RRC ID 42833
著者 Kawakami Y, Adachi S, Yamauchi K, Ohta H.
タイトル Thyroid hormone receptor beta is widely expressed in the brain and pituitary of the Japanese eel, Anguilla japonica.
ジャーナル Gen Comp Endocrinol
Abstract In a previous study, we cloned the thyroid hormone receptor betaB (TRbetaB) from a teleostean fish, the Japanese conger eel (Conger myriaster). The gene encoding this receptor is expressed in the brain and pituitary. In this study, we cloned TRbetaB from the brain of the Japanese eel (Anguilla japonica) to extend our studies into thyroid hormone function in fish. RT-PCR analysis demonstrated that the TRbetaB transcripts were abundant in both the brain and pituitary. The TRbetaB cDNA encoded a 379 amino acid protein with much higher homology to the conger eel TRbetaB than to other fish TRs, supporting the existence of a TRbetaB isoform, at least in anguilliforms. In a transiently transfected Japanese eel cell line, Hepa-E1, TRbetaB and its splice variants in the ligand-binding domain (TRbetaBL) showed thyroid hormone (TH)-dependent activation of transcription from the TH-responsive promoter. In situ hybridization studies revealed the presence of TRbetaB transcripts in the pars distalis of the pituitary.
巻・号 150(3)
ページ 386-94
公開日 2007-2-1
DOI 10.1016/j.ygcen.2006.10.006
PII S0016-6480(06)00327-3
PMID 17150218
MeSH Amino Acid Sequence Anguilla / metabolism* Animals Base Sequence Brain / metabolism* DNA, Complementary / analysis Male Molecular Sequence Data Pituitary Gland, Anterior / metabolism* Protein Isoforms RNA / analysis Sequence Homology Thyroid Hormone Receptors beta / genetics Thyroid Hormone Receptors beta / metabolism*
IF 2.428
引用数 12
WOS 分野 ENDOCRINOLOGY & METABOLISM
リソース情報
ヒト・動物細胞