Local motifs involved in the canonical structure of the ligand-binding domain in the nuclear receptor superfamily

Journal of Structural Biology
Motonori Tsuji

Abstract

Structural and sequence alignment analyses have revealed the existence of class-dependent and -independent local motifs involved in the overall fold of the ligand-binding domain (LBD) in the nuclear receptor (NR) superfamily. Of these local motifs, three local motifs, i.e., AF-2 fixed motifs, were involved in the agonist conformation of the activation function-2 (AF-2) region of the LBD. Receptor-agonist interactions increased the stability of these AF-2 fixed motifs in the agonist conformation. In contrast, perturbation of the AF-2 fixed motifs by a ligand or another protein molecule led the AF-2 architecture to adopt an antagonist conformation. Knowledge of this process should provide us with novel insights into the 'agonism' and 'antagonism' of NRs.

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Citations

Sep 20, 2015·Journal of Computer-aided Molecular Design·Motonori TsujiHiroyuki Kagechika

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