A rapid screening method for the detection of mutations in the RET proto-oncogene in multiple endocrine neoplasia type 2A and familial medullary thyroid carcinoma families
- Royal North Shore Hospital, St. Leonards (Australia)
Multiple endocrine neoplasia type 2A (MEN2A) and familial medullary thyroid carcinoma (FMTC) are autosomal dominant inherited cancer syndromes with incomplete penetrance. Following the identification of mutations in the RET proto-oncogene that segregate with the disease phenotype in MEN2A, MEN2B, and FMTC, genetic screening of individuals with mutations in RET may be performed. The authors have employed restriction endonuclease digestion of polymerase chain reaction products as an alternative to sequence analysis for rapid identification of mutant gene carriers in families in which MEN2A and RMTC are segregating. Twenty-one Australasian MEN2A and FMTC families have been screened for mutations in a cysteine-rich region of the RET proto-oncogene. Seven independent mutations were identified in key individuals in 16 of these families. The authors have identified a mutation in codon 620, 2053 T {r_arrow}C (Cys620Arg), and two mutations in codon 634 of exon 11 of RET, 2095 T {r_arrow} C (Cys634Arg) and 2096 G {r_arrow} A (Cys634Tyr), all three of which were present in both MEN2A and FMTC families. 7 refs., 1 fig., 1 tab.
- OSTI ID:
- 255148
- Journal Information:
- Genomics, Vol. 23, Issue 2; Other Information: PBD: 15 Sep 1994
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mutations in exon 10 of the RET proto-oncogene in Hirschsprung`s disease
The RET protooncogene in sporadic pheochromocytomas: Frequent multiple endocrine neoplasias type 2 - like mutations and new molecular defects