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基本情報
登録情報 | データベース: EMDB / ID: EMD-31422 | |||||||||
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タイトル | Cryo-EM structure of the chemokine receptor CCR5 in complex with MIP-1a and Gi | |||||||||
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![]() | G Protein-coupled receptor / Chemokine Receptor CCR5 / MIP-1a / SIGNALING PROTEIN | |||||||||
機能・相同性 | ![]() chemokine (C-C motif) ligand 5 binding / lymphocyte chemotaxis / granulocyte chemotaxis / CCR1 chemokine receptor binding / positive regulation of microglial cell migration / positive regulation of natural killer cell chemotaxis / negative regulation of macrophage apoptotic process / regulation of behavior / astrocyte cell migration / chemokine receptor activity ...chemokine (C-C motif) ligand 5 binding / lymphocyte chemotaxis / granulocyte chemotaxis / CCR1 chemokine receptor binding / positive regulation of microglial cell migration / positive regulation of natural killer cell chemotaxis / negative regulation of macrophage apoptotic process / regulation of behavior / astrocyte cell migration / chemokine receptor activity / CCR5 chemokine receptor binding / eosinophil degranulation / CCR chemokine receptor binding / regulation of sensory perception of pain / signaling / negative regulation of bone mineralization / positive regulation of microglial cell activation / cell activation / C-C chemokine receptor activity / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / T cell chemotaxis / chemokine-mediated signaling pathway / C-C chemokine binding / eosinophil chemotaxis / positive regulation of calcium ion transport / response to cholesterol / chemokine activity / Chemokine receptors bind chemokines / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / dendritic cell chemotaxis / phospholipase activator activity / Interleukin-10 signaling / positive regulation of calcium ion import / chemoattractant activity / macrophage chemotaxis / exocytosis / negative regulation of osteoclast differentiation / monocyte chemotaxis / cellular response to interleukin-1 / negative regulation by host of viral transcription / Binding and entry of HIV virion / cellular defense response / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / coreceptor activity / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cytoskeleton organization / neutrophil chemotaxis / cellular response to forskolin / regulation of mitotic spindle organization / positive regulation of calcium-mediated signaling / positive regulation of interleukin-1 beta production / cell chemotaxis / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / calcium-mediated signaling / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / cellular response to type II interferon / response to peptide hormone / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / response to toxic substance / G-protein activation / intracellular calcium ion homeostasis / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / positive regulation of inflammatory response / Prostacyclin signalling through prostacyclin receptor / antimicrobial humoral immune response mediated by antimicrobial peptide / 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 / chemotaxis / photoreceptor disc membrane / calcium ion transport / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / positive regulation of tumor necrosis factor production / osteoblast differentiation / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / kinase activity / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion 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: 2.9 Å | |||||||||
![]() | Zhang H / Chen K | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis for chemokine recognition and receptor activation of chemokine receptor CCR5. 著者: Hui Zhang / Kun Chen / Qiuxiang Tan / Qiang Shao / Shuo Han / Chenhui Zhang / Cuiying Yi / Xiaojing Chu / Ya Zhu / Yechun Xu / Qiang Zhao / Beili Wu / ![]() 要旨: The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain ...The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain elusive. Here we report three cryo-electron microscopy structures of G protein-coupled CCR5 in a ligand-free state and in complex with the chemokine MIP-1α or RANTES, as well as the crystal structure of MIP-1α-bound CCR5. These structures reveal distinct binding modes of the two chemokines and a specific accommodate pattern of the chemokine for the distal N terminus of CCR5. Together with functional data, the structures demonstrate that chemokine-induced rearrangement of toggle switch and plasticity of the receptor extracellular region are critical for receptor activation, while a conserved tryptophan residue in helix II acts as a trigger of receptor constitutive activation. | |||||||||
履歴 |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 59.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 13.7 KB 13.7 KB | 表示 表示 | ![]() |
画像 | ![]() | 26 KB | ||
Filedesc metadata | ![]() | 5.9 KB | ||
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「今月の分子」の関連する項目 |
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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: 1.045 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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試料の構成要素
-全体 : Chemokine receptor CCR5 in complex with MIP-1a and Gi
全体 | 名称: Chemokine receptor CCR5 in complex with MIP-1a and Gi |
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要素 |
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-超分子 #1: Chemokine receptor CCR5 in complex with MIP-1a and Gi
超分子 | 名称: Chemokine receptor CCR5 in complex with MIP-1a and Gi タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: C-C motif chemokine 3,C-C chemokine receptor type 5
分子 | 名称: C-C motif chemokine 3,C-C chemokine receptor type 5 / タイプ: protein_or_peptide / ID: 1 / 詳細: Fusion protein of MIP-1a and CCR5 / 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: 51.241047 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: SLAADTPTAC CFSYCSRQIP QNFIADYFET SSQCSKPGVI FLTKRSRQVC ADPSEEWVQK YVSDLELSAG SGSGSGSGSG SGSGSGSGS GSGSDYQVSS PIYDINYYCS EPCQKINVKQ IAARLLPPLY SLVFIFGFVG NMLVILILIN CKRLKSMTDI Y LLNLAISD ...文字列: SLAADTPTAC CFSYCSRQIP QNFIADYFET SSQCSKPGVI FLTKRSRQVC ADPSEEWVQK YVSDLELSAG SGSGSGSGSG SGSGSGSGS GSGSDYQVSS PIYDINYYCS EPCQKINVKQ IAARLLPPLY SLVFIFGFVG NMLVILILIN CKRLKSMTDI Y LLNLAISD LFFLLTVPFW AHYAAAQWDF GNTMCQLLTG LYFIGFFSGI FFIILLTIDR YLAVVHAVFA LKARTVTFGV VT SVITWVV AVFASLPNII FTRSQKEGLH YTCSSHFPYS QYQFWKNFQT LKIVILGLVL PLLVMVICYS GILKTLLRCR NEK KRHRAV RLIFTIMIVY FLFWAPYNIV LLLNTFQEFF GLNNCSSSNR LDQAMQVTET LGMTHCCINP IIYAFVGEKF RNYL LVFFQ KHIAKRLEVL FQGPGSWSHP QFEKGSGAGA SAGSWSHPQF EKGSDYKDDD DK UniProtKB: C-C motif chemokine 3, C-C chemokine receptor type 5 |
-分子 #2: 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: 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: 40.447141 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKCTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVTAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-分子 #3: 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: 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: 37.41693 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #4: 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: 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: 7.861143 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-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: 7.5 |
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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: 2.1875 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: SPOT SCAN / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
初期モデル | モデルのタイプ: INSILICO MODEL |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 7095732 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |