Loading
PDBj
メニューPDBj@FacebookPDBj@X(formerly Twitter)PDBj@BlueSkyPDBj@YouTubewwPDB FoundationwwPDBDonate
RCSB PDBPDBeBMRBAdv. SearchSearch help

2ZDX

Inhibitor-bound structures of human pyruvate dehydrogenase kinase 4

2ZDX の概要
エントリーDOI10.2210/pdb2zdx/pdb
関連するPDBエントリー2ZDY
分子名称Pyruvate dehydrogenase kinase isozyme 4, 4-[4-(4-methoxyphenyl)-5-methyl-1H-pyrazol-3-yl]benzene-1,3-diol (3 entities in total)
機能のキーワードpdk4, kinase, atp-binding, inhibitor, carbohydrate metabolism, glucose metabolism, mitochondrion, phosphoprotein, transferase, transit peptide
由来する生物種Homo sapiens (Human)
細胞内の位置Mitochondrion matrix: Q16654
タンパク質・核酸の鎖数2
化学式量合計90134.63
構造登録者
Kawamoto, M.,Shiromizu, I.,Kukimoto-niino, M.,Tokmakov, A.,Terada, T.,Shirouzu, M.,Matsusue, T.,Yokoyama, S. (登録日: 2007-11-30, 公開日: 2008-12-09, 最終更新日: 2023-11-01)
主引用文献Kukimoto-Niino, M.,Tokmakov, A.,Terada, T.,Ohbayashi, N.,Fujimoto, T.,Gomi, S.,Shiromizu, I.,Kawamoto, M.,Matsusue, T.,Shirouzu, M.,Yokoyama, S.
Inhibitor-bound structures of human pyruvate dehydrogenase kinase 4.
Acta Crystallogr.,Sect.D, 67:763-773, 2011
Cited by
PubMed Abstract: The mitochondrial pyruvate dehydrogenase complex (PDC) catalyzes the oxidative decarboxylation of pyruvate to acetyl-CoA. PDC activity is tightly regulated by four members of a family of pyruvate dehydrogenase kinase isoforms (PDK1-4), which phosphorylate and inactivate PDC. Recently, the development of specific inhibitors of PDK4 has become an especially important focus for the pharmaceutical management of diabetes and obesity. In this study, crystal structures of human PDK4 complexed with either AMPPNP, ADP or the inhibitor M77976 were determined. ADP-bound PDK4 has a slightly wider active-site cleft and a more disordered ATP lid compared with AMPPNP-bound PDK4, although both forms of PDK4 assume open conformations with a wider active-site cleft than that in the closed conformation of the previously reported ADP-bound PDK2 structure. M77976 binds to the ATP-binding pocket of PDK4 and causes local conformational changes with complete disordering of the ATP lid. M77976 binding also leads to a large domain rearrangement that further expands the active-site cleft of PDK4 compared with the ADP- and AMPPNP-bound forms. Biochemical analyses revealed that M77976 inhibits PDK4 with increased potency compared with the previously characterized PDK inhibitor radicicol. Thus, the present structures demonstrate for the first time the flexible and dynamic aspects of PDK4 in the open conformation and provide a basis for the development of novel inhibitors targeting the nucleotide-binding pocket of PDK4.
PubMed: 21904029
DOI: 10.1107/S090744491102405X
主引用文献が同じPDBエントリー
実験手法
X-RAY DIFFRACTION (2.54 Å)
構造検証レポート
Validation report summary of 2zdx
検証レポート(詳細版)ダウンロードをダウンロード

234440

件を2025-04-09に公開中

PDB statisticsPDBj update infoContact PDBjnumon