+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 7r1d | ||||||
---|---|---|---|---|---|---|---|
タイトル | Structure of MuvB complex | ||||||
![]() |
| ||||||
![]() | CELL CYCLE / Quiescence / transcription | ||||||
機能・相同性 | ![]() Myb complex / CAF-1 complex / NuRD complex / NURF complex / regulation of cell fate specification / negative regulation of stem cell population maintenance / DNA replication-dependent chromatin assembly / ESC/E(Z) complex / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / regulation of stem cell differentiation ...Myb complex / CAF-1 complex / NuRD complex / NURF complex / regulation of cell fate specification / negative regulation of stem cell population maintenance / DNA replication-dependent chromatin assembly / ESC/E(Z) complex / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / regulation of stem cell differentiation / Polo-like kinase mediated events / Transcription of E2F targets under negative control by DREAM complex / DNA biosynthetic process / ATPase complex / Sin3-type complex / G1/S-Specific Transcription / positive regulation of stem cell population maintenance / Transcriptional Regulation by E2F6 / RNA Polymerase I Transcription Initiation / histone deacetylase complex / G0 and Early G1 / Transcriptional regulation of brown and beige adipocyte differentiation by EBF2 / Cyclin E associated events during G1/S transition / Cyclin A:Cdk2-associated events at S phase entry / Regulation of TP53 Activity through Acetylation / Deposition of new CENPA-containing nucleosomes at the centromere / transcription repressor complex / negative regulation of cell migration / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Regulation of PTEN gene transcription / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / negative regulation of transforming growth factor beta receptor signaling pathway / brain development / PKMTs methylate histone lysines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / histone deacetylase binding / HCMV Early Events / nucleosome assembly / Oxidative Stress Induced Senescence / histone binding / Potential therapeutics for SARS / chromosome, telomeric region / DNA replication / regulation of cell cycle / chromatin remodeling / RNA polymerase II cis-regulatory region sequence-specific DNA binding / negative regulation of cell population proliferation / DNA repair / negative regulation of DNA-templated transcription / DNA-templated transcription / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / chromatin / positive regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / nucleoplasm / nucleus / cytosol 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 | ||||||
![]() | Koliopoulos, M.G. / Alfieri, C. | ||||||
資金援助 | ![]()
| ||||||
![]() | ![]() タイトル: Structure of a nucleosome-bound MuvB transcription factor complex reveals DNA remodelling. 著者: Marios G Koliopoulos / Reyhan Muhammad / Theodoros I Roumeliotis / Fabienne Beuron / Jyoti S Choudhary / Claudio Alfieri / ![]() 要旨: Genes encoding the core cell cycle machinery are transcriptionally regulated by the MuvB family of protein complexes in a cell cycle-specific manner. Complexes of MuvB with the transcription factors ...Genes encoding the core cell cycle machinery are transcriptionally regulated by the MuvB family of protein complexes in a cell cycle-specific manner. Complexes of MuvB with the transcription factors B-MYB and FOXM1 activate mitotic genes during cell proliferation. The mechanisms of transcriptional regulation by these complexes are still poorly characterised. Here, we combine biochemical analysis and in vitro reconstitution, with structural analysis by cryo-electron microscopy and cross-linking mass spectrometry, to functionally examine these complexes. We find that the MuvB:B-MYB complex binds and remodels nucleosomes, thereby exposing nucleosomal DNA. This remodelling activity is supported by B-MYB which directly binds the remodelled DNA. Given the remodelling activity on the nucleosome, we propose that the MuvB:B-MYB complex functions as a pioneer transcription factor complex. In this work, we rationalise prior biochemical and cellular studies and provide a molecular framework of interactions on a protein complex that is key for cell cycle regulation. | ||||||
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 | ![]() | 138.2 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 99.4 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 | ![]() 14239MC 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 ( |
---|---|
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: 62035.660 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
---|---|
#2: タンパク質 | 分子量: 47709.527 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#3: タンパク質 | 分子量: 29375.240 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-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: MuvB complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
---|---|
分子量 | 値: 0.18 MDa / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: COPPER |
急速凍結 | 凍結剤: ETHANE |
-
電子顕微鏡撮影
顕微鏡 | モデル: TFS GLACIOS |
---|---|
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): 1600 nm / 最小 デフォーカス(公称値): 600 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
-
解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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: 26641 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
|