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We narrowed to 833 results for: ins

Showing: 421 - 440 of 833 results
  1. CRISPR 101: Epigenetics and Editing the Epigenome

    Type
    Blog Post
    Published
    June 24, 2020, 5:45 p.m.
    ...covalent modifications to DNA or histones, the proteins that help package DNA, were associated with gene...With the help of guide RNAs, fusions between Cas proteins and the epigenetic modifier could be targeted ...cytosine demethylation of DNA. However, several proteins in the DNA oxidation and repair pathways work ...of the larger pMVP/pMAGIC cloning system, which contains Cas9 fusions for several epigenetic modifiers,...Sander JD, Reyon D, Bernstein BE, Costello JF, Wilkinson MF, Joung JK (2013) Targeted DNA demethylation...endogenous genes using programmable TALE-TET1 fusion proteins. Nature Biotechnology 31:1137–1142 . https://doi.org...
  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.
    ...immune systems that provide bacteria protection against infectious agents. Several enzymes behind this ... from the Department of Energy’s Joint Genome Institute for uncharacterized genes that were proximal to...40-70 kDa), which is half the size of other Cas proteins found in the so-called class 2 CRISPR-Cas systems... of the larger and more complex Cas9 and Cas12 proteins. Cas14 cleaves ssDNA But what is the function ...providing a gRNA specific of a viral sequences, for instance, the enzymes are activated and can cleave fluorescent...
  3. SpyLigase Irreversibly Locks Peptides Together for Efficient Cell Capture

    Type
    Blog Post
    Published
    Aug. 13, 2014, 3:49 p.m.
    ...for this tool? Howarth: Polyproteins are useful for mechanical study of proteins by atomic force microscopy...SpyLigase can be used to link affibodies or antibodies against common tumor markers to subsequently capture cancerous...SpyTag/SpyCatcher system, to be able to grab on to proteins irreversibly in a genetically encoded way. SpyTag... bacteria have this chemistry in their surface proteins. It is best studied in the pili that they use ...
  4. Lentiviral CRISPR Libraries Enable Genome-Scale, Knockout Screening

    Type
    Blog Post
    Published
    Feb. 20, 2014, 4:57 p.m.
    ...pooled libraries include enrichment against kinases, cell cycle proteins, and more.  “In the past, genome... really not possible before,” said the Broad Institute's Ophir Shalem. “Whole regions of the genome which...delivery vehicle, Neville Sanjana, also of the Broad Institute, said they were able to produce a very diverse... of one of the Science papers, told the Broad Institute. “This will greatly aid efforts to understand ...
  5. Important Considerations When Using AAVs

    Type
    Blog Post
    Published
    June 13, 2017, 2:30 p.m.
    ...when using them. There are suspected cases of insertional mutagenesis in humans (1) and AAVs are non-enveloped... in the tissue/what cell type? In the CNS, for instance, there are marked differences among serotypes ... second strand synthesis before gene expression begins. ScAAV avoid this rate limiting step and can immediately...complexes to study neural function. Often the reporter proteins associated with these complexes are so robustly...References 1. Russell, David W. "AAV vectors, insertional mutagenesis, and cancer." Molecular Therapy 15.10...vectors: packaging capacity and the role of rep proteins in vector purity." Human gene therapy 18.2 (2007...
  6. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

    Type
    Blog Post
    Published
    March 7, 2017, 3:30 p.m.
    ...image. You could probably also do Western blotting against GFP expression, but I didn’t. 2. In the original...data not shown). Pro-Tips: 1.Designing primers against genomic DNA to amplify the gRNA targets was challenging...digestion products (that would co-migrate on a gel) instead of two different sized digestion products (which...make a figure with the data). Using acrylamide instead of agarose gives much sharper bands. I compared...you are analyzing short DNA fragments, run PAGE instead of agarose to get sharper bands. Conclusion Overall...C, Vogelstein B, Bunz F. Genetic knockouts and knockins in human somatic cells. Nature Protocols 2007;...
  7. Plasmids 101: Walkthrough of Addgene’s Snapgene-Powered Quality Control Process

    Type
    Blog Post
    Published
    Feb. 1, 2018, 3:07 p.m.
    ... selectable markers, tags, origins of replication, and fluorescent proteins that are already included ...backbone sequences, and any known sequences for the insert. The Snapgene desktop software allows us to quickly...using the Snapgene desktop software. If a plasmid contains a region with a high amount of guanine and cytosine...digest to confirm the size of the plasmid and the insert. By using the “Simulate agarose gel” option with...
  8. CASTing Off for New Shores in Human Genome Editing

    Type
    Blog Post
    Published
    June 10, 2025, 1:15 p.m.
    ...recruits transposition cofactors. The transposon proteins integrate a payload sequence into genomic DNA ... combines with a donor template and transposon proteins (Tns) to integrate large sequences into genomic...mutations in TnsB, the subunit that catalyzes DNA insertion, along with both evolved and engineered adjustments...editing with a site-specific recombinase to achieve insertion of long sequences. In their experiments, PASSIGE...S. H., & Liu, D. R. (2025). Programmable gene insertion in human cells with a laboratory-evolved CRISPR-associated...
  9. Antibodies 101: Fc Effector Functions

    Type
    Blog Post
    Published
    May 18, 2023, 1:15 p.m.
    ... antibodies drive an effective immune response against a pathogen. The Fc domain creates a link between...expressing Fcγ receptors binds to IgG and release cytotoxins that kill the target cell. If the pathogen is...and eosinophils, where the eosinophils release cytotoxins via degranulation.  Antibody-dependent cellular... functions and all that antibodies can do! For instance, some Fc receptors, once bound to an antibody,...Inhibitory Fc receptors modulate in vivo cytotoxicity against tumor targets. Nat Med. 2000 Apr;6(4):443-6. doi...
  10. Plasmids 101: Antibiotic Resistance Genes

    Type
    Blog Post
    Published
    Jan. 30, 2014, 3:29 p.m.
    ...this post we'll focus primarily on antibiotics against Gram negative bacteria. In future posts, we'll ...bacteria, and general working concentrations. For instructions on how to prepare antibiotic stocks, see Addgene's... as a marker for successful cloning. In these instances, the cloning vector typically has two separate...that are only resistant to the antibiotic that remains intact. Tips and tricks from the bench Use fresh...Tetracycline is used. Keep in mind that some E. coli strains have natural antibiotic resistances, so make sure...
  11. Hot Plasmids and Viral Preps - September 2021

    Type
    Blog Post
    Published
    Sept. 21, 2021, 1:15 p.m.
    ...-free system, capable of producing fluorescent proteins and enzymes. Image from Moore et al., 2021. ...through monitoring the expression of fluorescent proteins and oxytetracycline enzymes. Next, this system...libraries: Cas13X and Cas13Y, two compact Cas13 proteins found in the metagenome datasets from hypersaline...messenger-RBP sgRNA Library targets human mRNA binding proteins with 10 guide RNAs per gene. The lab modified ...also target core operons in other pneumococcal strains. The BARBEKO sgRNA library uses CRISPR cytosine...
  12. Tetbow: Bright Multicolor Labeling for Neuronal Tracing

    Type
    Blog Post
    Published
    Jan. 24, 2019, 2:24 p.m.
    ...stochastic and combinatorial expression of fluorescent proteins is only possible at low copy number ranges, resulting...2018) (Figure 1). Once introduced, fluorescent proteins were best imaged after tissue clearing with SeeDB2...expression levels. Clearing large tissues - Fluorescent proteins are very stable in SeeDB2. However, SeeDB2 is ...strategies for combinatorial expression of fluorescent proteins in the nervous system." Nature 450.7166 (2007)...labeling of neuronal circuits with fluorescent proteins and chemical tags." eLife 7 (2018): e40350. PubMed...
  13. What the HEK?

    Type
    Blog Post
    Published
    April 18, 2023, 1:15 p.m.
    ...recombinant proteins at high levels. In a case where clinical applications of recombinant proteins are necessary...cells may be particularly useful due to their intrinsic properties. HEK-293 cells are tumorigenic, ...cell line’s ability to faithfully produce these proteins and its relatively low expression of native channels...Cell Line as a Platform to Produce Recombinant Proteins and Viral Vectors. Front Bioeng Biotechnol. (2021...
  14. Donations from Addgene to Yield Answers for Rare Disease Researchers

    Type
    Blog Post
    Published
    Sept. 15, 2015, 2:30 p.m.
    ...Every year, the Rare Genomics Institute sponsors a global competition for researchers working on rare...He says that the award from the Rare Genomics Institute and Addgene will make a substantial difference... (top right) and his colleagues at the Wistar Institute in Philadelphia, PA will put their award to work...Joshua Wang (bottom right), also of the Wistar Institute, says that the lab got interested in XP out of...Resources Find out more about the Rare Genomics Institute and the BeHeard Award!    ...
  15. What Good Citizenship Can Do for Reproducibility in Science

    Type
    Blog Post
    Published
    Nov. 7, 2019, 2:18 p.m.
    ... when a researcher decides on a new project and begins by trying to reproduce someone else’s result. Then...time that they thought would be moving forward instead trying just to get going. It’s like being stuck... in science needs both a job and funding, so institutions and funders, to a large extent, hold the keys...is clearly room to do more. If we could really instill a culture of rewarding good scientific citizenship...UK and then a postdoc at The Scripps Research Institute in La Jolla, California. She joined Elsevier after...
  16. Reagent Repositories Are Speeding up Science During the Pandemic

    Type
    Blog Post
    Published
    Aug. 4, 2020, 1:15 p.m.
    ... Biological repositories that distribute mouse strains, plasmids, cell lines, and much more have been ... Bioresources Cell Bank, part of the National Institutes of Biomedical Innovation, Health, and Nutrition...19 plasmids and resources! Case study 3: Mouse strains Reagents developed during the SARS-CoV pandemic...The Jackson Laboratory, a nonprofit research institution, has been able to rapidly propagate this strain... Aliyah Weinstein...
  17. Quantifying DNA? Here are Five DNA Quantification Methods to Consider

    Type
    Blog Post
    Published
    July 21, 2020, 1:15 p.m.
    ...based on your downstream application, time, and instrument availability. UV absorbance Using UV absorbance...acids (DNA and RNA) absorb maximally at 260 nm. Proteins on the other hand absorb best at 280 nm and organic...you can compare the fluorescence of your sample against this curve to quantify your DNA prep. Though this...this method doesn’t tell you about contaminating proteins or chaotropic salts. Capillary electrophoresis...read with a standard ELISA reader if no other instruments are available. Some last reminders about quantifying...
  18. Using CRISPR/Cas9 to Edit Disease Out of the Genome

    Type
    Blog Post
    Published
    June 23, 2022, 1:15 p.m.
    ...in monoallelic diseases In 2013, a team led by Jinsong Li from the Chinese Academy of Sciences found that...independent team led by Hans Clevers at Hubrecht Institute in The Netherlands used the CRISPR/Cas9 genome...handle on how cleavage sites are repaired.” Those insights will be critical for scientists’ ability to influence...addition, the current work in developing anti-CRISPR proteins aid the limitation of these mutations, to control...s Disease.” Journal of Alzheimer's disease & Parkinsonism. https://doi.org/10.4172/2161-0460.1000439 6...
  19. Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

    Type
    Blog Post
    Published
    Sept. 19, 2017, 1:20 p.m.
    ...Wang, Y., Missinato, M. A., Onuoha, E., Perkins, L. A., Watkins, S. C., . . . Bruchez, M. P. (2016). A ...you can do just that.  Photosensitizing dyes and proteins have been around for awhile (check out this review...produced by photosensitizers inactivate target proteins or cells while having little effect on neighboring...suggests that it could be used with these fluorescent proteins. He et al also compared MG-2I-dL5** head-to-head...
  20. Pushing the Limits of DNA Assembly

    Type
    Blog Post
    Published
    Sept. 6, 2017, 1:01 p.m.
    ...sections, while still creating scarless plasmid inserts.  Want to Learn More about DNA Assembly? Check...polymerase used in the amplification. This tool allows instant updates as fragments are added, deleted, or reordered...(sgRNA). Using only one single-stranded oligo, instead of the more typical two oligos, is more cost effective...linearized plasmid with a synthetic oligo that contains a region of homology and any desired edits to ...amplified with overlapping regions of homology and inserted into a linearized cassette, ready for transformation...
Showing: 421 - 440 of 833 results