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基本情報
登録情報 | データベース: PDB / ID: 9u4w | |||||||||||||||||||||
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タイトル | cryo-EM structure of pig GnRHR bound with mammal GnRH | |||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / Cryo-EM / gonadotropin releasing hormone receptor / GnRHR | |||||||||||||||||||||
機能・相同性 | ![]() gonadotropin-releasing hormone receptor activity / negative regulation of immature T cell proliferation / neurosecretory vesicle / regulation of ovarian follicle development / regulation of signaling / response to prolactin / Hormone ligand-binding receptors / G alpha (q) signalling events / gonadotropin hormone-releasing hormone activity / gonadotropin-releasing hormone receptor binding ...gonadotropin-releasing hormone receptor activity / negative regulation of immature T cell proliferation / neurosecretory vesicle / regulation of ovarian follicle development / regulation of signaling / response to prolactin / Hormone ligand-binding receptors / G alpha (q) signalling events / gonadotropin hormone-releasing hormone activity / gonadotropin-releasing hormone receptor binding / Hormone ligand-binding receptors / negative regulation of neuron migration / response to potassium ion / male sex determination / response to steroid hormone / cytoplasmic side of rough endoplasmic reticulum membrane / Golgi-associated vesicle / response to testosterone / estrous cycle / cellular response to hormone stimulus / response to prostaglandin E / axon terminus / female pregnancy / hormone activity / 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-coupled acetylcholine receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / cell-cell signaling / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / regulation of gene expression / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / response to ethanol / G alpha (i) signalling events / response to lipopolysaccharide / perikaryon / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / dendrite / synapse / negative regulation of apoptotic process / protein-containing complex binding / signal transduction / extracellular space / extracellular exosome / extracellular region / membrane / plasma membrane / cytosol / 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: 3.18 Å | |||||||||||||||||||||
![]() | Shen, S. / Xu, H.E. | |||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structures of GnRHR: Foundations for next-generation therapeutics. 著者: Shiyi Shen / Xinheng He / Heng Liu / Wen Hu / H Eric Xu / Jia Duan / ![]() 要旨: Gonadotropin-releasing hormone receptor (GnRHR) is critical for reproductive health and a key therapeutic target for endocrine disorders and hormone-responsive cancers. Using high-resolution ...Gonadotropin-releasing hormone receptor (GnRHR) is critical for reproductive health and a key therapeutic target for endocrine disorders and hormone-responsive cancers. Using high-resolution cryoelectron microscopy, we determined the structures of and GnRHRs bound to mammal GnRH, uncovering conserved and species-specific mechanisms of receptor activation and G protein coupling. The conserved "U"-shaped GnRH conformation mediates high-affinity binding through key interactions with residues such as K, Y, and Y. Species-specific variations in extracellular loops and receptor-ligand contacts fine-tune receptor function, while ligand binding induces structural rearrangements, including N terminus displacement and TM6 rotation, critical for signaling. Structure-activity relationship analysis demonstrates how D-amino acid substitutions in GnRH analogs enhance stability and receptor affinity. Distinct binding modes of agonists and antagonists elucidate mechanisms of ligand-dependent activation and inactivation. These insights lay the groundwork for designing next-generation GnRHR therapeutics with enhanced specificity and efficacy for conditions like endometriosis, prostate cancer, and infertility. | |||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 376 KB | 表示 | ![]() |
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PDB形式 | ![]() | 302.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 41.2 KB | 表示 | |
CIF形式データ | ![]() | 61.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 63857MC ![]() 9u4yC 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 ABG
#1: タンパク質 | 分子量: 28084.832 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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#2: タンパク質 | 分子量: 37784.301 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: P62873 |
#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: P59768 |
-タンパク質・ペプチド / タンパク質 / 抗体 , 3種, 3分子 FRS
#3: タンパク質・ペプチド | 分子量: 1183.300 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) ![]() |
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#5: タンパク質 | 分子量: 47241.773 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: ADRB2, ADRB2R, B2AR, GNRHR 発現宿主: ![]() ![]() 参照: UniProt: P49922 |
#6: 抗体 | 分子量: 30363.043 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | Y |
-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: cryo-EM structure of pig GnRHR bound with mammal GnRH 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: 7.4 |
試料 | 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 |
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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: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: DARK FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158 / カテゴリ: モデル精密化 |
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CTF補正 | タイプ: NONE |
3次元再構成 | 解像度: 3.18 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 118050 / 対称性のタイプ: POINT |