Chlamydia is a type of prokaryotic microorganisms that are strictly obligate intracellular parasitic.Protein phosphorylation is a post-translational modification method of protein that plays an important role in the process of cell signal transduction.It is composed of three parts: protein kinase and phosphatase,two-component signaling system,and cooperation-switch mechanism.Protein phosphorylation can regulate the physiological processes of Chlamydia,such as metabolism,development,and pathogenicity.However,due to the special growth environments and the limitations of research methods of Chlam...