Undiagnosed metabolic disordersGene: HARS2
Comment on phenotypes: Required for mitochondrial gene expression (Mitochondrial respiratory chain disorders (caused by nuclear variants only))
Created: 19 Sep 2019, 3:22 p.m. | Last Modified: 19 Sep 2019, 3:22 p.m.
Panel Version: 1.302
Comment on publications: PMID: 21464306: One family reported, with five affected siblings who were compound heterozygous for variants L200V and V368L. Functional evidence in c.elegans was provided. PMID: 27650058: patients with sporadic Perrault syndrome IV-1 and VI-I were homozygous for the c.1010A>G (p.Tyr337Cys) variant. The patients were claimed not to be related, but originated from the same region in Morocco and the variant was characterised as being in the same haplotype, suggesting a founder effect. Found at a frequency of 1/121332 in Exac.
Created: 19 Sep 2019, 3:20 p.m. | Last Modified: 19 Sep 2019, 3:20 p.m.
Panel Version: 1.301
Comment on list classification: This gene was discussed on the NHSE GMS Mitochondrial Specialist Group Meeting call on 25th February 2019. It was confirmed that Perrault syndrome was relevant for this panel, and that there was enough evidence for the gene to be Green.
Created: 19 Sep 2019, 3:19 p.m. | Last Modified: 19 Sep 2019, 3:19 p.m.
Panel Version: 1.300
Phenotypes for gene: HARS2 were changed from Required for mitochondrial gene expression (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); ?Perrault syndrome 2 614926 to ?Perrault syndrome 2 614926
Publications for gene: HARS2 were set to 27604308
Gene: hars2 has been classified as Green List (High Evidence).
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
HARS2 was added to Undiagnosed metabolic disorderspanel. Source: Expert Review Red Model of inheritance for gene HARS2 was set to BIALLELIC, autosomal or pseudoautosomal
HARS2 was created by sleigh
HARS2 was added to Undiagnosed metabolic disorderspanel. Sources: Literature