This entry represents the N-terminal domain from the TraK protein. The TraK N-terminal domain is a structural motif identified in bacterial type IV secretion systems (T4SSs), which play a crucial role in the proliferation of multi-drug resistance. Th ...
This entry represents the N-terminal domain from the TraK protein. The TraK N-terminal domain is a structural motif identified in bacterial type IV secretion systems (T4SSs), which play a crucial role in the proliferation of multi-drug resistance. This domain is involved in the formation of the outer-membrane core complex (OMCCF) of T4SS encoded by conjugative F plasmids. The structure of the TraK N-terminal domain shows a a beta-sandwich fold composed of five-stranded and four-stranded beta sheets. TraK assembles as a dimer within the complex, with the TraK N-terminal domains situated side by side. The TraK N-terminal domain plays a critical role in stabilizing the OMCCF structure, facilitating the assembly of the outer ring complex (ORC) of the T4SS. This domain interacts with other components of the OMCCF, including TraV and TraK C-terminal domains, contributing to the overall stability and function of the T4SS [1].