温度: 291 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 8.5 詳細: Caspase-3 variants were crystallized in the presence of Ac-DEVD-CMK. PROTEINS WERE DIALYZED IN A BUFFER OF 10 MM TRIS-HCL, PH 8.5, 1 MM DTT. THE PROTEIN WAS CONCENTRATED TO 10 MG/ML USING ...詳細: Caspase-3 variants were crystallized in the presence of Ac-DEVD-CMK. PROTEINS WERE DIALYZED IN A BUFFER OF 10 MM TRIS-HCL, PH 8.5, 1 MM DTT. THE PROTEIN WAS CONCENTRATED TO 10 MG/ML USING AMICON ULTRAFREE CENTRIFUGAL FILTER DEVICES, AND INHIBITOR, AC-DEVD-CMK RECONSTITUTED IN DMSO, WAS THEN ADDED AT 5:1 WT:WT, INHIBITOR TO PEPTIDE. THE PROTEIN WAS DILUTED TO A CONCENTRATION OF 8 MG/ML BY ADDING 10 MM TRIS-HCL, PH 8.5, CONCENTRATED DTT AND CONCENTRATED NAN3 SO THAT THE FINAL BUFFER WAS 10 MM TRIS-HCL, PH 8.5, 10 MM DTT, 3 MM NAN3. 2 UL OF CONCENTRATED PROTEIN WAS MIXED 1:1 WITH WELL BUFFER THAT CONTAINED 100 MM SODIUM CITRATE, PH 5, 3 MM NAN3, 10 MM DTT AND 17% PEG 6000 W/V. SOLUTIONS WERE INCUBATED AT 18 DEG C USING THE HANGING DROP METHOD. CRYSTALS GREW WITHIN THREE DAYS FOR WILD- TYPE CASPASE-3 AND WITHIN TWO WEEKS FOR THE MUTANTS.
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: 1 Å / 相対比: 1
反射
解像度: 1.977→30.027 Å / Num. obs: 16493 / % possible obs: 81.6 % / 冗長度: 6.7 % / Net I/σ(I): 1.34
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解析
ソフトウェア
名称
バージョン
分類
PHENIX
1.9_1692
精密化
HKL-2000
データ削減
HKL-2000
データスケーリング
PHENIX
位相決定
精密化
解像度: 1.98→30.03 Å / SU ML: 0.2 / 交差検証法: THROUGHOUT / σ(F): 1.34 / 位相誤差: 21.97 詳細: Authors state that there is a fundamental incompatibility in the naming of the inhibitor structure and the refinement program cannot be made to establish a bond that exists between the ...詳細: Authors state that there is a fundamental incompatibility in the naming of the inhibitor structure and the refinement program cannot be made to establish a bond that exists between the inhibitor and the protein at the active site cysteine.