Overview
N-glycosylation is a post-translational modification in which glycan chains are attached to asparagine residues on proteins. This modification is critical for protein folding, cell-cell recognition, and immune system signaling. In the context of host-microbe interactions, N-glycosylation patterns determine how the immune system recognizes and responds to both commensal and pathogenic organisms.
In endometriosis, the vaginal microbiota N-glycome shows distinctive alterations that may reflect immune dysregulation at the mucosal interface (macsharry 2024 endometriosis vaginal microbiota n glycome). Pathogenic fungi such as Candida exploit glycosylation to mask immunogenic beta-glucan from host pattern recognition receptors, enabling immune evasion within biofilm communities.
Metal availability intersects with glycosylation biology through metalloenzyme-dependent glycan processing. In critical care settings, infection-associated metallomics shifts alter the activity of metal-dependent glycosyltransferases and glycosidases (patil 2021 infection metallomics critical care), potentially disrupting immune recognition cascades.
Cross-References
- candida albicans — beta-glucan masking via glycosylation
- endometriosis — vaginal microbiota N-glycome alterations
- biofilm — glycan-mediated immune evasion within biofilm structures
- functional shielding — interkingdom immune evasion strategies