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基本情報
登録情報 | データベース: PDB / ID: 1hw8 | ||||||
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タイトル | COMPLEX OF THE CATALYTIC PORTION OF HUMAN HMG-COA REDUCTASE WITH COMPACTIN (ALSO KNOWN AS MEVASTATIN) | ||||||
![]() | HMG-COA REDUCTASE | ||||||
![]() | OXIDOREDUCTASE / protein-inhibitor complex | ||||||
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 | ![]() ![]() | ||||||
![]() | Istvan, E.S. / Deisenhofer, J. | ||||||
![]() | ![]() 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 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 305.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 243.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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単位格子 |
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要素
#1: タンパク質 | 分子量: 50021.523 Da / 分子数: 4 / 断片: CATALYTIC PORTION / 変異: M485I / 由来タイプ: 組換発現 詳細: COMPLEXED WITH COMPACTIN (MEVASTATIN), NATURAL PRODUCT OF PENICILLIUM CITRINUM 由来: (組換発現) ![]() ![]() ![]() 参照: UniProt: P04035, hydroxymethylglutaryl-CoA reductase (NADPH) #2: 化合物 | ChemComp-114 / ( #3: 化合物 | #4: 水 | ChemComp-HOH / | |
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-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 2.1 Å3/Da / 溶媒含有率: 42 % | ||||||||||||||||||||||||||||||||||||||||
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結晶化 | 温度: 294 K / 手法: microseeding / pH: 7.5 詳細: PEG 4000, ammonium acetate, glycerol, DTT, Hepes, Microseeding, pH 7.5 at 294 K | ||||||||||||||||||||||||||||||||||||||||
結晶化 | *PLUS 温度: 21 ℃ / 手法: batch method / 詳細: used microseeding | ||||||||||||||||||||||||||||||||||||||||
溶液の組成 | *PLUS
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-データ収集
回折 | 平均測定温度: 123 K |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: ADSC QUANTUM 4 / 検出器: CCD / 日付: 2000年7月2日 / 詳細: mirror |
放射 | モノクロメーター: horizontally bent Si (111) / プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.942 Å / 相対比: 1 |
反射 | 解像度: 2.08→100 Å / Num. all: 89730 / Num. obs: 89730 / % possible obs: 91.6 % / Observed criterion σ(I): -3 / 冗長度: 2.4 % / Biso Wilson estimate: 21.4 Å2 / Rmerge(I) obs: 0.054 / Net I/σ(I): 14.8 |
反射 シェル | 解像度: 2.08→2.12 Å / 冗長度: 1.8 % / Rmerge(I) obs: 0.458 / Mean I/σ(I) obs: 1.6 / Num. unique all: 3268 / % possible all: 66.8 |
反射 | *PLUS |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: difference fourier 開始モデル: pdb entry 1dqa 解像度: 2.1→43.13 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 2470315.49 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / 交差検証法: THROUGHOUT / σ(I): -3 / 立体化学のターゲット値: Engh & Huber / 詳細: ncs-restraints were used
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溶媒の処理 | 溶媒モデル: FLAT MODEL / Bsol: 31.2 Å2 / ksol: 0.372 e/Å3 | ||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 36.8 Å2
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Refine analyze |
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精密化ステップ | サイクル: LAST / 解像度: 2.1→43.13 Å
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拘束条件 |
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Refine LS restraints NCS | Weight Biso : 5 / Weight position: 250 | ||||||||||||||||||||||||||||||||||||||||
LS精密化 シェル | 解像度: 2.1→2.23 Å / Rfactor Rfree error: 0.014 / Total num. of bins used: 6
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Xplor file |
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ソフトウェア | *PLUS 名称: CNS / バージョン: 1 / 分類: refinement | ||||||||||||||||||||||||||||||||||||||||
精密化 | *PLUS % reflection Rfree: 2.2 % / Rfactor obs: 0.191 | ||||||||||||||||||||||||||||||||||||||||
溶媒の処理 | *PLUS | ||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | *PLUS Biso mean: 36.8 Å2 | ||||||||||||||||||||||||||||||||||||||||
拘束条件 | *PLUS
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LS精密化 シェル | *PLUS Rfactor Rfree: 0.26 / % reflection Rfree: 2.5 % / Rfactor Rwork: 0.236 |