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  1. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    Published
    Aug. 4, 2016, 2:30 p.m.
    ...sequencing on select regions of all distributed plasmids as part of quality control, but does not perform...unlike an RNA guide, it cannot be produced from a plasmid in cells. Additionally, in vitro assembly of NgAgo...with 5’-P-ssDNA guides and an NgAgo expression plasmid to edit a gene in vivo. Try NgAgo for Yourself ...complexes or with guide RNA- and Cas9-expression plasmids. Cas9 guide RNA delivery does however rely on ...(1), NgAgo has received much attention and the plasmid has been requested by labs around the globe nearly...happy genome editing! Check Out Other Argonaute Plasmids from the Doudna Lab Many thanks to our Guest ...Enhance CRISPR Targeting Specificity with eSpCas9 and SpCas9-HF1 See How Cpf1 Stacks Up to Cas9 and NgAgo...
  2. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ... Hot Plasmid list. Other popular plasmids & blog posts @Addgene: The 10 Most Distributed Plasmid Technologies...inducible inactivation. Find the Robinson plasmids or the Royle plasmids and get to work! Robinson et al...designed the pOSIP (one-step integration plasmid) series of plasmids, vectors that convey both the sequence...mGRASP plasmids. Additionally, the lab recently described the use of another set of mGRASP plasmids in their... favorite plasmid technologies? Email us at [email protected]  and let us know what plasmids you would ...Yonglong Chen, pCS2-3xFLAG-NLS-SpCas9-NLS is a Cas9 expression plasmid that was used by Chen and colleagues...sgRNA libraries expand upon the CRISPR family of plasmids by offering a lentivirus-based mechanism for sgRNA...
  3. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    Published
    Sept. 26, 2019, 12:50 p.m.
    ...infiltrate cells. Options for CRISPR delivery include plasmid transfection, RNP electroporation, and viral transduction...types they tested. Interested in using Nanoblades? Plasmids are available from Addgene. Genome editing primary...to DNA transfection of gRNA and Cas9 expression plasmids. These results are in line with previous research...out our comprehensive CRISPR guide Find CRISPR plasmids and resources Learn about viral production ...protein The MLV Gag protein fused to a Flag-tagged SpCas9 is incorporated into Nanoblades, just like the ...these variants are fused to the MLV Gag in place of SpCas9. gRNA A gRNA targeting a DNA sequence of interest...
  4. CRISPR-mediated Plant Base Editors

    Type
    Blog Post
    Published
    Jan. 3, 2019, 1:35 p.m.
    ...all CRISPR plasmids and resources at Addgene Find CRISPR base editors Find CRISPR plasmids for plants ...requirements Reference CBE SpCas9 rAPOBEC1 NGG 6 SpCas9 Target-AID (PmCDA1) NGG 5 SpCas9-VQR rAPOBEC1 NGA 8...plant base editors replacing the SpCas9 with the mutant versions of SpCas9 and SaCas9, which recognize PAM...SaCas9-KKH rAPOBEC1 NNNRRT 8 ABE SpCas9 TadA-TadA* NGG 9-12 SpCas9-VQR TadA-TadA* NGA 8 SaCas9 TadA-TadA...compatibility All of the base editors mentioned above are SpCas9 nickase-based and depend on the presence of an ...TadA-TadA* NNGRRT 9 SaCas9-KKH TadA-TadA* NNNRRT 8 SpCas9-VRER TadA-TadA* NGCG 8  Tips for designing base...
  5. New and Upcoming Viral Vectors - December 2019

    Type
    Blog Post
    Published
    Dec. 19, 2019, 2:40 p.m.
    ... for the entire collection! Plasmid Serotype Name 51502 AAV5 pCAG-FLEX-EGFP-WPRE 114471 AAV1, AAV5...constructs from Christopher Harvey’s lab. These plasmids localize opsins to the soma to avoid off target...neighboring neurons. We have also packaged hChR2(H134R) plasmids from Karl Deisseroth’s lab, which includes pAAV-hSyn...H134R)-EYFP that is both Cre and Flp dependent. Plasmid Serotype Name 124603 AAV9 pAAV-EF1a-DIO-ChrimsonR-mRuby2... has now expanded to offer many of our control plasmids in new serotypes. See our Serotype Testing AAV... jGCaMP7 from Janelia, including three jGCaMP7 plasmids now packaged in AAVrg. jGCaMP7s, the variant with...post Overview of AAV Encoded Calcium Sensors). Plasmid Serotype Name 104489 AAVrg pGP-AAV-syn-jGCaMP7b-WPRE...
  6. pSiM24: Simplifying Plant Genetic Engineering

    Type
    Blog Post
    Published
    Sept. 29, 2015, 2:30 p.m.
    ...stability of modified Ti plasmids during plant infection, as well as plasmid yield during preparation ...GreenGate Plasmids Interview: Nicola Patron on Plant Synthetic Biology, MoClo, and More Plasmids 101: Origin...Agrobacterium carries a “tumor-inducing” or Ti plasmid, which allows it to transfer genetic material into...in two species: Agrobacterium and E. coli. Like plasmids used in other systems, binary vectors are cloned...It’s a lot of information to fit into a single plasmid, so most first-generation binary vectors are quite...pSiM24 are suitable for many applications, the plasmid can also be customized due to its modular structure...Addgene Check out Addgene’s plant vectors! Find the plasmids from this paper at Addgene. Other relevant blog...
  7. Pathways Over Time Plasmids Engage Students in Functional Genomics Research

    Type
    Blog Post
    Published
    May 22, 2018, 1:38 p.m.
    ...methionine (i.e. the plasmid complements the deletion). Find the Plasmids Here Plasmid features enable multiple...the overexpression plasmids. Finally, students determine if the presence of the plasmid corrects any known...diverged. Tips on using the Pathways Over Time plasmids The plasmids are used as part of a semester-long research...less-well studied organism into overexpression plasmids. Students next transform deletion strains from...phenotypic abnormalities due to the deletion (i.e. the plasmid complements the deletion). If the phenotype is ...cerevisiae met deletion strains with overexpression plasmids carrying MET/Met genes from either S. pombe or.... Students then determine if expression of the plasmid-encoded MET gene allows the transformed strain ...
  8. Hot Plasmids and Viral Preps - July 2021

    Type
    Blog Post
    Published
    July 27, 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... CRISPR plasmids are always being added to the repository. To find all of the CRISPR plasmids available...EasyTag workflow combines thoughtfully designed plasmid components with Fluorescence Activated Cell Sorting...available from Addgene, head over to our CRISPR Plasmids and Resources page. Here are some highlights from the...Nasse We regularly add new viral aliquots from our plasmid collection to provide ready-to-use viral preps....editing in moderate thermophiles.  These evolved SpCas9 variants have improved activity on NAG PAMS and...
  9. What's New in CRISPR - November 2021

    Type
    Blog Post
    Published
    Nov. 18, 2021, 2:15 p.m.
    ...CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids Topics: CRISPR, Other CRISPR... where we highlight a few of the newest CRISPR plasmids available at Addgene. If you want to read more...will cover: Miniature CRISPR-Cas systems SEND plasmids Prime editing improvements Miniature CRISPR-Cas...Read the paper in Molecular Cell Find the CasMINI plasmids Efficient CRISPR editing with a hypercompact ...paper in Nature Biotechnology Find the Cas12f-GE plasmids Programmed genome editing by a miniature CRISPR-Cas12f...cells using various delivery methods, including plasmid, ribonucleoprotein, and AAV.  Read the paper in... in Nature Chemical Biology Find the AsCas12f1 plasmids   Selective endogenous encapsidation for cellular...
  10. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...packaging plasmids. The cells need three different plasmids to produce AAV: 1) the RepCap plasmid which provides...AAV plasmid standard and AAV transfer plasmids. It’s easy to contaminate a workspace with plasmid, not...going to lie, AAV transfer plasmids are kind of a pain to work with. These plasmids contain ITRs which are...AAV’s protein shell, or capsid; 2) the pHelper plasmid which expresses adenovirus genes which help mediate...mediate AAV viral replication; and 3) the transfer plasmid which encodes a transgene of interest that’s packaged...structures that are prone to deletion from the transfer plasmid. The good news is there’s a few simple ways to ...multiple bacterial cultures of your AAV transfer plasmid at 30 °C instead of 37 °C and then screen for ITR...
  11. CRISPR 101: Multiplex Expression of gRNAs

    Type
    Blog Post
    Published
    Sept. 10, 2020, 11:45 a.m.
    ...multiple gRNAs on the same plasmid, you’ll make sure that each cell that gets the plasmid contains all of the...rectangles) are cloned into various plasmids using oligonucleotides. These plasmids contain Type IIS restriction...different purposes.   Gersbach Lab multiplexing plasmids: This plasmid set allows you to express 2-4 gRNAs, with...assembled to produce a plasmid encoding the gRNAs and Cas9. As with the Gersbach lab plasmids, multiple Cas9 ...Golden Gate/Gibson Assembly Multiplexing Plasmids: These plasmids allow you to assemble 2-4 gRNAs through...Golden Gate/Gibson Assembly Multiplexing Plasmids: These plasmids can be used to express up to 8 gRNAs after...Yang Lab Single Transcript Multiplexing Plasmids: These plasmids are similar to the Csy4 polycistronic ...
  12. Hot Plasmids and Viral Preps - May 2021

    Type
    Blog Post
    Published
    May 18, 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...highlights from recent CRISPR plasmids. To find all of the CRISPR plasmids available from Addgene, head...Hutchinson Cancer Research Center developed a pooled plasmid library encompassing all possible amino acid mutations...anti-SARS-CoV-2 antibodies. In the library, each plasmid encodes the mutated spike protein and a barcode...head over to our CRISPR Plasmids and Resources page.  A new system uses light to deactivate photocleavable... accumulation of indels to measure time. These plasmids with different promoters driving expression of...
  13. Comparing Cas9 to NgAgo: Can the Argonautes Best CRISPR?

    Type
    Blog Post
    Published
    June 9, 2016, 2:30 p.m.
    ...for short. Addgene has already distributed this plasmid all over the world, and the question on everyone...identified NgAgo and showed that it can cleave plasmid and genomic DNA in a variety of mammalian cell ...homology-directed repair when a template is supplied. Find Plasmids from the NgAgo Publication at Addgene Cas9 and... contrast, RNA guides must be expressed from a plasmid or in vitro transcribed, and changes in gRNA secondary.... Epub 2016 May 2. PubMed PMID: 27136078. Find plasmids from this publication at Addgene. 2. Swarts, Daan...24531762. PubMed Central PMCID: PMC4697943. Find plasmids from this publication at Addgene. 3. Swarts, ...887 amino acids in length, NgAgo is shorter than SpCas9 (1368 aa), SaCas9 (1053 aa), or Cpf1 (1228 or 1307...
  14. CRISPR 101: Ribonucleoprotein (RNP) Delivery

    Type
    Blog Post
    Published
    Sept. 6, 2018, 12:02 p.m.
    ...commonly performed by transfecting cells with a plasmid, such as PX459, which encodes Cas9 and contains...chosen for both Cas9 and gRNA expression       Plasmid DNA may be incorporated into the genome     Off-target...targets with similar efficiency as compared to plasmid-based expression of Cas9/gRNA and can be used for... as CMV or EF1A promoters found in many CRISPR plasmids) are not expressed. Because this method does ...fluorophore tagged dCas9 may require the use of plasmid or viral-mediated delivery. You’ve decided to...and purify His-tagged Cas9 from E. coli using a plasmid such as pET-28b-Cas9-His from Alex Schier’s Lab...experimental systems that may not be amenable to plasmid based methods. One of the most common techniques...
  15. CRISPR 101: Epigenetics and Editing the Epigenome

    Type
    Blog Post
    Published
    June 24, 2020, 5:45 p.m.
    ...cytosine demethylation in mammalian cells. This plasmid is used with pcDNA3.1-MS2-Tet1-CD to decrease methylation...Tet1CD, is available from Rudolf Jaenisch’s lab in plasmid form or as ready-to-use lentivirus. Figure...Staphylococcus aureus Cas9 (Sa-Cas) and deposited plasmid IF311: pMAGIC (R4-R3) NLS-Sa dCas9-NLS-LSD1. LSD1...experience with these constructs in the comments! Find Plasmids for Epigenetic Modification   Leah Schwiesow...510–517 . https://doi.org/10.1038/nbt.3199 Find plasmids from this publication at Addgene. Klann TS, Black...561–568 . https://doi.org/10.1038/nbt.3853 Find plasmids from this publication at Addgene.  Lei Y, Zhang...8: . https://doi.org/10.1038/ncomms16026 Find plasmids from this publication at Addgene. Liu XS, Wu ...
  16. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

    Type
    Blog Post
    Published
    Oct. 19, 2017, 1:54 p.m.
    ....org Find Cre-Lox Plasmids Find Optogenetics Plasmids Find Chemogenetics Plasmids ...vectors expressing light inducible ion channels (plasmid # 20298 for example) have revolutionized Neuroscience...neurons in the living brain   Figure 1: Plasmid mix to label neuronal morphology (eYFP) and the...recombinase. After in-utero electroporation, this plasmid mix results in sparse labeling of cortical neurons...labeling of individual neurons one could reduce the plasmids amounts to reduce transfection efficiency. However...visualized at the same time from two different plasmids this approach becomes problematic as it reduces...that most cells are transfected with all labeling plasmids and the low concentration of recombinase restricts...
  17. Viral Vectors 101: Producing Your rAAV

    Type
    Blog Post
    Published
    July 16, 2024, 1:15 p.m.
    ...packaging plasmids: the pHelper plasmid containing Ad E2A, E4, and VA RNA genes; and the pRepCap plasmid containing...with your transfer plasmid, carrying your gene of interest, and the two helper plasmids, commonly called...called “triple plasmid transfection” (Figure 1).    Figure 1: Overview of key steps of AAV production, iodixanol...repeats (ITR). You should always have a high-quality plasmid standard and rAAV reference material of a known...before undergoing titering, to remove residual plasmid DNA carried over from the production process. For...blog Parts of the AAV Packaging PlasmidParts of the AAV Transfer PlasmidAAV Variables That Matter AAV protocols...
  18. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    Published
    Feb. 28, 2017, 3:30 p.m.
    ...24360272. PubMed Central PMCID: PMC3918502. Find plasmids from this publication at Addgene. 2. Ma, Hanhui...25713381. PubMed Central PMCID: PMC4364232. Find the plasmids from this publication at Addgene. 3. Ma, Hanhui...27088723. PubMed Central PMCID: PMC4864854. Find the plasmids from this publication at Addgene. 4. Kiani, Samira...26344044. PubMed Central PMCID: PMC4666719. Find plasmids from this publication at Addgene. Additional ...Resources on Asddgene.org Find Fluorescent Protein Plasmids Find Fluorescent Protein Kits Find Empty Backbones...create a colorful Cas9 toolbox, Ma et al. turned to SpCas9 and its orthologs NmCas9 and St1Cas9. Each ortholog...
  19. Treating Muscular Dystrophy with CRISPR Gene Editing

    Type
    Blog Post
    Published
    Jan. 26, 2016, 3:30 p.m.
    ...for future preclinical and clinical work. Find Plasmids for Disease Research on Our Special Collections... Check out Our CRISPR Guide Pages Find CRISPR Plasmids for Your Research Find Validated gRNAs for Your...period of time. High fidelity Cas9s such as eSpCas9 and SpCas9-HF should be explored to reduce off-target...mutation in dystrophin exon 23. Long et al. used SpCas9 in conjunction with AAV9, whereas Nelson et al....
  20. Mapping the 4D nucleome with CRISPR/Cas9

    Type
    Blog Post
    Published
    Aug. 11, 2015, 2:30 p.m.
    ....1420024112. Epub 2015 Feb 23. Pubmed. Find the plasmids from this publication at Addgene. Dynamic imaging...10.1016/j.cell.2013.12.001. Pubmed. Find the plasmids from this publication at Addgene. A protein-....2014.09.039. Epub 2014 Oct 9. Pubmed. Find the plasmids from this publication at Addgene. ...create a colorful Cas9 toolbox, Ma et al. turned to SpCas9 and its orthologs NmCas9 and St1Cas9. Each ortholog...
  21. Visualizing Genomic Loci with CRISPR-Sirius

    Type
    Blog Post
    Published
    April 18, 2019, 12:53 p.m.
    ...Addgene.org Browse our CRISPR plasmids for visualization Find plasmids for your research Read our CRISPR..., give CRISPR-Sirius a try. Find CRISPR-Sirius plasmids at Addgene. References Ma, Hanhui et al. “Multicolor...different fluorescent protein to various Cas9 variants, SpCas9, NmCas9, and St1Cas9. These fusions localized to...
  22. CRISPR 101: Cas9 vs. The Other Cas(s)

    Type
    Blog Post
    Published
    Dec. 8, 2022, 2:15 p.m.
    ...CRISPR beyond spCas9 Cas proteins More resources on the Addgene Website CRISPR Plasmids and Resources...the fact that it is smaller than the traditional SpCas9 enzyme (about a third of the size) and does not...cleave RNA through the same mechanism as traditional spCas9. If you are looking to modify RNA, Cas9 just won...
  23. CRISPR 101: Cytosine and Adenine Base Editors

    Type
    Blog Post
    Published
    Feb. 13, 2025, 2:15 p.m.
    ...off-target activity.  Find CRISPR base editing plasmids at Addgene Improving cytosine base editing scope... highlighted in this article.  Publication Plasmids   Highlights Komor et al., 2016 BE1, BE2, BE3...background with our CRISPR Guide Browse CRISPR plasmids for base editing Find validated gRNAs ... deaminase portion of the base editor to create SpCas9 base editors with editing windows as small as 1...available fused to ABEmax(7.10) or to BE4max   Evolved SpCas9 with NRN or NYN PAM site Chen et al., 2023 Td-CBE...
  24. New and Upcoming Viral Vectors - September 2019

    Type
    Blog Post
    Published
    Sept. 12, 2019, 1 p.m.
    ...is now complete! pAAV-CAG-GFP (plasmid 37825) and pAAV-hSyn-EGFP (plasmid 50465) are now available as 20...promoter directs broad, neuronal expression. AAV pCAG-FLEX-EGFP-WPRE (51502-AAV5): The CAG promoter directs...
  25. Typing CRISPR Systems

    Type
    Blog Post
    Published
    March 18, 2025, 1:15 p.m.
    ...recently that researchers began building optimal plasmids to harness the power of Class 1 systems. Class...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 ...highly diverse and involved in competition between plasmids. Nucleic Acids Research, 48(4), 2000–2012. https... resources on Addgene.org CRISPR guide CRISPR plasmids CRISPR references ...There are three subtypes, A–C, with the beloved SpCas9 (from Streptococcus pyogenes) belonging in II-A...
  26. How to Design Your gRNA for CRISPR Genome Editing

    Type
    Blog Post
    Published
    Sept. 24, 2020, 1:15 p.m.
    ...CRISPR Basics with Our CRISPR Guide Find CRISPR Plasmids for Your Research Find CRISPR Pooled Libraries...capacity of a locus. When using S. pyogenes Cas9 (SpCas9), potential target sites are both [5’-20nt-NGG]...editing, there are usually few potential gRNAs. While SpCas9, with a PAM preference of NGG, is still the most...gRNAs that are likely to be active, not only for SpCas9 but also for some other Cas enzymes. It seems to...
  27. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    Published
    May 8, 2018, 1 p.m.
    ...Addgene.org Check out our CRISPR guide Find CRISPR plasmids for your research Find other CRISPR software resources...multiplex CRISPR-Cas9 double-strand DNA breaks using SpCas9. More features will be added to the ICE software...configured for Cas9 fromStreptococcus pyogenes (SpCas9). ICE Score - The editing efficiency (percentage...
  28. Custom CRISPR Screens & the Green Listed Software

    Type
    Blog Post
    Published
    July 11, 2017, 2:30 p.m.
    ...Find CRISPR Screening Libraries Browse All CRISPR Plasmids ...used for each gene. At the moment, 13 full genome SpCas9 knockout libraries designed by different academic...Library, for example related to strategies beyond SpCas9, or species not currently included in Green Listed...libraries. As of now I have focused on human and mouse SpCas9 knockout libraries, but there are of course great...
  29. CRISPR 101: Validating Your Genome Edit

    Type
    Blog Post
    Published
    Nov. 3, 2022, 12:15 p.m.
    ...Tools Read other CRISPR blog posts Find CRISPR Plasmids at Addgene  ... for reduced off target editing, such as SpCas9-HF1, eSpCas9(1.1), or HypaCas9. Read more about Cas9 options...
  30. CRISPR 101: Cas9 Nickase Design and Homology Directed Repair

    Type
    Blog Post
    Published
    March 15, 2018, 12:59 p.m.
    ...Check out CRISPR Topic Page Find CRISPR Nickase Plasmids Browse the CRISPR Guide ...nickase experiment Overview of Cas9 nickase We’ll use SpCas9 nickases as examples for this post. The D10A mutation...
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