+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 7bxt | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | The cryo-EM structure of CENP-A nucleosome in complex with CENP-C peptide and CENP-N N-terminal domain | ||||||||||||
![]() |
| ||||||||||||
![]() | CELL CYCLE/DNA / CENP-A nucleosome / CENP-C / CENP-N / complex / kinetochore / NUCLEAR PROTEIN / CELL CYCLE-DNA complex | ||||||||||||
機能・相同性 | ![]() kinetochore => GO:0000776 / Interleukin-7 signaling / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Chromatin modifying enzymes / RHO GTPases Activate Formins / Formation of the beta-catenin:TCF transactivating complex / PRC2 methylates histones and DNA / Oxidative Stress Induced Senescence / HDACs deacetylate histones / HATs acetylate histones ...kinetochore => GO:0000776 / Interleukin-7 signaling / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Chromatin modifying enzymes / RHO GTPases Activate Formins / Formation of the beta-catenin:TCF transactivating complex / PRC2 methylates histones and DNA / Oxidative Stress Induced Senescence / HDACs deacetylate histones / HATs acetylate histones / Transcriptional regulation by small RNAs / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / Assembly of the ORC complex at the origin of replication / RNA Polymerase I Promoter Opening / RNA Polymerase I Promoter Escape / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Estrogen-dependent gene expression / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Regulation of endogenous retroelements by KRAB-ZFP proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / Resolution of Sister Chromatid Cohesion / B-WICH complex positively regulates rRNA expression / EML4 and NUDC in mitotic spindle formation / Deposition of new CENPA-containing nucleosomes at the centromere / Separation of Sister Chromatids / Factors involved in megakaryocyte development and platelet production / spindle attachment to meiosis I kinetochore / CENP-A containing chromatin assembly / centromeric DNA binding / kinetochore assembly / protein localization to chromosome, centromeric region / attachment of mitotic spindle microtubules to kinetochore / condensed chromosome, centromeric region / detection of maltose stimulus / maltose transport complex / carbohydrate transport / establishment of mitotic spindle orientation / mitotic cytokinesis / chromosome, centromeric region / carbohydrate transmembrane transporter activity / maltose binding / maltose transport / maltodextrin transmembrane transport / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Inhibition of DNA recombination at telomere / Meiotic synapsis / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / ATP-binding cassette (ABC) transporter complex / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / innate immune response in mucosa / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / cell chemotaxis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / chromosome segregation / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / kinetochore / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / Metalloprotease DUBs / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / HCMV Early Events / antimicrobial humoral immune response mediated by antimicrobial peptide / structural constituent of chromatin / antibacterial humoral response / UCH proteinases 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() ![]() ![]() unidentified cloning vector (未定義) synthetic construct (人工物) | ||||||||||||
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: 4.2 Å | ||||||||||||
![]() | Ariyoshi, M. / Makino, F. / Fukagawa, T. | ||||||||||||
資金援助 | ![]()
| ||||||||||||
![]() | ![]() タイトル: Cryo-EM structure of the CENP-A nucleosome in complex with phosphorylated CENP-C. 著者: Mariko Ariyoshi / Fumiaki Makino / Reito Watanabe / Reiko Nakagawa / Takayuki Kato / Keiichi Namba / Yasuhiro Arimura / Risa Fujita / Hitoshi Kurumizaka / Ei-Ichi Okumura / Masatoshi Hara / Tatsuo Fukagawa / ![]() 要旨: The CENP-A nucleosome is a key structure for kinetochore assembly. Once the CENP-A nucleosome is established in the centromere, additional proteins recognize the CENP-A nucleosome to form a ...The CENP-A nucleosome is a key structure for kinetochore assembly. Once the CENP-A nucleosome is established in the centromere, additional proteins recognize the CENP-A nucleosome to form a kinetochore. CENP-C and CENP-N are CENP-A binding proteins. We previously demonstrated that vertebrate CENP-C binding to the CENP-A nucleosome is regulated by CDK1-mediated CENP-C phosphorylation. However, it is still unknown how the phosphorylation of CENP-C regulates its binding to CENP-A. It is also not completely understood how and whether CENP-C and CENP-N act together on the CENP-A nucleosome. Here, using cryo-electron microscopy (cryo-EM) in combination with biochemical approaches, we reveal a stable CENP-A nucleosome-binding mode of CENP-C through unique regions. The chicken CENP-C structure bound to the CENP-A nucleosome is stabilized by an intramolecular link through the phosphorylated CENP-C residue. The stable CENP-A-CENP-C complex excludes CENP-N from the CENP-A nucleosome. These findings provide mechanistic insights into the dynamic kinetochore assembly regulated by CDK1-mediated CENP-C phosphorylation. | ||||||||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
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 | ![]() | 383 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 284.1 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 | ![]() 30237MC ![]() 7by0C 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 | |
電子顕微鏡画像生データ | ![]() Data size: 1.3 TB Data #1: CENP-A nucleosome in complex with CENP-C motif (655-675) and CENP-N N-terminal domain (1-211) [micrographs - multiframe]) |
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
-タンパク質 , 5種, 10分子 AEBFCGDHMN
#1: タンパク質 | 分子量: 16372.217 Da / 分子数: 2 / 由来タイプ: 組換発現 詳細: chimeric protein, chicken histone H3 (aa 1-64)-chicken CENP-A (aa 52-131) 由来: (組換発現) ![]() ![]() ![]() ![]() #2: タンパク質 | 分子量: 11676.703 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: タンパク質 | 分子量: 14447.825 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質 | 分子量: 14233.518 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #8: タンパク質 | 分子量: 71519.625 Da / 分子数: 2 / 由来タイプ: 組換発現 詳細: The fusion protein of N-terminal MBP, N-terminal domain of chicken CENP-N and C-terminal histidine tags 由来: (組換発現) unidentified cloning vector (未定義), (組換発現) ![]() ![]() 遺伝子: CENPN / 詳細 (発現宿主): pMAL_c2X / 発現宿主: ![]() ![]() |
---|
-DNA鎖 , 2種, 2分子 IJ
#5: DNA鎖 | 分子量: 44529.398 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
---|---|
#6: DNA鎖 | 分子量: 44982.648 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
-タンパク質・ペプチド , 1種, 2分子 KL
#7: タンパク質・ペプチド | 分子量: 4932.840 Da / 分子数: 2 / 由来タイプ: 合成 / 由来: (合成) ![]() ![]() |
---|
-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 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
分子量 | 値: 0.33 MDa / 実験値: NO | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
由来(天然) |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
緩衝液成分 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
試料 | 濃度: 1.3 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
試料支持 | 詳細: Both side / グリッドの材料: MOLYBDENUM / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R0.6/1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-
電子顕微鏡撮影
顕微鏡 | モデル: JEOL CRYO ARM 200 |
---|---|
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 50000 X / 倍率(補正後): 45454 X / 最大 デフォーカス(公称値): -3500 nm / 最小 デフォーカス(公称値): -1000 nm / Calibrated defocus min: -500 nm / 最大 デフォーカス(補正後): -7000 nm / Cs: 1.4 mm / C2レンズ絞り径: 150 µm / アライメント法: BASIC |
試料ホルダ | 凍結剤: NITROGEN / 試料ホルダーモデル: JEOL CRYOSPECPORTER / 最高温度: 80 K / 最低温度: 80 K |
撮影 | 平均露光時間: 10 sec. / 電子線照射量: 1.2 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 5 / 実像数: 5346 |
画像スキャン | サンプリングサイズ: 5 µm / 横: 3838 / 縦: 3710 / 動画フレーム数/画像: 50 / 利用したフレーム数/画像: 1-50 |
-
解析
ソフトウェア |
| ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
EMソフトウェア |
| ||||||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 421635 | ||||||||||||||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 118294 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||
精密化 | 交差検証法: NONE |