+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 1ecl | ||||||
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タイトル | AMINO TERMINAL 67KDA DOMAIN OF ESCHERICHIA COLI DNA TOPOISOMERASE I (RESIDUES 2-590 OF MATURE PROTEIN) CLONING ARTIFACT ADDS TWO RESIDUES TO THE AMINO-TERMINUS WHICH WERE NOT OBSERVED IN THE EXPERIMENTAL ELECTRON DENSITY (GLY-2, SER-1). | ||||||
要素 | ESCHERICHIA COLI TOPOISOMERASE I | ||||||
キーワード | TOPOISOMERASE / BACTERIAL TYPE I / DNA CLEAVAGE / STRAND PASSAGE | ||||||
機能・相同性 | 機能・相同性情報 DNA topoisomerase activity / DNA topoisomerase / DNA topoisomerase type I (single strand cut, ATP-independent) activity / DNA topological change / chromosome / DNA binding / metal ion binding / cytosol 類似検索 - 分子機能 | ||||||
生物種 | Escherichia coli (大腸菌) | ||||||
手法 | X線回折 / シンクロトロン / 解像度: 1.9 Å | ||||||
データ登録者 | Lima, C.D. / Wang, J.C. / Mondragon, A. | ||||||
引用 | ジャーナル: Nature / 年: 1994 タイトル: Three-dimensional structure of the 67K N-terminal fragment of E. coli DNA topoisomerase I. 著者: Lima, C.D. / Wang, J.C. / Mondragon, A. #1: ジャーナル: J.Mol.Biol. / 年: 1993 タイトル: Crystallization of a 67 kDa Fragment of Escherichia Coli DNA Topoisomerase I 著者: Lima, C.D. / Wang, J.C. / Mondragon, A. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 1ecl.cif.gz | 131.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb1ecl.ent.gz | 102.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 1ecl.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 1ecl_validation.pdf.gz | 419.7 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 1ecl_full_validation.pdf.gz | 435.4 KB | 表示 | |
XML形式データ | 1ecl_validation.xml.gz | 27.9 KB | 表示 | |
CIF形式データ | 1ecl_validation.cif.gz | 42.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ec/1ecl ftp://data.pdbj.org/pub/pdb/validation_reports/ec/1ecl | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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単位格子 |
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詳細 | THE ASYMMETRIC UNIT CONTAINS A SINGLE MOLECULE. |
-要素
#1: タンパク質 | 分子量: 67326.305 Da / 分子数: 1 変異: GLY SER INSERTION AT N-TERMINUS, INSERTION OF STOP CODON AT 598; ENGINEERED 由来タイプ: 組換発現 / 由来: (組換発現) Escherichia coli (大腸菌) / 遺伝子: TOPA / プラスミド: PGEX-2T / 遺伝子 (発現宿主): TOPA / 参照: UniProt: P06612, EC: 5.99.1.2 |
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#2: 水 | ChemComp-HOH / |
構成要素の詳細 | MOLECULE: AMINO-TERMINAL 67KDA DOMAIN OF ESCHERICHIA COLI TOPOISOMERASE I. STRAND PASSAGE DOMAIN OF ...MOLECULE: AMINO-TERMINAL 67KDA DOMAIN OF ESCHERICHI |
配列の詳細 | RESIDUE NUMBERING IS FOR THE MATURE PROTEIN. |
由来についての詳細 | MOLECULE_NAME: AMINO-TERMINAL 67KDA DOMAIN OF ESCHERICHIA COLI TOPOISOMERASE I. ARTIFICIAL STOP ...MOLECULE_NAME: AMINO-TERMINAL 67KDA DOMAIN OF ESCHERICHI |
-実験情報
-実験
実験 | 手法: X線回折 |
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-試料調製
結晶 | マシュー密度: 2.54 Å3/Da / 溶媒含有率: 51.58 % 解説: INITIAL PHASING WAS OBTAINED BY MULTIPLE ISOMORPHOUS PHASING TECHNIQUES USING A XENTRONICS/SIEMENS DETECTOR MOUNTED ON A RIGAKU RU200 GENERATOR (.1MM FOCUSING CUP). THE X-RAY BEAM WAS FOCUSED ...解説: INITIAL PHASING WAS OBTAINED BY MULTIPLE ISOMORPHOUS PHASING TECHNIQUES USING A XENTRONICS/SIEMENS DETECTOR MOUNTED ON A RIGAKU RU200 GENERATOR (.1MM FOCUSING CUP). THE X-RAY BEAM WAS FOCUSED WITH FRANK'S MIRRORS ON THE CRYSTAL POSITION. THE CRYSTALS USED IN MIR PHASING WERE FROZEN AT 100K FOR DATA COLLECTION. MIR PHASES WERE OBTAINED TO 3.0 ANGSTROMS AND A MODEL WAS SUBSEQUENTLY FIT INTO A SOLVENT FLATTED ELECTRON DENSITY MAP. THIS MODEL WAS TRANSFERRED TO A 2.11 ANGSTROM DATA SET COLLECTED AT 1.08 ANGSTROM WAVELENGTH AT THE STANFORD SYNCHROTRON RADIATION LABORATORY ON AN IP MAR SCANNER. THE MODEL WAS REFINED TO 2.2 ANGSTROMS WITH THIS DATA SET AND REPORTED IN LIMA (1994). THE MODEL WAS SUBSEQUENTLY TRANSFERRED TO A 1.7 ANGSTROM DATA SET COLLECTED AT 0.9144 ANGSTROM WAVELENGTH AT THE CORNELL HIGH ENERGY SYNCHROTRON SOURCE. THE DATA WAS COLLECTED ON THE PRINCETON CCD DETECTOR. | ||||||||||||||||||||||||||||||
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結晶化 | *PLUS 温度: 23 ℃ / pH: 8 / 手法: 蒸気拡散法, ハンギングドロップ法 / 詳細: Lima, C.D., (1993) J.Mol.Biol., 232, 1213. | ||||||||||||||||||||||||||||||
溶液の組成 | *PLUS
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-データ収集
放射光源 | 由来: シンクロトロン / タイプ: CHESS / 波長: 0.9144 Å |
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検出器 | タイプ: PRINCETON 2K / 検出器: CCD / 日付: 1994年10月23日 |
放射 | 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.9144 Å / 相対比: 1 |
反射 | 最高解像度: 1.7 Å / Num. obs: 56798 / % possible obs: 80 % / Observed criterion σ(I): 4 / 冗長度: 2.9 % / Rmerge(I) obs: 0.059 |
反射 | *PLUS 最高解像度: 1.604 Å / 最低解像度: 46.127 Å / Rmerge(I) obs: 0.059 |
-解析
ソフトウェア |
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精密化 | 解像度: 1.9→5 Å / σ(F): 2 詳細: INITIAL PHASING WAS OBTAINED BY MULTIPLE ISOMORPHOUS PHASING TECHNIQUES USING A XENTRONICS/SIEMENS DETECTOR MOUNTED ON A RIGAKU RU200 GENERATOR (.1MM FOCUSING CUP). THE X-RAY BEAM WAS FOCUSED ...詳細: INITIAL PHASING WAS OBTAINED BY MULTIPLE ISOMORPHOUS PHASING TECHNIQUES USING A XENTRONICS/SIEMENS DETECTOR MOUNTED ON A RIGAKU RU200 GENERATOR (.1MM FOCUSING CUP). THE X-RAY BEAM WAS FOCUSED WITH FRANK'S MIRRORS ON THE CRYSTAL POSITION. THE CRYSTALS USED IN MIR PHASING WERE FROZEN AT 100K FOR DATA COLLECTION. MIR PHASES WERE OBTAINED TO 3.0 ANGSTROMS AND A MODEL WAS SUBSEQUENTLY FIT INTO A SOLVENT FLATTED ELECTRON DENSITY MAP. THIS MODEL WAS TRANSFERRED TO A 2.11 ANGSTROM DATA SET COLLECTED AT 1.08 ANGSTROM WAVELENGTH AT THE STANFORD SYNCHROTRON RADIATION LABORATORY ON AN IP MAR SCANNER. THE MODEL WAS REFINED TO 2.2 ANGSTROMS WITH THIS DATA SET AND REPORTED IN LIMA (1994). THE MODEL WAS SUBSEQUENTLY TRANSFERRED TO A 1.7 ANGSTROM DATA SET COLLECTED AT 0.9144 ANGSTROM WAVELENGTH AT THE CORNELL HIGH ENERGY SYNCHROTRON SOURCE. THE DATA WAS COLLECTED ON THE PRINCETON CCD DETECTOR. THE MODEL WAS REFINED TO 1.9 ANGSTROM WITH THIS DATA. THE COORDINATES THAT FOLLOW REPRESENT THIS REFINEMENT. A TOTAL OF 24 SIMULATED ANNEALING OMIT MAPS WERE GENERATED TO COVER THE ENTIRE STRUCTURE AT 1.9 ANGSTROM RESOLUTION. ALL THE RESIDUES INCLUDED IN THE MODEL WERE PRESENT IN THESE SIMULATED ANNEALING OMIT MAPS. RESIDUE ILE 34 IS THE ONLY OUTLIER WITH REGARDS TO A RAMACHANDRAN PLOT. IT WAS REMOVED DURING REFINEMENT AND ONLY REINSERTED AND REFINED AFTER DENSITY WAS OBSERVED FOR THE SIDE CHAIN ATOMS IN A SIMULATED ANNEALING OMIT MAP FOR THAT REGION.
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原子変位パラメータ | Biso mean: 30.68 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 1.9→5 Å
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拘束条件 |
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