TOPIC

Screening Assay Protocols Targeting the Nav1.7 Channel Using Qube High‐Throughput Automated Patch‐Clamp System

Journal

Current Protocols in Pharmacology

Author(s)

Binbin Qian, Sung Hoon Park and Weifeng Yu

Year

2020

This article describes the basic procedure for setting up the screening protocol and recording data for Nav1.7 on a Qube automated patch‐clamp system. Three protocols along with step‐by‐step details are provided. First, we describe a protocol to estimate V half, the voltage at which half of the channels are inactivated, using traditional steady‐state inactivation measurement as well as a new adaptive online estimation. Second, we establish a state‐dependent protocol using adaptive online V half measurement to obtain a concentration-response curve (CRC) on known reference blockers. Last, we introduce a use‐dependent protocol. In our hands, the sample reference demonstrated good state‐ and use‐dependent inhibition of Nav1.7.

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