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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Cryo-EM structure of CXCR4 in complex with CXCL12 | |||||||||
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![]() | Chemokine receptor / CXCR4 / IMMUNE SYSTEM | |||||||||
機能・相同性 | ![]() C-X-C motif chemokine 12 receptor activity / regulation of viral process / chemokine (C-X-C motif) ligand 12 signaling pathway / negative regulation of leukocyte tethering or rolling / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / regulation of actin polymerization or depolymerization / telencephalon cell migration / positive regulation of mesenchymal stem cell migration ...C-X-C motif chemokine 12 receptor activity / regulation of viral process / chemokine (C-X-C motif) ligand 12 signaling pathway / negative regulation of leukocyte tethering or rolling / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / regulation of actin polymerization or depolymerization / telencephalon cell migration / positive regulation of mesenchymal stem cell migration / chemokine receptor binding / response to tacrolimus / response to ultrasound / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / C-X-C chemokine receptor activity / regulation of programmed cell death / positive regulation of axon extension involved in axon guidance / positive regulation of vasculature development / CXCR chemokine receptor binding / endothelial tube morphogenesis / positive regulation of dopamine secretion / endothelial cell differentiation / Signaling by ROBO receptors / regulation of chemotaxis / positive regulation of dendrite extension / induction of positive chemotaxis / Formation of definitive endoderm / positive regulation of chemotaxis / integrin activation / C-C chemokine receptor activity / negative regulation of dendritic cell apoptotic process / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to chemokine / C-C chemokine binding / positive regulation of monocyte chemotaxis / chemokine-mediated signaling pathway / chemokine activity / blood circulation / Chemokine receptors bind chemokines / anchoring junction / dendritic cell chemotaxis / epithelial cell development / cellular response to cytokine stimulus / positive regulation of calcium ion import / cell leading edge / small molecule binding / detection of temperature stimulus involved in sensory perception of pain / regulation of calcium ion transport / positive regulation of oligodendrocyte differentiation / positive regulation of T cell migration / Binding and entry of HIV virion / animal organ regeneration / regulation of cell adhesion / detection of mechanical stimulus involved in sensory perception of pain / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / Nuclear signaling by ERBB4 / T cell migration / coreceptor activity / cardiac muscle contraction / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / adenylate cyclase regulator activity / positive regulation of endothelial cell proliferation / regulation of mitotic spindle organization / cellular response to forskolin / positive regulation of cell adhesion / positive regulation of neuron differentiation / axon guidance / adult locomotory behavior / ubiquitin binding / response to activity / neurogenesis / cell chemotaxis / Regulation of insulin secretion / growth factor activity / G protein-coupled receptor binding / calcium-mediated signaling / neuron migration / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor activity / defense response / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / brain development / response to virus / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / response to peptide hormone / 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 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.81 Å | |||||||||
![]() | Liu YZ / Liu AJ / Liao QW / Ye RD | |||||||||
資金援助 | 1件
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![]() | ![]() タイトル: Cryo-EM structure of monomeric CXCL12-bound CXCR4 in the active state. 著者: Yezhou Liu / Aijun Liu / Xinyu Li / Qiwen Liao / Weijia Zhang / Lizhe Zhu / Richard D Ye / ![]() 要旨: CXCR4 binding of its endogenous agonist CXCL12 leads to diverse functions, including bone marrow retention of hematopoietic progenitors and cancer metastasis. However, the structure of the CXCL12- ...CXCR4 binding of its endogenous agonist CXCL12 leads to diverse functions, including bone marrow retention of hematopoietic progenitors and cancer metastasis. However, the structure of the CXCL12-bound CXCR4 remains unresolved despite available structures of CXCR4 in complex with antagonists. Here, we present the cryoelectron microscopy (cryo-EM) structure of the CXCL12-CXCR4-Gi complex at an overall resolution of 2.65 Å. CXCL12 forms a 1:1 stoichiometry complex with CXCR4, following the two-site model. The first 8 amino acids of mature CXCL12 are crucial for CXCR4 activation by forming polar interactions with minor sub-pocket residues in the transmembrane binding pocket. The 3.2-Å distance between V3 of CXCL12 and the "toggle switch" W marks the deepest insertion among all chemokine-receptor pairs, leading to conformational changes of CXCR4 for G protein activation. These results, combined with functional assays and computational analysis, provide the structural basis for CXCR4 activation by CXCL12. | |||||||||
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構造の表示
添付画像 |
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-EMDBアーカイブ
マップデータ | ![]() | 117.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 19.1 KB 19.1 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.6 KB | 表示 | ![]() |
画像 | ![]() | 50.5 KB | ||
Filedesc metadata | ![]() | 6.3 KB | ||
その他 | ![]() ![]() | 115.9 MB 115.9 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 878.8 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 878.3 KB | 表示 | |
XML形式データ | ![]() | 19 KB | 表示 | |
CIF形式データ | ![]() | 24.5 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 | ![]() 8k3zMC M: このマップから作成された原子モデル 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
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.85 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #1
ファイル | emd_36869_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_36869_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : CXCR4-CXCL12-Gi-scFv16 complex
全体 | 名称: CXCR4-CXCL12-Gi-scFv16 complex |
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要素 |
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-超分子 #1: CXCR4-CXCL12-Gi-scFv16 complex
超分子 | 名称: CXCR4-CXCL12-Gi-scFv16 complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #6, #5, #2-#3, #1, #4 |
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由来(天然) | 生物種: ![]() |
-分子 #1: C-X-C chemokine receptor type 4
分子 | 名称: C-X-C chemokine receptor type 4 / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 33.826059 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: KEPCFREENA NFNKIFLPTI YSIIFLTGIV GNGLVILVMG YQKKLRSMTD KYRLHLSVAD LLFVITLPFW AVDAVANWYF GNFLCKAVH VIYTVNLYSS VLILAFISLD RYLAIVHATN SQRPRKLLAE KVVYVGVWIP ALLLTIPDFI FANVSEADDR Y ICDRFYPN ...文字列: KEPCFREENA NFNKIFLPTI YSIIFLTGIV GNGLVILVMG YQKKLRSMTD KYRLHLSVAD LLFVITLPFW AVDAVANWYF GNFLCKAVH VIYTVNLYSS VLILAFISLD RYLAIVHATN SQRPRKLLAE KVVYVGVWIP ALLLTIPDFI FANVSEADDR Y ICDRFYPN DLWVVVFQFQ HIMVGLILPG IVILSCYCII ISKLSHSKGH QKRKALKTTV ILILAFFACW LPYYIGISID SF ILLEIIK QGCEFENTVH KWISITEALA FFHCCLNPIL YAFLGAKFKT SAQHALTSV UniProtKB: C-X-C chemokine receptor type 4 |
-分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 37.198656 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLVS ASQDGKLIIW DSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG HTGYLSCCRF LDDNQIVTSS G DTTCALWD ...文字列: ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLVS ASQDGKLIIW DSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG HTGYLSCCRF LDDNQIVTSS G DTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TFTGHESDIN AICFFPNGNA FA TGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKADRAGVLA GHDNRVSCLG VTD DGMAVA TGSWDSFLKI WN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #3: Guanine nucleotide-binding protein G(i) subunit alpha-1
分子 | 名称: Guanine nucleotide-binding protein G(i) subunit alpha-1 タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 40.415031 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHESM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCA TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-分子 #4: Stromal cell-derived factor 1
分子 | 名称: Stromal cell-derived factor 1 / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 7.292648 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKNNNRQVC IDPKLKWIQE YL UniProtKB: Stromal cell-derived factor 1 |
-分子 #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 6.131084 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: IAQARKLVEQ LKMEANIDRI KVSKAAADLM AYCEAHAKED PLLTPVPASE NPFRE UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #6: scFv16
分子 | 名称: scFv16 / タイプ: protein_or_peptide / ID: 6 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 26.337307 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.4 |
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グリッド | 材質: GOLD |
凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |