Sarah Leigh 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
Sarah Leigh Added comment: 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.
Sarah Leigh Added comment: 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.