<human>: Question: What gene is responsible for coding for a sodium channel necessary for conducting pain nerve stimuli?
Answer: A very rare syndrome with isolated congenital insensitivity to pain has been linked with mutations in the SCN9A gene, which codes for a sodium channel (Nav1.7) necessary in conducting pain nerve stimuli.
 Is the question answered in a satisfactory fashion?

OPTIONS:
- yes
- no
<bot>: yes