CRYSTALLIZED PROTEIN CONTAINS ADDITIONAL N-TERMINAL HISTIDINE TAG AND LINKER HHHHHHGS. ...CRYSTALLIZED PROTEIN CONTAINS ADDITIONAL N-TERMINAL HISTIDINE TAG AND LINKER HHHHHHGS. ADDITIONALLY, ALL METHIONINE RESIDUES WERE DERIVATISED INTO SELENO- METHIONINE RESIDUES. THIS SE-MET UGDG PROTEIN STRUCTURE CORRESPONDS TO THE SE-MET DERIVATIZED DNA SEQUENCE OF GENBANK ENTRY EF488145.2, WHERE UGDG CORRESPONDS TO NUCLEOTIDES 1359-2675. UGDG THUS BEGINS WITH NUCLEOTIDES 1359-13560-13561, WHICH FORM THE CODON GTG. THE CANONICAL TRANSLATION OF CODON GTG IS VALINE, AS IN THE PRESENT STRUCTURE.ODDLY, IN ITS GENBANK ENTRY THE GTG FIRST CODON OF UGDG WAS WRONGLY TRANSLATED INTO METHIONINE.
-
実験情報
-
実験
実験
手法: X線回折 / 使用した結晶の数: 1
-
試料調製
結晶
マシュー密度: 2.65 Å3/Da / 溶媒含有率: 53 % / 解説: NONE
結晶化
温度: 293 K / 手法: 蒸気拡散法 / pH: 6.5 詳細: 1 ML DROPS OF PROTEIN SOLUTION, 5.5 MG/ML SE-MET UGDG IN 25 MM TRIS-HCL PH 8.3, 50 MM NACL, 2.5 MM DTT AND 1 MM NAD, WERE MIXED WITH 1 ML DROPS OF PRECIPITANT SOLUTION, 0.1 M MES PH 6.5, 40 % ...詳細: 1 ML DROPS OF PROTEIN SOLUTION, 5.5 MG/ML SE-MET UGDG IN 25 MM TRIS-HCL PH 8.3, 50 MM NACL, 2.5 MM DTT AND 1 MM NAD, WERE MIXED WITH 1 ML DROPS OF PRECIPITANT SOLUTION, 0.1 M MES PH 6.5, 40 % (W/V) PEG 200, AND LET EQUILIBRATE BY VAPOR DIFFUSION AGAINST 500 ML PRECIPITANT SOLUTION AT 293 K.
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 0.931 Å / 相対比: 1
反射
解像度: 3.4→48.78 Å / Num. obs: 27657 / % possible obs: 99.2 % / Observed criterion σ(I): 0 / 冗長度: 13.1 % / Biso Wilson estimate: 121.79 Å2 / Rmerge(I) obs: 0.08 / Net I/σ(I): 25.1
反射 シェル
解像度: 3.4→3.52 Å / 冗長度: 13.5 % / Rmerge(I) obs: 0.73 / Mean I/σ(I) obs: 3.8 / % possible all: 99.5
-
解析
ソフトウェア
名称
分類
FFFEAR
モデル構築
DENZO
データ削減
SCALEPACK
データスケーリング
SOLVE
位相決定
直接法
位相決定
RESOLVE
位相決定
FFFEAR
位相決定
XFIT
位相決定
精密化
構造決定の手法: 単波長異常分散 開始モデル: NONE 解像度: 3.403→48.76 Å / SU ML: 0.91 / σ(F): 1.38 / 位相誤差: 21.28 / 立体化学のターゲット値: ML 詳細: SE-MET UGDG SAD PHASES LED TO A PRELIMINARY MODEL, WITH 346 OUT OF 438 RESIDUES OF WHICH 318 WERE ASSIGNED AS ALANINES, WHICH WAS USED FOR MOLECULAR REPLACEMENT OF A NATIVE UGDG HEXAGONAL ...詳細: SE-MET UGDG SAD PHASES LED TO A PRELIMINARY MODEL, WITH 346 OUT OF 438 RESIDUES OF WHICH 318 WERE ASSIGNED AS ALANINES, WHICH WAS USED FOR MOLECULAR REPLACEMENT OF A NATIVE UGDG HEXAGONAL CRYSTAL THAT DIFFRACTED UP TO 2.15 ANGSTROM RESOLUTION. THE REFINED NATIVE UGDG HEXAGONAL MODEL WAS THEN USED WITH THE PRESENT SE-MET UGDG DATA TO REFINE THE HERE PRESENTED SE-MET UGDG STRUCTURE. THE SE-MET UGDG REFINEMENT CONVERGED TO R-WORK AND R-FREE OF 0.2018 AND 0.2342, RESPECTIVELY, USING A THIN-SHELLS R-FREE SET WITH 1859 REFLECTIONS. THE FINAL SE-MET UGDG MODEL WAS THEN REFINED WEIGHTING THE STEREO-CHEMICAL AND ADP RESTRAINTS VERSUS THE FULL DATA SET IN ORDER TO OBTAIN BOND DISTANCES, ANGLES AND ADP RMSDS SIMILAR TO THOSE OBTAINED IN THE PRECEDENT R-FREE GUIDED REFINEMENT.
Rfactor
反射数
%反射
Rwork
0.2298
-
-
obs
-
27657
99.59 %
溶媒の処理
減衰半径: 0.86 Å / VDWプローブ半径: 1.1 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL / Bsol: 85.669 Å2 / ksol: 0.332 e/Å3