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We narrowed to 1,050 results for: ins

Showing: 441 - 460 of 1050 results

  1. Viral Vectors 101: Viral Vector Elements

    Type
    Blog Post
    ...interact with the host. This is the role of Gag proteins: they contain the matrix, capsid, and nucleocapsid...assembly, and display. Pol, the last component, contains the reverse transcriptase and integrase components...convert the cargo from RNA to DNA and permanently insert the cargo into the host genome. Lentiviral-specific... Viral packaging and entry The viral packaging proteins for AAV are rep and cap. Rep is required for viral...discussed. LXs/Iva2 are primarily capsid assembly proteins required for packaging of the virus into particles...Resources Kulanayake, S., Tikoo, S. K. Adenovirus Core Proteins: Structure and Function. Viruses. 2021 13(3):388...

  2. Viral Vectors 101: Types of viruses

    Type
    Blog Post
    ...proto-oncogenes and disrupt their expression (Robinson, 1982). To add insult to injury, retroviruses generally have...This viral DNA (also called proviral DNA) is then inserted into the host's genome and is used to make more...virus-specific elements such as the LTRs or structural proteins are not interchangeable between the two systems...Adenovirus generally has high immunogenicity, but some strains have been engineered to induce a lower inflammatory...immunogenicity low! References and Resources References Robinson HL. Retroviruses and cancer. Rev Infect Dis. 1982...

  3. Protein Tagging with CRISPR/Cas9: A Conversation with Mendenhall and Myers

    Type
    Blog Post
    ...small percentage of the proteins inside a cell have a commercial antibody against them. There’s also a question...Mendenhall of the University of Alabama in Huntsville explains it, a major goal in his laboratory is to understand...track down every last one of those gene regulatory proteins and the places in the genome where they can be.... If things work correctly, the second plasmid inserts a small epitope tag called FLAG at the end of the...

  4. Pooled CRISPR Libraries Offer Genome-Wide Control for Large-Scale Functional Screens

    Type
    Blog Post
    ...and control genes, but according to the Broad Institute's Silvana Konermann, the first generation of CRISPR-Cas9...recognized as an ideal spot to fuse the activators instead of at the protein’s C terminus. With that new design... and knew she was on the right track. The next insight was to assemble a synthetic transcription activation...complex consisting of multiple distinct effector domains that work together synergistically, modeled after...CRISPRa) sgRNA library uses the sunCas9 system and contains 10 sgRNAs for each transcription start site in...The transcriptional repressor (CRISPRi) library contains 10 sgRNAs for each transcription start site in...

  5. Plasmids 101: Yeast Vectors

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    Blog Post
    ...occurring resistant mutants and the insensitivity of yeast strains to some antibiotics. Auxotrophy is ...bacteria, yeast can post-translationally modify proteins yet they still share many of the same technical...replication (Please note: This first section primarily pertains to ORIs in budding yeast, Saccharomyces cerevisiae...other hand, do not require a well defined ORI. Instead, the size and A-T content of the DNA (apparently...compound required for its growth. Many auxotrophic strains of yeast exist which can be easily maintained when...

  6. Plasmids 101: Modular Cloning Applications and Kits

    Type
    Blog Post
    ...multiplexing of sgRNAs against unique genomic targets or multiple sgRNAs against the same target to ensure...protein purification and metabolic engineering. If instead you want to build genetic circuits and would benefit...library of parts but don’t need to add tags to your proteins, then the CIDAR Kit is an excellent option (Iverson...system includes a toolkit to express recombinant proteins within the mitochondrial matrix.     Figure...can be repurposed for CRISPR applications (gene insert = Cas9 + gRNA), Addgene distributes specialized...of a Toolkit for the Expression of Heterologous Proteins in Yeast Mitochondria.” BMC Biotechnology, vol...

  7. Supporting Rare Disease Research with the 2020 BeHEARD Awards

    Type
    Blog Post
    ...The Rare Genomics Institute BeHEARD (Helping Empower and Accelerate Research Discoveries) Challenge provides...our fourth year working with the Rare Genomics Institute by providing plasmid-based tools for rare disease...Addgene to set up assays to see what molecules or proteins are involved in IL-36 release in keratinocytes... valve (an aortic valve that has two leaflets, instead of three) and acute aortic dissections (a tear ...standing interest in the biology of GPCRs and G proteins, with an emphasis on oligomerization, signalling...Resources Find out more about the Rare Genomics Institute and this year's BeHeard Award! ...

  8. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    ...plasmid is the correct expected size and contains the correct insert Sequence the regions that have been amplified...DNA. As a general rule, try to use an excess of insert compared to the backbone plasmid; a starting point...point could be a molar ratio of 1:2 (plasmid:insert), but this parameter has to be optimized according...transforming the ligation mix in different bacterial strains (stbl2, NEB stable, etc.), and/or use a different...primers. If not, design primers to sequence your insert. When you get your sequencing results back, you...

  9. Hot Plasmids April 2018 - Protein Degradation, Nanoscopy, FIRE-Cas9, and Yeast Expression Tools

    Type
    Blog Post
    ... ZIF268 DNA binding domains fused to either the hER or hPR ligand binding domains and the MSN2 transactivation...Schuh labs. Clift et al. applied TRIM-away to nine proteins in ten ddifferent cell types, including difficult-to-manipulate...TRIM-Away is suitable for both short-and long-lived proteins, and it can even distinguish between protein variants... STED nanoscopy Article contributed by Eric J. Perkins Listen to Endosomal pH Sensors podcast segment ...plasmids encoding fluorescent reporters and other proteins controlled by GAL4 and ZIF268. To demonstrate ...

  10. Developing Lab Management Software for Biology

    Type
    Blog Post
    ... learned over the years with the hope that our insights can help steer you in the right direction when... in our current setup, there are no explicit instructions on what to do when something fails. While we... through which she could easily transfer her instructions for dealing with the samples to newer lab members... ourselves up for success by giving explicit instructions to lab members through the software if there...collisions you may encounter: vector, sequence, insert, trait, factor, expression, etc.There are also ...biology terms (plasmid, 5-prime, CRISPR, growth strains, vector backbone, etc.) and you simply don't have...

  11. What's New in CRISPR - November 2021

    Type
    Blog Post
    ...genomic deletions with or without small insertions. But, instead, PEDAR couples this deletion process to...mammalian cells, especially when fused to effector proteins for gene activation or gene editing. The more ... lab adapted the native PEG10 RNA sequences to instead drive packaging of cargo sequences in the capsid...it is also capable of coding concurrent small insertions to allow in-frame deletions and introduce epitope...mouse model of tyrosinemia, where a pathogenic insertion within the FAH gene was precisely corrected, restoring...

  12. CRISPR Meets Synthetic Biology: A Conversation with MIT’s Christopher Voigt

    Type
    Blog Post
    ...As Christopher Voigt explains it, his lab at the Massachusetts Institute of Technology has been “working...create an almost limitless number of DNA binding proteins with Cas9 guided by different promoters. The challenge... genetic circuits is getting enough regulatory proteins that don’t interfere with each other. CRISPR is...much easier it is to work with than regulatory proteins. There are still things we haven’t solved that...Nothing too much more sophisticated. There are also proteins, like antibodies. But we are really just using...

  13. Working with Nuclear Receptors

    Type
    Blog Post
    ...controlled by deliberate and compulsory actions instigated by the central nervous system signaling to peripheral...sensors for a diverse set of fat-soluble hormones, vitamins, and dietary lipids. Included in this family are...progesterone, androgens, and estrogens), fat-soluble vitamins A and D, thyroid hormone, fatty acids, oxysterols...composed of a tightly-bound invariant group of proteins, whereas the more loosely bound co-coregulators...explain how more than 300 different coactivator proteins individually contribute to cell regulation in ...acetyltransferase to luciferase, the basic assay remains widely used today.  The sheer abundance of these...

  14. Progress Towards a PAM-Free CRISPR

    Type
    Blog Post
    ...or non-existent PAM requirement, and how these proteins are advantageous in today’s genome editing landscape...the site in question (Kwart et al, 2017). To add insult to injury, the most utilized PAM sequence, that...requirements. Luckily, there are some available.   Cas proteins that don’t utilize NGG   There are plenty of Cas9...same PAM preference of NG was isolated by the Kleinstiver Lab (read more on this lab's other developments...developments below!) (Walton et. al, 2020). These Cas proteins have everything we know and love about Cas9, but...and location.   Nearly PAM-less editing   The Kleinstiver lab sought to address the PAM problem through...

  15. Degrading DNA with Cascade-Cas3

    Type
    Blog Post
    ..., and Cas11. Type I-E Cascades contains all five of these Cas proteins, while type I-C Cascades do not...boundaries defined by anti-CRISPR proteins or running into other proteins naturally bound to the DNA. Cas3...The helicase domain is then activated, and Cas3 begins unraveling the double-stranded DNA (dsDNA) in what...Cas9 vs. The Other Cas(s) CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems INTEGRATE: Bacterial...

  16. Common Injection Routes in Mice

    Type
    Blog Post
    ... as “instillation” or “gavage,” as they do not require any punctures. Intratracheal instillation Intratracheal...Skill required: advanced Intranasal instillation Intranasal instillation is very similar to its intratracheal...compounds, as circulation is slower, and more institutional oversight is required. Restraint: mechanical...Intratracheal instillation is used to deliver substances directly to the lungs. It is an advanced technique...

  17. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

    Type
    Blog Post
    ...encapsulating the genome is majorly composed of three proteins that can be easily modified in order to facilitate...provide a large transgene packaging capacity. For instance, with a packaging capacity of about 6 kb, the ...mechanism to knock out genes as a result of an insertion, a deletion or a frameshift (Ding et al., 2014...attribute this phenomenon to the presence of terminal proteins capping the ends of linear double-stranded AdV...several biological systems. It has been used for instance in inherited disorders such as B-thalassemia, ...steatohepatitis cancer. In deficiencies of plasma proteins where Adv vector delivery is often used, the CRISPR...

  18. Mobile-CRISPRi: Bringing CRISPRi to Diverse Bacteria

    Type
    Blog Post
    ...resistance selection markers, gRNAs, and dCas9 proteins. Second, it can be introduced into a broader range...tnsB, tnsC, tnsD, and tnsE), and a plasmid that contains the Mobile CRISPRi cassette flanked by left and...recipient's genome. Antibiotic plates lacking DAP select against donor bacteria and for recipients with an integrated...CRISPRi to non-model bacteria including pathogenic strains and environmental isolates. For example, Peters...expressed RFP reporter, was variable across bacterial strains, ranging from an ~8 to 150-fold reduction, with...the relative frequency of each of the 40 library strains was measured after 6 and 12 generations with or...

  19. Antibodies 101: Flow Compensation

    Type
    Blog Post
    ... depending on your flow cytometer’s setup. For instance, BV510 and AmCyan have almost identical emission...and how do I fix it? When plotting two channels against each other, you should be able to draw perpendicular...single-color APC control, with APC and APC-CY7 plotted against each other. Since it is a single-color control,...After increasing the compensation values for APC against APC-Cy7, the populations are in more of a straight...compensation value of five was applied to APC-Cy7 against APC to correct for this bleed. A compensation value...population is not a double-positive population and is instead due to bleeding, you will see the populations move...

  20. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    ... myself writing AAV production tricks into the margins of my protocol. While these tips weren’t critical...replication uses the host’s polymerase, but requires Rep proteins to process a double-stranded intermediate into...cultures of your AAV transfer plasmid at 30 °C instead of 37 °C and then screen for ITR recombination ...transform AAV transfer plasmids into bacterial strains, like NEB Stable. NEB Stable competent cells lack... should consider performing PEG precipitation. Instead of sonicating the cell pellet, I lyse the cells... Stone and Harshana de Silva Feelixge at Fred Hutchinson Cancer Center for teaching me about AAV production...
Showing: 441 - 460 of 1050 results