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Preliminary X-ray crystallographic analysis of a Ca2+-binding protein human S100A1
1Laboratory of Structural Biology, School of Life Science and Engineering and Protein Science Laboratory of the MOE, Tsinghua University, Beijing 100084, People's Republic of China.
Abstract:
S100A1, a Ca(2+)-binding protein from the S100 protein family, has been crystallized by the vapour-diffusion method using polyethylene glycol 4000 as the precipitant at pH 8.5. The crystal belongs to space group P6(3). The unit-cell parameters are a = b = 57.3, c = 104.7 A. There appear to be two S100A1 molecules in the asymmetric unit. The crystals were stable during exposure to X-rays and diffract to 2.6 A resolution in-house.