A unique hormonal recognition feature of the human glucagon-like peptide-2 receptor.
A unique hormonal recognition feature of the human glucagon-like peptide-2 receptor.
复制标题
人类胰高血糖素样肽 2 受体的独特激素识别特征。
DOI:
10.1038/s41422-020-00442-0
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发表时间:
2020-12
期刊:
影响因子:
44.1
通讯作者:
Wang MW
中科院分区:
文献类型:
--
作者:
Sun W;Chen LN;Zhou Q;Zhao LH;Yang D;Zhang H;Cong Z;Shen DD;Zhao F;Zhou F;Cai X;Chen Y;Zhou Y;Gadgaard S;van der Velden WJC;Zhao S;Jiang Y;Rosenkilde MM;Xu HE;Zhang Y;Wang MW
Glucagon-like peptides (GLP-1 and GLP-2) are two proglucagon-derived intestinal hormones that mediate distinct physiological functions through two related receptors (GLP-1R and GLP-2R) which are important drug targets for metabolic disorders and Crohn’s disease, respectively. Despite great progress in GLP-1R structure determination, our understanding on the differences of peptide binding and signal transduction between these two receptors remains elusive. Here we report the electron microscopy structure of the human GLP-2R in complex with GLP-2 and a Gs heterotrimer. To accommodate GLP-2 rather than GLP-1, GLP-2R fine-tunes the conformations of the extracellular parts of transmembrane helices (TMs) 1, 5, 7 and extracellular loop 1 (ECL1). In contrast to GLP-1, the N-terminal histidine of GLP-2 penetrates into the receptor core with a unique orientation. The middle region of GLP-2 engages with TM1 and TM7 more extensively than with ECL2, and the GLP-2 C-terminus closely attaches to ECL1, which is the most protruded among 9 class B G protein-coupled receptors (GPCRs). Functional studies revealed that the above three segments of GLP-2 are essential for GLP-2 recognition and receptor activation, especially the middle region. These results provide new insights into the molecular basis of ligand specificity in class B GPCRs and may facilitate the development of more specific therapeutics.
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影响因子:
16.8
作者:
Ehrenmann, Janosch;Schoeppe, Jendrik;Plueckthun, Andreas
通讯作者:
Plueckthun, Andreas
影响因子:
46.9
作者:
Drucker, DJ;Shi, Q;Brubaker, PL
通讯作者:
Brubaker, PL
影响因子:
64.5
作者:
Inoue, Asuka;Raimondi, Francesco;Russell, Robert B.
通讯作者:
Russell, Robert B.
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
64.8
作者:
Jazayeri, Ali;Rappas, Mathieu;Marshall, Fiona H.
通讯作者:
Marshall, Fiona H.