- PDB-2c2s: Human Dihydrofolate Reductase Complexed With NADPH and 2,4-Diamin... -
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基本情報
登録情報
データベース: PDB / ID: 2c2s
タイトル
Human Dihydrofolate Reductase Complexed With NADPH and 2,4-Diamino-5-(1-o-carboranylmethyl)-6-methylpyrimidine, A novel boron containing, nonclassical Antifolate
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.
マシュー密度: 2.3 Å3/Da / 溶媒含有率: 46.3 % 解説: INTENSITIES WERE CONVERTED TO STRUCTURE FACTORS USING CCP4 PROGRAM TRUNCATE.
結晶化
温度: 277 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 8 詳細: THE TERNARY COMPLEX OF DHFR WITH NADPH AND 34B WAS FORMED BY MIXING HUMAN DHFR (20 MG/ML IN 25 MM KPO4 (PH 7.0), 0.1 MM EDTA, AND 3 MM NAN3) WITH 60 MM NADPH, FOLLOWED 15 MINUTES LATER BY 60 ...詳細: THE TERNARY COMPLEX OF DHFR WITH NADPH AND 34B WAS FORMED BY MIXING HUMAN DHFR (20 MG/ML IN 25 MM KPO4 (PH 7.0), 0.1 MM EDTA, AND 3 MM NAN3) WITH 60 MM NADPH, FOLLOWED 15 MINUTES LATER BY 60 MM OF INHIBITOR IN DMSO (FINAL CONCENTRATIONS OF 2 MM NADPH AND 2 MM INHIBITOR). THIS COMPLEX SOLUTION WAS MIXED WITH AN EQUAL VOLUME OF PRECIPITANT CONTAINING 24-33% PEG 4000, 0.2 M LI2SO4, 0.1 M TRIS CL (PH 7.9-8.4), 5% GLYCEROL, AND EQUILIBRATED WITH THE PRECIPITANT BY HANGING DROP VAPOR DIFFUSION AT 277 K. THE CRYSTAL GREW IN ABOUT 3 WEEKS. THE CRYSTAL WAS FLASH-COOLED DIRECTLY IN LIQUID NITROGEN AFTER HARVESTING INTO MOTHER LIQUOR CONTAINING 10% GLYCEROL.
モノクロメーター: SI (111) / 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: 0.783 Å / 相対比: 1
反射
解像度: 1.4→35 Å / Num. obs: 65300 / % possible obs: 84 % / Observed criterion σ(I): 0 / 冗長度: 3 % / Biso Wilson estimate: 16.1 Å2 / Rmerge(I) obs: 0.05 / Net I/σ(I): 11.2
反射 シェル
解像度: 1.4→1.44 Å / 冗長度: 1.3 % / Rmerge(I) obs: 0.46 / Mean I/σ(I) obs: 1.5 / % possible all: 43.1
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解析
ソフトウェア
名称
バージョン
分類
REFMAC
5.2.0019
精密化
MOSFLM
データ削減
SCALA
データスケーリング
AMoRE
位相決定
精密化
構造決定の手法: 分子置換 開始モデル: UNPUBLISHED HUMAN DHFR STRUCTURE 解像度: 1.4→20 Å / Cor.coef. Fo:Fc: 0.972 / Cor.coef. Fo:Fc free: 0.958 / SU B: 2.682 / SU ML: 0.048 / 交差検証法: THROUGHOUT / ESU R: 0.086 / ESU R Free: 0.074 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD / 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
Rfactor
反射数
%反射
Selection details
Rfree
0.198
3260
5 %
RANDOM
Rwork
0.155
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obs
0.157
61984
83.9 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.4 Å / 溶媒モデル: BABINET MODEL WITH MASK