ClinVar

Description

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant disrupts the p.Pro103 amino acid residue in VHL. Other variant(s) that disrupt this residue have been observed in individuals with VHL-related conditions (PMID: 18928468, 23407919, 30877234), which suggests that this may be a clinically significant amino acid residue. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt VHL protein function. ClinVar contains an entry for this variant (Variation ID: 219823). This variant has been observed in individual(s) with pheocromocytoma (PMID: 21463266). This variant is not present in population databases (ExAC no frequency). This sequence change replaces proline with alanine at codon 103 of the VHL protein (p.Pro103Ala). The proline residue is moderately conserved and there is a small physicochemical difference between proline and alanine.