+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-1014 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Combined EM/X-ray imaging yields a quasi-atomic model of the adenovirus-related bacteriophage PRD1 and shows key capsid and membrane interactions. | |||||||||
マップデータ | This is the structure of the P3 shell of PRD1 produced by treatment of the sus1 mutant with SDS. | |||||||||
試料 |
| |||||||||
機能・相同性 | Bacteriophage PRD1, P3 / Bacteriophage PRD1, P3, N-terminal / P3 major capsid protein / Group II dsDNA virus coat/capsid protein / Viral coat protein subunit / viral capsid / Major capsid protein P3 機能・相同性情報 | |||||||||
生物種 | Enterobacteria phage PRD1 (ファージ) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 12.0 Å | |||||||||
データ登録者 | San Martin C / Burnett RM / de Haas F / Heinkel R / Rutten T / Fuller SD / Butcher SJ / Bamford DH | |||||||||
引用 | ジャーナル: Structure / 年: 2001 タイトル: Combined EM/X-ray imaging yields a quasi-atomic model of the adenovirus-related bacteriophage PRD1 and shows key capsid and membrane interactions. 著者: C S Martín / R M Burnett / F de Haas / R Heinkel / T Rutten / S D Fuller / S J Butcher / D H Bamford / 要旨: BACKGROUND: The dsDNA bacteriophage PRD1 has a membrane inside its icosahedral capsid. While its large size (66 MDa) hinders the study of the complete virion at atomic resolution, a 1.65-A ...BACKGROUND: The dsDNA bacteriophage PRD1 has a membrane inside its icosahedral capsid. While its large size (66 MDa) hinders the study of the complete virion at atomic resolution, a 1.65-A crystallographic structure of its major coat protein, P3, is available. Cryo-electron microscopy (cryo-EM) and three-dimensional reconstruction have shown the capsid at 20-28 A resolution. Striking architectural similarities between PRD1 and the mammalian adenovirus indicate a common ancestor. RESULTS: The P3 atomic structure has been fitted into improved cryo-EM reconstructions for three types of PRD1 particles: the wild-type virion, a packaging mutant without DNA, and a P3-shell lacking ...RESULTS: The P3 atomic structure has been fitted into improved cryo-EM reconstructions for three types of PRD1 particles: the wild-type virion, a packaging mutant without DNA, and a P3-shell lacking the membrane and the vertices. Establishing the absolute EM scale was crucial for an accurate match. The resulting "quasi-atomic" models of the capsid define the residues involved in the major P3 interactions, within the quasi-equivalent interfaces and with the membrane, and show how these are altered upon DNA packaging. CONCLUSIONS: The new cryo-EM reconstructions reveal the structure of the PRD1 vertex and the concentric packing of DNA. The capsid is essentially unchanged upon DNA packaging, with alterations ...CONCLUSIONS: The new cryo-EM reconstructions reveal the structure of the PRD1 vertex and the concentric packing of DNA. The capsid is essentially unchanged upon DNA packaging, with alterations limited to those P3 residues involved in membrane contacts. These are restricted to a few of the N termini along the icosahedral edges in the empty particle; DNA packaging leads to a 4-fold increase in the number of contacts, including almost all copies of the N terminus and the loop between the two beta barrels. Analysis of the P3 residues in each quasi-equivalent interface suggests two sites for minor proteins in the capsid edges, analogous to those in adenovirus. | |||||||||
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_1014.map.gz | 31.7 MB | EMDBマップデータ形式 | |
---|---|---|---|---|
ヘッダ (付随情報) | emd-1014-v30.xml emd-1014.xml | 20.2 KB 20.2 KB | 表示 表示 | EMDBヘッダ |
画像 | 1014.gif | 40 KB | ||
その他 | emd_1014_additional_1.map.gz emd_1014_additional_2.map.gz emd_1014_additional_3.map.gz | 189.4 KB 189.1 KB 189 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-1014 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-1014 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_1014_validation.pdf.gz | 308.8 KB | 表示 | EMDB検証レポート |
---|---|---|---|---|
文書・詳細版 | emd_1014_full_validation.pdf.gz | 308 KB | 表示 | |
XML形式データ | emd_1014_validation.xml.gz | 6.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1014 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1014 | 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_1014.map.gz / 形式: CCP4 / 大きさ: 62.5 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | This is the structure of the P3 shell of PRD1 produced by treatment of the sus1 mutant with SDS. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 3.39 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
-添付マップデータ: emd 1014 additional 1.map
ファイル | emd_1014_additional_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-添付マップデータ: emd 1014 additional 2.map
ファイル | emd_1014_additional_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-添付マップデータ: emd 1014 additional 3.map
ファイル | emd_1014_additional_3.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-試料の構成要素
-全体 : Bacteriophage PRD1 P3 shell
全体 | 名称: Bacteriophage PRD1 P3 shell |
---|---|
要素 |
|
-超分子 #1000: Bacteriophage PRD1 P3 shell
超分子 | 名称: Bacteriophage PRD1 P3 shell / タイプ: sample / ID: 1000 詳細: The sample is 180 trimers of the P3 protein(43.1kD). produced by treatment of the sus1 mutant with SDS to remove the non-P3 proteins and the pentonal P3 trimers.Recent evidence indicates that ...詳細: The sample is 180 trimers of the P3 protein(43.1kD). produced by treatment of the sus1 mutant with SDS to remove the non-P3 proteins and the pentonal P3 trimers.Recent evidence indicates that some protein P30 is associated with the shell 集合状態: A pseudo T=25 assembly / Number unique components: 1 |
---|---|
分子量 | 理論値: 23.274 MDa / 手法: theoretical 180*3*43.1 kD |
-超分子 #1: Enterobacteria phage PRD1
超分子 | 名称: Enterobacteria phage PRD1 / タイプ: virus / ID: 1 / Name.synonym: bacteriophage PRD1 / 詳細: a T=25 virion. PRD1 P3 shell / NCBI-ID: 10658 / 生物種: Enterobacteria phage PRD1 / ウイルスタイプ: VIRION / ウイルス・単離状態: STRAIN / ウイルス・エンベロープ: No / ウイルス・中空状態: Yes / Syn species name: bacteriophage PRD1 |
---|---|
宿主 | 生物種: Salmonella enterica (サルモネラ菌) / 別称: BACTERIA(EUBACTERIA) |
ウイルス殻 | Shell ID: 1 / 名称: P3 (contains some P30) / 直径: 70 Å / T番号(三角分割数): 25 |
-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 | 1 mg/mL |
---|---|
緩衝液 | pH: 7.2 / 詳細: 20 mM Tris HCl |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 60 % / チャンバー内温度: 23 K / 装置: HOMEMADE PLUNGER 詳細: Vitrification instrument: EMBL plunger. vitrification carried out at 23 degrees at ambient humidity 手法: Blot for 2 s before plunging into ethane slush |
-電子顕微鏡法
顕微鏡 | FEI/PHILIPS CM200FEG/ST |
---|---|
温度 | 平均: 105 K |
撮影 | カテゴリ: FILM / フィルム・検出器のモデル: KODAK SO-163 FILM / デジタル化 - スキャナー: ZEISS SCAI / デジタル化 - サンプリング間隔: 7.0 µm / 実像数: 5 / 平均電子線量: 6 e/Å2 / カメラ長: 44 詳細: images were scanned at 7 micron steps size and then averaged to give a final size of 14 microns Od range: 1 / ビット/ピクセル: 8 |
電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2 mm / 最大 デフォーカス(公称値): 4.1 µm / 最小 デフォーカス(公称値): 1.3 µm / 倍率(公称値): 36000 |
試料ステージ | 試料ホルダー: eucentric / 試料ホルダーモデル: GATAN LIQUID NITROGEN |
-画像解析
詳細 | The particles were purified by rate-zonal centrifugation and ion-exchange chromatography Walin,Tuma,Thomas and Bamford Virology (1994) 201:1-7 and then SDS treated to leave the shell. |
---|---|
CTF補正 | 詳細: normalized sum of ctf multiplied images |
最終 再構成 | 想定した対称性 - 点群: I (正20面体型対称) / アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 12.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: EMBL-ICOS, MRC 詳細: final maps were calculated by making a normalized sum of seperate ctf multiplied maps as Baker, T. S., Olson, N. H., and Fuller, S. D. (1999). Adding the third dimension to virus life cycles: ...詳細: final maps were calculated by making a normalized sum of seperate ctf multiplied maps as Baker, T. S., Olson, N. H., and Fuller, S. D. (1999). Adding the third dimension to virus life cycles: Three-Dimensional Reconstruction of Icosahedral Viruses from Cryo-Electron Micrographs. Microbiology and Molecular Biology Reviews 63, 862-922. Butcher, S. J., Bamford, D. H., and Fuller, S. D. (1995). DNA packaging orders the membrane of bacteriophage PRD1. Embo J 14, 6078-6086. Ferlenghi, I., Gowen, B., de Haas, F., Mancini, E. J., Garoff, H., Sjoberg, M., and Fuller, S. D. (1998). The first step: activation of the Semliki Forest virus spike protein precursor causes a localized conformational change in the trimeric spike. J Mol Biol 283, 71-81. Fuller, S. D., Berriman, J. A., Butcher, S. J., and Gowen, B. E. (1995). Low pH induces swiveling of the glycoprotein heterodimers in the Semliki Forest virus spike complex. Cell 81, 715-725. Fuller, S. D., Butcher, S. J., Cheng, R. H., and Baker, T. S. (1996). Three-dimensional reconstruction of icosahedral particles--the uncommon line. J Struct Biol 116, 48-55. Mancini, E. J., Clarke, M., Gowen, B., Rutten, T., and Fuller, S. D. (2000). Cryo-electron microscopy reveals the functional organization of an enveloped virus, Semliki Forest virus. Molecular Cell 5, 255-266. Mancini, E. J., de Haas, F., and Fuller, S. D. (1997). High-resolution icosahedral reconstruction: fulfilling the promise of cryo-electron microscopy. Structure 5, 741-750. San Martin, C., Burnett, R. M., de Haas, F., Heinkel, R., Rutten, T., Fuller, S. D., Butcher, S. J., and Bamford, D. H. (2001). Combined EM/X-ray imaging yields a quasi-atomic model of the adenovirus-related bacteriophage PRD1 and shows key capsid and membrane interactions. Structure (Camb) 9, 917-930. San Martin, C., Huiskonen, J. T., Bamford, J. K., Butcher, S. J., Fuller, S. D., Bamford, D. H., and Burnett, R. M. (2002). Minor proteins, mobile arms and membrane-capsid interactions in the bacteriophage PRD1 capsid. Nat Struct Biol 9, 756-763. Sheehan, B., Fuller, S.D., Pique, M. E., and Yeager, M. (1996). AVS software for visualization in molecular microscopy. J Struct Biol 116, 99-106. 使用した粒子像数: 471 |
最終 角度割当 | 詳細: range giving inverse eigenvalues for inversion of less than .01 in BG |
-原子モデル構築 1
初期モデル | PDB ID: Chain - #0 - Chain ID: A / Chain - #1 - Chain ID: B / Chain - #2 - Chain ID: C / Chain - #3 - Chain ID: D / Chain - #4 - Chain ID: E / Chain - #5 - Chain ID: F / Chain - #6 - Chain ID: G / Chain - #7 - Chain ID: H / Chain - #8 - Chain ID: I |
---|---|
ソフトウェア | 名称: X-plor, emfit (M. Rossmann Cheng, R., Kuhn, R., Olson, N., Rossmann, M., and Baker, T. (1995). Nucleocapsid and glycoprotein organization in an enveloped virus. Cell 80, 621-630.) |
詳細 | Protocol: rigid body refinement. The amplitude and distance scales were determined by comparison with an initial quasi atomic model |
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT / 温度因子: 150 当てはまり具合の基準: minimizing R factor (final 47.7%) |
得られたモデル | PDB-1hb5: PDB-1hb9: |