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基本情報
登録情報 | データベース: PDB / ID: 1j6p | ||||||
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タイトル | Crystal structure of Metal-dependent hydrolase of cytosinedemaniase/chlorohydrolase family (TM0936) from Thermotoga maritima at 1.9 A resolution | ||||||
![]() | METAL-DEPENDENT HYDROLASE OF CYTOSINEDEMANIASE/CHLOROHYDROLASE FAMILY | ||||||
![]() | HYDROLASE / STRUCTURAL GENOMICS / TM0936 / JCSG / METAL-DEPENDENT HYDROLASE OF CYTOSINEDEMANIASE/CHLOROHYDROLASE FAMILY / PSI / Protein Structure Initiative / Joint Center for Structural Genomics | ||||||
機能・相同性 | ![]() S-adenosylhomocysteine deaminase / S-adenosylhomocysteine deaminase activity / S-methyl-5'-thioadenosine deaminase / 5'-methylthioadenosine deaminase activity / metal ion binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Joint Center for Structural Genomics (JCSG) | ||||||
![]() | ![]() タイトル: Crystal structure of Metal-dependent hydrolase of cytosinedemaniase/chlorohydrolase family (TM0936) from Thermotoga maritima at 1.9 A resolution 著者: Joint Center for Structural Genomics (JCSG) | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 101.7 KB | 表示 | ![]() |
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-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-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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単位格子 |
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要素
#1: タンパク質 | 分子量: 48036.289 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: TM0936 / 発現宿主: ![]() ![]() |
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#2: 化合物 | ChemComp-NI / |
#3: 水 | ChemComp-HOH / |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 3.16 Å3/Da / 溶媒含有率: 61.1 % |
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結晶化 | 温度: 293 K / pH: 9.5 詳細: 10 % PEG 8000, 0.2 M NaCl, 0.1 M CHES pH 9.5, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 9.50 |
-データ収集
回折 | 平均測定温度: 100 K | ||||||||||||
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放射光源 | 由来: ![]() ![]() ![]() | ||||||||||||
検出器 | タイプ: ADSC QUANTUM 315 / 検出器: CCD / 日付: 2002年4月28日 | ||||||||||||
放射 | モノクロメーター: DOUBLE CRYSTAL MONOCHROMATOR / プロトコル: MAD / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray | ||||||||||||
放射波長 |
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反射 | 解像度: 1.91→46.613 Å / Num. obs: 47228 / % possible obs: 99.2 % / 冗長度: 3.8 % / Biso Wilson estimate: 31.75 Å2 / Rsym value: 0.082 / Net I/σ(I): 13.3 | ||||||||||||
反射 シェル | 解像度: 2.25→2.31 Å / 冗長度: 3.9 % / Mean I/σ(I) obs: 3.8 / Rsym value: 0.356 / % possible all: 99.7 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 詳細: THERE IS A SIGNIFICANT PIECE OF DENSITY THAT HAS NOT BEEN ACCOUNTED FOR IN THE MODEL THAT IS LOCATED IN THE PUTATIVE ACTIVE SITE. IT IS "SANDWICHED" BETWEEN HIS 57 AND MSE 60. IT IS ALSO ...詳細: THERE IS A SIGNIFICANT PIECE OF DENSITY THAT HAS NOT BEEN ACCOUNTED FOR IN THE MODEL THAT IS LOCATED IN THE PUTATIVE ACTIVE SITE. IT IS "SANDWICHED" BETWEEN HIS 57 AND MSE 60. IT IS ALSO WITHIN INTER-ACTION DISTANCE OF A WATER (HOH 14) THAT IS COORDINATED TO THE ACTIVE SITE METAL ION. IT IS NOT YET POSSIBLE TO ASSIGN THE IDENTITY OF THIS/THESE MOLECULES AS THE STRUCTURE IS OF A PROTEIN OF UNKNOWN FUNCTION. FURTHER BIOCHEMICAL CHARACTERIZATION OF TM0936 MAY AID IN ELUCIDATING THE NATURE OF THIS DENSITY. THE MODEL SEQUENCE MATCHES THE DATABASE SEQUENCE WITH THE FOLLOWING EXCEPTIONS: RESIDUES -1 AND 0 ARE HIS 5 AND 6 OF THE 6-HIS PURIFICATION TAG. THERE IS NO DENSITY FOR SER406 AND THIS DOES NOT APPEAR IN THE MODEL. PROCHECK IDENTIFIES 3 RESIDUES IN DISFAVORED CONFORMATIONS. HIS 228 (DISALLOWED REGION), ASP 279 AND ASN 285 (GENEROUSLY ALLOWED REGION). HIS 228 AND ASP 279 COORDINATE THE PUTATIVE ACTIVE SITE METAL ION. THE BINDING OF THE ACTIVE SITE METAL ION APPEARS TO INDUCE THESE OTHERWISE UNFAVORABLE GEOMETRIES. ASN 285 IS ON THE PROTEIN SURFACE AT A CRYSTALLOGRAPHIC INTERFACE. PROCHECK ADDITIONALLY IDENTIFIES 1 CIS-PEPTIDE RESIDUE PRO 352 WHICH DOES NOT APPEAR TO BE INVOLVED IN THE ACTIVE SITE. A METAL ION IDENTIFIED AS NICKEL BY FLUORESCENCE SCAN IS COORDINATED IN THE PUTATIVE ACTIVE SITE. AS WITH THE UNIDENTIFIED DENSITY PREVIOUSLY NOTED, IT IS NOT POSSIBLE TO DETERMINE IF THE NICKEL ION IS AN ARTIFACT OF NICKEL-CHELATING PURIFICATION OF TM0936 OR THE NATIVE METAL REQUIRED FOR ACTIVITY AS TM0936 IS A PROTEIN OF UNKNOWN FUNCTION. FURTHER BIOCHEMICAL CHARACTERIZATION OF TM0936 MAY AID IN ELUCIDATING THE NATURE OF THIS METAL ION.
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溶媒の処理 | 溶媒モデル: BULK SOLVENT CORRECTION / Bsol: 53.8 Å2 / ksol: 0.41 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 24.1 Å2
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Refine analyze | Luzzati coordinate error obs: 0.74 Å / Luzzati d res low obs: 6 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 1.9→46.61 Å
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拘束条件 |
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LS精密化 シェル | 解像度: 1.9→1.99 Å
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