#241 - 2020年1月 20年の分子を振り返って (Twenty Years of Molecules) 類似性 (1)
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集合体
登録構造単位
C: DNA (35-MER) D: DNA (5'-D(*GP*GP*CP*CP*AP*AP*AP*AP*AP*AP*GP*CP*AP*TP*T)-3') E: DNA (5'-D(*GP*CP*TP*TP*AP*TP*CP*AP*AP*TP*TP*TP*GP*TP*TP*GP*C P*AP*CP*C)-3') A: PROTEIN (INTEGRATION HOST FACTOR (ALPHA) (IHF)) B: PROTEIN (INTEGRATION HOST FACTOR (BETA) (IHF)) ヘテロ分子
BASE NUMBERING CORRESPONDS TO STANDARD LAMBDA ATT SITE COORDINATES. BASES 19 - 47 ARE THOSE FOUND ...BASE NUMBERING CORRESPONDS TO STANDARD LAMBDA ATT SITE COORDINATES. BASES 19 - 47 ARE THOSE FOUND IN THE LAMBDA ATT SITE. THE TOP STRAND (CHAINS D AND E) WAS SYNTHESIZED AS TWO OLIGONUCLEOTIDES, RESULTING IN A NICK BETWEEN BASES 29 AND 30. THE BOTTOM STRAND (CHAIN C) WAS SYNTHESIZED AS A SINGLE 35 MER AND HAS BEEN ASSIGNED NEGATIVE RESIDUE NUMBERS SUCH THAT BASES WITH THE SAME ABSOLUTE VALUE ARE PAIRED. THE CRYSTALS PACK TO FORM A PSEUDO-CONTINUOUS HELIX, WITH THE OVERHANGING BASE 15 OF THE TOP STRAND PAIRED TO THE OVERHANGING BASE -50 OF A 21 NEIGHBORING COMPLEX'S BOTTOM STRAND.
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実験情報
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実験
実験
手法: X線回折 / 使用した結晶の数: 1
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試料調製
結晶
マシュー密度: 2.89 Å3/Da / 溶媒含有率: 58 %
結晶化
手法: 蒸気拡散法, ハンギングドロップ法 / pH: 7.4 / 詳細: pH 7.40, VAPOR DIFFUSION, HANGING DROP / Temp details: ROOM TEMPERATURE
最高解像度: 2 Å / 最低解像度: 15 Å / Observed criterion σ(I): -3 / 冗長度: 8.2 %
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解析
ソフトウェア
名称
バージョン
分類
MLPHARE
位相決定
RAVE
モデル構築
X-PLOR
3.816
精密化
HKL
(DENZO)
データ削減
SCALEPACK
データスケーリング
RAVE
位相決定
精密化
解像度: 2.5→15 Å / 交差検証法: R-FREE / σ(F): 0 詳細: DIFFRACTION IS ANISOTROPIC. FALLS BELOW 2 ALONG X AT 2.5 ANGSTROM, ALONG Y AT 3.0 ANGSTROM, AND ALONG Z IS STILL >2 AT 2.2 ANGSTROM. THE COMPLETENESS OF THE DATA WITHIN AN ELLIPSOID WITH ...詳細: DIFFRACTION IS ANISOTROPIC. FALLS BELOW 2 ALONG X AT 2.5 ANGSTROM, ALONG Y AT 3.0 ANGSTROM, AND ALONG Z IS STILL >2 AT 2.2 ANGSTROM. THE COMPLETENESS OF THE DATA WITHIN AN ELLIPSOID WITH THESE PRINCIPLE AXES IS 98.0%. THIS EXPLAINS THE LOW VALUE OF THE COMPLETENESS IN THE HIGHEST RESOLUTION BIN. THE REPORTED OVERALL RESOLUTION OF 2.5 ANGSTROM IS AN AVERAGE VALUE. DNA PARAMETERS FROM PARKINSON, G., VOJTECHOVSKY, J., CLOWNEY, L., BRUNGER, A.T. AND BERMAN, H.M. (1996) ACTA CRYST. D52, 57-64. NON-WATSON-CRICK BASE PAIRING: T C 28 REVERSE WATSON-CRICK BASE PAIR. T C 29 HOOGSTEEN BASE PAIR.