Kailei Sun is a postdoctoral fellow at Chinese University of Hong Kong, working under the guidance of Shannon Au, having completed her undergraduate studies at Fudan University. Her research focuses on bacterial protein structures and functions, particularly large protein complexes in Helicobacter pylori. Experienced in using cryo-electron microscopy (cryo-EM) to solve protease structures in various conformations, she is currently exploring cryo-electron tomography (cryo-ET) to advance the understanding of macromolecular assemblies. By attending this course, she aims to further expand their knowledge and technical skills, contributing to the broader field of microbiology.