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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 2cgt | ||||||
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タイトル | GROEL-ADP-gp31 COMPLEX | ||||||
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![]() | CHAPERONE / CHAPERONIN / CELL CYCLE / CELL DIVISION / CAPSID ASSEMBLY / EARLY PROTEIN | ||||||
機能・相同性 | ![]() GroEL-GroES complex / viral capsid assembly / chaperonin ATPase / mitochondrial unfolded protein response / protein import into mitochondrial intermembrane space / virion assembly / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / protein folding chaperone / isomerase activity ...GroEL-GroES complex / viral capsid assembly / chaperonin ATPase / mitochondrial unfolded protein response / protein import into mitochondrial intermembrane space / virion assembly / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / protein folding chaperone / isomerase activity / ATP-dependent protein folding chaperone / response to radiation / positive regulation of interleukin-6 production / positive regulation of type II interferon production / unfolded protein binding / protein folding / positive regulation of T cell activation / protein-folding chaperone binding / response to heat / protein refolding / magnesium ion binding / ATP hydrolysis activity / ATP binding / identical protein binding / membrane / 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: 8.2 Å | ||||||
![]() | Clare, D.K. / Bakkes, P.J. / van Heerikhuizen, H. / van der Vies, S.M. / Saibil, H.R. | ||||||
![]() | ![]() タイトル: An expanded protein folding cage in the GroEL-gp31 complex. 著者: Daniel K Clare / Patrick J Bakkes / Harm van Heerikhuizen / Saskia M van der Vies / Helen R Saibil / ![]() 要旨: Bacteriophage T4 produces a GroES analogue, gp31, which cooperates with the Escherichia coli GroEL to fold its major coat protein gp23. We have used cryo-electron microscopy and image processing to ...Bacteriophage T4 produces a GroES analogue, gp31, which cooperates with the Escherichia coli GroEL to fold its major coat protein gp23. We have used cryo-electron microscopy and image processing to obtain three-dimensional structures of the E.coli chaperonin GroEL complexed with gp31, in the presence of both ATP and ADP. The GroEL-gp31-ADP map has a resolution of 8.2 A, which allows accurate fitting of the GroEL and gp31 crystal structures. Comparison of this fitted structure with that of the GroEL-GroES-ADP structure previously determined by cryo-electron microscopy shows that the folding cage is expanded. The enlarged volume for folding is consistent with the size of the bacteriophage coat protein gp23, which is the major substrate of GroEL-gp31 chaperonin complex. At 56 kDa, gp23 is close to the maximum size limit of a polypeptide that is thought to fit inside the GroEL-GroES folding cage. | ||||||
履歴 |
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Remark 700 | SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN ... SHEET THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED. |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 1.3 MB | 表示 | ![]() |
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PDB形式 | ![]() | 1.1 MB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 223.6 KB | 表示 | |
CIF形式データ | ![]() | 328.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 57260.504 Da / 分子数: 14 / 由来タイプ: 組換発現 詳細: A TETRADECAMER ARRANGED AS TWO BACK-TO-BACK HEPTAMERS 由来: (組換発現) ![]() ![]() ![]() ![]() #2: タンパク質 | 分子量: 12091.999 Da / 分子数: 7 / 由来タイプ: 組換発現 / 詳細: HEPTAMER / 由来: (組換発現) ![]() ![]() ![]() 配列の詳細 | RESIDUES 23-46 HAVE BEEN REMOVED FROM THE GP31 STRUCTURE AS THEY WERE IN A DISTORTED CONFORMATION ...RESIDUES 23-46 HAVE BEEN REMOVED FROM THE GP31 STRUCTURE AS THEY WERE IN A DISTORTED CONFORMATI | |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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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 |
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試料調製
構成要素 | 名称: GROEL-GP31-ADP / タイプ: COMPLEX |
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緩衝液 | 名称: 20MM TRIS-HCL, 10MM MGCL, 10MM KCL / pH: 7.4 / 詳細: 20MM TRIS-HCL, 10MM MGCL, 10MM KCL |
試料 | 濃度: 1 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: HOLEY CARBON |
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE 詳細: GRIDS WERE BLOTED FOR 2-3 SECONDS AND THEN LEFT TO EQUILIBRATE FOR 2-3 SECONDS AND THEN PLUNGED INTO LIQUID ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TECNAI F20 / 日付: 2004年9月28日 |
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): 50000 X / 最大 デフォーカス(公称値): 3300 nm / 最小 デフォーカス(公称値): 1300 nm / Cs: 2 mm |
試料ホルダ | 温度: 100 K |
撮影 | 電子線照射量: 15 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM |
画像スキャン | デジタル画像の数: 28 |
放射波長 | 相対比: 1 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: FULL CORRECTION ON 2D CLASS AVERAGES | |||||||||||||||||||||
対称性 | 点対称性: D7 (2回x7回 2面回転対称) | |||||||||||||||||||||
3次元再構成 | 手法: PROJECTION MATCHING / 解像度: 8.2 Å / 粒子像の数: 10300 / ピクセルサイズ(公称値): 1.4 Å / ピクセルサイズ(実測値): 1.4 Å 詳細: THE 3 DOMAINS OF TWO GROEL SUBUNITS AND A SINGLE GP31 SUBUNIT WERE DOCKED AS RIGID BODIES INTO THE DENSITY MAP 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 / Target criteria: Cross-correlation coefficient / 詳細: METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY | |||||||||||||||||||||
原子モデル構築 |
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精密化 | 最高解像度: 8.2 Å | |||||||||||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 8.2 Å
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