Li Han, Gao Feng, Yu Shanshan, Jia Minze, Gong Weimin
Laboratory of Non-coding RNA, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing 100101, People's Republic of China.
Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 Dec 1;68(Pt 12):1525-8. doi: 10.1107/S1744309112043813. Epub 2012 Nov 14.
Thioesterase superfamily member 2 (THEM2) is essential for cell proliferation of mammalian cells. It belongs to the hotdog-fold thioesterase superfamily and catalyzes the hydrolysis of the thioester bonds of acyl-CoA in vitro. In this study, THEM2 protein from zebrafish (fTHEM2) was expressed in Escherichia coli and purified by Ni-affinity and gel-filtration chromatography. fTHEM2 crystals were obtained using the sitting-drop vapour-diffusion method with PEG 10 000 as precipitant. X-ray diffraction data were collected to 1.80 Å resolution using a synchrotron-radiation source. The crystals belonged to the monoclinic space group C2, with unit-cell parameters a=77.1, b=74.4, c=96.6 Å, β=93.7°.
硫酯酶超家族成员2(THEM2)对哺乳动物细胞的增殖至关重要。它属于热狗折叠硫酯酶超家族,在体外催化酰基辅酶A硫酯键的水解。在本研究中,斑马鱼的THEM2蛋白(fTHEM2)在大肠杆菌中表达,并通过镍亲和层析和凝胶过滤层析进行纯化。使用以聚乙二醇10000作为沉淀剂的坐滴气相扩散法获得了fTHEM2晶体。利用同步辐射源收集了分辨率为1.80 Å的X射线衍射数据。晶体属于单斜空间群C2,晶胞参数为a = 77.1、b = 74.4、c = 96.6 Å,β = 93.7°。