Undiagnosed metabolic disorders
Gene: DDC
The neurometabolic transmitter disorder aromatic L-amino acid decarboxylase deficiency (AADCD) is caused by variants in the DDC gene. So far, in 123 known patients, 79 disease-causing variants in the DDC gene have been described and listed in the locus specific database PNDdb (http://biopku.org/home/pnddb.asp) (Himmelreich, 2019).Created: 25 Feb 2020, 1:13 p.m. | Last Modified: 25 Feb 2020, 1:13 p.m.
Panel Version: 1.413
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Aromatic L-amino acid decarboxylase deficiency 608643; floppy child; dystonia; hypotonia; developmental delay; oculogyric crisis
Publications
Comment when marking as ready: Associated with phenotype in OMIM and as a confirmed Developmental Disorder Gene / G2P. At least 7 variants reported.Created: 17 Jan 2017, 3:07 p.m.
Amber review assigned as this gene is Green on the V1 panel(s) named as a phenotype(s)Created: 6 Jan 2017, 1:57 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Intellectual disability
Publications for gene: DDC were set to 27604308; 24816252
Phenotypes for gene: DDC were changed from Aromatic L-amino acid decarboxylase deficiency 608643 to Aromatic L-amino acid decarboxylase deficiency, OMIM:608643; Aromatic L-amino acid decarboxylase deficiency, MONDO:0012084
Construction of “Undiagnosed Metabolic Disorders” (UDM) panel • The 614 genes from the neurometabolic gene panel (PMID: 27604308) added • Green genes downloaded from V1 metabolic panels (Cerebral folate deficiency, Congenital disorders of glycosylation, Hyperammonaemia, Ketotic hypoglycaemia, Mitochondrial disorders, Mucopolysaccharideosis, Gaucher, Fabry, Peroxisomal disorders), sources replaced with "Expert review green", then loaded as a review onto UDM panel, resulting in 367 green genes and 333 red (therefore 86 new green genes included from the additional metabolic panels that weren't previously on the UDM panel) • Downloaded green genes from all panels. Removed genes from none V1 panels. Removed genes from the metabolic panels mentioned above. Compared the remaining genes with the red genes from UDM panel. Loaded as an "Expert review Amber" review to the overlapping genes, (the panel name where the genes came from was used as the phenotype) • Used variant information from PMID 27604308 to review the genes on this panel • Reviewed genes on UDM panel with genes from Emory "Inherited Metabolic Disorders: Sequencing Panel" and UKGTN “Inborn Errors of Metabolism 226 panel”, changing status where appropriate, added 14 UKGTN genes that had not be listed before • Review 10 red genes that had not previously been reviewed, 4/10 were reclassified as green • Review the remaining 145 red genes that had not previously been reviewed (shared between reviewers EM, RF, LD, AT, HB, ON & SL), resulting in 60 green, 11 amber, 70 red, 4 I don’t know reviews) • Reviewed genes from PMID: 24816252 as a publication to genes found in the Inborn error or metabolism Genes metabolomics GWAS paper (figure 5). 2 new genes added
This gene has been classified as Green List (High Evidence).
This gene has been classified as Green List (High Evidence).
DDC was added to Undiagnosed metabolic disorderspanel. Sources: UKGTN,Emory Genetics Laboratory,Illumina TruGenome Clinical Sequencing Services,Radboud University Medical Center, Nijmegen
Phenotypes for gene DDC were set to Aromatic L-amino acid decarboxylase deficiency 608643
DDC was added to Undiagnosed metabolic disorderspanel. Source: Expert Review Amber Model of inheritance for gene DDC was set to BIALLELIC, autosomal or pseudoautosomal
DDC was added to Undiagnosed metabolic disorderspanel. Sources: Literature
DDC was created by sleigh