| Literature DB >> 10786629 |
Abstract
We have isolated a second goldfish estrogen receptor (ER) beta-subtype (gfER-beta2) cDNA which is distinct from the liver-derived ER-beta (gfER-beta1) cDNA reported previously. The 2650-bp cDNA, isolated from a goldfish pituitary and brain cDNA library, encodes a 610 amino acid (aa) protein which shows only a 53% aa sequence identity with gfER-beta1 in overall structure. RT-PCR analysis showed that mRNA of gfER-beta2, in contrast to that of gfER-beta1, was predominantly expressed in pituitary, telencephalon and hypothalamus as well as in liver of female goldfish. The existence of a second distinct ER-beta subtype opens new dimensions for studying tissue-specific regulation of gene expression by estrogen in the tetraploid goldfish.Entities:
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Year: 2000 PMID: 10786629 DOI: 10.1016/s0167-4781(99)00235-3
Source DB: PubMed Journal: Biochim Biophys Acta ISSN: 0006-3002