+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7q4d | ||||||
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タイトル | Local refinement structure of the two interacting N-domains of full-length, dimeric, soluble somatic angiotensin I-converting enzyme | ||||||
要素 | Angiotensin-converting enzyme | ||||||
キーワード | HYDROLASE / Zinc metalloprotease Dicarboxypeptidase Glycoprotein | ||||||
機能・相同性 | 機能・相同性情報 mononuclear cell proliferation / cell proliferation in bone marrow / bradykinin receptor binding / tripeptidyl-peptidase activity / exopeptidase activity / regulation of angiotensin metabolic process / substance P catabolic process / peptidyl-dipeptidase A / regulation of renal output by angiotensin / positive regulation of peptidyl-cysteine S-nitrosylation ...mononuclear cell proliferation / cell proliferation in bone marrow / bradykinin receptor binding / tripeptidyl-peptidase activity / exopeptidase activity / regulation of angiotensin metabolic process / substance P catabolic process / peptidyl-dipeptidase A / regulation of renal output by angiotensin / positive regulation of peptidyl-cysteine S-nitrosylation / negative regulation of calcium ion import / response to laminar fluid shear stress / positive regulation of systemic arterial blood pressure / negative regulation of gap junction assembly / metallodipeptidase activity / cellular response to aldosterone / hormone catabolic process / bradykinin catabolic process / angiogenesis involved in coronary vascular morphogenesis / response to thyroid hormone / negative regulation of D-glucose import / vasoconstriction / neutrophil mediated immunity / regulation of smooth muscle cell migration / regulation of hematopoietic stem cell proliferation / hormone metabolic process / antigen processing and presentation of peptide antigen via MHC class I / mitogen-activated protein kinase binding / embryo development ending in birth or egg hatching / chloride ion binding / mitogen-activated protein kinase kinase binding / positive regulation of neurogenesis / heterocyclic compound binding / lung alveolus development / arachidonate secretion / post-transcriptional regulation of gene expression / eating behavior / peptide catabolic process / heart contraction / response to dexamethasone / regulation of heart rate by cardiac conduction / regulation of systemic arterial blood pressure by renin-angiotensin / blood vessel remodeling / hematopoietic stem cell differentiation / regulation of vasoconstriction / peptidyl-dipeptidase activity / animal organ regeneration / amyloid-beta metabolic process / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / positive regulation of vasoconstriction / carboxypeptidase activity / sperm midpiece / blood vessel diameter maintenance / basal plasma membrane / response to nutrient levels / kidney development / angiotensin-activated signaling pathway / female pregnancy / cellular response to glucose stimulus / brush border membrane / regulation of synaptic plasticity / metalloendopeptidase activity / regulation of blood pressure / male gonad development / metallopeptidase activity / peptidase activity / actin binding / spermatogenesis / endopeptidase activity / response to lipopolysaccharide / lysosome / response to hypoxia / calmodulin binding / endosome / positive regulation of apoptotic process / response to xenobiotic stimulus / external side of plasma membrane / negative regulation of gene expression / proteolysis / extracellular space / extracellular exosome / zinc ion binding / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.78 Å | ||||||
データ登録者 | Lubbe, L. / Sewell, B.T. / Sturrock, E.D. | ||||||
資金援助 | 英国, 1件
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引用 | ジャーナル: EMBO J / 年: 2022 タイトル: Cryo-EM reveals mechanisms of angiotensin I-converting enzyme allostery and dimerization. 著者: Lizelle Lubbe / Bryan Trevor Sewell / Jeremy D Woodward / Edward D Sturrock / 要旨: Hypertension (high blood pressure) is a major risk factor for cardiovascular disease, which is the leading cause of death worldwide. The somatic isoform of angiotensin I-converting enzyme (sACE) ...Hypertension (high blood pressure) is a major risk factor for cardiovascular disease, which is the leading cause of death worldwide. The somatic isoform of angiotensin I-converting enzyme (sACE) plays a critical role in blood pressure regulation, and ACE inhibitors are thus widely used to treat hypertension and cardiovascular disease. Our current understanding of sACE structure, dynamics, function, and inhibition has been limited because truncated, minimally glycosylated forms of sACE are typically used for X-ray crystallography and molecular dynamics simulations. Here, we report the first cryo-EM structures of full-length, glycosylated, soluble sACE (sACE ). Both monomeric and dimeric forms of the highly flexible apo enzyme were reconstructed from a single dataset. The N- and C-terminal domains of monomeric sACE were resolved at 3.7 and 4.1 Å, respectively, while the interacting N-terminal domains responsible for dimer formation were resolved at 3.8 Å. Mechanisms are proposed for intradomain hinging, cooperativity, and homodimerization. Furthermore, the observation that both domains were in the open conformation has implications for the design of sACE modulators. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7q4d.cif.gz | 460.6 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7q4d.ent.gz | 373.9 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7q4d.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 7q4d_validation.pdf.gz | 2.5 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7q4d_full_validation.pdf.gz | 2.5 MB | 表示 | |
XML形式データ | 7q4d_validation.xml.gz | 50.1 KB | 表示 | |
CIF形式データ | 7q4d_validation.cif.gz | 70.4 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/q4/7q4d ftp://data.pdbj.org/pub/pdb/validation_reports/q4/7q4d | HTTPS FTP |
-関連構造データ
関連構造データ | 13803MC 7q3yC 7q49C 7q4cC 7q4eC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
電子顕微鏡画像生データ | EMPIAR-10980 (タイトル: Cryo-EM structures of monomeric and dimeric human somatic angiotensin I-converting enzyme (apo form) Data size: 3.8 TB Data #1: Unaligned multi-frame cryo-EM micrographs of human somatic angiotensin I-converting enzyme in the apo state [micrographs - multiframe]) |
-リンク
-集合体
登録構造単位 |
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2 |
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-要素
-タンパク質 / 非ポリマー , 2種, 4分子 AB
#1: タンパク質 | 分子量: 139614.000 Da / 分子数: 2 / 変異: P576L / 由来タイプ: 組換発現 詳細: Soluble secreted form of human somatic angiotensin I-converting enzyme terminating at Ser1211 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ACE, DCP, DCP1 / プラスミド: pcDNA3.1+ / 細胞株 (発現宿主): CHO-K1 発現宿主: Cricetulus griseus (モンゴルキヌゲネズミ) 参照: UniProt: P12821, 加水分解酵素; 糖加水分解酵素; 配糖体結合加水分解酵素または糖加水分解酵素, peptidyl-dipeptidase A #7: 化合物 | |
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-糖 , 6種, 16分子
#2: 多糖 | #3: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 多糖 | #5: 多糖 | #6: 多糖 | #8: 糖 | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: Full-length, soluble, dimeric somatic angiotensin I-converting enzyme タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.279 MDa / 実験値: NO | ||||||||||||||||||||
由来(天然) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||
由来(組換発現) | 生物種: Cricetulus griseus (モンゴルキヌゲネズミ) プラスミド: pcDNA3.1+ | ||||||||||||||||||||
緩衝液 | pH: 7.5 / 詳細: Solutions were prepared with deionized water | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 1.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: The protein was stored at 3.0mg/ml in 50mM HEPES (pH 7.5) and diluted immediately prior to grid preparation | ||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R2/2 | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K 詳細: Diluted protein (in buffer containing zinc chloride and sodium chloride) was incubated on ice for 30 minutes after which it was applied to the grid, incubated for 30 seconds, and blotted for ...詳細: Diluted protein (in buffer containing zinc chloride and sodium chloride) was incubated on ice for 30 minutes after which it was applied to the grid, incubated for 30 seconds, and blotted for 3 seconds before plunging |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1800 nm / Cs: 2.7 mm |
試料ホルダ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 3 sec. / 電子線照射量: 43 e/Å2 / 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: 11628 詳細: Images were recorded in super-resolution mode with 40 frames per image |
画像スキャン | 横: 5760 / 縦: 4092 |
-解析
ソフトウェア |
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EMソフトウェア |
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CTF補正 | 詳細: cryoSPARC patch-based CTF estimation / タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1727045 詳細: Topaz-denoising was performed on all curated micrographs, a Topaz model trained on this dataset, and used for picking | ||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.78 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 215632 詳細: Local refinement (C1) with a mask around the two interacting N-domains following C-domain particle subtraction in RELION and C2 symmetry expansion in cryoSPARC クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL / Target criteria: Correlation coefficient | ||||||||||||||||||||||||||||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 81.84 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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