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- 基本情報
基本情報
| 登録情報 |  | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Cryo-EM structure of CXCR4 in complex with CXCL12 | |||||||||
|  マップデータ | ||||||||||
|  試料 | 
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|  キーワード | Chemokine receptor / CXCR4 / IMMUNE SYSTEM | |||||||||
| 機能・相同性 |  機能・相同性情報 telencephalon cell migration / chemokine (C-X-C motif) ligand 12 signaling pathway / C-X-C motif chemokine 12 receptor activity / negative regulation of leukocyte tethering or rolling / response to ultrasound / positive regulation of macrophage migration inhibitory factor signaling pathway / regulation of actin polymerization or depolymerization / chemokine receptor binding / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway ...telencephalon cell migration / chemokine (C-X-C motif) ligand 12 signaling pathway / C-X-C motif chemokine 12 receptor activity / negative regulation of leukocyte tethering or rolling / response to ultrasound / positive regulation of macrophage migration inhibitory factor signaling pathway / regulation of actin polymerization or depolymerization / chemokine receptor binding / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / CXCR chemokine receptor binding / C-X-C chemokine receptor activity / positive regulation of axon extension involved in axon guidance / positive regulation of vasculature development / positive regulation of dopamine secretion / Signaling by ROBO receptors / regulation of chemotaxis / induction of positive chemotaxis / Formation of definitive endoderm / integrin activation / negative regulation of dendritic cell apoptotic process / C-C chemokine receptor activity / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to chemokine / chemokine-mediated signaling pathway / Developmental Lineage of Pancreatic Acinar Cells / C-C chemokine binding / positive regulation of monocyte chemotaxis / chemokine activity / blood circulation / Chemokine receptors bind chemokines / anchoring junction / dendritic cell chemotaxis / positive regulation of calcium ion import / cellular response to cytokine stimulus / detection of temperature stimulus involved in sensory perception of pain / cell leading edge / positive regulation of oligodendrocyte differentiation / animal organ regeneration / Binding and entry of HIV virion / detection of mechanical stimulus involved in sensory perception of pain / positive regulation of T cell migration / regulation of cell adhesion / adenylate cyclase inhibitor activity / Nuclear signaling by ERBB4 / positive regulation of protein localization to cell cortex / coreceptor activity / Adenylate cyclase inhibitory pathway / T cell migration / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / neurogenesis / positive regulation of endothelial cell proliferation / positive regulation of neuron differentiation / cellular response to forskolin / positive regulation of cell adhesion / axon guidance / regulation of mitotic spindle organization / ubiquitin binding / adult locomotory behavior / cell chemotaxis / Regulation of insulin secretion / growth factor activity / positive regulation of cholesterol biosynthetic process / calcium-mediated signaling / negative regulation of insulin secretion / G protein-coupled receptor binding / defense response / G protein-coupled receptor activity / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / brain development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / response to virus / centriolar satellite / Olfactory Signaling Pathway / Activation of the phototransduction cascade / integrin binding / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition  of voltage gated Ca2+ channels via Gbeta/gamma subunits / neuron migration / G-protein activation / intracellular calcium ion homeostasis / chemotaxis / 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 類似検索 - 分子機能 | |||||||||
| 生物種 |  Homo sapiens (ヒト) /   Vicugna pacos (アルパカ) | |||||||||
| 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 | |||||||||
|  データ登録者 | Liu YZ / Liu AJ / Liao QW / Ye RD | |||||||||
| 資金援助 | 1件 
 | |||||||||
|  引用 |  ジャーナル: Cell Rep / 年: 2024 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. | |||||||||
| 履歴 | 
 | 
- 構造の表示
構造の表示
| 添付画像 | 
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- ダウンロードとリンク
ダウンロードとリンク
-EMDBアーカイブ
| マップデータ |  emd_36869.map.gz | 117.8 MB |  EMDBマップデータ形式 | |
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| ヘッダ (付随情報) |  emd-36869-v30.xml  emd-36869.xml | 23 KB 23 KB | 表示 表示 |  EMDBヘッダ | 
| FSC (解像度算出) |  emd_36869_fsc.xml | 10.6 KB | 表示 |  FSCデータファイル | 
| 画像 |  emd_36869.png | 50.5 KB | ||
| Filedesc metadata |  emd-36869.cif.gz | 7 KB | ||
| その他 |  emd_36869_half_map_1.map.gz  emd_36869_half_map_2.map.gz | 115.9 MB 115.9 MB | ||
| アーカイブディレクトリ |  http://ftp.pdbj.org/pub/emdb/structures/EMD-36869  ftp://ftp.pdbj.org/pub/emdb/structures/EMD-36869 | HTTPS FTP | 
-検証レポート
| 文書・要旨 |  emd_36869_validation.pdf.gz | 879 KB | 表示 |  EMDB検証レポート | 
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| 文書・詳細版 |  emd_36869_full_validation.pdf.gz | 878.6 KB | 表示 | |
| XML形式データ |  emd_36869_validation.xml.gz | 19 KB | 表示 | |
| CIF形式データ |  emd_36869_validation.cif.gz | 24.6 KB | 表示 | |
| アーカイブディレクトリ |  https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36869  ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36869 | 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  F&H 検索 | 
- リンク
リンク
| EMDBのページ |  EMDB (EBI/PDBe) /  EMDataResource | 
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| 「今月の分子」の関連する項目 | 
- マップ
マップ
| ファイル |  ダウンロード / ファイル: emd_36869.map.gz / 形式: CCP4 / 大きさ: 125 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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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 | 
- 試料の構成要素
試料の構成要素
-全体 : CXCR4-CXCL12-Gi-scFv16 complex
| 全体 | 名称: CXCR4-CXCL12-Gi-scFv16 complex | 
|---|---|
| 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 | 
|---|---|
| 由来(天然) | 生物種:  Homo sapiens (ヒト) | 
-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 | 
|---|---|
| 由来(天然) | 生物種:  Homo sapiens (ヒト) | 
| 分子量 | 理論値: 33.826059 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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 | 
|---|---|
| 由来(天然) | 生物種:  Homo sapiens (ヒト) | 
| 分子量 | 理論値: 37.198656 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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 | 
|---|---|
| 由来(天然) | 生物種:  Homo sapiens (ヒト) | 
| 分子量 | 理論値: 40.415031 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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:  Homo sapiens (ヒト) | 
| 分子量 | 理論値: 7.292648 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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:  Homo sapiens (ヒト) | 
| 分子量 | 理論値: 6.131084 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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:   Vicugna pacos (アルパカ) | 
| 分子量 | 理論値: 26.337307 KDa | 
| 組換発現 | 生物種:   Spodoptera frugiperda (ツマジロクサヨトウ) | 
| 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 | 
|---|---|
|  解析 | 単粒子再構成法 | 
| 試料の集合状態 | particle | 
- 試料調製
試料調製
| 緩衝液 | pH: 7.4 | 
|---|---|
| グリッド | 材質: GOLD | 
| 凍結 | 凍結剤: ETHANE | 
- 電子顕微鏡法
電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS | 
|---|---|
| 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:  FIELD EMISSION GUN | 
| 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 | 
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