N Glycosylation

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 ([1]). 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 ([2]), potentially disrupting immune recognition cascades.

Cross-References

References (6)

  1. John MacSharry, Zsuzsanna Kovacs, Yongjing Xie et al. (2024). MacSharry 2024 — Endometriosis Specific Vaginal Microbiota Links to Urine and Serum N-Glycome. Scientific Reports. doi:10.1038/s41598-024-76125-2
  2. Patil RH, Luptakova D, Havlicek V (2021). Infection metallomics for critical care in the post-COVID era. Mass Spectrometry Reviews. doi:10.1002/mas.21755
  3. Yao H, Wan JY, Zeng J et al. (2018). Effects of Compound K, an Enteric Microbiome Metabolite of Ginseng, in the Treatment of Inflammation Associated Colon Cancer. Oncology Letters. doi:10.3892/ol.2018.8414
  4. Summer D Bushman, Eric P Skaar, N Luisa Hiller (2025). Bushman 2025 — The Exploitation of Nutrient Metals by Bacteria for Survival and Infection in the Gut. PLOS Pathogens
  5. Kravchenko V, Zakharchenko T (2023). Kravchenko 2023 — Thyroid hormones and minerals in immunocorrection of disorders in autoimmune thyroid diseases. Frontiers in Endocrinology. doi:10.3389/fendo.2023.1225494
  6. Wilkinson HN, Guinn BA, Hardman MJ (2021). Combined Metallomics/Transcriptomics Profiling Reveals a Major Role for Metals in Wound Repair. Frontiers in Cell and Developmental Biology. doi:10.3389/fcell.2021.788596