| | | Single nucleotide variant (missense variant) | Mild global developmental delay +5 more | |
| | | Single nucleotide variant (missense variant +1 more) | Focal-onset seizure +10 more | |
| | | Single nucleotide variant (missense variant) | Global developmental delay +5 more | |
| | LOC126863188, SHANK3 (V688L) | Single nucleotide variant (missense variant) | not provided | |
| | | Copy number loss | Delayed speech and language development +1 more | |
| | | Duplication (nonsense) | Mild global developmental delay +1 more | |
| | | Copy number loss | Overgrowth +1 more | |
| | | Copy number loss | Atypical behavior +1 more | |
| | | Copy number loss | Atypical behavior +1 more | |
| | | Copy number gain | Delayed speech and language development +1 more | |
| | | Copy number gain | Atypical behavior +2 more | |
| | | Single nucleotide variant (nonsense) | Atypical behavior +3 more | |
| | | Single nucleotide variant (nonsense) | Atypical behavior +3 more | |
| | | Single nucleotide variant (nonsense) | Delayed speech and language development +3 more | |
| | | Deletion (frameshift variant) | Delayed speech and language development +3 more | |
| | | Single nucleotide variant (nonsense) | Atypical behavior +3 more | |
| | | Microsatellite (frameshift variant) | Atypical behavior +3 more | |
| | | Deletion (frameshift variant) | Atypical behavior +3 more | |
| | | Single nucleotide variant (nonsense) | Global developmental delay +5 more | |
| | | Single nucleotide variant (missense variant) | Delayed speech and language development +3 more | |
| | | Single nucleotide variant (missense variant) | Specific learning disability +5 more | |
| | | Single nucleotide variant (missense variant) | not provided +6 more | |
| | | Single nucleotide variant (missense variant) | Specific learning disability +5 more | |
| | | Single nucleotide variant (missense variant) | Specific learning disability +4 more | |
| | | Single nucleotide variant (missense variant) | Macrocephaly +5 more | |
| | | Single nucleotide variant (missense variant) | Abnormal facial shape +5 more | |
| | | Single nucleotide variant (missense variant) | Abnormal facial shape +5 more | |
| | | Deletion (frameshift variant) | Atypical behavior +6 more | |
| | | Deletion (frameshift variant) | Global developmental delay +3 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Migraine +6 more | |
| | | Single nucleotide variant (nonsense) | Autistic behavior +2 more | |
| | | Single nucleotide variant (intron variant +1 more) | Autistic behavior +2 more | |
| | | Deletion | Low-set ears +5 more | |
| | | Deletion | Atypical behavior +1 more | |
| | | Single nucleotide variant (nonsense) | Intellectual disability +3 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (missense variant) | not provided +4 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (missense variant) | Macrocephaly +4 more | |
| | SYNGAP1, SYNGAP1-AS1 (V568fs) | Duplication (frameshift variant) | Motor delay +3 more | |
| | | Deletion (frameshift variant) | Macrocephaly +4 more | |
| | | Single nucleotide variant (missense variant) | Atypical behavior +3 more | |
| | | Single nucleotide variant (missense variant) | Autistic behavior +3 more | |
| | | Single nucleotide variant (missense variant) | Craniosynostosis syndrome +10 more | |
| | | Single nucleotide variant (missense variant) | Inborn genetic diseases +8 more | GConflicting classifications of pathogenicity |
| | SYNGAP1, SYNGAP1-AS1 (R687*) | Single nucleotide variant (nonsense) | Pointed chin +15 more | GPathogenic/Likely pathogenic |
| | | Translocation | Brisk reflexes +29 more | |
| | | Complex | Clubfoot +9 more | |
| | | Translocation | Atypical behavior | |
| | | Inversion | Abnormal facial shape +1 more | |
| | | Inversion | Global developmental delay +6 more | |
| | | Translocation | Attention deficit hyperactivity disorder +13 more | |
| | | Translocation | Delayed speech and language development +5 more | |
| | | Translocation | Corpus callosum, agenesis of +24 more | |
| | | Translocation | Atypical behavior +4 more | |
| | | Translocation | Global developmental delay +9 more | |
| | | Translocation | Skin rash +7 more | |
| | | Translocation | Atypical behavior +2 more | |
| | | Translocation | Depression +10 more | |
| | | Translocation | Abnormal facial skeleton morphology +10 more | |
| | | Inversion | Accelerated skeletal maturation +12 more | |
| | | Translocation | Abnormality of vision +6 more | |
| | | Translocation | Myopia +8 more | |
| | | Single nucleotide variant (missense variant) | not provided +4 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant +1 more) | Global developmental delay +10 more | |
| | | Single nucleotide variant (missense variant +1 more) | Neurodevelopmental disorder +15 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (missense variant +1 more) | Alzheimer disease type 1 +20 more | GPathogenic/Pathogenic, low penetrance; other; risk factor |