Comprehensive analysis of RET gene should be performed in patients with multiple endocrine neoplasia type 2 (MEN 2) syndrome and no apparent genotype-phenotype correlation: an appraisal of p.Y791F and p.C634Y RET mutations in five unrelated Brazilian families.
The present study identified the clinical features of the largest multiple endocrine neoplasia type 2 (MEN2) A pedigree from China, with a novel double missense <i>rearranged during transfection (RET)</i> mutation (C634Y/D707E).
Three different known RET germline mutations in exon 11 (codon 634), p.Cys634Arg (c1900 T-->C) (de novo case), p.Cys634Phe (c1901 G-->T), p.Cys634Trp (c1902 C-->G), were detected in three individuals with MEN2 phenotype.
In this report, we describe a new kindred in which the MEN2 and HSCR phenotypes are associated with a single C620S point mutation at one of the cysteine codons of the extracellular domain of the ret protooncogene.
Some studies have suggested that the V804L mutation causes the low penetrance multiple endocrine neoplasia type 2 syndrome, with late onset and relatively indolent course, whereas others have reported that V804L and V804M have an aggressive potential.
Three different known RET germline mutations in exon 11 (codon 634), p.Cys634Arg (c1900 T-->C) (de novo case), p.Cys634Phe (c1901 G-->T), p.Cys634Trp (c1902 C-->G), were detected in three individuals with MEN2 phenotype.
In this report, we describe a new kindred in which the MEN2 and HSCR phenotypes are associated with a single C620S point mutation at one of the cysteine codons of the extracellular domain of the ret protooncogene.
Three different known RET germline mutations in exon 11 (codon 634), p.Cys634Arg (c1900 T-->C) (de novo case), p.Cys634Phe (c1901 G-->T), p.Cys634Trp (c1902 C-->G), were detected in three individuals with MEN2 phenotype.
In 46 cases of sporadic MTCs, we also studied the cosegregation of somatic RET gene mutation and G691S polymorphism as well as the linkage of the polymorphism with RET germline mutation in 60 members of eight multiple endocrine neoplasia type 2 families.
Occurrence of the Cys611Tyr mutation and a novel Arg886Trp substitution in the RET proto-oncogene in multiple endocrine neoplasia type 2 families and sporadic medullary thyroid carcinoma cases originating from the central region of Portugal.
Comprehensive analysis of RET gene should be performed in patients with multiple endocrine neoplasia type 2 (MEN 2) syndrome and no apparent genotype-phenotype correlation: an appraisal of p.Y791F and p.C634Y RET mutations in five unrelated Brazilian families.
Comprehensive analysis of RET gene should be performed in patients with multiple endocrine neoplasia type 2 (MEN 2) syndrome and no apparent genotype-phenotype correlation: an appraisal of p.Y791F and p.C634Y RET mutations in five unrelated Brazilian families.
Identification of the Cys634-->Tyr mutation of the RET proto-oncogene in a pedigree with multiple endocrine neoplasia type 2A and localized cutaneous lichen amyloidosis.