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Showing: 161 - 180 of 984 results
  1. Optogenetics AAV Preps

    Type
    Collection
    ...ChrimsonR (soma-targeted) mRuby2 Cre dependent 9 Adesnik 124603 pAAV-EF1a-DIO-ChrimsonR-mRuby2-KV2.1-WPRE-SV40... ChroME (soma-targeted) mRuby3 Cre dependent 9 Adesnik 124651 pAAV-CamKIIa-ChrimsonR-mScarlet-KV2.1 CaMKII...eGtACR1 (soma-targeted) mRuby3 Cre dependent 9 Adesnik 137155 pAAV-nEF-Con/Fon-iC++-EYFP nEF iC++ EYFP...
  2. 27 Hot Plasmids from 2016

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    Blog Post
    ...relaxed gRNA design parameters. To demonstrate the effectiveness of their library design, Moffat laboratory...-strand DNA (ssDNA) oligonucleotides (oligos), and thereby rapidly create desired allele combinations ... pCAG-T7-TALEN(Sangamo)-Destination series, pCAG-Golden-Gate-Esp3I-Destination Takashi Yamamoto pcDNA-TAL-NC2...vector, and besides being used for restoring strain prototrophy, can also aid in designing self-establishing...assay. In their recent publication, Kroeze et al. describe their enhanced TANGO arrestin recruitment assay...optimized, expression validated GPCR sequences to any desired backbone.  Kroeze, et al. Nat Struct Mol Biol....plasmids with the Cross-disciplinary Integration of Design Automation Research lab Moduclar Cloning (CIDAR...
  3. Plasmids 101: Gateway Cloning

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    Blog Post
    ...clone in their desired DNA sequences. Gateway technology relies on the two reactions described below: The ...pLenti CMV Puro DEST (w118-1) or the doxycycline-inducible pLIX_403. The chosen attR destination vector will...between the entry clone and destination vector creates two products: the desires expression clone and a byproduct...produce the desired expression clone. This is possible thanks to the Gateway vectors’ design. They have...vector systems. With the appropriate entry and destination vectors, one can use Gateway to clone a gene ...generated entry clone and the attR sites of the destination vector. This reaction is catalyzed by the LR ...containing the ccdB gene is excised from the destination vector.  Once the BP and/or LR reactions are ...
  4. Lambda Red: A Homologous Recombination-based Technique for Genetic Engineering

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    Blog Post
    ....  These primers are typically ~70 nucleotides long (20 nucleotides that anneal to the DNA sequence of..., the substrate should be ~70-100 nucleotides long with the desired alteration(s) located in the center...genomes. 2) Designing ssDNA oligos that avoid MMR activation:  There are two ways to design oligos that...tube. The donor DNA substrate only requires ~50 nucleotides of homology to the target site for recombination... be explained in greater detail. Substrate DNA design and generation Expression of lambda red recombination...antibiotic resistance cassette.   Substrate DNA Design and Generation Whether you use a linear dsDNA or...insertions or deletions greater than approximately 20 nucleotides, while ssDNA substrate is best for point mutations...
  5. Making CRISPR Plasmids Using Fragmid

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    Blog Post
    ...list of Fragmid destination vectors currently available. Table 1: Fragmid destination vectors Organism...website, which breaks the design process down into four easy steps, provides the real value for the user...potential of them not working, or spend a few weeks designing and cloning the vectors you actually want. But... Fragmid is a modular vector assembly process designed for a quick, plug-and-play approach to cloning...et al., 2024). It reduces the amount of time to design and create a new vector to four days for an experienced...high school interns, were able to use Fragmid to design and clone their vectors in five days. Did you say...s modular assembly structure takes a lot of the design work out of the plasmid creation process. Each ...
  6. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    ...preprint title or a general description of the deposit. Select your desired distribution status: Hold...choose from one of the following descriptions for your plasmid: Encodes insert(s) A plasmid with one or...should describe how your plasmid is intended to be used. For instance, if your plasmid is designed to allow...Unpublished or pre-publication plasmids" and set a desired distribution status. You can submit "Published ...plasmids with the original publication where you described them. Search for your article as you would search...selected your publication or entered your deposit description, the next page will allow you to add plasmids... article. Note that if you entered a deposit description, this will become your article title.   ...
  7. CRISPR 101: Multiplex Expression of gRNAs

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    Blog Post
    ...ligated into Cas9 or dCas9-containing destination vectors. Destination vector options include humanized wt...cell that gets the plasmid contains all of the desired gRNAs. This increases the chance that all the edits...promoters. To use this plasmid, you simply order oligonucleotides for your chosen gRNA target sequences and ...ordered assembly of multiple components into a destination vector. The first step in CRISPR/Cas9 Golden ...Golden Gate multiplexing is to clone the oligonucleotides specifying each gRNA target sequence into distinct...together to allow for ordered assembly into a destination vector that expresses Cas9. This is illustrated...rectangles) are cloned into various plasmids using oligonucleotides. These plasmids contain Type IIS restriction...
  8. Early Career Researcher Toolbox: Free Online Molecular Biology Tools

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    Blog Post
    ...primer design Design primers for Goldengate cloning   Design primers for In-Fusion Cloning Design primers...traces, while the paid version provides more tools for plasmid mapping and design (Figure 1). Benchling: While...academic users. Serial Cloner: Free desktop-based software for plasmid design and mapping. ApE (A plasmid Editor...Primer design tools Many of the above-listed plasmid mapping tools have built-in primer design tools, ...stand-alone sites for general primer design, as well as primer design for different cloning applications...characteristics. NEB Data-optimized Assembly Design (DAD): This tool designs overhang sets for high complexity Golden...Primer design. Plasmid mapping. DNA sequence analysis. We all have our favorite tools for tackling these...
  9. 28 Hot Plasmid Technologies from 2015

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    Blog Post
    ...vectors in a Multisite Gateway reaction with a desired destination vector expressing a separate reporter gene... can't give all of them attention they righlty deserve, but, in this post, we'll provide a small sampling...-2xNLS-VP64 and dCas9(N)-FRB-NES). This system provides users greater temporal control over CRISPR/Cas9...cell events Three years ago, Brian Kuhlman’s lab designed photoswitchable dimers by fusing the SsrA peptide...the authors recently used computational protein design, phage display and high throughput binding assays...transcription of downstream genes. Nihongaki et al describe the targeted activation of endogenous genes and... a gene-specific forward primer containing the desired restriction site (the MCS has several options) ...
  10. Plasmids 101: Golden Gate Cloning

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    Blog Post
    ...customized to direct assembly of DNA fragments. When designed correctly, the recognition sites do not appear... scheme is as follows: the gene of interest is designed with Type IIS sites (such as BsaI or BbsI), that...and do not appear in the final construct. The destination vector contains sites with complementary overhangs...ligation can be done in one 30-minute reaction. The destination vector and entry vector(s) are placed in a single...IIS enzyme and ligase. Although the original destination vector + insert may spontaneously religate, this... be re-digested. In contrast, formation of the desired ligation product is irreversible because this construct...a single reaction! These overhangs specify the desired order of fragments, and the loss of enzyme recognition...
  11. Uncovering Ancestral Bias in CRISPR Research

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    Blog Post
    ... reference?  The CRISPR guides used in the screens they analyzed were designed to have a perfect match...African descent have approximately 20% more single nucleotide polymorphisms (SNPs) that map to guides in the...accounted for in the CRISPR guides they used, leading to mismatches between the guides and the lines’ genomes...modify the CRISpick algorithm to prevent guides from being designed that target regions with high genomic...coming through an unexpected source: the CRISPR guides, short pieces of RNA that bind to a cell’s DNA,...x-axis) which SNPs map to thetargeting sequences of guides across 8 CRISPR libraries. Samples are divided ...are more common in individuals of African descent.Correcting the bias  While their thorough analysis uncovered...
  12. 10 Steps to a Perfect Science Talk

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    Blog Post
    ...suspense. Notice the simplicity of their slides and how the slides complement the spoken message. Learn from...speak to start creating slides or thinking about content. Create a Google.slides or Powerpoint file right...how these speakers talk without looking at their slides or notes. Listen to their stories and narratives...listeners to be thinking “What happens next?”  Describe how you pushed to a solution or overcame obstacles...term, but are worried that this might sound condescending, consider explaining the term on a slide but...talk will really take and to adjust content and slides to better suit the target time frame.   I suggest...peers than a less supportive audience? 7. Hone Your slides Use big images that are easy to see (and for heavens...
  13. Plasmids 101: Walkthrough of Addgene’s Snapgene-Powered Quality Control Process

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    Blog Post
    ...experiments that can be partially designed using the Snapgene desktop software. If a plasmid contains a...sequencing results with reference sequences To design experiments for further plasmid verification Identifying... contents of the resulting FASTA file into the desktop version of Snapgene to visualize the sequence and...in Snapgene’s extensive database. Snapgene also provides easy visualization of open reading frames, which...any known sequences for the insert. The Snapgene desktop software allows us to quickly align multiple sequences...verification experiments: Primer and restriction digest design Some regions of plasmids are difficult to sequence...region with a high amount of guanine and cytosine nucleotides, we might need to send it for Sanger sequencing...
  14. Scientific Reproducibility - Focusing on Solutions at the Minisymposium on Reproducibility

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    Blog Post
    ...experimental designs and we need to be transparent about the reasons we alter these designs if we do so...experimental design to a journal prior to performing the experiment (or set of experiments), the design would...from the event can be found below along with a description of the program beneath it. You can jump to the...the different time stamps in the description to watch any sections you’re particularly interested in, ...JoVe, and Bio-protocol all work to provide more descriptive and interactive protocols that make it much easier...and not just impact. Cause #3: Poor experimental design It’s easy to get excited about positive results...experiments to work, but part of good experimental design is recognizing that we’re biased and taking steps...
  15. Custom CRISPR Screens & the Green Listed Software

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    Blog Post
    ... massive amount of descriptive transcriptomics data. Custom CRISPR screens designed to target differentially...Institutet, in Sweden. It can be very time consuming to design 5 guide RNAs (gRNAs) targeting each of the 1000...). Green Listed is a new software tool used to design gRNAs for custom CRISPR screens targeting a (long...moment, 13 full genome SpCas9 knockout libraries designed by different academic labs, targeting mouse, human...drug targets  Another interesting approach is to design screens against known druggable targets, preferentially...library from Addgene, and then use Green Listed to design a smaller validation screen using selected gRNAs... could also be combined. For example, you could design a screen targeting all differentially expressed...
  16. Plasmids 101: Knockout/Knock-In Plasmids

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    Blog Post
    ...often use the Cre/Lox system described earlier. In this case, you design your targeting vector such that...replacing it or disrupting it with an piece of DNA designed in the lab. Specially constructed plasmids can...template with the endogenous gene. Here, we'll describe the techniques and the plasmids used to inactivate...inactivate specific genes in mammalian cells. Despite the popularity of CRISPR-based knockout/knock-in systems...locus with homologous sequence using a specially designed vector that contains sequence homology to the ... the process, we’ll walk through an experiment designed to knock out exon 2 of a given gene.   ... Figure 1: A knockout targeting vector designed to insert a resistance gene. The vector contains a neomycin...
  17. Plasmids 101: Multicistronic Vectors

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    Blog Post
    ...adapted "self-cleaving" 2A peptides into their muliticistronic vectors. These peptides, first discovered in ...plasmids) are designed to have one or more of the genes replaced.  Additionally, 2A peptides could be PCR-cloned...PDF that you can save on your desktop. The Plasmids 101 eBook is designed to educate all levels of scientists...incorporated into plasmids for research purposes are described below. IRES Elements Translation in eukaryotes...the specific genes cloned into the vector.3  2A Peptides To overcome some of the disadvantages of the IRES...self-cleaving" is not entirely accurate, as these peptides are thought to function by making the ribosome...Proline.  The table below lists the four common 2A peptides employed by scientists. 2A cleavage is universal...
  18. Plasmids 101: Gibson Assembly and Other Long-Homology Based Cloning Methods

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    Blog Post
    ... friends on the Cambridge 2010 iGEM team that describes the basics of Gibson assembly as a parody of “...assembly The Gibson assembly technique was first described by Dr. Daniel Gibson and colleagues at the J. ... Both Snapgene and NEB have tools that help you design primers for PCR amplification of fragments to incorporate...demonstration of how to use Snapgene’s program to design primers for Gibson Assembly. For a simple example...without scars as depicted below. First, you need to design primers to amplify the two fragments while also...the process works best with fragments over 200 nucleotides. This may be because the exonuclease could chew... through an entire fragment shorter than 200 nucleotides before the annealing and polymerization steps...
  19. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

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    Blog Post
    ...knock-in. Another good design tool can be found at Desktop Genetics .For ssODN design, remember to incorporate... systems, you will have to design your crRNAs using other web-based design tools (for C-terminus tagging... not work in pull-down assays: Epitope tagging provides a solution Proteins - the workhorses of the cell...to mention frustrating. One elegant solution to sidestep the antibody problem is to tag the protein of ...sequences at the intended target site. With the widespread adoption of CRISPR/Cas9 technology and rapid ...bioinformatics tool for guide RNA and donor DNA design, and implemented our optimised protocols into a...genome browser: https://www.ensembl.org/index.html Design crRNA/ssODN: Using Ensembl Transcript ID(s) as ...
  20. High Complexity Golden Gate Assembly with NEB’s DAD

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    ...rules of thumb for designing your overhang sets. But are those rules the best way to design GGA overhang sets...overhangs with the same three nucleotides in a row; (4) no more than two nucleotides in the same position; (...data-optimized assembly design (DAD) to build out three tools to help researchers design high-fidelity Golden...the traditional rules of thumb for overhang set design allowed for high-fidelity assembly for sets of ... overhangs that violate some of the traditional design rules) for successful high-complexity Golden Gate...with a high potential for mismatches, so you can redesign individual pieces as needed to improve fidelity... a stochastic search algorithm rather than pre-designed sets, so identical searches can return multiple...
Showing: 161 - 180 of 984 results