| | ILRUN-AS1, IP6K3 +2582 more | Copy number gain | See cases | |
| | | Duplication | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | | Single nucleotide variant (intron variant) | not provided | |
| | | Single nucleotide variant (intron variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (intron variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (intron variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (intron variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (splice acceptor variant) | not provided | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (N256S) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R258H) | Single nucleotide variant (missense variant) | not provided +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (R259W) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (D261fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | | Deletion (inframe_deletion) | not provided | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (L264Q) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (A271D) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1-AS1, SYNGAP1 (R272Q) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (E273D) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (L274Q) | Single nucleotide variant (missense variant) | Global developmental delay | |
| | SYNGAP1, SYNGAP1-AS1 (K277fs) | Duplication (frameshift variant) | SYNGAP1-related disorder +2 more | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R279W) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (C282S) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (C282R) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (E283fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (L284P) | Single nucleotide variant (missense variant) | SYNGAP1-related disorder | |
| | SYNGAP1, SYNGAP1-AS1 (M289fs) | Duplication (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (D287Y) | Single nucleotide variant (missense variant) | Inborn genetic diseases | |
| | SYNGAP1, SYNGAP1-AS1 (D287H) | Single nucleotide variant (missense variant) | SYNGAP1-related developmental and epileptic encephalopathy | |
| | SYNGAP1, SYNGAP1-AS1 (D287A) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (D288N) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (M289V) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (M289T) | Single nucleotide variant (missense variant) | SYNGAP1-related disorder | |
| | SYNGAP1, SYNGAP1-AS1 (Y291C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R293C) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (R293fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R293P) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Indel (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1-AS1, SYNGAP1 (T295fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (S296A) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (P298S) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R299C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (R299H) | Single nucleotide variant (missense variant) | Inborn genetic diseases +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1-AS1, SYNGAP1 (R299fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (S300F) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (A301T) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +2 more | |
| | SYNGAP1, SYNGAP1-AS1 (D304N) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (T305A) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (V306D) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (W308R) | Single nucleotide variant (missense variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (G309fs) | Deletion (frameshift variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (W308C) | Single nucleotide variant (missense variant) | not provided +1 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (E310K) | Single nucleotide variant (missense variant) | not provided +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (E310G) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (E310D) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (E313fs) | Duplication (frameshift variant) | Neurodevelopmental disorder | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (E313*) | Single nucleotide variant (nonsense) | Intellectual disability, autosomal dominant 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1-AS1, SYNGAP1 (L317fs) | Deletion (frameshift variant) | not provided | |
| | SYNGAP1, SYNGAP1-AS1 (P318L) | Single nucleotide variant (missense variant) | not provided +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (V320I) | Single nucleotide variant (missense variant) | not specified | |
| | SYNGAP1, SYNGAP1-AS1 (V320L) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R321C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R321H) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (L323R) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R324W) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R324Q) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (L327P) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R329H) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (K334fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R335C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (R335H) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (K337del) | Microsatellite (inframe_deletion) | not provided +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (G341fs) | Indel (frameshift variant) | Intellectual disability, autosomal dominant 5 +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (G341fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (Y342S) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (Y342C) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (V343I) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (G344S) | Single nucleotide variant (missense variant) | Intellectual disability, autosomal dominant 5 +1 more | |
| | SYNGAP1, SYNGAP1-AS1 (V348M) | Single nucleotide variant (missense variant) | See cases | |
| | SYNGAP1, SYNGAP1-AS1 (P349S) | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (synonymous variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (T352fs) | Deletion (frameshift variant) | Intellectual disability, autosomal dominant 5 | |
| | SYNGAP1, SYNGAP1-AS1 (T352N) | Single nucleotide variant (missense variant) | Inborn genetic diseases | |