#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
A: Endonuclease Bse634IR B: Endonuclease Bse634IR C: Endonuclease Bse634IR D: Endonuclease Bse634IR E: Endonuclease Bse634IR F: Endonuclease Bse634IR G: Endonuclease Bse634IR H: Endonuclease Bse634IR I: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') J: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') K: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') L: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') M: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') N: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') O: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') P: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') R: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') S: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') V: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') X: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') Y: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3') Z: DNA (5'-D(*TP*TP*CP*GP*AP*CP*CP*GP*GP*TP*CP*GP*A)-3')
THE BIOLOGICAL ASSEMBLY OF BSE634I IS A TETRAMER FORMED FROM TWO DIMERS STACKED BACK-TO-BACK. EACH PRIMARY DIMER BINDS ONE DNA DUPLEX. THERE ARE TWO TETRAMERS FOUND IN THE ASYMMETRIC UNIT. PROTEIN SUBUNITS AB AND EF FORM THE FIRST TETRAMER, WHICH SPECIFICALLY BINDS TWO DNA DUPLEXES (IJ AND MN). THE SECOND TETRAMER IS COMPOSED FROM TWO DIMERS CD AND GH, EACH DIMER SPECIFICALLY BINDS DNA DUPLEX (KL AND OP). THEREFORE, THERE ARE TWO BIOLOGICAL ASSEMBLIES IN THE ASYM. UNIT. DNA DUPLEXES XY, VZ AND RS ARE NOT PARTS OF THE BIOLOGICAL ASSEMBLY, THEY ARE JUST CRYSTAL PACKING ARTIFACTS.
SEQUENCE AUTHORS STATE THAT THE RESIDUES AT POSITION 110, 111, AND 130 ARE CORRECTLY IDENTIFIED AND ...SEQUENCE AUTHORS STATE THAT THE RESIDUES AT POSITION 110, 111, AND 130 ARE CORRECTLY IDENTIFIED AND THE BIOCHEMICAL DATA SHOWS THAT THE PROTEIN IS ACTIVE.
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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: 2.3 Å3/Da / 溶媒含有率: 46.1 %
結晶化
温度: 293 K / 手法: 蒸気拡散法 / pH: 5.5 詳細: 0.1 M Bis-Tris, 0.5% polyvinylpyrrolidone and 16% of PEG400, VAPOR DIFFUSION, temperature 293K, pH 5.5