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Molecular assay reagents intended to identify mutations in the protein tyrosine phosphatase, nonreceptor type 11 ( PTPN11) gene, located at chromosome 12q24.1, which encodes for a protein that generates signals within a cell that affect how those cells function and how often they divide. This is an oncogene. This genetic mutation has been identified in patients with Noonan\'s syndrome type 1, Noonan-like/multiple giant-cell lesion syndrome, and with a disease characterized by multiple lentigines, electrocardiographic conduction abnormalities, ocular hypertelorism, and pulmonary stenosis (LEOPS) syndrome (also known as LEOPARD syndrome).
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