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Cerebral Palsy v1.193 GNB1 Clare van Eyk reviewed gene: GNB1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 38693247; Phenotypes: Intellectual developmental disorder, autosomal dominant 42 MIM# 616973; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Cerebral Palsy v0.122 GNB1 Zornitza Stark Marked gene: GNB1 as ready
Cerebral Palsy v0.122 GNB1 Zornitza Stark Gene: gnb1 has been classified as Green List (High Evidence).
Cerebral Palsy v0.122 GNB1 Zornitza Stark Classified gene: GNB1 as Green List (high evidence)
Cerebral Palsy v0.122 GNB1 Zornitza Stark Gene: gnb1 has been classified as Green List (High Evidence).
Cerebral Palsy v0.121 GNB1 Danielle Ariti gene: GNB1 was added
gene: GNB1 was added to Cerebral Palsy. Sources: Expert list
Mode of inheritance for gene: GNB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GNB1 were set to 33528536; 32989326; 34531397; 30194818
Phenotypes for gene: GNB1 were set to Cerebral Palsy; Mental retardation, autosomal dominant 42 MIM# 616973
Review for gene: GNB1 was set to GREEN
Added comment: 4 individuals in CP cohort reported with mono-allelic (3x de novo & 1x unknown inheritance) GNB1 variants. All individuals presented with impaired movement (dystonia, spasticity) and ID; additional features were growth delay, ADHD and seizures.

Additionally, all individuals had substitution affecting the p.Ile80 residue in exon 6 (28% of MRD42 cases carry variants at this residue and tend to present with Dystonia and growth delay more frequently than other residue-variant cases)
Sources: Expert list