This domain receives the signal from the sensor partner in bacterial two - component systems . these results indicated that the protein of the orf4 works as atpase function involved in the synthesis of magnetosome or takes part in the signal transduction relate to the promotion of magnetosome biosynthesis 通过对orf4编码蛋白同源比较和功能分析,推测orf4编码蛋白可能的功能有两种:具atpase活性,在磁小体合成过程中为铁转运提供能量;或参与磁小体合成启动过程中的信号转导。
We divided all stpks into 5 subfamilies according to their own structure characterizes . stk - i only possess regions similar to the typical catalytic domain of stpks , stk - ii contain wd40 repeats , stk - iii contain all kinds of regulator domain in their c - terminal region , stk - iv have their catalytic domains located in the n - terminal region , while hstk - i also have a his kinase domain of two - component system 按照stpks结构的不同可划分为五个亚类: stk -亚类只含有一个催化区域; stk -亚类的c端含有wd40重复序列; stk -亚类的c端含有不同的调节区域; stk -亚类的催化区域位于c端, hstk -亚类则既含有丝氨酸苏氨酸激酶的催化区域,又含有组氨酸激酶催化区域。