Thyroid hormone receptor alpha (TR-alpha) also known asnuclear receptor subfamily 1, group A, member 1 (NR1A1), is anuclear receptor protein that in humans is encoded by theTHRA gene.[5][6][7]
The protein encoded by this gene is a nuclear hormone receptor fortriiodothyronine. It is one of the severalreceptors for thyroid hormone, and has been shown to mediate the biological activities of thyroid hormone.Knockout studies in mice suggest that the different receptors, while having certain extent of redundancy, may mediate different functions of thyroid hormone.Alternatively spliced transcript variants encoding distinctisoforms have been reported.[5]
Mutations of the THRA gene may causenongoitrous congenital hypothyroidism-6, a subtype ofcongenital hypothyroidism.
THR1 has been shown tointeract with:
This article incorporates text from theUnited States National Library of Medicine, which is in thepublic domain.