Interaction Between Umami Peptide and Taste Receptor T1R1/T1R3 |
| |
Authors: | Yali Dang Xinchang Gao Aiying Xie Xueqian Wu Fumin Ma |
| |
Institution: | 1. Institute of Health Food of Zhejiang Academy of Medical Sciences, No. 182, Tian Mu Mountain Road, Hangzhou, 310013, China 2. ACEA Biosciences Inc., Hangzhou, 310000, China 3. Southwest University Rongchang Campus Chongqing, Rongchang, 402460, China 4. Food Science and Engineering Teaching and Research Section, School of Traditional Medicine, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
|
| |
Abstract: | The umami taste receptor is a heterodimer composed of two members of the T1R taste receptor family: T1R1 and T1R3. The homology models of the ligand binding domains of the human umami receptor have been constructed based on crystallographic structures of the taste receptor of the central nervous system. Furthermore, the molecular simulations of the ligand binding domain show that the likely conformation was that T1R1 protein exists in the closed conformation, and T1R3 in the open conformation in the heterodimer. The molecular docking study of T1R1 and T1R3 in complex with four peptides, including Lys–Gly–Asp–Glu–Ser–Leu–Leu–Ala, Ser–Glu–Glu, G1u–Ser, and Asp–Glu–Ser, displayed that the amino acid residue of SER146 and Glu277 in T1R3 may play great roles in the synergism of umami taste. This docking result further validated the robustness of the model. In the paper, binding of umami peptide and the T1R1/T1R3 receptor was first described and the interaction is the base of umami activity theory. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|