| | | Duplication (frameshift variant +2 more) | Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination +1 more | |
| | | Single nucleotide variant (synonymous variant +1 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not specified | |
| | MTHFS, ST20-MTHFS (R82Q +2 more) | Single nucleotide variant (missense variant +1 more) | not specified | |
| | | Single nucleotide variant (missense variant +2 more) | not specified | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (R17* +2 more) | Single nucleotide variant (nonsense +1 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not specified | |
| | MTHFS, ST20-MTHFS (P88L +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (E141K +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (P98L +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (synonymous variant +2 more) | not provided | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | MTHFS, ST20-MTHFS (T202I +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (R96Q +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (synonymous variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (R60W +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (R27Q +2 more) | Single nucleotide variant (missense variant +1 more) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (non-coding transcript variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (V119L +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (T102I +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (synonymous variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (T50I +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (T178A +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | MTHFS, ST20-MTHFS (R25W +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (D132N +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (I95V +2 more) | Single nucleotide variant (missense variant +1 more) | not provided | |
| | | Single nucleotide variant (non-coding transcript variant +1 more) | not provided | |
| | | Single nucleotide variant (synonymous variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (M58V +2 more) | Single nucleotide variant (missense variant +2 more) | not provided | |
| | | Single nucleotide variant (non-coding transcript variant +1 more) | not provided | |
| | MTHFS, ST20-MTHFS (K106* +2 more) | Single nucleotide variant (nonsense +1 more) | Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination | |
| | | Single nucleotide variant (missense variant +2 more) | not specified +1 more | |
| | | Single nucleotide variant (synonymous variant +2 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | not provided | |
| | | Single nucleotide variant (synonymous variant +1 more) | not provided | |
| | | Insertion (non-coding transcript variant +1 more) | not provided | |
| | | Single nucleotide variant (missense variant +2 more) | Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination | |
| | MTHFS, ST20-MTHFS (R145Q +2 more) | Single nucleotide variant (missense variant +1 more) | not provided +1 more | GConflicting classifications of pathogenicity |
| | MTHFS, ST20-MTHFS (Q105* +2 more) | Single nucleotide variant (nonsense +1 more) | Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination | |