A 60 bp nucleotide sequence coding for a structure of an alpha helix turn alpha helix is highly conserved in Xanthomonas. 在黄单胞菌中高度保守的编码α螺旋转α螺旋结构的60bp核苷酸序列,在交叉功能互补时是必需的。
The results show that CaM exhibits lower content of α helix and relatively higher contents of β sheet and β turn structure in film than that in crystal or water solution. 结果表明,水化膜中CaM及含不同比例Ca2+或Tb3+的蛋白复合物的α-helix的含量较晶体和溶液中为低,而β-sheet和turn结构的含量相对较高。