Description
For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Pro491 amino acid residue in PTPN11. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 15985475, 19621452, 22465605). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (Invitae) indicates that this missense variant is expected to disrupt PTPN11 function. ClinVar contains an entry for this variant (Variation ID: 40550). This missense change has been observed in individual(s) with Noonan syndrome (PMID: 16358218, 17020470, 19077116, 22465605). In at least one individual the variant was observed to be de novo. This variant is present in population databases (rs397507539, gnomAD 0.0009%). This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 491 of the PTPN11 protein (p.Pro491Ser).
# | Sample | Method | Observation |
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Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences |
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1 | germline | unknown | not provided | not provided | not provided | | not provided | not provided | not provided | not provided |