FUNCTION Nuclear hormone receptor that can act as a repressor or activator of transcription. High affinity receptor for thyroid hormones, including triiodothyronine and thyroxine.SUBUNIT Binds DNA as a dimer; homodimer and heterodimer with RXRA. Interacts with the coactivators NCOA1/SRC1, NCOA2/GRIP1, NCOA7 and MED1/TRAP220 in a ligand-inducible manner. Interacts with the corepressor NCOR1 in absence of ligand. Interacts with C1D (By similarity). Interacts with NR2F6; the interaction impairs the binding of the THRB homodimer and THRB:RXRB heterodimer to T3 response elements. Interacts with PRMT2 and THRSP. Interacts with TACC1; this interaction is decreased in the presence of thyroid hormone T3 (PubMed:20078863).INTERACTION Composed of three domains: a modulating N-terminal domain, a DNA-binding domain and a C-terminal ligand-binding domain.DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the nuclear hormone receptor family. NR1 subfamily.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Truncated N-terminus.
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