Article: Cutaneous sensory neurons expressing the Mrgprd receptor sense extracellular ATP and are putative nociceptors.

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Dussor G; Zylka MJ; Anderson DJ; McCleskey EW
J. Neurophysiol., 2008

TABLE 1.Nociceptor-like properties of Mrgprd+ and Mrgprd– neurons



	Mrgprd+	n	Mrgprd–	n

Diameter, µm	20.1 ± 0.1	160	19.3 ± 0.3	184
Capacitance, pF	21.3 ± 0.4	178	17.2 ± 0.4	191
AP duration, ms	6.6 ± 0.3^*	26	5.2 ± 0.5	20
AP amplitude, mV	112.5 ± 3.2^*	26	104.2 ± 2.6	20
AP overshoot, mV	63.5 ± 2.3^*	26	56.9 ± 1.9	20
Rest potential, mV	–48 ± 1	22	–46 ± 2	19
Input resistance, GΩ	1.4 ± 0.1	48	1.6 ± 0.1	43
TTX_sI_Na, pA/pF	41.4 ± 5.9	24	52.7 ± 11.3	26
TTX_rI_Na, pA/pF	188.8 ± 9.7^**	24	132.8 ± 19.8	26

^* Cell body diameter was measured using a calibrated graticule. Statistical significance was determined using a two-tailed Student's t-test ( P < 0.05,). AP, action potential.

^** Cell body diameter was measured using a calibrated graticule. Statistical significance was determined using a two-tailed Student's t-test ( P < 0.01). AP, action potential.

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Inferred neuron-electrophysiology data values

Neuron Type	Neuron Description	Ephys Prop	Extracted Value	Standardized Value	Content Source
Other	Cutaneous Sensory Neuron	cell diameter	20.1 ± 0.1	20.1 (um)	Data Table
Other	Cutaneous Sensory Neuron	cell capacitance (pF)	21.3 ± 0.4	21.3 (pF)	Data Table
Other	Cutaneous Sensory Neuron	spike width (ms)	6.6 ± 0.3	6.6 (ms)	Data Table
Other	Cutaneous Sensory Neuron	spike amplitude (mV)	112.5 ± 3.2	112.5 (mV)	Data Table
Other	Cutaneous Sensory Neuron	spike peak (mV)	63.5 ± 2.3	63.5 (mV)	Data Table
Other	Cutaneous Sensory Neuron	resting membrane potential (mV)	-48.0 ± 1.0	-48.0 (mV)	Data Table
Other	Cutaneous Sensory Neuron	input resistance (GΩ)	1.4 ± 0.1	1400.0 (MΩ)	Data Table