THERE IS ONE COMPLEX IN THE ASYMMETRIC UNIT, WHICH CONSISTS OF TWO ALPHA-BETA TUBULIN HETERODIMERS ...THERE IS ONE COMPLEX IN THE ASYMMETRIC UNIT, WHICH CONSISTS OF TWO ALPHA-BETA TUBULIN HETERODIMERS (CHAINS A-B AND C-D), AND ONE STATHMIN-LIKE DOMAIN OF RB3 (RB3-SLD) WHICH CORRESPONDS TO STAHMIN RESIDUES 5 TO 145 WITH THE ADDITION OF ONE ACETYLATED ALANINE AT THE N-TERMINUS. THE NUMBERING OF RB3-SLD IS ACCORDING TO THE STATHMIN SEQUENCE. ALPHA- TUBULIN AND BETA-TUBULIN HAVE BEEN ALIGNED AS IN NOGALES ET AL., NATURE VOL 391,199-203. IN THIS ALIGNMENT, RESIDUES 45-46 AND 361-368 OF ALPHA-TUBULIN ARE MISSING IN BETA- TUBULIN. THERE ARE SEVERAL EXPRESSED TUBULIN ISOTYPES IN MAMMALIAN BRAIN. WE USED THE BOS TAURUS TUBULIN SEQUENCE OF THE MOST ABUNDANT ISOTYPES (ALPHA: ISOTYPE 1, GI:73586894, BETA: ISOTYPE 2, GI:51491829) BUT WITH THE ILE TO VAL SUBSTITUTION AT POSITION 318 ON BETA TUBULIN.
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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: 3.82 Å3/Da / 溶媒含有率: 68 %
結晶化
温度: 291 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 7 詳細: PEG, PIPES BUFFER. The crystal of tubulin-colchicine:RB3-SLD complex was soaked with a 0.7mM Phomopsin A solution for 24 hours., pH 7.00, VAPOR DIFFUSION, HANGING DROP, temperature 291K
解像度: 4.1→20 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.938 / SU B: 65.918 / SU ML: 0.784 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R Free: 0.86 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD 詳細: Care should be exercised in interpreting the current model due to the limited (4.1 angstroms) resolution.
Rfactor
反射数
%反射
Selection details
Rfree
0.26471
1277
5 %
RANDOM
Rwork
0.21521
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all
0.21781
26330
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obs
0.21781
25389
96.43 %
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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