Total submissions: 1
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV001389783 | SCV001591255 | pathogenic | Charcot-Marie-Tooth disease type 2 | 2020-07-03 | criteria provided, single submitter | clinical testing | This sequence change is a gross deletion of the genomic region encompassing exons 7-8 of the MFN2 gene. Deletion of MFN2 exons 7-8 has been reported in at least 5 unrelated families with recessive, severe, early-onset axonal neuropathy. In all cases affected individuals were found to be compound heterozygous for a pathogenic missense variant and the exon 7-8 deletion. None of the carrier parents were reported to have symptoms (PMID: 21715711, 26114802). Analysis of mRNA isolated from blood of 2 affected individuals with exons 7-8 deletion showed a shortened transcript that may be susceptible to either nonsense mediated decay or, if translated, it is expected to result in an out of frame MFN2 protein starting at codon 200 followed by premature truncation (PMID: 21715711). For these reasons, this variant has been classified as Pathogenic. |