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Aminoacidopathy v1.93 PAH Zornitza Stark Marked gene: PAH as ready
Aminoacidopathy v1.93 PAH Zornitza Stark Gene: pah has been classified as Green List (High Evidence).
Aminoacidopathy v1.93 PAH Zornitza Stark Classified gene: PAH as Green List (high evidence)
Aminoacidopathy v1.93 PAH Zornitza Stark Gene: pah has been classified as Green List (High Evidence).
Aminoacidopathy v1.66 PAH Sangavi Sivagnanasundram gene: PAH was added
gene: PAH was added to Aminoacidopathy. Sources: ClinGen
Mode of inheritance for gene: PAH was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PAH were set to 1301187, 13138177
Phenotypes for gene: PAH were set to phenylketonuria MONDO:0009861
Review for gene: PAH was set to GREEN
Added comment: Well-established gene-disease association. Affected individuals reported to have an inborn error of phenylalanine metabolism. LoF is the established mechanism of disease (PMID:1301187).

Classified as Definitive by ClinGen Aminoacidopathy GCEP on 24/04/2020
https://search.clinicalgenome.org/CCID:005722
Sources: ClinGen
Aminoacidopathy v1.47 GCH1 Sangavi Sivagnanasundram gene: GCH1 was added
gene: GCH1 was added to Aminoacidopathy. Sources: ClinGen
Mode of inheritance for gene: GCH1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: GCH1 were set to 20301681, 9749603, 10582612, 11026444, 15303002
Phenotypes for gene: GCH1 were set to GTP cyclohydrolase I deficiency MONDO:0100184
Review for gene: GCH1 was set to GREEN
Added comment: Classified Definitive by ClinGen Aminoacidopathy GCEP on 11/12/2020 - https://search.clinicalgenome.org/CCID:004935

AD individuals have less than 50% GTPCH activity suggesting a dominant negative mechanism of disease.

AR individuals are shown to have severe deficiency of GTPCH activity resulting in hhyperphenylalaninemia due to secondary PAH deficiency which can be detected on NBS.
Sources: ClinGen