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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Cryo-EM structure of an active Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupled Receptor (KSHV-GPCR) in complex with Gi protein | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupled Receptor / KSHV-GPCR / HHV8 / VIRAL PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報C-C chemokine receptor activity / C-C chemokine binding / 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 / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding ...C-C chemokine receptor activity / C-C chemokine binding / 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 / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to forskolin / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / cell chemotaxis / Regulation of insulin secretion / neuropeptide signaling pathway / calcium-mediated signaling / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / GDP binding / Glucagon-type ligand receptors / 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 / adenylate cyclase-activating dopamine receptor signaling pathway / 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 / extracellular vesicle / sensory perception of taste / adenylate cyclase-activating G protein-coupled receptor signaling pathway / sperm principal piece / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / positive regulation of cytosolic calcium ion concentration / retina development in camera-type eye / GTPase binding / G protein activity / Ca2+ pathway / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / immune response / ciliary basal body / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane / GTPase activity / centrosome / synapse / GTP binding / protein-containing complex binding / nucleolus / magnesium ion binding / Golgi apparatus / signal transduction / extracellular exosome / nucleoplasm / membrane 類似検索 - 分子機能 | |||||||||
| 生物種 | ![]() Human gammaherpesvirus 8 (ヘルペスウイルス) / Homo sapiens (ヒト) | |||||||||
| 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 | |||||||||
| 資金援助 | 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: Structural insights into KSHV-GPCR constitutive activation and CXCL1 chemokine recognition. 著者: Aijun Liu / Yezhou Liu / Clàudia Llinàs Del Torrent Masachs / Weijia Zhang / Leonardo Pardo / Richard D Ye / ![]() 要旨: Kaposi's sarcoma-associated herpesvirus (KSHV) encodes a viral G protein-coupled receptor, KSHV-GPCR, that contributes to KSHV immune evasion and pathogenesis of Kaposi's sarcoma. KSHV-GPCR shares a ...Kaposi's sarcoma-associated herpesvirus (KSHV) encodes a viral G protein-coupled receptor, KSHV-GPCR, that contributes to KSHV immune evasion and pathogenesis of Kaposi's sarcoma. KSHV-GPCR shares a high similarity with CXC chemokine receptors CXCR2 and can be activated by selected chemokine ligands. Like other herpesvirus-encoded GPCRs, KSHV-GPCR is characterized by its constitutive activity by coupling to various G proteins. We investigated the structural basis of ligand-dependent and constitutive activation of KSHV-GPCR, obtaining high-resolution cryo-EM structures of KSHV-GPCR-Gi complexes with and without the bound CXCL1 chemokine. Analysis of the apo-KSHV-GPCR-Gi structure (2.81 Å) unraveled the involvement of extracellular loop 2 in constitutive activation of the receptor. In comparison, the CXCL1-bound KSHV-GPCR-Gi structure (3.01 Å) showed a two-site binding mode and provided detailed information of CXCL1 binding to a chemokine receptor. The dual activation mechanism employed by KSHV-GPCR represents an evolutionary adaptation for immune evasion and contributes to the pathogenesis of Kaposi's sarcoma. Together with results from functional assays that confirmed the structural models, these findings may help to develop therapeutic strategies for KSHV infection. | |||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_36889.map.gz | 129.3 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-36889-v30.xml emd-36889.xml | 21.3 KB 21.3 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_36889.png | 108.8 KB | ||
| Filedesc metadata | emd-36889.cif.gz | 6.8 KB | ||
| その他 | emd_36889_half_map_1.map.gz emd_36889_half_map_2.map.gz | 127.1 MB 127.1 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-36889 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-36889 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 8k4pMC ![]() 8k4oC 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 |
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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 |
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マップ
| ファイル | ダウンロード / ファイル: emd_36889.map.gz / 形式: CCP4 / 大きさ: 137.1 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 | ||||||||||||||||||||||||||||||||||||
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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: #2
| ファイル | emd_36889_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: #1
| ファイル | emd_36889_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 : An active Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupl...
| 全体 | 名称: An active Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupled Receptor (KSHV-GPCR) in complex with Gi protein |
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| 要素 |
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-超分子 #1: An active Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupl...
| 超分子 | 名称: An active Kaposi's Sarcoma-Associated Herpesvirus-G Protein-Coupled Receptor (KSHV-GPCR) in complex with Gi protein 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: ![]() Human gammaherpesvirus 8 (ヘルペスウイルス) |
-分子 #1: 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: 1 / 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: 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 #2: G protein-coupled receptor
| 分子 | 名称: G protein-coupled receptor / 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: ![]() Human gammaherpesvirus 8 (ヘルペスウイルス) |
| 分子量 | 理論値: 33.329855 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: YTWNVGILSL IFLINVLGNG LVTYIFCKHR SRAGAIDILL LGICLNSLCL SISLLAEVLM FLFPNIISTG LCRLEIFFYY LYVYLDIFS VVCVSLVRYL LVAYSTRSWP KKQSLGWVLT SAALLIALVL SGDACRHRSR VVDPVSKQAM CYENAGNMTA D WRLHVRTV ...文字列: YTWNVGILSL IFLINVLGNG LVTYIFCKHR SRAGAIDILL LGICLNSLCL SISLLAEVLM FLFPNIISTG LCRLEIFFYY LYVYLDIFS VVCVSLVRYL LVAYSTRSWP KKQSLGWVLT SAALLIALVL SGDACRHRSR VVDPVSKQAM CYENAGNMTA D WRLHVRTV SVTAGFLLPL ALLILFYALT WCVVRRTKLQ ARRKVRGVIV AVVLLFFVFC FPYHVLNLLD TLLRRRWIRD SC YTRGLIN VGLAVTSLLQ ALYSAVVPLI YSCLGSLFRQ RMYGLFQSLR QSFMSGA UniProtKB: G protein-coupled receptor |
-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: Homo sapiens (ヒト) |
| 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: Guanine nucleotide-binding protein subunit gamma
| 分子 | 名称: Guanine nucleotide-binding protein subunit gamma / 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: 6.089048 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: SIAQARKLVE QLKMEANIDR IKVSKAAADL MAYCEAHAKE DPLLTPVPAS ENPFR UniProtKB: Guanine nucleotide-binding protein subunit gamma |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 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: 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): 1.2 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Human gammaherpesvirus 8 (ヘルペスウイルス)
Homo sapiens (ヒト)
データ登録者
引用
































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Y (Row.)
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解析
FIELD EMISSION GUN

