Preliminary crystallographic analysis of 4-oxalocrotonate tautomerase reveals the oligomeric structure of the enzyme.
[No authors listed]
摘要
Crystals of recombinant 4-oxalocrotonate tautomerase from Pseudomonas sp. strain CF600 have been obtained in a form suitable for X-ray analysis. The enzyme is a highly efficient catalyst and is unusual in that it consists of subunits of only 62 amino acids. It crystallises in the triclinic space group, P1, with unit cell dimensions a = 39.6 A, b = 51.5 A, c = 51.6 A, alpha = 60.0 degrees, beta = 81.4 degrees, gamma = 69.6 degrees. The crystals diffract to beyond 1.9 A resolution and are stable to irradiation with X-rays. Preliminary crystallographic data are not consistent with the previously suggested pentameric structure, but indicate that the complex is in fact a hexamer with 32 symmetry.
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原始数据
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