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 |
| Production | 1992. |
| Description | iv, 49 leaves : illustrations ; 28 cm |
| Supplemental Content | Access 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 note | Submitted to the faculty of the Department of Biology. |
| General note | Advisor: Stephen J. Usala |
| General note | Advisor: Wendall E. Allen |
| General note | Abstract title reads: A homogygous deletion in the C-erbA-beta thyroid hormone receptor gene in a patient with generalized resistance to thyroid hormone. |
| Dissertation note | M.S. East Carolina University 1992 |
| Bibliography note | Includes bibliographical references (leaves 44-49). |
| Genre/form | dissertations. |
| Genre/form | Academic theses. |
| Genre/form | Academic theses. |
| Genre/form | Thèses et écrits académiques. |