| | | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (nonsense) | Intellectual disability, autosomal dominant 5 +1 more | GPathogenic/Likely pathogenic |
| | | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (G391fs) | Deletion (frameshift variant) | not provided +2 more | |
| | SYNGAP1, SYNGAP1-AS1 (E519A) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R544*) | Single nucleotide variant (nonsense) | Inborn genetic diseases +2 more | |
| | SYNGAP1, SYNGAP1-AS1 (R575H) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (L595fs) | Deletion (frameshift variant) | not provided +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (R621*) | Single nucleotide variant (nonsense) | Intellectual disability, autosomal dominant 5 +2 more | |
| | SYNGAP1, SYNGAP1-AS1 (L633P) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | GPathogenic/Likely pathogenic |
| | SYNGAP1-AS1, SYNGAP1 (R736C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (P784L +1 more) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (L799fs +1 more) | Deletion (frameshift variant) | not provided +1 more | |
| | SYNGAP1-AS1, SYNGAP1 (L855fs +1 more) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (G991R +1 more) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | |
| | SYNGAP1-AS1, SYNGAP1 (Q1093* +1 more) | Single nucleotide variant (nonsense) | not provided +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (S1196F +1 more) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (R1240* +1 more) | Single nucleotide variant (nonsense) | Intellectual disability, autosomal dominant 5 +2 more | |
| | SYNGAP1, SYNGAP1-AS1 (T1305A) | Single nucleotide variant (synonymous variant +1 more) | Inborn genetic diseases +2 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (W1315R) | Single nucleotide variant (3 prime UTR variant +1 more) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (G1335S) | Single nucleotide variant (3 prime UTR variant +1 more) | Intellectual disability, autosomal dominant 5 | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (R1338Q) | Single nucleotide variant (3 prime UTR variant +1 more) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Copy number gain | not provided | |