+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8s6b | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | CryoEM structure of Apo form of catalytic domain of human HMG-CoA reductase | ||||||||||||||||||||||||||||||
![]() | 3-hydroxy-3-methylglutaryl-coenzyme A reductase | ||||||||||||||||||||||||||||||
![]() | OXIDOREDUCTASE / reductase / cholesterol biosynthesis / lipitor / atorvastatin / statins | ||||||||||||||||||||||||||||||
機能・相同性 | ![]() hydroxymethylglutaryl-CoA reductase (NADPH) / hydroxymethylglutaryl-CoA reductase (NADPH) activity / sterol biosynthetic process / GTPase regulator activity / coenzyme A binding / negative regulation of amyloid-beta clearance / Cholesterol biosynthesis / EGR2 and SOX10-mediated initiation of Schwann cell myelination / coenzyme A metabolic process / isoprenoid biosynthetic process ...hydroxymethylglutaryl-CoA reductase (NADPH) / hydroxymethylglutaryl-CoA reductase (NADPH) activity / sterol biosynthetic process / GTPase regulator activity / coenzyme A binding / negative regulation of amyloid-beta clearance / Cholesterol biosynthesis / EGR2 and SOX10-mediated initiation of Schwann cell myelination / coenzyme A metabolic process / isoprenoid biosynthetic process / peroxisomal membrane / cholesterol biosynthetic process / negative regulation of protein secretion / NADPH binding / regulation of ERK1 and ERK2 cascade / Activation of gene expression by SREBF (SREBP) / PPARA activates gene expression / visual learning / negative regulation of protein catabolic process / long-term synaptic potentiation / endoplasmic reticulum membrane / endoplasmic reticulum 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||
生物種 | ![]() | ||||||||||||||||||||||||||||||
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: 2.06 Å | ||||||||||||||||||||||||||||||
![]() | Manikandan, K. / Van Rooyen, J. | ||||||||||||||||||||||||||||||
資金援助 | ![]()
| ||||||||||||||||||||||||||||||
![]() | ![]() タイトル: Cryo-EM structures of apo and atorvastatin-bound human 3-hydroxy-3-methylglutaryl-coenzyme A reductase. 著者: Manikandan Karuppasamy / Jason van Rooyen / ![]() 要旨: The enzyme 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGR) regulates the level of cholesterol by catalysing the formation/production of mevalonate and has therefore become an important ...The enzyme 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGR) regulates the level of cholesterol by catalysing the formation/production of mevalonate and has therefore become an important pharmaceutical target for coronary heart disease. Here, we report the cryo-EM structure of the catalytic part of the enzyme in the apo form and bound with its inhibitor atorvastatin, a commonly used drug in cardiovascular disease, at resolutions of 2.1 and 2.3 Å, respectively. In the cryo-EM maps, part of the N-domain corresponding to amino acids 439-487 is well ordered and could be modelled completely. Atorvastatin molecules were found to occupy all four active sites of the tetrameric complex, and the binding does not alter the conformation of the protein or the active site. The method described here exploits graphene oxide as an additional support and could be used as an alternative to elucidate the structures of pharmaceutical target compounds that are difficult to co-crystallize with human HMGR and for sparsely available samples in drug discovery. #1: ![]() タイトル: Structural mechanism for statin inhibition of HMG-CoA reductase. 著者: E S Istvan / J Deisenhofer / ![]() 要旨: HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase (HMGR) catalyzes the committed step in cholesterol biosynthesis. Statins are HMGR inhibitors with inhibition constant values in the nanomolar ...HMG-CoA (3-hydroxy-3-methylglutaryl-coenzyme A) reductase (HMGR) catalyzes the committed step in cholesterol biosynthesis. Statins are HMGR inhibitors with inhibition constant values in the nanomolar range that effectively lower serum cholesterol levels and are widely prescribed in the treatment of hypercholesterolemia. We have determined structures of the catalytic portion of human HMGR complexed with six different statins. The statins occupy a portion of the binding site of HMG-CoA, thus blocking access of this substrate to the active site. Near the carboxyl terminus of HMGR, several catalytically relevant residues are disordered in the enzyme-statin complexes. If these residues were not flexible, they would sterically hinder statin binding. | ||||||||||||||||||||||||||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 94.4 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 66.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
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 | ![]() 19757MC ![]() 8pknC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
-
集合体
登録構造単位 | ![]()
| ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | ![]()
| ||||||||||||||||||||
非結晶学的対称性 (NCS) | NCS oper:
|
-
要素
#1: タンパク質 | 分子量: 45259.016 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() 参照: UniProt: P04035, hydroxymethylglutaryl-CoA reductase (NADPH) |
---|---|
Has protein modification | N |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
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: human HMGCoA catalytic domain reductase / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
---|---|
分子量 | 値: 0.24 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
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 |
-
電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 54.8 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 1 / 実像数: 13644 |
-
解析
EMソフトウェア |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
画像処理 | 詳細: Falcon4i | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 5498554 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: D2 (2回x2回 2面回転対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.06 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1066707 / 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 1hwk PDB chain-ID: A / Accession code: 1hwk / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化 | 解像度: 2.06→148 Å / Cor.coef. Fo:Fc: 0.902 / WRfactor Rwork: 0.347 / SU B: 3.133 / SU ML: 0.08 / Average fsc free: 0 / Average fsc overall: 0.8476 / Average fsc work: 0.8476 / ESU R: 0.072 / 詳細: Hydrogens have been added in their riding positions
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
溶媒の処理 | 溶媒モデル: NONE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 65.189 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
|