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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Combined map of C3* (composite structure) | |||||||||
![]() | Combined map of C3* based on a focused map on the MG-ring, a focused map on TE-CUB and a consensus map centred on MG7. | |||||||||
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![]() | Complement cascade / complement factor C3 / thioester protein / IMMUNE SYSTEM | |||||||||
機能・相同性 | ![]() C5L2 anaphylatoxin chemotactic receptor binding / oviduct epithelium development / regulation of triglyceride biosynthetic process / positive regulation of activation of membrane attack complex / vertebrate eye-specific patterning / positive regulation of apoptotic cell clearance / complement-mediated synapse pruning / Alternative complement activation / Activation of C3 and C5 / positive regulation of phagocytosis, engulfment ...C5L2 anaphylatoxin chemotactic receptor binding / oviduct epithelium development / regulation of triglyceride biosynthetic process / positive regulation of activation of membrane attack complex / vertebrate eye-specific patterning / positive regulation of apoptotic cell clearance / complement-mediated synapse pruning / Alternative complement activation / Activation of C3 and C5 / positive regulation of phagocytosis, engulfment / positive regulation of lipid storage / positive regulation of G protein-coupled receptor signaling pathway / complement receptor mediated signaling pathway / positive regulation of type IIa hypersensitivity / complement-dependent cytotoxicity / positive regulation of D-glucose transmembrane transport / complement activation / complement activation, alternative pathway / endopeptidase inhibitor activity / neuron remodeling / amyloid-beta clearance / B cell activation / positive regulation of vascular endothelial growth factor production / complement activation, classical pathway / Purinergic signaling in leishmaniasis infection / Peptide ligand-binding receptors / Regulation of Complement cascade / fatty acid metabolic process / Post-translational protein phosphorylation / response to bacterium / positive regulation of receptor-mediated endocytosis / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of angiogenesis / azurophil granule lumen / positive regulation of protein phosphorylation / G alpha (i) signalling events / secretory granule lumen / blood microparticle / immune response / G protein-coupled receptor signaling pathway / inflammatory response / receptor ligand activity / endoplasmic reticulum lumen / signaling receptor binding / Neutrophil degranulation / cell surface / signal transduction / protein-containing complex / extracellular space / extracellular exosome / extracellular region / plasma membrane 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: 8.1 Å | |||||||||
![]() | Joergensen MH / Andersen GR | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM analysis of complement C3 reveals a reversible major opening of the macroglobulin ring. 著者: Trine Amalie Fogh Gadeberg / Martin Høgholm Jørgensen / Heidi Gytz Olesen / Josefine Lorentzen / Seandean Lykke Harwood / Ana Viana Almeida / Marlene Uglebjerg Fruergaard / Rasmus Kjeldsen ...著者: Trine Amalie Fogh Gadeberg / Martin Høgholm Jørgensen / Heidi Gytz Olesen / Josefine Lorentzen / Seandean Lykke Harwood / Ana Viana Almeida / Marlene Uglebjerg Fruergaard / Rasmus Kjeldsen Jensen / Philipp Kanis / Henrik Pedersen / Emil Tranchant / Steen Vang Petersen / Ida Buch Thøgersen / Birthe Brandt Kragelund / Joseph Anthony Lyons / Jan Johannes Enghild / Gregers Rom Andersen / ![]() 要旨: The C3 protein is the central molecule within the complement system and undergoes proteolytic activation to C3b in the presence of pathogens. Pattern-independent activation of C3 also occurs via ...The C3 protein is the central molecule within the complement system and undergoes proteolytic activation to C3b in the presence of pathogens. Pattern-independent activation of C3 also occurs via hydrolysis, resulting in C3(HO), but the structural details of C3 hydrolysis remain elusive. Here we show that the conformation of the C3(HO) analog, C3MA, is indistinguishable from C3b. In contrast, the reaction intermediate C3* adopts a conformation dramatically different from both C3 and C3MA. In C3*, unlocking of the macroglobulin (MG) 3 domain creates a large opening in the MG ring through which the anaphylatoxin (ANA) domain translocates through a transient opening. C3MA formation is inhibited by an MG3-specific nanobody and prevented by linking the ANA domain to the C3 β-chain. Our study reveals an unexpected dynamic behavior of C3 and forms the basis for elucidation of the in vivo contribution of C3 hydrolysis and for controlling complement upon intravascular hemolysis and surface-contact-induced activation. | |||||||||
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マップデータ | ![]() | 4.1 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 13.6 KB 13.6 KB | 表示 表示 | ![]() |
画像 | ![]() | 52.9 KB | ||
Filedesc metadata | ![]() | 5.8 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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 | Combined map of C3* based on a focused map on the MG-ring, a focused map on TE-CUB and a consensus map centred on MG7. | ||||||||||||||||||||||||||||||||||||
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: 2.59 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
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試料の構成要素
-全体 : Complement factor C3* intermediate
全体 | 名称: Complement factor C3* intermediate |
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要素 |
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-超分子 #1: Complement factor C3* intermediate
超分子 | 名称: Complement factor C3* intermediate / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Activated to C3* by nucleophilic reaction with methylamine |
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由来(天然) | 生物種: ![]() |
-分子 #1: Complement factor C3
分子 | 名称: Complement factor C3 / タイプ: protein_or_peptide / ID: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
配列 | 文字列: SPMYSIITPN ILRLESEETM VLEAHDAQGD VPVTVTVH D FPGKKLVLSS EKTVLTPATN HMGNVTFTIP ANREFKSEKG RNKFVTVQAT FGTQVVEKV VLVSLQSGYL FIQTDKTIYT PGSTVLYRIF TVNHKLLPVG RTVMVNIENP EGIPVKQDSL SSQNQLGVL ...文字列: SPMYSIITPN ILRLESEETM VLEAHDAQGD VPVTVTVH D FPGKKLVLSS EKTVLTPATN HMGNVTFTIP ANREFKSEKG RNKFVTVQAT FGTQVVEKV VLVSLQSGYL FIQTDKTIYT PGSTVLYRIF TVNHKLLPVG RTVMVNIENP EGIPVKQDSL SSQNQLGVL PLSWDIPELV NMGQWKIRAY YENSPQQVFS TEFEVKEYVL PSFEVIVEPT E KFYYIYNE KGLEVTITAR FLYGKKVEGT AFVIFGIQDG EQRISLPESL KRIPIEDGSG EV VLSRKVL LDGVQNPRAE DLVGKSLYVS ATVILHSGSD MVQAERSGIP IVTSPYQIHF TKT PKYFKP GMPFDLMVFV TNPDGSPAYR VPVAVQGEDT VQSLTQGDGV AKLSINTHPS QKPL SITVR TKKQELSEAE QATRTMQALP YSTVGNSNNY LHLSVLRTEL RPGETLNVNF LLRMD RAHE AKIRYYTYLI MNKGRLLKAG RQVREPGQDL VVLPLSITTD FIPSFRLVAY YTLIGA SGQ REVVADSVWV DVKDSCVGSL VVKSGQSEDR QPVPGQQMTL KIEGDHGARV VLVAVDK GV FVLNKKNKLT QSKIWDVVEK ADIGCTPGSG KDYAGVFSDA GLTFTSSSGQ QTAQRAEL Q CPQPAARRRR SVQLTEKRMD KVGKYPKELR KCCEDGMREN PMRFSCQRRT RFISLGEAC KKVFLDCCNY ITELRRQHAR ASHLGLARSN LDEDIIAEEN IVSRSEFPES WLWNVEDLKE PPKNGISTK LMNIFLKDSI TTWEILAVSM SDKKGICVAD PFEVTVMQDF FIDLRLPYSV V RNEQVEIR AVLYNYRQNQ ELKVRVELLH NPAFCSLATT KRRHQQTVTI PPKSSLSVPY VI VPLKTGL QEVEVKAAVY HHFISDGVRK SLKVVPEGIR MNKTVAVRTL DPERLGREGV QKE DIPPAD LSDQVPDTES ETRILLQGTP VAQMTEDAVD AERLKHLIVT PSGCGEQNMI GMTP TVIAV HYLDETEQWE KFGLEKRQGA LELIKKGYTQ QLAFRQPSSA FAAFVKRAPS TWLTA YVVK VFSLAVNLIA IDSQVLCGAV KWLILEKQKP DGVFQEDAPV IHQEMIGGLR NNNEKD MAL TAFVLISLQE AKDICEEQVN SLPGSITKAG DFLEANYMNL QRSYTVAIAG YALAQMG RL KGPLLNKFLT TAKDKNRWED PGKQLYNVEA TSYALLALLQ LKDFDFVPPV VRWLNEQR Y YGGGYGSTQA TFMVFQALAQ YQKDAPDHQE LNLDVSLQLP SRSSKITHRI HWESASLLR SEETKENEGF TVTAEGKGQG TLSVVTMYHA KAKDQLTCNK FDLKVTIKPA PETEKRPQDA KNTMILEIC TRYRGDQDAT MSILDISMMT GFAPDTDDLK QLANGVDRYI SKYELDKAFS D RNTLIIYL DKVSHSEDDC LAFKVHQYFN VELIQPGAVK VYAYYNLEES CTRFYHPEKE DG KLNKLCR DELCRCAEEN CFIQKSDDKV TLEERLDKAC EPGVDYVYKT RLVKVQLSND FDE YIMAIE QTIKSGSDEV QVGQQRTFIS PIKCREALKL EEKKHYLMWG LSSDFWGEKP NLSY IIGKD TWVEHWPEED ECQDEENQKQ CQDLGAFTES MVVFGCPN UniProtKB: Complement C3 |
-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
濃度 | 0.2 mg/mL | |||||||||
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緩衝液 | pH: 6 構成要素:
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凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV | |||||||||
詳細 | Vast majority of C3* with negligible amounts of native C3 and C3MA |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 8263 / 平均露光時間: 1.4 sec. / 平均電子線量: 59.5 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 50.0 µm / 最大 デフォーカス(補正後): 2.4 µm 最小 デフォーカス(補正後): 0.7000000000000001 µm 倍率(補正後): 130000 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 0.8 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |