ClinVar

Description

The c.1025G>A variant in MYOC is a missense variant predicted to cause substitution of Arginine by Lysine at amino acid 342 (p.Arg342Lys). This variant was not found in any population of gnomAD (v2.1.1), meeting the <= 0.0001 threshold set for PM2_Supporting in a population of at least 10,000 alleles. The REVEL score = 0.649, which was neither above nor below the thresholds for PP3 (>= 0.7) or BP4 (<= 0.15), predicting a damaging or benign impact on MYOC function. There was no functional evidence predicting a damaging or benign impact of this variant on MYOC function. 2 probands with primary open angle glaucoma have been reported carrying this variant (PMID: 12362081), which met PS4_Supporting (>= 2 probands). In summary, this variant met the criteria to receive a score of 2 and to be classified as a variant of uncertain significance (uncertain significance classification range -1 to 5) for primary open angle glaucoma based on the ACMG/AMP criteria met, as specified by the ClinGen Glaucoma VCEP (v1, 12 Oct 2021): PS4_Supporting, PM2_Supporting