- PDB-8kgt: Structure of African swine fever virus topoisomerase II in comple... -
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基本情報
登録情報
データベース: PDB / ID: 8kgt
タイトル
Structure of African swine fever virus topoisomerase II in complex with dsDNA
要素
DNA topoisomerase 2
キーワード
VIRAL PROTEIN / topo 2
機能・相同性
機能・相同性情報
sister chromatid segregation / DNA negative supercoiling activity / DNA topoisomerase (ATP-hydrolysing) / DNA topological change / DNA binding / ATP binding / metal ion binding 類似検索 - 分子機能
C-terminal associated domain of TOPRIM / C-terminal associated domain of TOPRIM / DNA topoisomerase II, eukaryotic-type / : / DNA topoisomerase, type IIA, alpha-helical domain superfamily / DNA topoisomerase, type IIA, domain A / DNA topoisomerase, type IIA, domain A, alpha-beta / DNA gyrase/topoisomerase IV, subunit A / DNA Topoisomerase IV / DNA topoisomerase, type IIA ...C-terminal associated domain of TOPRIM / C-terminal associated domain of TOPRIM / DNA topoisomerase II, eukaryotic-type / : / DNA topoisomerase, type IIA, alpha-helical domain superfamily / DNA topoisomerase, type IIA, domain A / DNA topoisomerase, type IIA, domain A, alpha-beta / DNA gyrase/topoisomerase IV, subunit A / DNA Topoisomerase IV / DNA topoisomerase, type IIA / DNA topoisomerase, type IIA, conserved site / DNA topoisomerase II signature. / TopoisomeraseII / DNA topoisomerase, type IIA, subunit B, C-terminal / DNA topoisomerase, type IIA-like domain superfamily / Histidine kinase/HSP90-like ATPase superfamily / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold 類似検索 - ドメイン・相同性
ADENOSINE-5'-DIPHOSPHATE / DNA topoisomerase 2 類似検索 - 構成要素
ジャーナル: Nat Commun / 年: 2024 タイトル: Structural insights into the DNA topoisomerase II of the African swine fever virus. 著者: Jingyuan Cong / Yuhui Xin / Huiling Kang / Yunge Yang / Chenlong Wang / Dongming Zhao / Xuemei Li / Zihe Rao / Yutao Chen / 要旨: Type II topoisomerases are ubiquitous enzymes that play a pivotal role in modulating the topological configuration of double-stranded DNA. These topoisomerases are required for DNA metabolism and ...Type II topoisomerases are ubiquitous enzymes that play a pivotal role in modulating the topological configuration of double-stranded DNA. These topoisomerases are required for DNA metabolism and have been extensively studied in both prokaryotic and eukaryotic organisms. However, our understanding of virus-encoded type II topoisomerases remains limited. One intriguing example is the African swine fever virus, which stands as the sole mammalian-infecting virus encoding a type II topoisomerase. In this work, we use several approaches including cryo-EM, X-ray crystallography, and biochemical assays to investigate the structure and function of the African swine fever virus type II topoisomerase, pP1192R. We determine the structures of pP1192R in different conformational states and confirm its enzymatic activity in vitro. Collectively, our results illustrate the basic mechanisms of viral type II topoisomerases, increasing our understanding of these enzymes and presenting a potential avenue for intervention strategies to mitigate the impact of the African swine fever virus.
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: 1.5418 Å / 相対比: 1
反射
解像度: 2.3→50 Å / Num. obs: 20799 / % possible obs: 99.4 % / 冗長度: 8.2 % / CC1/2: 0.999 / CC star: 1 / Rmerge(I) obs: 0.094 / Rpim(I) all: 0.055 / Rrim(I) all: 0.159 / Net I/σ(I): 14.22
反射 シェル
解像度: 2.3→2.34 Å / 冗長度: 7.7 % / Rmerge(I) obs: 0.945 / Mean I/σ(I) obs: 2.24 / Num. unique obs: 996 / CC1/2: 0.629 / CC star: 0.879 / % possible all: 99.4
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解析
ソフトウェア
名称
バージョン
分類
PHENIX
5.8.0405
精密化
HKL-2000
データ削減
HKL-2000
データスケーリング
PHASER
位相決定
精密化
構造決定の手法: 分子置換 / 解像度: 2.3→42.79 Å / Cor.coef. Fo:Fc: 0.953 / Cor.coef. Fo:Fc free: 0.919 / SU B: 7.478 / SU ML: 0.177 / 交差検証法: THROUGHOUT / ESU R: 0.31 / ESU R Free: 0.233 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD / 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
Rfactor
反射数
%反射
Selection details
Rfree
0.24593
988
4.8 %
RANDOM
Rwork
0.19314
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obs
0.19559
19793
99.56 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK