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Mol Cell Endocrinol. 2001 Oct 25;183(1-2):33-9.

Molecular cloning and characterization of reptilian estrogen receptor cDNAs.

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  • 1Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 1-98, 3-Chome, Kasugade-Naka, Konohana-ku, Osaka 554-8558, Japan. sumida@sc.sumitomo-chem.co.jp

Abstract

cDNAs encoding alligator (caiman), Caiman crocodilus and whiptail lizard, Cnemidophorus uniparens estrogen receptors (ERs) were cloned and sequenced. This is the first report of full-length cDNA sequences for reptilian ERs, to our knowledge. The full-length alligator (caiman) ER cDNA (1764 bp, 587 amino acid residues) shows 68% amino acid homology with the full-length whiptail lizard ER cDNA (1746 bp, 581 amino acid residues). The respective ligand binding E domains have 87 and 83% amino acid homology with human ER while the DNA binding C domains show 100% amino acid homology with the human, rat and chicken forms. When the cDNAs were inserted into the pRc/RSV vector and transfected into HeLa cells with a reporter plasmid, the encoding proteins were confirmed to be functional through the interaction of the receptor-ligand complex with the estrogen responsive element (ERE).

PMID:
11604222
[PubMed - indexed for MEDLINE]
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