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基本情報
登録情報 | データベース: PDB / ID: 8jbg | ||||||
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タイトル | Neurokinin B bound to active human neurokinin 3 receptor in complex with Gq | ||||||
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![]() | MEMBRANE PROTEIN / G protein coupled receptor / Neurokinin / Cryo-EM / Peptide Agonists | ||||||
機能・相同性 | ![]() Tachykinin receptors bind tachykinins / tachykinin receptor signaling pathway / positive regulation of blood pressure / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 ...Tachykinin receptors bind tachykinins / tachykinin receptor signaling pathway / positive regulation of blood pressure / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / photoreceptor outer segment membrane / G alpha (q) signalling events / G alpha (i) signalling events / spectrin binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / alkylglycerophosphoethanolamine phosphodiesterase activity / photoreceptor outer segment / neuropeptide signaling pathway / photoreceptor inner segment / cardiac muscle cell apoptotic process / female pregnancy / cellular response to catecholamine stimulus / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / sensory perception of taste / signaling receptor complex adaptor activity / cell body / GTPase binding / positive regulation of cytosolic calcium ion concentration / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / cellular response to hypoxia / G alpha (q) signalling events / cell population proliferation / G protein-coupled receptor signaling pathway / signaling receptor binding / GTPase activity / synapse / dendrite / protein-containing complex binding / extracellular space / extracellular region / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() ![]() ![]() ![]() ![]() ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.8 Å | ||||||
![]() | Sun, W.J. / Yang, F. / Zhang, H.H. / Yuan, Q.N. / Yin, W.C. / Shi, P. / Eric, X. / Tian, C.L. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into neurokinin 3 receptor activation by endogenous and analogue peptide agonists. 著者: Wenjing Sun / Fan Yang / Huanhuan Zhang / Qingning Yuan / Shenglong Ling / Yuanxia Wang / Pei Lv / Zelin Li / Yifan Luo / Dongsheng Liu / Wanchao Yin / Pan Shi / H Eric Xu / Changlin Tian / ![]() 要旨: Neurokinin 3 receptor (NK3R) is a tachykinin receptor essential for the hypothalamic-pituitary-gonadal axis. The endogenous peptide agonist neurokinin B (NKB) preferentially activates NK3R, while ...Neurokinin 3 receptor (NK3R) is a tachykinin receptor essential for the hypothalamic-pituitary-gonadal axis. The endogenous peptide agonist neurokinin B (NKB) preferentially activates NK3R, while substance P (SP) binds preferentially to NK1R. In addition, the SP analogue senktide more potently activates NK3R than NKB and SP. However, the mechanisms of preferential binding of peptide and NK3R activation remain elusive. Herein, we determined the cryogenic electron microscopy (cryo-EM) structures of the NK3R-G complex bound to NKB, SP and senktide. The three NK3R-G/peptide complexes utilize a class of noncanonical receptor activation mechanisms. Combining the structural analysis and functional assay illustrated that the consensus C-termini of the three peptide agonists share a conserved binding mode to NK3R, while the divergent N-termini of the peptides confer the preferential binding of the agonist to NK3R. In addition, the specific interactions between the N-terminus of senktide and the N-terminus and extracellular loops (ECL2 and ECL3) of NK3R lead to the improved activation displayed by senktide compared to SP and NKB. These findings pave the way to understand tachykinin receptor subtype selectivity and provide ideas to rationally develop drugs targeting NK3R. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 313.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 36145MC ![]() 8jbfC ![]() 8jbhC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 DGC
#2: タンパク質 | 分子量: 41055.867 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: P54311 |
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#4: タンパク質 | 分子量: 7861.143 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: P63212 |
#6: タンパク質 | 分子量: 41694.289 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
-タンパク質 / 抗体 / タンパク質・ペプチド , 3種, 3分子 BEA
#1: タンパク質 | 分子量: 158089.531 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
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#3: 抗体 | 分子量: 32708.473 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
#5: タンパク質・ペプチド | 分子量: 1212.417 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Neurokinin B bound to active human neurokinin 3 receptor in complex with Gq heterotrimer タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE-PROPANE / 湿度: 100 % |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: DIFFRACTION / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm / Cs: 2.7 mm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 907878 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 26.71 Å2 | ||||||||||||||||||||||||
拘束条件 |
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