Naturally occurring mutations in the thyroglobulin gene.

Details

Serval ID
serval:BIB_F579CA971D6D
Type
Article: article from journal or magazin.
Collection
Publications
Title
Naturally occurring mutations in the thyroglobulin gene.
Journal
Thyroid
Author(s)
Vono-Toniolo J., Rivolta C.M., Targovnik H.M., Medeiros-Neto G., Kopp P.
ISSN
1050-7256 (Print)
ISSN-L
1050-7256
Publication state
Published
Issued date
09/2005
Peer-reviewed
Oui
Volume
15
Number
9
Pages
1021-1033
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't ; Review
Publication Status: ppublish
Abstract
Thyroglobulin (Tg) is a large glycoprotein dimer secreted into the follicular lumen. It serves as the matrix for the synthesis of thyroxine (T4) and triiodothyronine (T3), and the storage of thyroid hormone and iodide. In response to demand for thyroid hormone secretion, Tg is internalized into the follicular cell and digested in lysosomes. Subsequently, the thyronines T4 (approximately 80%) and T3 (approximately 20%) are released into the blood stream. Biallelic mutations in the Tg gene have been identified in several animal species and human patients presenting with goiter and overt or compensated hypothyroidism. In untreated patients, goiters are often remarkably large and display continuous growth. In most instances, the affected individuals have related parents and are homozygous for inactivating mutations in the Tg gene. More rarely, compound heterozygous mutations lead to a loss of function of both alleles. Molecular analyses indicate that at least some of these alterations result in a secretory defect and an endoplasmic reticulum storage disease (ERSD). This review discusses the nature and consequences of naturally occurring Tg gene mutations in humans and several animal species. Recent recommendations for the nomenclature of mutations have led to different numbering systems, an aspect that is discussed in order to clarify discrepancies between different publications.
Keywords
Animals, Goiter/genetics, Humans, Hypothyroidism/genetics, Mutation/genetics, Mutation/physiology, Thyroglobulin/genetics, Thyroglobulin/physiology
Pubmed
Web of science
Create date
30/12/2020 14:30
Last modification date
31/12/2020 6:26
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