PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34394914-5 2021 The dystonic symptoms responded very well to levodopa treatment, and genetic analysis identified a novel heterozygous mutation in the C-terminal catalytic domain of GCH1. Levodopa 45-53 GTP cyclohydrolase 1 Homo sapiens 165-169