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We narrowed to 1,025 results for: ELL

Showing: 201 - 220 of 1025 results

  1. Protocol - How to Run an Agarose Gel

    Type
    Protocol
    ...above the well. Very slowly and steadily, push the sample out and watch as the sample fills the well. After...perform gel electrophoresis. Equipment Casting tray Well combs Voltage source Gel box UV light source Microwave...the gel. Pour the agarose into a gel tray with the well comb in place. Pro-Tip Pour slowly to avoid bubbles...the gel. Any bubbles can be pushed away from the well comb or towards the sides/edges of the gel with ...sample causing it settle to the bottom of the gel well, instead of diffusing in the buffer. Once solidified...added EtBr to your gel, add some to the buffer as well. EtBr is positively charged and will run the opposite...of the gel. Note: When loading the sample in the well, maintain positive pressure on the sample to prevent...

  2. AAV Titration by qPCR Using SYBR Green Technology

    Type
    Protocol
    ...non-PCR–related fluorescence fluctuations and to minimize well-to-well variability that result from a variety of causes...mix into the wells. Reagent Amount for ONE Reaction Amount for 100 reactions (1 x 96 well plate) Universal...mix + water ). Add 15 μL of Master Mix per well and mix well by pipetting back and forth at least 5 times...by these institutions. This protocol is for a 96-well plate with 20 μL reaction volume. Last Update: February...buffer Nuclease-free water Microcentrifuge tubes 96-well optical plate Pipette tips General Considerations...pipetting error and variability Mix samples very well by pipetting back and forth multiple times at each...half of the final volume (mix with >50 uL if your well contains 100 uL) Use a multichannel pipette to load...

  3. Plasmid Cloning by Restriction Enzyme Digest (with Protocols)

    Type
    Protocol
    ...use electro-competent cells instead of the more common chemically-competent cells. The number of bacterial...alone control will tell you your “background” level or more specifically it will tell you how many colonies...might need to express YGOI in cultured mammalian cells. The problem is that the only version of full-length...phosphatase treatment of your recipient plasmid as well as a specifically designed test digest later to ...the recipient plasmid DNA without any insert will tell you how much background you have of uncut or self-ligating... manufacturer’s instructions for your competent cells. For most standard cloning, you can transform 1-...1-2μl of your ligation reaction into competent cells such as DH5alpha or TOP10. If using much less total...

  4. Plasmid Cloning by PCR (with Protocols)

    Type
    Protocol
    ...use electro-competent cells instead of the more common chemically-competent cells. The number of bacterial...alone control will tell you your “background” level or more specifically it will tell you how many colonies...the recipient plasmid DNA without any insert will tell you how much background you have of uncut or self-ligating... manufacturer’s instructions for your competent cells. For most standard cloning, you can transform 1-...1-2μl of your ligation reaction into competent cells such as DH5alpha or TOP10. If using much less total...colonies, you might want to use higher competency cells. Additionally, if your final product is going to...

  5. Coomassie Purity Stain of Recombinant Antibodies

    Type
    Protocol
    ...12% NuPage Novex bis-tris mini gel, 1mm thick, 10-well, Invitrogen NP0321BOX 20X MOPS SDS running buffer...Carefully remove the comb from the gel. Rinse each well with 200 µL 1X MOPS running buffer. Fill the chamber...the prestained protein ladder to the appropriate well. Pro-Tip When possible, skip one lane before loading...each recombinant antibody sample to the appropriate well. Pro-Tip Leaving clear lanes between samples will...cast open. Use a razor blade to cut the top of the wells and bottom part of the gel where dye is visible....samples may not have been processed correctly in the cell (e.g., failure to cleave the signal peptide) and...Scatter chart. Change the data range and select the cells where the x-axis is represented. Add a linear trendline...

  6. Protocol - Over-Agar Antibiotic Plating

    Type
    Protocol
    ...investigator to conveniently plate and select transformed cells containing plasmids differing in their resistance... the plasmids of interest (for example, fewer satellite colonies will grow). It is, however, more expensive...bent to create an “L” shape, and then used like a cell spreader. Several other devices may be used for.... During the incubation, transform DH5α E. coli cells by heatshock with the plasmid of interest. See our...the liquid is mostly absorbed. The spreading of cells can be done in the same way as the antibiotic, using... using either a bent micropipette tip or other cell spreading device that fits the plate. Incubate plates...

  7. Affinity Purification of Recombinant Antibodies with Protein A or Protein G

    Type
    Protocol
    ...how to affinity purify recombinant antibodies from cell culture supernatant using Protein A or Protein G...250 mg benzamidine 25 mL of 2 mg/mL aprotinin Mix well and sterilize through a 0.2 µm PES filter. Aliquot...buffer to 1 part tissue culture supernatant and mix well. Uncap the Protein G Gravitrap or rProtein A Gravitrap...after use. Carefully pour the filtered and diluted cell culture supernatant into the Gravitrap column. Collect...

  8. Protocol - How to Inoculate a Bacterial Culture

    Type
    Protocol
    ...bacterial cell. Large plasmids usually have a low copy number (approximately one or two copies per cell) and... can be present in large numbers, 50 or more per cell and have a high copy number. High copy number plasmids...increase this to 350 - 400 rpm to obtain a higher cell density. Reference Page Top Index...

  9. Video Library

    Type
    Protocol
    ... CRISPR Generate genomic deletions in mammalian cells lines using CRISPR/Cas9 Genomic Deletions with CRISPR... virus from a preparation produced in mammalian cells AAV Purification by Iodixanol Gradient Ultracentrifugation... the lab. Blog post: 10 Basic tips for mammalian cell culture Aseptic Technique Aseptic technique is a...fields such as microbiology, molecular biology or cell biology. Learn some of the key strategies of aseptic...

  10. Centrifugation

    Type
    Protocol
    ...dislodge any pellets or re-mix liquids. In cases where you are separating solids from a liquid, pellets represent...pointing up or out of the centrifuge so that the pellets form in approximately the same place in each sample...your experiment, you may be required to save the pellet, the supernatant, or both. Conclusion Centrifuges...

  11. AAV Purification by Iodixanol Gradient Ultracentrifugation

    Type
    Protocol
    ...suitable for virus purification and isolation of cells, organelles, lipoproteins, and macromolecules. Importantly..., iodixanol is inert and non-toxic to mammalian cells. Therefore, and unlike other density gradient media...interface. Make sure that the microcentrifuge tubes are well positioned to collect the solution, or you will ...

  12. Protocol - How to Create a Bacterial Glycerol Stock

    Type
    Protocol
    ...bacteria, preventing damage to the cell membranes and keeping the cells alive. A glycerol stock of bacteria... and you will not need to obtain more competent cells and retransform. Bacteria on an LB agar plate can...

  13. Protocol - How to Ligate Plasmid DNA

    Type
    Protocol
    ...complete plasmid can be transformed into bacterial cells for propagation. The majority of ligation reactions...Interpretation Uncut vector - Checks viability of competent cells and verifies the antibiotic resistance of the plasmid...and vector, and what ratio you want, and it will tell you exactly how much of each to use. Reference Page...

  14. Using a Light Microscope Protocol

    Type
    Protocol
    ...like microbes in a drop of pond water or the cells in your cell culture dish. Microscopes come in a huge ...transmission electron microscopes that allow us to see cellular components with science-fiction levels of detail...

  15. Gibson Assembly Protocol

    Type
    Protocol
    ...England Biolabs (NEB) (Link opens in a new window) sells DNA Assembly kits and master mixes, including NEBuilder...Assembly (Link opens in a new window) . They also sell ET SSB (Link opens in a new window) . NEB has other...

  16. Protocol - How to Design Primers

    Type
    Protocol
    ...another. The size of the primer is very important as well. Short primers are mainly used for amplifying a ...

  20. Water Bath Protocol

    Type
    Protocol
    ...restriction digests needed in molecular biology, and thaw cell lines. There are many different types of water baths...
Showing: 201 - 220 of 1025 results