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Methods

  • OR vectors were purchased from OriGene and transfected into XL-10 Gold Ultracompetent cells by heat shocking at 42 °C

  • Cells were cultured in LB broth to amplify vectors

  • DNA gels were run with specific restriction enzymes to determine multiple cloning sites

Nucleofection of bacteria cells

  • Relevant Documents

    • Qiagen Maxiprep Protocol

    • XL10-Gold (R) Ultracompetent Cells

    • Lipofectamine (R) 2000 Reagent

    •  DNA Cloning

    • PCR-Based Cloning

    • GelPilot (R) DNA Molecular Weight Markers

    • Traditional Cloning Quick Guide, New England BioLabs (R)

    • GelPilot (R) DNA Loading Dye, 5x

    • QIAquick (R) Gel Extraction Kit

Western Blotting

  • HT-22 cells were lysed in RIPA buffer with phosphate and protease inhibitors

  • Protein concentration was measured for each OR

  • Proteins were prepared with Laemmle sample buffer before loading into 4% Bis-Tris gels to measure protein purity and size

  • Relevant Documents

    • Western Blotting Protocol

Confocal Microscopy

  • HT-22 cells were fixed with 4% paraformaldehyde and immunohistochemistry with antibodies responsible for individual OR binding  followed by secondary antibodies for visualization

Action Potential Measurements

  • Nucleofected HT-22 cells were stimulated with individual odorants

  • The neurons generated action potentials that were measured via a microelectrode array

  • Relevant Documents

    • Staining with Voltage Sensitive Dyes

EXPERIMENTS

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