nervous system
• whole-cell electrophysiology recordings from mutant DRG neurons show on average larger proton-gated currents relative to wild-type neurons, due to a contribution of effects upon both transient (ASIC-like) and sustained (non-ASIC-like) currents, at different pH
• in mutant DRG neurons, sustained currents are significantly greater at pH 5.0 and 4.0, but not at pH 6.0, relative to wild-type neurons
• transient currents are significantly greater at pH 6.0, but not at lower pH values
• transient currents in mutant DRG neurons inactivate significantly more rapidly at pH 4.0, but not at pH 5.0
• no significant differences are observed in the magnitude of either ATP-activated or voltage-gated inward currents
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behavior/neurological
N |
• homozygotes are viable and display no overt neurological phenotypes
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