+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8qri | ||||||
---|---|---|---|---|---|---|---|
タイトル | TRRAP and EP400 in the human Tip60 complex | ||||||
![]() |
| ||||||
![]() | TRANSCRIPTION / Eukaryotic transcription / Histone acetyltransferase / chromatin remodeling / Complex | ||||||
機能・相同性 | ![]() transcription factor TFTC complex / Swr1 complex / protein antigen binding / regulation of double-strand break repair / SAGA complex / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / DNA repair-dependent chromatin remodeling / NuA4 histone acetyltransferase complex / regulation of RNA splicing / positive regulation of double-strand break repair via homologous recombination ...transcription factor TFTC complex / Swr1 complex / protein antigen binding / regulation of double-strand break repair / SAGA complex / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / DNA repair-dependent chromatin remodeling / NuA4 histone acetyltransferase complex / regulation of RNA splicing / positive regulation of double-strand break repair via homologous recombination / regulation of DNA repair / helicase activity / transcription coregulator activity / Formation of the beta-catenin:TCF transactivating complex / DNA Damage/Telomere Stress Induced Senescence / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / nucleosome / chromatin organization / HATs acetylate histones / regulation of apoptotic process / hydrolase activity / regulation of cell cycle / Ub-specific processing proteases / nuclear speck / DNA repair / chromatin binding / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / positive regulation of DNA-templated transcription / Golgi apparatus / DNA binding / nucleoplasm / ATP binding / nucleus 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: 3.5 Å | ||||||
![]() | Li, C. / Smirnova, E. / Schnitzler, C. / Crucifix, C. / Concordet, J.P. / Brion, A. / Poterszman, A. / SChultz, P. / Papai, G. / Ben-Shem, A. | ||||||
資金援助 | ![]()
| ||||||
![]() | ![]() タイトル: Structure of the human TIP60-C histone exchange and acetyltransferase complex. 著者: Changqing Li / Ekaterina Smirnova / Charlotte Schnitzler / Corinne Crucifix / Jean Paul Concordet / Alice Brion / Arnaud Poterszman / Patrick Schultz / Gabor Papai / Adam Ben-Shem / ![]() 要旨: Chromatin structure is a key regulator of DNA transcription, replication and repair. In humans, the TIP60-EP400 complex (TIP60-C) is a 20-subunit assembly that affects chromatin structure through two ...Chromatin structure is a key regulator of DNA transcription, replication and repair. In humans, the TIP60-EP400 complex (TIP60-C) is a 20-subunit assembly that affects chromatin structure through two enzymatic activities: ATP-dependent exchange of histone H2A-H2B for H2A.Z-H2B, and histone acetylation. In yeast, however, these activities are performed by two independent complexes-SWR1 and NuA4, respectively. How the activities of the two complexes are merged into one supercomplex in humans, and what this association entails for the structure and mechanism of the proteins and their recruitment to chromatin, are unknown. Here we describe the structure of the endogenous human TIP60-C. We find a three-lobed architecture composed of SWR1-like (SWR1L) and NuA4-like (NuA4L) parts, which associate with a TRRAP activator-binding module. The huge EP400 subunit contains the ATPase motor, traverses the junction between SWR1L and NuA4L twice and constitutes the scaffold of the three-lobed architecture. NuA4L is completely rearranged compared with its yeast counterpart. TRRAP is flexibly tethered to NuA4L-in stark contrast to its robust connection to the completely opposite side of NuA4 in yeast. A modelled nucleosome bound to SWR1L, supported by tests of TIP60-C activity, suggests that some aspects of the histone exchange mechanism diverge from what is seen in yeast. Furthermore, a fixed actin module (as opposed to the mobile actin subcomplex in SWR1; ref. ), the flexibility of TRRAP and the weak effect of extranucleosomal DNA on exchange activity lead to a different, activator-based mode of enlisting TIP60-C to chromatin. | ||||||
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 | ![]() | 1.2 MB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 964 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 | ![]() 18619MC ![]() 8qr1C 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 |
|
-
要素
#1: タンパク質 | 分子量: 438139.531 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
---|---|
#2: タンパク質 | 分子量: 343867.312 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() 参照: UniProt: Q96L91, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 |
Has protein modification | Y |
-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 Tip60 complex / タイプ: COMPLEX / Entity ID: all / 由来: NATURAL | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
由来(天然) | 生物種: ![]() | ||||||||||||||||||||||||||||||||
緩衝液 | pH: 8 | ||||||||||||||||||||||||||||||||
緩衝液成分 |
| ||||||||||||||||||||||||||||||||
試料 | 濃度: 0.2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 279 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: FEI TITAN 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): 3200 nm / 最小 デフォーカス(公称値): 1500 nm / Cs: 0.01 mm / アライメント法: ZEMLIN TABLEAU |
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: 52 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-
解析
EMソフトウェア |
| |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 181210 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL |