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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9ast | ||||||
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| タイトル | Cryo-EM structure of XCR1 signaling complex | ||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / XCL1 / Membrane protein | ||||||
| 機能・相同性 | 機能・相同性情報mature natural killer cell chemotaxis / positive regulation of granzyme A production / negative regulation of T-helper 1 cell activation / positive regulation of immunoglobulin production in mucosal tissue / positive regulation of granzyme B production / positive regulation of thymocyte migration / positive regulation of B cell chemotaxis / negative regulation of T-helper 1 type immune response / negative regulation of T cell cytokine production / positive regulation of natural killer cell chemotaxis ...mature natural killer cell chemotaxis / positive regulation of granzyme A production / negative regulation of T-helper 1 cell activation / positive regulation of immunoglobulin production in mucosal tissue / positive regulation of granzyme B production / positive regulation of thymocyte migration / positive regulation of B cell chemotaxis / negative regulation of T-helper 1 type immune response / negative regulation of T cell cytokine production / positive regulation of natural killer cell chemotaxis / chemokine receptor binding / positive regulation of T-helper 1 cell cytokine production / positive regulation of transforming growth factor beta production / chemokine receptor activity / CCR chemokine receptor binding / positive regulation of T cell chemotaxis / positive regulation of T-helper 2 cell cytokine production / positive regulation of leukocyte chemotaxis / negative regulation of CD4-positive, alpha-beta T cell proliferation / positive regulation of CD4-positive, alpha-beta T cell proliferation / C-C chemokine receptor activity / C-C chemokine binding / chemokine activity / positive regulation of neutrophil chemotaxis / Chemokine receptors bind chemokines / positive regulation of CD8-positive, alpha-beta T cell proliferation / negative regulation of interleukin-2 production / negative regulation of type II interferon production / positive regulation of interleukin-10 production / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / cellular response to transforming growth factor beta stimulus / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / release of sequestered calcium ion into cytosol / neutrophil chemotaxis / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to interleukin-4 / cellular response to forskolin / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / positive regulation of release of sequestered calcium ion into cytosol / cell chemotaxis / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / calcium-mediated signaling / positive regulation of T cell cytokine production / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / positive regulation of T cell mediated cytotoxicity / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to virus / G-protein beta/gamma-subunit complex binding / centriolar satellite / chemotaxis / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / GDP binding / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / cell-cell signaling / adenylate cyclase-activating dopamine receptor signaling pathway / antimicrobial humoral immune response mediated by antimicrobial peptide / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G-protein beta-subunit binding / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 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: 3.07 Å | ||||||
データ登録者 | Zhang, X. / Zhang, C. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2024タイトル: Molecular basis for chemokine recognition and activation of XCR1. 著者: Xuan Zhang / Roman R Schlimgen / Stephanie Singh / Michael P Tomani / Brian F Volkman / Cheng Zhang / ![]() 要旨: The X-C motif chemokine receptor XCR1, which selectively binds to the chemokine XCL1, is highly expressed in conventional dendritic cells subtype 1 (cDC1s) and crucial for their activation. ...The X-C motif chemokine receptor XCR1, which selectively binds to the chemokine XCL1, is highly expressed in conventional dendritic cells subtype 1 (cDC1s) and crucial for their activation. Modulating XCR1 signaling in cDC1s could offer novel opportunities in cancer immunotherapy and vaccine development by enhancing the antigen presentation function of cDC1s. To investigate the molecular mechanism of XCL-induced XCR1 signaling, we determined a high-resolution structure of the human XCR1 and G complex with an engineered form of XCL1, XCL1 CC3, by cryoelectron microscopy. Through mutagenesis and structural analysis, we elucidated the molecular details for the binding of the N-terminal segment of XCL1 CC3, which is vital for activating XCR1. The unique arrangement within the XCL1 CC3 binding site confers specificity for XCL1 in XCR1. We propose an activation mechanism for XCR1 involving structural alterations of key residues at the bottom of the XCL1 binding pocket. These detailed insights into XCL1 CC3-XCR1 interaction and XCR1 activation pave the way for developing novel XCR1-targeted therapeutics. | ||||||
| 履歴 |
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 9ast.cif.gz | 245.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9ast.ent.gz | 185.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9ast.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/as/9ast ftp://data.pdbj.org/pub/pdb/validation_reports/as/9ast | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 43825MC 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 F&H 検索 |
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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: 40414.047 Da / 分子数: 1 / 変異: S47N, G203A, E245A, A326S / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNAI1発現宿主: ![]() 参照: UniProt: P63096 |
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| #4: タンパク質 | 分子量: 38744.371 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNB1発現宿主: ![]() 参照: UniProt: P62873 |
| #5: タンパク質 | 分子量: 7859.173 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNG2発現宿主: ![]() 参照: UniProt: P59768 |
-タンパク質 , 2種, 2分子 LR
| #2: タンパク質 | 分子量: 13905.371 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: XCL1, LTN, SCYC1発現宿主: ![]() 参照: UniProt: P47992 |
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| #3: タンパク質 | 分子量: 60383.625 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: XCR1, CCXCR1, GPR5発現宿主: ![]() 参照: UniProt: P46094, UniProt: A0A482LYE4 |
-抗体 , 1種, 1分子 E
| #6: 抗体 | 分子量: 28634.797 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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-詳細
| Has protein modification | Y |
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-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: XCL1-XCR1-Gi complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: Baculovirus expression vector pFastBac1-HM (ウイルス) |
| 緩衝液 | pH: 7.5 |
| 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: Tecnai Spirit / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TECNAI SPIRIT |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT 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: 55 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (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: 3.07 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 255110 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)

米国, 1件
引用
PDBj

































Baculovirus expression vector pFastBac1-HM (ウイルス)
FIELD EMISSION GUN