Glycosylation Mechanism: Antigen-Sugar-Glucosamine-Lipid A Structure #1494780 (License: Personal Use)

The diagram depicts a glycoconjugate structure common in Gram-negative bacterial lipopolysaccharides (LPS), where an antigen is linked to two sugar units, then to glucosamine, and finally anchored to lipid A. A curved arrow highlights the enzymatic bond formation catalyzed by GC sialyltransferase, and a detailed chemical structure of the sugar moiety (likely a sialic acid derivative) is shown on the right. This structural arrangement plays a vital role in immune recognition and pathogen virulence.

Used in microbiology, immunology, or biochemistry educational content, research articles, or vaccine development pages; targets students, researchers, or clinicians seeking to understand LPS assembly and antigen presentation mechanisms.