas9-Cas12a gRNAs under a single U6 promoter. ...Figure 1:Schematic diagram of different FingR constructs and experimental results. Image from Bensussen...Bensussen et al., 2020. The FingR constructs target the synaptic scaffolding proteins PSD95 and gephyrin...excitatory and inhibitory synapses, respectively. Once expressed in the neuron, the FingRs bind to the endogenous...other regions of the cell. By combining vectors expressing different fluorescent proteins targeting inhibitory.... The team engineered C. elegans cell lines to express wrmScarlet1-10 unattached to any other cellular...proliferation in acute myeloid leukemia and saw that expression of H2B-FT consistently predicted the cell cycle...
  15. Lentiviral Prep Service

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    ... 52962 lentiCas9-Blast Sp Cas9 Cut Blasticidin Expresses human codon-optimized S. pyogenes Cas9 protein...backbone. Zhang Cas9 and Accessories for Activating Gene Expression Catalytically-dead Cas9 (dCas9) can be fused...Root Cas9 Lentivirus Cas9 viruses can be used to interrogate the genome in a variety of ways. Cas9 proteins...plasmids resource page . Cas9 for Editing Genomic Sequences To perform genome edits, Cas9 nuclease is used to...Resistance Activity PI 61422 dCAS9-VP64_GFP dCAS9 (D10A, H840A) none Expresses dCAS9-VP64 activator with 2A ...Addgene's viral vector packaging service. Browse constructs currently available in lentiviral format. Viral...Browse In-Stock Lentivirus Pooled CRISPR Libraries Cas9 Pooled Barcoding Libraries Control Addgene's lentiviruses...
  16. Fluorescent Tagging of Endogenous Genes with SapTrap

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    ...co-injection of the targeting vector and a Cas9 expression plasmid will insert the desired genetic tag...are then mixed and transfected along with a Cas9 expression vector. They can also be introduced directly...directly into a Drosophila S2 cell line stably expressing Cas9. This PCR toolkit offers C- and N-terminal tagging...directed repair after a CRISPR/Cas9 induced break. Learn more about these constructs and the cell lines they’...this system lies in the ability of the endonuclease Cas9 to create a DNA double stranded break (DSB) at a...accepts the sgRNA target sequence for U6 promoter expression and the second site accepts the homology arm ... template for inducible alteration of protein expression levels. CRISPR tagging systems offer users an...
  17. Tips for arabidopsis transformation

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    ... at Addgene  Choosing an expression system Choosing an appropriate expression vector is the first step...change gloves between constructs if you are transforming more than one construct at a time. For detailed...cause artifacts from over-expression and it is likely that such a construct will be silenced in subsequent...for visual selection of transformants based on expression of RFP in the seed (Emami, Yee and Dinneny, 2013...begins. If your plants begin to flower before your constructs are ready for transformation, you can cut off...lots of seeds. I typically use 8-10 plants per construct I transform. More seeds mean more chances to recover...generation. You also have no control over where your construct will be inserted. If your insertion occurs in ...
  18. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

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    ... need to construct plasmid vectors or synthesize/purify IVT sgRNA in the lab. Figure 2: Cas9 RNP complexed...genes more effectively than Cas9 complexed with sgRNA. Direct comparison of Cas9 RNPs prepared with an in...Enhanced CRISPR/Cas9-mediated precise genome editing by improved design and delivery of gRNA, Cas9 nuclease,...target site. With the widespread adoption of CRISPR/Cas9 technology and rapid improvements in the field, ...however, suffer from many pitfalls: they require construction of plasmid vectors and/or rely on cumbersome...set out to develop a hassle-free, highly efficient Cas9 protein-based method for epitope tagging in mammalian...genes at a time using Custom Synthetic cr:tracrRNA/Cas9 Ribonucleoprotein (csRNP) delivery Epitope tagging...
  19. Optogenetics + CRISPR, Using Light to Control Genome Editing

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    ...light-activated split-Cas9 (FAST) system constitutively expresses the C-terminal fragment of Cas9 while transcription...proteins from N. crassa Split Cas9, Split Cas9 nickase, Split dCas9 Genome editing by NHEJ and HDR, repression...Photoswitchable Cas9 Richter et al., 2016 tsRC9 RsLOV from R. sphaeroides Cas9, dCas9 Gene editing ...Sativa AcrIIA4 anti-CRISPR protein, co-expressed with Cas9 or dCas9 Repression of gene editing and transcription...heterodimerizing domain to each of the Cas9 fragments, the authors created a photoactive Cas9 tool, as shown in the figure...modular nature of Cas9, Nihongaki et al. showed that it was possible to swap out the Cas9 domains in their... is light-dependent (Yu et al., 2020). To express the N-Cas9, Haifeng Ye’s lab used the bacterial phytochrome...
  20. Hot Plasmids and Viral Preps - May 2021

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    ...CRISPR/Cas9 constructs. zCas9i is a high efficiency intron-optimized SpCas9-coding gene. SlugCas9 is a ...different promoters driving expression of Cas9 were used in this study.  The zCas9i cloning kit is a plant ...this method, the major capsid protein VP1 is co-expressed with a fusion protein containing VP2C and a protein... of the population.  Because indel generation by Cas9 can occur at a steady rate, scientists found a way...a compact Cas9 ortholog from Staphylococcus lugdunensis that recognizes a NNGG PAM and has comparable ...with 6-12 guides per gene where gRNA expression is induced by anhydrous tetracycline. Three new anti-CRISPRs...anti-CRISPRs were identified that inhibit the S. aureus Cas9, a Cas protein that is smaller and easier to deliver...
Showing: 41 - 60 of 102 results