Disease:Defects in THRB are the cause of generalized thyroid hormone resistance (GTHR) [MIM:188570 , 274300]. GTHR is transmitted as an autosomal dominant trait , but an autosomal recessive form also exists. The disease is characterized by goiter , abnormal mental functions , increased susceptibility to infections , abnormal growth and bone maturation , tachycardia and deafness. Affected individuals may also have attention deficit-hyperactivity disorders (ADHD) and language difficulties. GTHR patients also have high levels of circulating thyroid hormones (T3-T4) , with normal or slightly elevated thyroid stimulating hormone (TSH) . ,Disease:Defects in THRB are the cause of selective pituitary thyroid hormone resistance (PRTH) [MIM:145650]; also called familial hyperthyroidism due to inappropriate thyrotropin secretion. PRTH is a variant form of thyroid hormone resistance and is characterized by clinical hyperthyroidism , with elevated free thyroid hormones , but inappropriately normal serum TSH. Unlike GRTH , where the syndrome usually segregates with a dominant allele , the mode of inheritance in PRTH has not been established. ,Domain:Composed of three domains: a modulating N-terminal domain , a DNA-binding domain and a C-terminal steroid-binding domain. ,Function:High affinity receptor for triiodothyronine. ,similarity:Belongs to the nuclear hormone receptor family. NR1 subfamily. ,similarity:Contains 1 nuclear receptor DNA-binding domain. ,subunit:Interacts with NOCA7 in a ligand-inducible manner. Interacts with C1D. ,
展开内容