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We narrowed to 633 results for: gats

Showing: 81 - 100 of 633 results
  1. Lentiviral Prep Service

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    ... Cas9 Lentivirus Cas9 viruses can be used to interrogate the genome in a variety of ways. Cas9 proteins...
  2. AAV Molecular Tools

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    ...Flp-dependent Flp-dependent expression of the voltage-gated Na+ channel mNaChBac and (physically separate) tdTomato...
  3. Ras Pathway

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    ...vectors from the Esposito Lab for use with the Gateway® Cloning Platform (Life Technologies™) to permit...
  4. The Pleiades Promoter Project

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    ...pEMS1281 EGFP/NLS Ple250 VIP pEMS1722 intron-lacZ/NLS Negative Control N/A pEMS1312 cre N/A N/A pEMS1301 cre/...
  5. Antibodies 101: Reading a Flow Plot

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    ...everything outside the gate is a different population.  Gating and plot orders  As the gates progress from broadest...order you use them in, is known as your gating strategy.  Gating Strategies   The series of markers you...This shape is called a ‘gate’; it tells the machine that everything inside the gate is one population and...identified and isolated.  Following a gating strategy Figure 4 shows a gating strategy from a published experiment...differentiate cells from debris. Cells are gated, and in the gated population, two types of FSC are used to...decided to place their gates on the plots! Flow data is messy, so learning how to gate takes a lot longer ...numbers by gated populations; this indicates the percentage of total events contained in the gated population...
  6. Antibodies 101: Beyond Surface Labeling

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    ...simply “dump” them by gating on the negative population.     Figure 2: Dump gating labels all unwanted...usually conjugated to a fluorophore, not every marker will have a corresponding fluorophore-conjugated antibody...cells of interest via FACS using negative selection is called dump gating. Let’s say we want to sort out...cells. As a result, the largely negative live cells can still be easily gated on during the analysis. Conclusion...surface, dump gating is a useful way to get rid of undesired cell populations. Dump gating uses the same...for different markers, making it easy to gate on the negative cell population. To detect non-surface markers...Harvard Medical School. His projects include investigating negative regulators of T cells and cytokine signaling...
  7. Antibodies 101: The Four ELISAs and When to Use Them

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    ...directly conjugated detection antibodies or unconjugated detection antibodies followed by conjugated secondary... antibody can be directly conjugated with a reporter enzyme or a conjugated secondary antibody can be ...available and appropriately conjugated antibody. While labs can conjugate antibodies themselves, the process...components can interfere with conjugates. Make sure to do your research before conjugating at the bench.   Indirect...indirect method uses both an unconjugated primary antibody and a conjugated secondary antibody. Incorporating... primary antibody does not need to be conjugated, and conjugated secondary antibodies are easy to find...antibody may either be conjugated directly with the reporter enzyme or used with a conjugated secondary antibody...
  8. When Fidelity Matters: A frank discussion about ligase fidelity

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    ...highly active in nick ligation and DNA end-joining, but will also efficiently ligate many undesirable structures...T4 DNA Ligase, can ligate nicks containing one or more mismatches near the ligation junction with high...side of the ligation junction (the base pair providing the 3 ́-OH terminus to the ligation) than on the...the base at the ligation junction. Thus, all four bases at either side of the ligation junction were represented...plasmid construction (restriction cloning), adaptor ligation for next generation sequencing (NGS) library construction...commonly utilized in vitro, Taq DNA ligase will ligate only nicks (5-8). Taq ligase is a NAD+-dependent... for others, there is a need for the exclusive ligation of fully base-paired nicks with no gaps. For example...
  9. Plasmids 101: Restriction Cloning

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    ... useful for the ligation step. 3. Ligate Your Insert into Your Vector In the ligation step, you mix your...to insert. It is critical to set up a negative control ligation reaction with no insert DNA added. This...transformations after a ligation: 1. Control Transformation containing the ligation mixture with backbone...successful and unsuccessful ligations are indicated below. A successful ligation will have few colonies on... in the ligation reaction. 5. Purify the finished plasmid   Once it looks like your ligation has worked...When cloning by restriction digest and ligation, you use restriction enzymes to cut open a plasmid (backbone... Before beginning the restriction digest and ligation process, you should carefully choose your backbone...
  10. Plasmids 101: 5 factors to help you choose the right cloning method

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    ...to carry out a pooled set of ligations in an hour or less. The ligations combine the fragments in an order...restriction digests, gel purifications, or ligations. The general Gateway cloning protocol is fairly flexible...prevent any non-recombinant vectors from propagating. The ligation-independent methods like Gibson and SLIC...Golden Gate assembly allows one to simultaneously complete an ordered set of scarless ligations following... demanding results. If you’re in a hurry, Golden Gate cloning might be for you. This methodology relies... These fragments can be pooled in one tube and ligated in as little as 30 minutes! Alternatively, you ...overhangs in the backbone. Once combined, the cut and ligation processes happen in a matter of minutes. Cost...
  11. Antibodies 101: Flow Cytometry Controls

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    ...the Ly6C negative population from the Ly6C positive population. Figure 2: An FMO gating example....in the later gates, are more likely to require FMOs. Isotypes Isotype controls are negative controls that... They are made up of compensation beads and a conjugated antibody. Compensation beads are a mixture between...between synthetic beads that can bind to a conjugated antibody and beads that are unable to bind to them...beads create an artificial positive (bound) and negative (unbound) population. The benefit of beads is ...room on the plot to see all of your positive and negative cells. This can be achieved by adjusting your ...stands for fluorescence minus one. It is used as a negative control for a specific marker in your experiment...
  12. 22 Hot Plasmid Technologies from 2014

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    ...system combining the advantages of Golden Gate and Multisite Gateway cloning methods developed by the lab ...constructs. As the name suggests, GreenGate is based on the Golden Gate cloning method, but has been modified...component plasmids from building blocks via Golden GATEway Cloning Frustrated by the complexity of assembling...just the set of tools that you need. The Golden GATEway cloning kit simplifies the cloning process for ...sequences for a desired component are cloned into Golden Gate entry vectors via traditional restriction enzyme...oligonucleotides. These entry vectors are used in a Golden Gate cloning step to assemble the individual components...the destination vectors are used with Multisite Gateway cloning to generate the final construct. Up ...
  13. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

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    ... to propagate because CcdA wasn’t available to counteract the toxin. If, however, an investigator were...recombinant plasmid to propagate. Any cells that contained non-recombinant vectors (re-ligated empty vectors, ...ccdB aspect, Gateway takes advantage of the same principle that cells will not propagate while expressing...recently developed Gibson Assembly Cloning and Gateway® cloning technologies, as well as several others...focus on a unique gene that makes the popular GatewayTM method possible: ccdB. But what is ccdB, what ... to thoroughly screen colonies for the insert. Gateway® technology (developed by InvitrogenTM) is essentially...insertion will completely replace ccdB with the investigator’s insert of interest. Hence correct clones are...
  14. Antibodies 101: Flow Cytometry

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    ...cells are passed through the path of a laser and interrogated with various visible and fluorescent light sources...path of the laser in single-file where it is interrogated by the optical system (Figure 1).   ...a variety of fluorescent light sources. When interrogated with a fluorescent light source, a cell expressing...expression, the further the shift of a cell from the negative control, the higher the level of expression. A...  Protein expression, measured using antibody conjugated fluorophores Fluorescent antibodies get around...staining, the primary antibody against a target is conjugated to a fluorochrome. In indirect staining a primary...antibody binds to a target and a fluorochrome-conjugated secondary antibody binds to the primary antibody...
  15. Flow Cytometry Readouts: Yes, No, and Everything in Between

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    ... present in the gate.   Figure 1: Example of yes-no flow plot of the (negative) control (left)...MFI, you can still continue gating populations of interest with normal gates, just based on a histogram...way, the GFP- population should overlap with the negative control population (Figure 1). Based on where ...where the GFP- population ends, you can draw a gate which selects anything to the right of it, marking it ...left) or with the sample (right). Negative and positive samples are clearly distinguishable as two separate...treatment processes, you may see a shift in the negative population, so it no longer overlaps with the ...from Figure 2 that determining where to place your gate based on the dot plot would be complicated.  ...
  16. CRISPR 101: Multiplex Expression of gRNAs

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    ...methods such as Golden Gate or Gibson assembly. Golden Gate Assembly of gRNAs Golden Gate Assembly uses Type...needed for the final ligation step. Plasmids are then digested using BsmBI and ligated into Cas9 or dCas9...lab. Scaling up your multiplexed gRNAs with Golden Gate and Gibson assembly methods If you want to scale...destination vector. The first step in CRISPR/Cas9 Golden Gate multiplexing is to clone the oligonucleotides specifying...the procedure will vary slightly.   Two Golden Gate options that are available from Addgene follow these...repression), and Fok1-dCas9 (dimeric nuclease). Gateway assembly method Frew Lab Multiple Lentiviral Expression...should be compatible with type IIS enzyme BfuAI. Gateway cloning is then used to combine the multiple gRNAs...
  17. Plasmids 101: Broad Host Range Plasmids

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    ...RepB) necessary for replication in various hosts (Pagatto and Dillon 2001).  The plasmid has its own replication...self-transmissible, meaning that the plasmid is conjugative and carries the genes necessary for transfer ...with Shown to work in IncN pCU1 Gram-negative  Agrobacterium spp., Bradyrhizobium spp., Rhizobium...Rhizobium spp. IncP RK2 Gram-negative  Achromobacter parvulus, Acinetobacter spp., Aeromonas...campestris IncQ RSF1010, R300B, R1162 Gram-negative and Gram-positive  Acinetobacter calcoaceticus...campestris, X. maltophilia IncW pSa, pR388 Gram-negative  Acinetobacter calcoaceticus, Aeromonas liquefaciens...Zymomonas mobilis pBBR1 based pBBR1  Gram-negative  Alcaligenes eutrophus, Bartonella bacilliformis...
  18. Antibodies 101: Designing Your First Flow Panel

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    ...in combination of two conjugated single fluorophores, like APC-Cy7. Conjugating Cy7 to APC results in ...antibody is conjugated to. Since CD45 is a common marker, finding an antibody already conjugated to my fluorophore...Harvard Medical School. His projects include investigating negative regulators of T cells and cytokine signaling...proteins is through treating cells with fluorophore-conjugated antibodies that attach to a specific target. ...whether that fluorophore appears alone or in conjugation with another fluorophore. The brighter a fluorophore...fluorophore when excited by the red laser. When conjugated to Cy7, however, (APC-Cy7) the brightness changes...fluorescent reporters, such as GFP, and fluorophore-conjugated antibodies together in the same color panel. ...
Showing: 81 - 100 of 633 results