The brown shrimp (Crangon crangon L.) ecdysteroid receptor complex: Cloning, structural modeling of the ligand-binding domain and functional expression in an EcR-deficient Drosophila cell line
Verhaegen, Y.; Parmentier, K.; Swevers, L.; Rougé, P.; Soin, T.; De Coen, W.; Cooreman, K.; Smagghe, G. (2010). The brown shrimp (Crangon crangon L.) ecdysteroid receptor complex: Cloning, structural modeling of the ligand-binding domain and functional expression in an EcR-deficient Drosophila cell line. Gen. Comp. Endocrinol. 168(3): 415-423. https://dx.doi.org/10.1016/j.ygcen.2010.05.007
In: General and Comparative Endocrinology. Elsevier: New York,. ISSN 0016-6480; e-ISSN 1095-6840
cDNAs encoding ecdysteroid receptor (EcR) and retinoid X receptor (RXR) were cloned and sequenced from brown shrimp Crangon crangon (Crustacea: Decapoda), a common faunal species and commercially important in the North-West European coastal waters. A 3D model of the ligand-binding domain (LBD) of EcR was created and docking of ponasterone A (PonA) was simulated in silico. Finally, we report the transfection of expression plasmids for these receptors in the mutant Drosophila L57-3-11 cell line. Through an ecdysteroid responsive reporter assay we clearly prove the functionality of shrimp ecdysteroid receptor in the transfected L57-3-11 cell line. Our results indicate that the Drosophila L57-3-11 cell line and in silico LBD modeling can be used to study the function of crustacean ecdysteroid receptors and be applied to assess endocrine disrupting effects on non-target crustacean species.
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