手法: 蒸気拡散法 / pH: 7.5 詳細: Thrombin was purchased from Haematologic Technologies, Inc. and acetyl-hirudin from Bachem. Thrombin was prepared as described (Skrzpczak-Jankun et al., 1991). Thrombin (1.0 mg/ml in 50 mM ...詳細: Thrombin was purchased from Haematologic Technologies, Inc. and acetyl-hirudin from Bachem. Thrombin was prepared as described (Skrzpczak-Jankun et al., 1991). Thrombin (1.0 mg/ml in 50 mM HEPES, 50 % glycerol, pH 7.0) was incubated with 1.0 mM acetyl-hirudin, 10 mM benzamidine for 1 hr at 4 deg C. Glycerol was removed and the complex concentrated with a centricon 10 (Amicon) to about 10 mg/ml as determined by the Biorad protein assay kit using bovine serum albumin. Crystals of thrombin-acetyl-hirudin-benzmaidine were grown in hanging drops by vapor diffusion after streak seeding. The drops were made from 5 microliters of complex and 5 microliters of reservoir solution (0.10 M Tris, 0.50 M NaCl, 22 % (by volume) PEG 4K, pH 7.5)., VAPOR DIFFUSION
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: 1.5418 Å / 相対比: 1
反射
解像度: 1.9→38.7 Å / Num. all: 18809 / % possible obs: 51 % / Observed criterion σ(F): 0.8 / 冗長度: 1.6 % / Rmerge(I) obs: 0.09 / Net I/σ(I): 3.8
反射 シェル
解像度: 1.9→1.98 Å / Rmerge(I) obs: 0.239 / Mean I/σ(I) obs: 1.5 / % possible all: 26.4
反射
*PLUS
Rmerge(I) obs: 0.09
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解析
ソフトウェア
名称
バージョン
分類
bioteX
(MSC)
データ収集
bioteX
(MSC)
データ削減
X-PLOR
3.1
モデル構築
Quanta
モデル構築
Insight II
モデル構築
X-PLOR
3.1
精密化
bioteX
データスケーリング
X-PLOR
3.1
位相決定
精密化
構造決定の手法: DIFFERENCE FOURIER PLUS REFINEMENT / 解像度: 1.9→7.5 Å / 交差検証法: X-PLOR / σ(F): 1.8 詳細: Bulk solvent terms included in Fob file created with standard X-PLOR script. Arg_H126 was simultaneously refined in two conformations. No density was observed for Trp148, Thr149, Ala149A, ...詳細: Bulk solvent terms included in Fob file created with standard X-PLOR script. Arg_H126 was simultaneously refined in two conformations. No density was observed for Trp148, Thr149, Ala149A, Asn149B, Val149C, Gly149D, and Lys149E in the autolysis loop, and these residues are not included in the model. Disordered waters include: HOH379, HOH380, and HOH381 which are close to one another; HOH381 IS ALSO CLOSE TO HOH711; HOH395 which is in a special position. HOH396 is close to a symmetry related equivalent of itself; HOH434 is close to a symmetry related equivalent of itself; HOH457 is close to a symmetry related equivalent of itself; (THE ABOVE WATERS HAVE STRONG DENSITY AND THEIR REFINED OCCUPANCIES ARE SIGNIFICANTLY GREATER THAN UNITY. THEY MAY REFLECT A DIFFERENT FEATURE THAN DISORDERED WATERS); HOH797 which is close to a symmetry-related equivalent of itself; HOH809 which is close to a symmetry-related equivalent of itself; HOH627 WHICH IS CLOSE TO HOH809. HIS_H57 IS MONOPROTONATED ON THE DELTA NITROGEN. HIS_H91 and His_H119 are MONOPROTONATED ON the epsilon nitrogen