Please use this identifier to cite or link to this item: https://doi.org/10.1016/0303-7207(96)03836-1
Title: The first contiguous estrogen receptor gene from a fish, Oreochromis aureus: Evidence for multiple transcripts
Authors: Tan, N.S. 
Lam, T.J. 
Ding, J.L. 
Keywords: Estrogen receptor
Gene sequence
Imperfect ERE
Multiple transcripts
Oreochromis aureus
Transcription signals
Issue Date: 1-Jul-1996
Citation: Tan, N.S., Lam, T.J., Ding, J.L. (1996-07-01). The first contiguous estrogen receptor gene from a fish, Oreochromis aureus: Evidence for multiple transcripts. Molecular and Cellular Endocrinology 120 (2) : 177-192. ScholarBank@NUS Repository. https://doi.org/10.1016/0303-7207(96)03836-1
Abstract: The O. aureus estrogen receptor (OaER) gene of 40.4 kb containing ten exons is the first complete piscine gene to be cloned. There are two extra introns: intron I that divides the 5' UTR into two exons, and intron V that intersperses D and E, exons. Except for I and V, other introns have identical positions to those of human ER gene. All the donor and acceptor splice sites exhibit consensus sequences. The promoter lacks consensus TATA and CAAT boxes. This region exhibits several putative regulatory elements. A functional imperfect ERE deviating at two bases is located in the leader exon, thus suggesting that this gene is autoregulated. The OaER gene lacks an A region whereas its C and E domains are highly conserved. Within the ER subfamily, OaER exhibits the longest F domain of 77 amino acids. OaER has a long 3' UTR constituting > 1/2 of its transcript. Using RT-PCR and S1 nuclease mapping, we report for the first time the usage of both alternative transcriptional start sites and polyadenylation signals during estrogen-induced OaER expression. Thus, O. aureus may have four species of ER transcripts differing structurally in their transcriptional start sites and lengths of their 3' UTR.
Source Title: Molecular and Cellular Endocrinology
URI: http://scholarbank.nus.edu.sg/handle/10635/106909
ISSN: 03037207
DOI: 10.1016/0303-7207(96)03836-1
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