+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-5640 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | cryo-EM structure of CCT5 complex with 1mM ATP/AlFx (C8 symmetry) | |||||||||
マップデータ | C8-symmetry imposed 3D structure of CCT5 complex with 1mM ATP/AlFx | |||||||||
試料 |
| |||||||||
キーワード | TRiC / CCT / chaperonin / protein folding / cryo-electron microscopy | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex / binding of sperm to zona pellucida / positive regulation of telomerase RNA localization to Cajal body / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / Prefoldin mediated transfer of substrate to CCT/TriC / beta-tubulin binding ...positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex / binding of sperm to zona pellucida / positive regulation of telomerase RNA localization to Cajal body / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / Prefoldin mediated transfer of substrate to CCT/TriC / beta-tubulin binding / Association of TriC/CCT with target proteins during biosynthesis / chaperone-mediated protein folding / protein folding chaperone / positive regulation of telomere maintenance via telomerase / mRNA 3'-UTR binding / ATP-dependent protein folding chaperone / response to virus / mRNA 5'-UTR binding / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / G-protein beta-subunit binding / unfolded protein binding / protein folding / cell body / microtubule / protein stabilization / centrosome / nucleolus / ATP hydrolysis activity / extracellular exosome / ATP binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 22.0 Å | |||||||||
データ登録者 | Sergeeva OA / Chen B / Haase-Pettingell C / Ludtke SJ / Chiu W / King JA | |||||||||
引用 | ジャーナル: J Biol Chem / 年: 2013 タイトル: Human CCT4 and CCT5 chaperonin subunits expressed in Escherichia coli form biologically active homo-oligomers. 著者: Oksana A Sergeeva / Bo Chen / Cameron Haase-Pettingell / Steven J Ludtke / Wah Chiu / Jonathan A King / 要旨: Chaperonins are a family of chaperones that encapsulate their substrates and assist their folding in an ATP-dependent manner. The ubiquitous eukaryotic chaperonin, TCP-1 ring complex (TRiC), is a ...Chaperonins are a family of chaperones that encapsulate their substrates and assist their folding in an ATP-dependent manner. The ubiquitous eukaryotic chaperonin, TCP-1 ring complex (TRiC), is a hetero-oligomeric complex composed of two rings, each formed from eight different CCT (chaperonin containing TCP-1) subunits. Each CCT subunit may have distinct substrate recognition and ATP hydrolysis properties. We have expressed each human CCT subunit individually in Escherichia coli to investigate whether they form chaperonin-like double ring complexes. CCT4 and CCT5, but not the other six CCT subunits, formed high molecular weight complexes within the E. coli cells that sedimented about 20S in sucrose gradients. When CCT4 and CCT5 were purified, they were both organized as two back-to-back rings of eight subunits each, as seen by negative stain and cryo-electron microscopy. This morphology is consistent with that of the hetero-oligomeric double-ring TRiC purified from bovine testes and HeLa cells. Both CCT4 and CCT5 homo-oligomers hydrolyzed ATP at a rate similar to human TRiC and were active as assayed by luciferase refolding and human γD-crystallin aggregation suppression and refolding. Thus, both CCT4 and CCT5 homo-oligomers have the property of forming 8-fold double rings absent the other subunits, and these complexes carry out chaperonin reactions without other partner subunits. | |||||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_5640.map.gz | 9.9 MB | EMDBマップデータ形式 | |
---|---|---|---|---|
ヘッダ (付随情報) | emd-5640-v30.xml emd-5640.xml | 11.7 KB 11.7 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_5640.png | 93.9 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-5640 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-5640 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_5640_validation.pdf.gz | 78.5 KB | 表示 | EMDB検証レポート |
---|---|---|---|---|
文書・詳細版 | emd_5640_full_validation.pdf.gz | 77.7 KB | 表示 | |
XML形式データ | emd_5640_validation.xml.gz | 494 B | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5640 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5640 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
---|---|
「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_5640.map.gz / 形式: CCP4 / 大きさ: 11.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | C8-symmetry imposed 3D structure of CCT5 complex with 1mM ATP/AlFx | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.16 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
|
-添付データ
-試料の構成要素
-全体 : CCT5 Complex
全体 | 名称: CCT5 Complex |
---|---|
要素 |
|
-超分子 #1000: CCT5 Complex
超分子 | 名称: CCT5 Complex / タイプ: sample / ID: 1000 / 集合状態: hexadecamer / Number unique components: 1 |
---|---|
分子量 | 実験値: 1 MDa / 理論値: 960 KDa / 手法: size exclusion column (Superose 6 10/300 GL) |
-分子 #1: chaperonin containing TCP1, subunit 5 (epsilon)
分子 | 名称: chaperonin containing TCP1, subunit 5 (epsilon) / タイプ: protein_or_peptide / ID: 1 / Name.synonym: CCT5 / コピー数: 16 / 集合状態: Hexadecamer / 組換発現: Yes |
---|---|
由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: Human |
分子量 | 実験値: 1 MDa / 理論値: 960 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) / 組換株: BL21(DE3) RIL / 組換プラスミド: pET21b |
配列 | UniProtKB: T-complex protein 1 subunit epsilon GO: nucleolus, cytoplasm, centrosome, cytosol, chaperonin-containing T-complex InterPro: T-complex protein 1, epsilon subunit, Chaperone tailless complex polypeptide 1 (TCP-1), Chaperonin TCP-1, conserved site, Chaperonin Cpn60/GroEL/TCP-1 family |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 0.35 mg/mL |
---|---|
緩衝液 | pH: 7.4 詳細: 20 mM HEPES/KOH, pH 7.4, 200 mM NaCl, 1 mM DTT, 10 mM MgCl2, 5% glycerol, 5 mM Al(NO3)3, 30 mM NaF, 1 mM ATP |
グリッド | 詳細: plasma-cleaned R1.2/1.3 Quantifoil grid |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK III 手法: Front side blotting for 4 seconds twice before plunging |
-電子顕微鏡法
顕微鏡 | JEOL 2010F |
---|---|
温度 | 最低: 94.98 K / 最高: 95 K / 平均: 94.99 K |
アライメント法 | Legacy - 非点収差: Objective lens astigmatism was corrected at 250,000 times magnification |
特殊光学系 | エネルギーフィルター - 名称: Gatan in-column energy filter |
詳細 | MDS mode imaging was used. |
日付 | 2012年3月26日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: GENERIC GATAN (4k x 4k) 実像数: 160 / 平均電子線量: 20 e/Å2 / カメラ長: 120 |
電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 倍率(補正後): 71361 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 3.5 µm / 最小 デフォーカス(公称値): 1.5 µm / 倍率(公称値): 50000 |
試料ステージ | 試料ホルダー: This holder operates at -178 C (95K). / 試料ホルダーモデル: GATAN LIQUID NITROGEN |
-画像解析
詳細 | 6,307 particles (ATP-AlFx state) were boxed out semi-automatically using e2boxer.py. The later steps of 3D reconstruction were performed using EMAN1. |
---|---|
CTF補正 | 詳細: each frame |
最終 再構成 | アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 22.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: EMAN / 使用した粒子像数: 2974 |
最終 2次元分類 | クラス数: 67 |