首页> 外文期刊>Acta crystallographica, Section F. Structural biology and crystallization communications >Crystallization and preliminary X-ray diffraction analysis of a new xyloglucanase from Xanthomonas campestris pv. campestris
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Crystallization and preliminary X-ray diffraction analysis of a new xyloglucanase from Xanthomonas campestris pv. campestris

机译:Xanthomonas campestris pv中一种新的木葡聚糖酶的结晶和初步X射线衍射分析。桔梗

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摘要

Xyloglucanases (Xghs) are important enzymes involved in xyloglucan modification and degradation. Xanthomonas campestris pv. campestris (Xcc) is a phytopathogenic bacterium which produces a large number of glycosyl hydrolases (GH), but has only one family 74 GH (Xcc-Xgh). This enzyme was overexpressed in Escherichia coli, purified and crystallized. Diffraction data sets were collected for the native enzyme and its complex with glucose to maximum resolutions of 2.0 and 2.1 angstrom, respectively. The data were indexed in a hexagonal crystal system with unit-cell parameters a = b = 153.4, c = 84.9 angstrom. As indicated by molecular-replacement solution, the crystals belonged to space group P6(1).
机译:木葡聚糖酶(Xghs)是涉及木葡聚糖修饰和降解的重要酶。 Xanthomonas campestris PV。 campestris(Xcc)是一种植物病原细菌,可产生大量糖基水解酶(GH),但只有一个家族74 GH(Xcc-Xgh)。该酶在大肠杆菌中过表达,纯化并结晶。收集天然酶及其与葡萄糖的复合物的衍射数据集,最大分辨率分别为2.0和2.1埃。在六边形晶体系统中以单位晶胞参数a = b = 153.4,c = 84.9埃对数据进行索引。如分子置换溶液所示,晶体属于空间群P6(1)。

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