Conformation Study of Staphylococcal Enterotoxin B
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Abstract:
The aggregation structure, the molecule chain morphology and secondary structural parameters of SEB were investigated with modern structural analyzing techniques, such as X-ray diffraction, scan electron microscopy, atomic force microscopy and fourier transform infrared spectrum. Crystallization was found in SEB with the crystallinity of 37.8%. The conformation of the conglomerated SEB molecules was sheet and plate. In dilute solution, the length, width and height of the SEB molecular chain were 1500 nm, 20~40 nm and 0.6 nm, respectively. It was also found that the secondary structure of SEB was mainly of β-sheets.
