| | | Single nucleotide variant (5 prime UTR variant) | not provided | |
| | | Duplication | Dystonia 5 +1 more | |
| | | Deletion | Dystonia 5 +1 more | |
| | | Insertion (inframe_insertion) | GTP cyclohydrolase I deficiency with hyperphenylalaninemia | |
| | | Single nucleotide variant (missense variant) | GCH1-related disorder | |
| | | Single nucleotide variant (synonymous variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Inborn genetic diseases +3 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | GCH1, LOC130055692 (R17fs) | Deletion (frameshift variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (5 prime UTR variant) | not provided | |
| | | Single nucleotide variant (intron variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (intron variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (synonymous variant) | GTP cyclohydrolase I deficiency +2 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant +1 more) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +2 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (nonsense) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +2 more | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +2 more | |
| | | Single nucleotide variant (intron variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (missense variant) | GTP cyclohydrolase I deficiency +1 more | |
| | | Single nucleotide variant (missense variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (5 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Insertion (inframe_insertion) | GTP cyclohydrolase I deficiency | |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +1 more | |
| | | Copy number loss | not provided | |
| | GCH1, LOC130055692 (D26fs) | Deletion (frameshift variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant +1 more) | not provided +2 more | |
| | | Single nucleotide variant (missense variant) | Inborn genetic diseases +3 more | |
| | | Duplication (frameshift variant) | Dystonic disorder | |
| | | Single nucleotide variant (missense variant) | 6-Pyruvoyl-tetrahydrobiopterin synthase deficiency | |
| | | Single nucleotide variant (missense variant +1 more) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (missense variant) | Inborn genetic diseases +2 more | |
| | | Deletion (frameshift variant) | not provided | |
| | | Single nucleotide variant (5 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (5 prime UTR variant) | GTP cyclohydrolase I deficiency +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dopa-responsive dystonia +1 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +1 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +2 more | |
| | | Single nucleotide variant (missense variant) | not specified +3 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (synonymous variant) | Dystonia 5 +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Dystonia 5 +3 more | |
| | | Single nucleotide variant (missense variant +1 more) | Dystonia 5 | |
| | | Duplication (frameshift variant +1 more) | Dystonia 5 | |