A Homozygous deletion in the C-erbA-beta thyroid hormone receptor gene in a patient with generalized thyroid hormone resistance : isolation and characterization of the mutant receptor / by Jay B. Menke.

Author/creator Menke, Jay B. author.
Other author Usala, Stephen J., degree supervisor.
Other author Allen, Wendall E., degree supervisor.
Other author East Carolina University. Department of Biology.
Format Theses and dissertations
Production1992.
Descriptioniv, 49 leaves : illustrations ; 28 cm
Supplemental ContentAccess via ScholarShip
Subjects

Summary Different point mutations have been identified in the T3-binding domain of the C-erbA-beta thyroid hormone receptor gene that are associated with variant phenotypes of generalized resistance to thyroid hormone (GRTH). A novel genetic abnormality has been identified in the T3- binding domain of the beta-receptor in a Kindred S. One patient, S1, was homozygous for this defect. Heterozygotes from Kindred S harbored a CAC-deletion at nucleotides 1295-1297 in one allele which resulted in the deduced loss of threonine at codon 332. Patient S1 had two mutant alleles for the same deletion mutation. A fibroblast C-erbA-beta cDNA was cloned from patient SI and was used to create a full-length mutant cDNA. The Kindred S mutant receptor was synthesized in vitro and did not bind T3, but did bind to thyroid hormone response elements (Wondisford et al., 1990) . These properties can account for the dominant negative activity of the Kindred S receptor. This study demonstrates the crucial role of C-erbA-beta in mediating thyroid hormone action in man. Furthermore, The homozygous genotype demonstrates a role for C-erbA-alpha, another T3 hormone gene receptor, not linked to GRTH.
General noteSubmitted to the faculty of the Department of Biology.
General noteAdvisor: Stephen J. Usala
General noteAdvisor: Wendall E. Allen
General noteAbstract title reads: A homogygous deletion in the C-erbA-beta thyroid hormone receptor gene in a patient with generalized resistance to thyroid hormone.
Dissertation noteM.S. East Carolina University 1992
Bibliography noteIncludes bibliographical references (leaves 44-49).
Genre/formdissertations.
Genre/formAcademic theses.
Genre/formAcademic theses.
Genre/formThèses et écrits académiques.