EMDB-37824: Cryo-EM structure of Melanin-Concentrating Hormone Receptor 2 with MCH

基本情報

登録情報

データベース: EMDB / ID: EMD-37824

• タイトル: Cryo-EM structure of Melanin-Concentrating Hormone Receptor 2 with MCH

試料

• 複合体: Melanin-Concentrating Hormone Receptors2 complex with MCH
  • タンパク質・ペプチド: Guanine nucleotide-binding protein G(q) subunit alpha-1
  • タンパク質・ペプチド: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
  • タンパク質・ペプチド: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
  • タンパク質・ペプチド: Pro-MCH
  • タンパク質・ペプチド: NB35
  • タンパク質・ペプチド: Melanin-concentrating hormone receptor 2

• キーワード: Melanin-Concentrating Hormone Receptors2 / GPCR / MEMBRANE PROTEIN

機能・相同性

分子機能:

melanin-concentrating hormone activity / type 1 melanin-concentrating hormone receptor binding / neuropeptide binding / G protein-coupled peptide receptor activity / feeding behavior / neuropeptide signaling pathway / Peptide ligand-binding receptors / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / spermatogenesis / G alpha (q) signalling events / chemical synaptic transmission / cell population proliferation / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell differentiation / neuron projection / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / extracellular region / membrane / nucleus / plasma membrane / cytoplasm / cytosol

ドメイン・相同性:

Melanin-concentrating hormone 2 receptor / Pre-pro melanin-concentrating hormone / Melanin-concentrating hormone receptor / Pro-melanin-concentrating hormone (Pro-MCH) / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily

構成要素:

Pro-MCH / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Melanin-concentrating hormone receptor 2

• 生物種: Homo sapiens (ヒト)
• 手法: 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.4 Å
• データ登録者: Zhao L / He Q / Yuan Q / Gu Y / Shan H / Hu W / Wu K / Xu HE / Zhang Y / Wu C / Shen J

資金援助

中国, 1件

Organization	Grant number	国
National Natural Science Foundation of China (NSFC)		中国

• 引用: ジャーナル: Cell Discov / 年: 2024; タイトル: Mechanisms of ligand recognition and activation of melanin-concentrating hormone receptors.; 著者: Qian He / Qingning Yuan / Hong Shan / Canrong Wu / Yimin Gu / Kai Wu / Wen Hu / Yumu Zhang / Xinheng He / H Eric Xu / Li-Hua Zhao / ; 要旨: Melanin-concentrating hormone (MCH) is a cyclic neuropeptide that regulates food intake, energy balance, and other physiological functions by stimulating MCHR1 and MCHR2 receptors, both of which are class A G protein-coupled receptors. MCHR1 predominately couples to inhibitory G protein, G, and MCHR2 can only couple to G. Here we present cryo-electron microscopy structures of MCH-activated MCHR1 with G and MCH-activated MCHR2 with G at the global resolutions of 3.01 Å and 2.40 Å, respectively. These structures reveal that MCH adopts a consistent cysteine-mediated hairpin loop configuration when bound to both receptors. A central arginine from the LGRVY core motif between the two cysteines of MCH penetrates deeply into the transmembrane pocket, triggering receptor activation. Integrated with mutational and functional insights, our findings elucidate the molecular underpinnings of ligand recognition and MCH receptor activation and offer a structural foundation for targeted drug design.

履歴

登録	2023年10月17日	-
ヘッダ(付随情報) 公開	2024年6月19日	-
マップ公開	2024年6月19日	-
更新	2024年6月26日	-
現状	2024年6月26日	処理サイト: PDBj / 状態: 公開