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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Cryo-EM structure of XCR1 signaling complex | |||||||||
![]() | XCL1-XCR1-Gi map | |||||||||
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![]() | GPCR / XCL1 / Membrane protein / SIGNALING PROTEIN | |||||||||
機能・相同性 | ![]() 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 cell cytokine production / negative regulation of T-helper 1 type immune response / positive regulation of transforming growth factor beta production ...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 cell cytokine production / negative regulation of T-helper 1 type immune response / positive regulation of transforming growth factor beta production / positive regulation of natural killer cell chemotaxis / chemokine receptor binding / positive regulation of T-helper 1 cell cytokine production / chemokine receptor activity / positive regulation of T cell chemotaxis / CCR chemokine receptor binding / positive regulation of T-helper 2 cell cytokine production / positive regulation of leukocyte chemotaxis / C-C chemokine receptor activity / negative regulation of CD4-positive, alpha-beta T cell proliferation / chemokine-mediated signaling pathway / C-C chemokine binding / positive regulation of CD4-positive, alpha-beta T cell proliferation / eosinophil chemotaxis / positive regulation of neutrophil chemotaxis / chemokine activity / 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 / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / cellular response to transforming growth factor beta stimulus / T cell migration / Adenylate cyclase inhibitory pathway / 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 / release of sequestered calcium ion into cytosol / neutrophil chemotaxis / cellular response to forskolin / regulation of mitotic spindle organization / cellular response to interleukin-4 / positive regulation of release of sequestered calcium ion into cytosol / negative regulation of DNA-binding transcription factor activity / cell chemotaxis / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / negative regulation of insulin secretion / calcium-mediated signaling / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / positive regulation of T cell cytokine production / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to peptide hormone / positive regulation of T cell mediated cytotoxicity / G-protein beta/gamma-subunit complex binding / centriolar satellite / response to virus / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / antimicrobial humoral immune response mediated by antimicrobial peptide / 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) / chemotaxis / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events 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: 3.07 Å | |||||||||
![]() | Zhang X / Zhang C | |||||||||
資金援助 | ![]()
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![]() | ![]() 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
添付画像 |
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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 | ![]() | 54.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 20 KB 20 KB | 表示 表示 | ![]() |
画像 | ![]() | 88.9 KB | ||
Filedesc metadata | ![]() | 6.7 KB | ||
その他 | ![]() ![]() | 59.4 MB 59.4 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 764.2 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 763.8 KB | 表示 | |
XML形式データ | ![]() | 12.1 KB | 表示 | |
CIF形式データ | ![]() | 14.2 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 | ![]() 9astMC 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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注釈 | XCL1-XCR1-Gi map | ||||||||||||||||||||||||||||||||||||
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: 0.82 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: XCL1-XCR1-Gi map half A
ファイル | emd_43825_half_map_1.map | ||||||||||||
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注釈 | XCL1-XCR1-Gi_map_half_A | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: XCL1-XCR1-Gi map half B
ファイル | emd_43825_half_map_2.map | ||||||||||||
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注釈 | XCL1-XCR1-Gi_map_half_B | ||||||||||||
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 : XCL1-XCR1-Gi complex
全体 | 名称: XCL1-XCR1-Gi complex |
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要素 |
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-超分子 #1: XCL1-XCR1-Gi complex
超分子 | 名称: XCL1-XCR1-Gi complex / 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: 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: 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: 40.414047 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...文字列: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER 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 #2: Lymphotactin
分子 | 名称: Lymphotactin / 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: 13.905371 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: VGSEVSDKRT CVSLTTQRLP CSRIKTYTIT EGSLRAVIFI TKRGLKVCAD PQATWVRDCV RSMDRKSNTR NNMIQTKPTG TQQSTNTAV TLTGGSGSGS GSGSGSGSGS GSGSGSLEVL FQGPDYKDDD DKGS UniProtKB: Lymphotactin |
-分子 #3: Chemokine XC receptor 1,Non structural polyprotein
分子 | 名称: Chemokine XC receptor 1,Non structural polyprotein / 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: 60.383625 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: ESSGNPESTT FFYYDLQSQP CENQAWVFAT LATTVLYCLV FLLSLVGNSL VLWVLVKYES LESLTNIFIL NLCLSDLVFA CLLPVWISP YHWGWVLGDF LCKLLNMIFS ISLYSSIFFL TIMTIHRYLS VVSPLSTLRV PTLRCRVLVT MAVWVASILS S ILDTIFHK ...文字列: ESSGNPESTT FFYYDLQSQP CENQAWVFAT LATTVLYCLV FLLSLVGNSL VLWVLVKYES LESLTNIFIL NLCLSDLVFA CLLPVWISP YHWGWVLGDF LCKLLNMIFS ISLYSSIFFL TIMTIHRYLS VVSPLSTLRV PTLRCRVLVT MAVWVASILS S ILDTIFHK VLSSGCDYSE LTWYLTSVYQ HNLFFLLSLG IILFCYVEIL RTLFRSRSKR RHRTVKLIFA IVVAYFLSWG PY NFTLFLQ TLFRTQIIRS CEAKQQLEYA LLICRNLAFS HCCFNPVLYV FVGVKFRTHL KHVLRQFWFC RLQAPSPASI PHS PGAFAY EGASFYGSVF TLEDFVGDWE QTAAYNLDQV LEQGGVSSLL QNLAVSVTPI QRIVRSGENA LKIDIHVIIP YEGL SADQM AQIEEVFKVV YPVDDHHFKV ILPYGTLVID GVTPNMLNYF GRPYEGIAVF DGKKITVTGT LWNGNKIIDE RLITP DGSM LFRVTINSGG SGHHHHHHHH WSHPQFEKGG GSGGGSGGSA WSHPQFEK UniProtKB: Chemokine XC receptor 1, Non structural polyprotein |
-分子 #4: 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: 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: 38.744371 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MHHHHHHGSL LQSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI ...文字列: MHHHHHHGSL LQSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI VTSSGDTTCA LWDIETGQQT TTFTGHTGDV MSLSLAPDTR LFVSGACDAS AKLWDVREGM CRQTFTGHES DI NAICFFP NGNAFATGSD DATCRLFDLR ADQELMTYSH DNIICGITSV SFSKSGRLLL AGYDDFNCNV WDALKADRAG VLA GHDNRV SCLGVTDDGM AVATGSWDSF LKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-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: 7.859173 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MASNNTASIA QARKLVQQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASQNP FREKKFFCAI L 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: 28.634797 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: VQLVESGGGL VQPGGSRKLS CSASGFAFSS FGMHWVRQAP EKGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSED TAMYYCVRSI YYYGSSPFDF WGQGTTLTVS AGGGGSGGGG SGGGGSADIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...文字列: VQLVESGGGL VQPGGSRKLS CSASGFAFSS FGMHWVRQAP EKGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSED TAMYYCVRSI YYYGSSPFDF WGQGTTLTVS AGGGGSGGGG SGGGGSADIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL LEENLYFQGA SHHHHHHHH |
-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 TECNAI SPIRIT |
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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: 55.0 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): 2.0 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | ![]() モデル: Tecnai Spirit / 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: NONE |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.07 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 255110 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |