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We narrowed to 567 results for: multi

Showing: 141 - 160 of 567 results

  1. Antibodies 101: The Four ELISAs and When to Use Them

    Type
    Blog Post
    ... the same overall process. First users coat a multiwell plate with a capture reagent. The capture reagent...conjugated antibody binds to antigen coated on the multiwell plate. In an indirect ELISA a primary antibody...the primary antibody. In a sandwich ELISA the multiwell plate is first coated with a capture antibody ...antibody can be used. In a competitive ELISA a multiwell plate is coated with a competing antigen (green...enzyme labeled antibody and then added to the multiwell plate. The more antigen in the sample, the less...method, users immobilize the target antigen on the multiwell dish and incubate it with a reporter conjugated... increases the sensitivity of the assay, since multiple secondary antibodies will bind to a single primary...

  2. Hot Plasmids - May 2022

    Type
    Blog Post
    ...barcodes for live cell clonal multiplexing by: Rachel Leeson Multiplexed images in live cells remains ...knock-ins Visual barcodes for live cell clonal multiplexing Improving flexibility for in vivo proximity...Viviana Gradinaru Lab has previously developed the multiplexed version of the Cre-mediated AAV Targeted Evolution...remains a challenge due to multiple factors, including limitations of number of flourescent proteins that can...lab has developed visual barcodes for clonal multiplexing of cells in live imaging application. Each visual...subclone, they were able to develop a 12-plex multiplex imaging system. Mixing the subclones within a ...researchers to avoid the off-target effects of hi-multiplexing within in a cell, while potentially allowing...

  3. Plasmids 101: Gateway Cloning

    Type
    Blog Post
    ...are required! Multiple fragment cloning You can use Gateway cloning to insert multiple DNA fragments ...of the Gateway Multisite plasmids available at Addgene, including the Frew Lab Multiple Lentiviral Expression...Expression Systems (MuLE) Kit, the MultiSite Gateway cloning kit, and MultiSite Gateway plasmids. Constant reading...highly efficient way to move DNA sequences into multiple vector systems. With the appropriate entry and...attL-entry vector. This fragment is inserted in a multiple cloning site (MCS) of an attL-containing entry...of the Gateway System for Protein Expression in Multiple Hosts. Curr Protoc Protein Sci. 2003 Feb;Chapter...

  4. Technical Design of a Western Blot

    Type
    Blog Post
    ...western blot. Polyclonal antibodies, which bind to multiple sites on an antigen, are cheap and can help amplify...sequencing. While rAbs are monoclonal, recombinant multiclonal antibodies — mixtures of different rAbs that ... likely higher background noise as well, and multiplexing is challenging and limited. Direct westerns ...sturdy membrane that can be stripped and reprobed multiple times. It doesn’t degrade during long-term storage...of protein. These enzymes cannot be used for multiplexing, and the solutions used to provide the chemilumescence...Fluorescent proteins, while more expensive, allow for multiplexing. They have a ten-fold greater dynamic range ...limited dynamic range, which means it may take multiple exposures for a blot with varying signals on it...

  5. Hot Plasmids - February 2022

    Type
    Blog Post
    ... amino acids, HA is nine), multiple repeats of the tag can recruit multiple frankenbodies to amplify the...genetic screening technique using Cas12a for multiplexed gene perturbation The Penn State Protein Ladder...genetic screening technique using Cas12a for multiplexed gene perturbation by: Gabrielle Clouse While ...method for screens. Cas12a’s ability to perform multiplex editing within a single expression cassette is...vs. Cas 12a expression cassettes when encoding multiple guides. While two guides require two arrays for...WSB2 genes using Cas12a’s ability to knock out multiple genes in parallel. Lastly, this Cas12a-based screening...compacted library. Overall, Cas12a’s ability to target multiple genes within a single cassette provides increased...

  6. Plasmids 101: Golden Gate Cloning

    Type
    Blog Post
    ...Unique 4 base overhangs can be used to assemble multiple fragments - up to 10 fragments are commonly assembled...fragment in an inverse orientation. This allows for multiple DNA components (promoters, genes, terminators,...editing which allowed for the ordered assembly of multiple DNA fragments to create TAL effector nucleases...plasmid, but it can also be adapted to express multiple gRNAs. Addgene has two Golden Gate-based gRNA ... 7 gRNAs into one destination vector, making multiplexing easy.  Disadvantages of Golden Gate cloning...genes of interest or destination vector contain multiple internal restriction sites that may not be amenable...Sequential amplification of cloned DNA as tandem multimers using class-IIS restriction enzymes. Lee JH, Skowron...

  7. CRISPR Activators: A Comparison Between dCas9-VP64, SAM, SunTag, VPR, and More!

    Type
    Blog Post
    ...activation experiments. In cases of multiplex gene regulation (activating multiple genes at once), however, SAM... peptide array to fused with multiple copies of VP64. By having multiple copies of VP64 at each loci of... of CRISPR/Cas systems, gene activation across multiple loci was an arduous process. When using zinc finger...upon the initial dCas9-VP64 method, so there are multiple options to choose from when looking to activate...Church G (2016) Comparison of Cas9 activators in multiple species. Nat Methods 13:563–567 . https://doi....vivo simultaneous transcriptional activation of multiple genes in the brain using CRISPR–dCas9-activator...

  8. New Viral Vectors - Summer 2024

    Type
    Blog Post
    ...AAV5 Optogenetics Yizhar New viral service with multiple serotypes pAAV_EF1a-DIO-PdCO-mScarlet-ER-miniWPRE...AAV5 Optogenetics Yizhar New viral service with multiple serotypes pAAV_hSyn-PdCO-EGFP-WPRE AAV1, AAV5...AAV5 Optogenetics Yizhar New viral service with multiple serotypes pAAV-CaMKIIa(0.4)-eOPN3-mScarlet-WPRE...AAV5 Optogenetics Yizhar New viral service with multiple serotypes pAAV-CAG-FLEX-rc [Jaws-KGC-tdTomato-ER2...AAV1, AAV9 Biosensors Li New viral service with multiple serotypes pAAV-hSyn-GRAB_OTmut AAV9 Biosensors... AAV9, PHP.eB Controls Feng New viral service, multiple serotypes Looking for more viral vectors? ... Multiple Authors...

  9. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    ...as those generated by multiplexed delivery of multiple sgRNAs. Since multiplexing is commonly used to create...by analyzing thousands of edits performed over multiple experiments and comparing the robustness, accuracy...edits is critical to the CRISPR workflow. For a multiplex sample, ICE includes visual representations of...visualization helps the researcher see which of the multiplexed sgRNA was involved in a particular edit, and ...can analyze indels that result from single or multiplex CRISPR-Cas9 double-strand DNA breaks using SpCas9...the wild type sequence.  If you are viewing a multiplex sample, the cut site will be aligned to the most...

  10. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    ... Sci 2013 May 1;126(Pt 9):2102-13. Assemble multiple component plasmids from building blocks via Golden...system combining the advantages of Golden Gate and Multisite Gateway cloning methods developed by the lab of...Finally, the destination vectors are used with Multisite Gateway cloning to generate the final construct...Up to eight entry vectors can be used for each Multisite Gateway compatible destination vector for a maximum...create recombination template vectors, to perform multiple site mutagenesis and create complex fusion or ...the set of plasmids required to make singly or multiply phosphorylated proteins (B40 OTS and pCRT7-GFP... DNA module in an inverse orientation, so that multiple DNA components can directionally assemble in a...

  11. New Viral Vectors - Fall 2024

    Type
    Blog Post
    ...Optogenetics Ofer Yizhar New viral prep with multiple serotypes pAAV-Syn-FLEX-rc[ChrimsonR-tdTomato...Biosensors GENIE Project New viral prep with multiple serotypes pGP-AAV-GFAP-iGABASnFR2(no bind)...Biosensors GENIE Project New viral prep with multiple serotypes pGP-AAV-syn-iGABASnFR2-WPRE AAV1...Biosensors GENIE Project New viral prep with multiple serotypes pGP-AAV-syn-iGABASnFR2(no bind)-...Biosensors GENIE Project New viral prep with multiple serotypes pGP-AAV-syn-flex-iGABASnFR2-WPRE...Biosensors GENIE Project New viral prep with multiple serotypes Looking for more viral vectors... Multiple Authors...

  12. Fluorescence Titering Assay

    Type
    Protocol
    ... lentiviral vector allows you to control the multiplicity of infection (MOI) in downstream studies. This...recommended to subject lentiviral supernatants to multiple freeze-thaw cycles. Procedure Seed 75,000 cells...percentage exceeds 40% you risk counting cells with multiple integration events leading to underestimation ...For a more accurate titer, take the average of multiple dilutions. Sample Data Figure 1: 293T cells were...

  13. A Control for All Seasons

    Type
    Blog Post
    ...complex experiments. A multiplexed experiment, for example, requires staining with multiple primary and secondary...The inclusion of biological replicates such as multiple mice in each group and C, technical replicates... example, it would be better to treat and test multiple mice with the drug rather than rely on the results...label control, and cross-reactivity control when multiplexing. A, wild-type and knockout samples are the gold... autofluorescence in the sample. D, when using multiple primary antibodies, include controls where each...address the spectral overlap that occurs during multiplexing. Compensation controls are single stained samples... each fluorophore and are critical to analyze multiplex flow cytometry experiments. We hope that this ...

  14. Antibodies 101: Choosing the Right Isotype

    Type
    Blog Post
    ...antibody) approach?  Staining for multiple targets When staining multiple targets indirectly, you must strategically...Some secondary antibodies are broad and recognize multiple isotypes from a species, like a general anti-mouse... be equally complex with users trying to probe multiple targets in parallel. In these cases, it is critical...cross-reactivity when planning your experiment.  When probing multiple targets in parallel, use the most narrowly specific...staining in parallel    In short, when staining multiple targets, look for primary antibodies raised in...subtype-specific secondary antibodies when staining multiple targets with monoclonal primary antibodies, and...

  15. Colony Formation Titering Assay

    Type
    Protocol
    ...lentiviral preparation allows you to control the multiplicity of infection (MOI) in downstream studies. This...recommended that lentiviral supernatants be subjected to multiple freeze-thaw cycles. This protocol outlines the...provide more accurate titers as the likelihood of multiple integration events decreases as the dilution increases...For a more accurate titer, take the average of multiple dilutions. Sample Data Figure 1: A549 cells were...

  16. Summer SciComm Series: Modes of Communication

    Type
    Blog Post
    ... pros of multiple channels/balance out cons. Flexible. Can allow people to learn in multiple ways from... (or both!) will be a major limiting factor at multiple points. Before you embark on a project, do your...Podcasts Medium Easy for audience to engage while multitasking. Easy to host guests remotely. Easy access from... possible through other means. Easy to combine multiple types of media. High barrier to entry (people ...from the same experience.  Can combines cons of multiple medias. Switching from one media type to another...another is cognitively demanding. Requires multiple areas of expertise.  Social Media Low to high Variety...

  17. Measuring Kinase Activity at the Single-Cell Level with Kinase Translocation Reporters (KTRs)

    Type
    Blog Post
    ... and simple to multiplex. Problems with FRET kinase reporters Difficult to Multiplex: FRET reporters...easy to multiplex. Their design allows flexible swapping of fluorescent proteins and multiplexing is simple...reporters are challenging to design and difficult to multiplex. The Covert Lab provides an alternative tool with...properties that limit which fluorophores can be multiplexed together. Challenging  to Design: FRET reporter...

  18. What is Polymerase Chain Reaction (PCR)

    Type
    Protocol
    ...DNA molecule (single gene perhaps) to be copied multiple times by Taq Polymerase. From a single copy of...Sterile dH 2 O (variable) Note: If you are doing multiple PCRs, save time by creating a “master mix,” which...concentration of PCR product. Master Mix Preparation Multiply the volume of each reagent by the number of individual...different reactions (7 unique primer pairs), so we multiply each volume by 7. In a single 1.5mL tube combine...

  19. Cre-ating New Methods for Site-specific Recombination in Drosophila

    Type
    Blog Post
    ...modifications in Drosophila using multiple recombinases. To make multiple, precise genome edits, the recombinases...to DNA damage and developmental aberrations. In multiple systems, Cre itself, without the presence of a... high recombinase levels. These data show that multiple recombinases can be used together to designate...for specific recombination patterns that require multiple recombinases. These tools should further enhance...editing capabilities in Drosophila. References: Multiple new site-specific recombinases for use in manipulating...

  20. Recombinase-based State Machines Enable Order-dependent Logic in vivo

    Type
    Blog Post
    ... achieved by expression of other recombinases. Multiple orthogonal attB-attP pairs per recombinase may...their recognition sites, or by excising one or multiple of their recognition sites from the register. ...primer pair. Then, by leveraging qPCR data from multiple primer pairs, one can infer the predominant state...The qPCR method can be performed on a sample of multiple registers. However, it is only semi-quantitative...is highly degenerate and often times there are multiple register designs that may be used to implement... gene regulation program. We recommend testing multiple register designs for the same gene regulation ...may work faster or more efficiently than others. Multiple large serine recombinases have been described ...
Showing: 141 - 160 of 567 results