This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Mutation in Hartnup's disease is 
Select and explain. 
A. SLC6A18, B. SLC6A17, C. SLC6A19, D. SLC6A20
C: SLC6A19
Answer: C: SLC6A19 
Explanation: SLC6A19 gene encodes neutral amino acid transporter. Its mutation is seen in Hartnup's disease.