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We narrowed to 250 results for: cas9 genes

Showing: 141 - 160 of 250 results

  1. CasPEDIA: A Functional Classification of Cas Enzymes

    Type
    Blog Post
    Published
    Jan. 25, 2024, 2:15 p.m.
    ...the Addgene blog CRISPR 101: Which Cas9 do I choose for my CRISPR experiment? CRISPR 101: Cas9 The ...long ago, spCas9 was the only Cas enzyme widely available and applied by researchers for gene targeting...they're available through Addgene. So whether you're looking for the exact Cas9 plasmid used by Jinek et...Resources on Addgene.org CRISPR software and resources Addgene CRISPR Guide Addgene’s CRISPR 101 eBook...and trans activity of each entry. For example, SpyCas9a (one of the most frequently used Cas enzymes) ... trans activity. AsCas12a, on the other hand, generates staggered DNA nicks at its target in cis and cleaves...end goal. CasPEDIA also features useful links to Addgene resources throughout the site. In the Experimental...

  2. CRISPR-Cas14: a family of small DNA-targeting enzymes enabling high-fidelity SNP genotyping

    Type
    Blog Post
    Published
    Nov. 29, 2018, 1:53 p.m.
    ...Energy’s Joint Genome Institute for uncharacterized genes that were proximal to a CRISPR array and the universal...CRISPR-Cas systems containing cas1, cas2, cas4, and a new gene cas14. cas14 encodes for a small Cas protein (40...-Cas systems. There are 24 variants of the cas14 gene that cluster into 3 subgroups (cas14a-c). All these...primitive version of the larger and more complex Cas9 and Cas12 proteins. Cas14 cleaves ssDNA But what...potential of Cas14, the Doudna lab cloned the cas14 gene together with the adjacent CRISPR array and intergenic... and cleave a targeted sequence of ssDNA. Unlike Cas9, Cas14 does not require a PAM sequence. In addition...presence of infectious organisms (ex: SARS-CoV-2) and genetic mutations. By providing a gRNA specific of a viral...

  3. Popular Retroviral Vectors and Their Uses in Scientific Research

    Type
    Blog Post
    Published
    July 24, 2018, 12:51 p.m.
    ...among other things) gene delivery, generating pluripotent stem cells, and developing gene therapies for monogenic...Cre-dependent gene expression, gene knockout, and selection marker removal. CRISPR technology pdCas9-humanized...and lentiviral vectors that are used for gene regulation, gene of interest expression, knockout, and screening...codon-optimized Cas9 under the control of Murine Stem Cell retrovirus promoter for mammalian gene knockdown....Expressing your gene of interest pLenti-puro (Plasmid #39481) You can clone your gene of interest into...inducible gene overexpression, knockdown (shRNA, miR-30-shRNA), mutation/editing (CRISPR-Cas9) or deletion...This is a 3rd generation lentiviral backbone from the Zhang lab expressing S. pyogenes Cas9 and a gRNA cassette...

  4. Viral Vectors 101: Integrase-Deficient Lentiviral Vectors

    Type
    Blog Post
    Published
    May 13, 2025, 1:15 p.m.
    ...using CRISPR/Cas9 to edit a gene, the expression of Cas9 is no longer necessary. However, Cas9 can be toxic...Gag, Pol, Rev, and Tat genes. Specifically for our knowledge here, the Pol gene encodes three separate...Insertional mutagenesis combined with acquired somatic mutations causes leukemogenesis following gene therapy...insertional mutagenesis. This integration could lead to an undesirable interruption of a critical gene. Because...Insertional mutagenesis is especially concerning in clinical settings, as evidenced by retroviral gene therapy...like creating stable cell lines, delivering CRISPR/Cas9 to cells for genome editing, and introducing inducible...transcriptase), and IN (integrase). These viral packaging genes are required for the production of lentiviral particles...

  5. The 10 Most Distributed Plasmid Technologies in Addgene's First 10 Years

    Type
    Blog Post
    Published
    Jan. 8, 2014, 3:10 p.m.
    ...technology of the year in our collection. CRISPR/Cas9 - At Addgene, 2013 will be known as the "Year of the CRISPR...frequently requested. Ubiquitin - One particular gene we saw increased interest in from 2008 to 2009 was...expression and pLVTHM, a lentiviral plasmid for mammalian gene silencing. TALENs - Genome engineering methods improved.... So far, we have distributed over 10,000 CRISPR/Cas9 plasmids to more than 3,000 labs around the world...Addgene was founded 10 years ago today. In that time, Addgene has shipped over 350,000 individual plasmids...biosensors, optogenetics, and other imaging tools. The GCaMP5 and GCaMP6 series of genetically encoded calcium...Top 10 plasmid technologies distributed through Addgene over our first 10 years. 10 most distributed plasmid...

  6. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...expression of your gene of interest.  SapTrap Tool Kit for CRISPR Cas9 edits At Addgene, we have the entire...high-throughput CRISPR/Cas9 gene modification in Caenorhabditis elegans." Genetics 202.4 (2016): 1277-1288...toolkits available at Addgene.  C. elegans open resources The C. elegans Neuronal Gene Expression Map & Network...Additional resources on the Addgene blog Learn more about SapTrap Read about CRISPR/Cas9 in C. elegans Browse... The CeNGEN goal is to establish a comprehensive gene expression atlas of every C.elegans  neuron. Scientists... C. elegans embryo when all essential embryonic genes are individually depleted via RNA interference (...based bipartite expression system that can regulate gene expression in C.elegans. In this system a promoter...

  7. PiggyBac-ing Through the Genome Editing Field

    Type
    Blog Post
    Published
    May 31, 2016, 3:30 p.m.
    ...numerous applications, including transgenesis, gene-trap screens, and gene editing. How does the piggyBac...levels of your gene of interest, as needed. Controlling the expression levels of your gene may be particularly...Transposagen.   How does piggyBac™ enhance gene editing? Gene editing can now be accomplished in a more...(CRISPR/Cas9, TALENs, and ZFNs). However, several challenges still remain, such as making gene edits completely... How does the piggyBac™ gene editing system compare with other methods of gene editing? There are primarily... a variety of gene editing technologies including Zinc Fingers, TALENs, and CRISPR-Cas9 nucleases. Mathew...Decoding the Epigenetic Heterogeneity of Human Pluripotent Stem Cells with Seamless Gene Editing.,” Methods...

  8. Hot Plasmids: Spring 2025

    Type
    Blog Post
    Published
    June 3, 2025, 1:15 p.m.
    ... Strong expression: A CMV promoter drives robust gene expression in mammalian cells. Flexible tagging:...tag. Selectable and stable: A puromycin resistance gene makes stable cell line creation a breeze. Modular...Bentley For RNA-guided genome editing, think beyond Cas9 with STITCHR: a combined CRISPR / retrotransposon... Figure 4: STITCHR consists of a nicking Cas9 fused to a shortened R2Tocc transposon protein, ...for scarless insertion of the payload (teal). The Cas9 gRNA targeting guide and the transposon RNA homology...scientists fused the retrotransposon protein R2Tocc to a Cas9 nickase to improve target recruitment and nicking...labeling By Alyssa Shepard To fully understand how genes are regulated, it's important to know what proteins...

  9. New CRISPR Web Resources and #12DaysofCRISPR Recap

    Type
    Blog Post
    Published
    Dec. 12, 2017, 3:13 p.m.
    ...Truncated gRNAs for Regulating Gene Expression and CRISPR 101: Epigenetics and Editing the Epigenome (plus...and CRISPR Antimicrobials Day 7: Multiplexing and Cas9 variants: CRISPR 101: Multiplex Expression of gRNAs...Joining and PITCHing MMEJ as an Alternative Route for Gene Editing Day 9: Precision editing: Single Base Editing...Genome-Wide Screening Using CRISPR/Cas9 and Plasmids 101: NGS Quality Control for Pooled Libraries Day 12: New... CRISPR Targeting Specificity with eSpCas9, SpCas9-HF1, & HypaCas9 Day 10: Transcriptional regulation:...Since the start of the CRISPR revolution, Addgene has distributed over 100,000 CRISPR plasmids. But that...flame for its adenine base editing capabilities. Epigenetics: CRISPR has made it possible to design programmable...

  10. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

    Type
    Blog Post
    Published
    Aug. 13, 2019, 12:58 p.m.
    ...70% of human genes have a counterpart in zebrafish. Understanding the function of these genes in fish will...unknown functions for genes, and lays the groundwork for understanding the gene networks that regulate...zebrafish-specific gene expression databases that provide information about when and where genes are active in...TALENs, and more recently CRISPR/Cas9. Another popular targeted gene deactivation method in zebrafish ...investigations. Genetic resources for zebrafish A common approach to unravel the gene networks that drive...model organism is its amenability to genetic manipulation. Tools for gene manipulation together with information...Additional mutagenesis projects have since been initiated and today thousands of mutations in genes affecting...

  11. New CRISPR Tools: Cas7-11 and PASTE

    Type
    Blog Post
    Published
    Feb. 17, 2022, 2 p.m.
    ...found in the same gene. If we only have small, directed editing abilities, any gene editing treatment ...functional copy of the entire gene, allowing a one-size-fits-all approach to gene replacement therapy for most...programmable gene insertion with PASTE. The PASTEsystem involves insertion of landing sites via Cas9-directed...insertions, leaving a several kilobase-sized gap in the gene editing field. The AbuGoot lab has now developed...to work. (It was also found to be independent of gene repair.) This lowers the chance of the insert being...activity. They now had a system that could integrate genes up to 36 kb in length, with an integration rate ...bylanding site recognition and integration of cargo via Cas9-directed integrases.   Use PASTE can be delivered...

  12. Hot Plasmids: Summer 2025

    Type
    Blog Post
    Published
    Aug. 28, 2025, 1:15 p.m.
    ... third of the size of Cas9). Figure 2: Comparison of TnpB (A) and Cas9 (B) genome editors. Effector...plasmids from Addgene By Meghan Rego Attention AAV users: in an effort to expand your gene delivery toolkit...recombinase payload activates a floxed reporter gene (genetically encoded or delivered separately). ..., recruited by either the ωRNA (TnpB) or a gRNA (Cas9). Drawings not to scale. Created with BioRender....broad tissue tropism for gene therapy and ex vivo cell engineering applications and is especially well-...editing LARRYv2 pooled libraries for cell barcoding Addgene’s own AAV6 and AAV11 packaging plasmids Mapping ...biologists, due to their compact size and ability to generate heritable edits (learn more in our recent blog...

  13. A History of Genome Engineering in Popular Culture

    Type
    Blog Post
    Published
    Feb. 25, 2020, 2:15 p.m.
    ...’s first genetic engineering company, Genentech, was founded.  This commercialization of gene editing ...before the discovery of genes themselves.  How has scientific progress in genetic editing impacted the world... DNA sequences is not ideal. For the early generation gene editors, new amino acid recognition sites had...fused a catalytically impaired Cas9 protein to a DNA-editing enzyme to generate the prototypical base editor...followed by non-homologous end-joining that results in gene knockouts.   Star Trek: Into Darkness (2013) which...The major drawback of all the endonuclease-based gene editors (meganucleases, ZFNs, TALENs, and CRISPR-Cas...based on a prime editor which is a fusion between Cas9 and reverse transcriptase. Using an elongated template...

  14. RUBY-Red Siliques

    Type
    Blog Post
    Published
    March 1, 2022, 2:15 p.m.
    ...individual. For example, with CRISPR-Cas9 gene editing, transformation may be identified by resistance ...resources on the Addgene blog  CRISPR 101: Engineering the Plant Genome Using CRISPR/Cas9 Tips for Arabidopsis...fluorescent proteins. Selection using resistance genes usually involves killing the untransformed seedlings...continued production of new alleles or off-target gene editing. Antibiotic selection would only then kill...requires specialized equipment. Reporters for studying gene expression have similar drawbacks, often requiring...Res. (2020).   I can do this by expressing a gene that rescues the mutations, using RUBY as a selection.... et al. A reporter for noninvasively monitoring gene expression and plant transformation. Hortic Res ...

  15. Hot Plasmids Spring 2024

    Type
    Blog Post
    Published
    May 23, 2024, 1:15 p.m.
    ...REVeRT, for gene delivery using reconstitution via mRNA trans-splicing. By splitting a large gene into smaller...the introduction of extraneous genetic material to reconstitute the gene of interest, reducing the immunogenicity...Blainey’s lab has developed a multiplexing approach to Cas9-based pooled CRISPR screens called CROPseq-multi...Anzalone et al., 2019, including modifications to the Cas9 or reverse transcriptase enzymes, inhibition of ...end of the pegRNA, which is not well protected by Cas9. This is similar to the proposed mechanism for engineered...hIBA1a, 466 bp) that drives high microglia-specific gene expression when incorporated in an AAV vector (Figure...doi.org/10.1101/2023.12.12.571321.  Revolutionizing Gene Therapy: The REVeRT Dual AAV Vector System By Vaibhav...

  16. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...effectively targets your gene/region of interest is a key step for CRISPR/Cas9 gene editing. Dr. Masahito...plasmids available! Interested in purifying Cas9? Check out pET-28b-Cas9-His from Alex Schier's lab, designed...sequence or gene of interest into the pCoofy vectors, select the appropriate pair of vector and gene primers...vector and gene primer for SLIC cloning. Amplify the pCoofy vector and the sequence of gene of interest... can be used to generate random mutagenesis libraries or to insert heterologous genes, reporters, or other...Updated mini-transposon vector for bacterial mutagenesis or gene targeting Victor de Lorenzo's lab has...approach to genetic engineering which drastically reduces the time and effort needed to insert new genes into...

  17. Harnessing Bacterial Toxins for Allelic Exchange

    Type
    Blog Post
    Published
    Aug. 15, 2019, 12:30 p.m.
    ...relies on the sacB gene product of B. subtilis (Hmelo et al., 2015). The sacB gene product is a sucrase... the CRISPR/Cas9 system with lambda red recombineering enables simplified chromosomal gene replacement... in the chromosome is to disrupt expression of a gene with an antibiotic resistance cassette. This leaves...sometimes interfering with expression of surrounding genes. However, there are ways to create scarless mutations...(Thomason et al., 2014). In recent years, CRISPR-Cas9 technology has also aided in the creation of scarless...Red that contained one of eight bacterial toxin genes isolated from E. coli or Psuedomonas aeruginosa....toxins, and phage holins. They hypothesized that genes that had evolved specifically for toxicity would...

  18. CRISPR 101: Off-Target Effects

    Type
    Blog Post
    Published
    Feb. 8, 2024, 2:15 p.m.
    ... the Addgene blog CRISPR 101: Which Cas9 do I choose for my CRISPR experiment? CRISPR 101: Cas9 The ...X, Gao F, Guo Y. Off-target effects in CRISPR/Cas9 gene editing. Front Bioeng Biotechnol. 2023 Mar 9;11...confounding mutations, the risk is high. You are generating a gene therapy product with CRISPR to (hopefully)...not to cleave DNA and instead activates/represses gene expression by various mechanisms. The RNA guide ...which involves making specific knock-out edits in a gene(s) of interest and has an average off-target frequency...involves making a large sgRNA library to thousands of genes and targeting and sequencing millions of cells. ...confound an experiment due to their location (e.g. in a gene in a similar pathway, a growth factor, etc.) this...

  19. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

    Type
    Blog Post
    Published
    March 1, 2016, 3:30 p.m.
    ...Gibson assembly, imagine that you want to insert your gene of interest into a vector with a large tag at the...by using Gibson assembly, you can insert both the gene of interest and the tag sequences into the vector...restriction enzyme or PCR to make linearized vector, the Cas9 enzyme along with a specific gRNA was used to cleave...Li K, Wang B, Jin S, Reiser M, Lockey RF. CRISPR/Cas9 nuclease cleavage combined with Gibson assembly ... Zhao X, Gabrieli T, Lou C, Ebenstein Y, Zhu TF. Cas9-Assisted Targeting of CHromosome segments CATCH ...CATCH enables one-step targeted cloning of large gene clusters. Nat Commun. 2015; Sep 1;6:8101. PubMed PMID...the J. Craig Venter Institute in 2009. Here at Addgene we added this option to our drop down menu of common...

  20. Visualizing Genomic Loci with CRISPR-Sirius

    Type
    Blog Post
    Published
    April 18, 2019, 12:53 p.m.
    ...fluorescent protein to various Cas9 variants, SpCas9, NmCas9, and St1Cas9. These fusions localized to specific...The catalytically dead Cas9 protein (dCas9) is well known for its ability to bind DNA targets without... observing low-copy genomic loci or single copy genes. If you want to visualize genomic loci brightly,...inhibition, among others. Over the past few years, dCas9 has also become a robust visualization tool to study...University of Massachusetts Medical School developed a dCas9-based multicolor labeling system to visualize chromosomal...PP7, or boxB sequences inserted into the sgRNA generates blue, green, or red colors for labeling. A combination... PP7, or boxB sequences in the same sgRNA will generate additional colors. Image from Ma et al., 2016 ...
Showing: 141 - 160 of 250 results