+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7tof | ||||||
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タイトル | Structure of G6PD-WT dimer with no symmetry applied | ||||||
要素 | Glucose-6-phosphate 1-dehydrogenase | ||||||
キーワード | OXIDOREDUCTASE / apo protein | ||||||
機能・相同性 | 機能・相同性情報 negative regulation of protein glutathionylation / pentose biosynthetic process / ribose phosphate biosynthetic process / positive regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / glucose-6-phosphate dehydrogenase (NADP+) / pentose-phosphate shunt, oxidative branch / glucose-6-phosphate dehydrogenase activity / response to iron(III) ion / Pentose phosphate pathway / NADPH regeneration ...negative regulation of protein glutathionylation / pentose biosynthetic process / ribose phosphate biosynthetic process / positive regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / glucose-6-phosphate dehydrogenase (NADP+) / pentose-phosphate shunt, oxidative branch / glucose-6-phosphate dehydrogenase activity / response to iron(III) ion / Pentose phosphate pathway / NADPH regeneration / negative regulation of cell growth involved in cardiac muscle cell development / glucose 6-phosphate metabolic process / NADP metabolic process / pentose-phosphate shunt / D-glucose binding / NFE2L2 regulates pentose phosphate pathway genes / response to food / cholesterol biosynthetic process / erythrocyte maturation / centriolar satellite / negative regulation of reactive oxygen species metabolic process / regulation of neuron apoptotic process / substantia nigra development / glutathione metabolic process / TP53 Regulates Metabolic Genes / lipid metabolic process / response to organic cyclic compound / cytoplasmic side of plasma membrane / glucose metabolic process / NADP binding / cellular response to oxidative stress / response to ethanol / intracellular membrane-bounded organelle / protein homodimerization activity / extracellular exosome / identical protein binding / membrane / cytosol / cytoplasm 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: 3.7 Å | ||||||
データ登録者 | Wei, X. / Marmorstein, R. | ||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2022 タイトル: Allosteric role of a structural NADP molecule in glucose-6-phosphate dehydrogenase activity. 著者: Xuepeng Wei / Kathryn Kixmoeller / Elana Baltrusaitis / Xiaolu Yang / Ronen Marmorstein / 要旨: Human glucose-6-phosphate dehydrogenase (G6PD) is the main cellular source of NADPH, and thus plays a key role in maintaining reduced glutathione to protect cells from oxidative stress disorders such ...Human glucose-6-phosphate dehydrogenase (G6PD) is the main cellular source of NADPH, and thus plays a key role in maintaining reduced glutathione to protect cells from oxidative stress disorders such as hemolytic anemia. G6PD is a multimeric enzyme that uses the cofactors β-D-glucose 6-phosphate (G6P) and "catalytic" NADP (NADPc), as well as a "structural" NADP (NADPs) located ∼25 Å from the active site, to generate NADPH. While X-ray crystallographic and biochemical studies have revealed a role for NADPs in maintaining the catalytic activity by stabilizing the multimeric G6PD conformation, other potential roles for NADPs have not been evaluated. Here, we determined the high resolution cryo-electron microscopy structures of human wild-type G6PD in the absence of bound ligands and a catalytic G6PD-D200N mutant bound to NADPc and NADPs in the absence or presence of G6P. A comparison of these structures, together with previously reported structures, reveals that the unliganded human G6PD forms a mixture of dimers and tetramers with similar overall folds, and binding of NADPs induces a structural ordering of a C-terminal extension region and allosterically regulates G6P binding and catalysis. These studies have implications for understanding G6PD deficiencies and for therapy of G6PD-mediated disorders. | ||||||
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 | 7tof.cif.gz | 173.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7tof.ent.gz | 139.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7tof.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 | 7tof_validation.pdf.gz | 808.7 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7tof_full_validation.pdf.gz | 827.2 KB | 表示 | |
XML形式データ | 7tof_validation.xml.gz | 32.4 KB | 表示 | |
CIF形式データ | 7tof_validation.cif.gz | 47.3 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/to/7tof ftp://data.pdbj.org/pub/pdb/validation_reports/to/7tof | HTTPS FTP |
-関連構造データ
関連構造データ | 26031MC 7snfC 7sngC 7snhC 7sniC 7toeC 7ualC 7uc2C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 59332.586 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: G6PD / 発現宿主: Escherichia coli (大腸菌) 参照: UniProt: P11413, glucose-6-phosphate dehydrogenase (NADP+) |
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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: G6PD protein / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 値: 0.11 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: Escherichia coli (大腸菌) |
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 |
急速凍結 | 凍結剤: ETHANE |
-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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 40 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 76546 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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