Key result
Modulation by MinK, MiRP1, and MiRP2 slowed Kv3.1 and Kv3.2 channel activation and deactivation and accelerated inactivation, creating functionally diverse channel complexes.
Population
Chinese hamster ovary cells expressing cloned Kv3.1 and Kv3.2 potassium channel alpha subunits from rat
Comparison
Co-expression with MinK, MiRP1, and MiRP2… vs Homomeric Kv3 channels without ancillary subunits
Design
Preclinical
Authors
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MiRP2 slows Kv3.1 activation in CHO cells; leaves open native roles in neurons or heart.
MinK, MiRP1, and MiRP2 dynamically expand the functional repertoire of Kv3.1 and Kv3.2 potassium currents by altering their gating kinetics.
Lewis et al. (2004) studied this question. MinK, MiRP1, and MiRP2 coassembly vs. Homomeric Kv3 channels was evaluated on Channel gating kinetics (activation, deactivation, and inactivation). Modulation by MinK, MiRP1, and MiRP2 slowed Kv3.1 and Kv3.2 channel activation and deactivation and accelerated inactivation, creating functionally diverse channel complexes.
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