Christopher J. Cockcroft

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Voltage-sensing domains (VSDs) play diverse roles in biology. As integral components, they can detect changes in the membrane potential of a cell and couple these changes to activity of ion channels and enzymes. As independent proteins, homologues of the VSD can function as voltage-dependent proton channels. To sense voltage changes, the positively charged(More)
Members of the six-transmembrane segment family of ion channels share a common structural design. However, there are sequence differences between the members that confer distinct biophysical properties on individual channels. Currently, we do not have 3D structures for all members of the family to help explain the molecular basis for the differences in(More)
This chapter describes immunochemistry-based methods to investigate recycling of membrane proteins at the cell surface. Two methods are described, one qualitative and the other quantitative. Both methods consist of two rounds of extracellular antibody capture. Firstly, a primary antibody is captured by an extracellular epitope presented by the target(More)
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