article published yes Maisha Rahman author Nelson Ramirez author 39831956-E4FE-11E9-85DE-0DC7E5697425 Carlos A Diaz‐Balzac author Hannes E Bülow author MaDe department N-glycans are molecularly diverse sugars borne by over 70% of proteins transiting the secretory pathway and have been implicated in protein folding, stability, and localization. Mutations in genes important for N-glycosylation result in congenital disorders of glycosylation that are often associated with intellectual disability. Here, we show that structurally distinct N-glycans regulate an extracellular protein complex involved in the patterning of somatosensory dendrites in Caenorhabditis elegans. Specifically, aman-2/Golgi alpha-mannosidase II, a conserved key enzyme in the biosynthesis of specific N-glycans, regulates the activity of the Menorin adhesion complex without obviously affecting the protein stability and localization of its components. AMAN-2 functions cell-autonomously to allow for decoration of the neuronal transmembrane receptor DMA-1/LRR-TM with the correct set of high-mannose/hybrid/paucimannose N-glycans. Moreover, distinct types of N-glycans on specific N-glycosylation sites regulate DMA-1/LRR-TM receptor function, which, together with three other extracellular proteins, forms the Menorin adhesion complex. In summary, specific N-glycan structures regulate dendrite patterning by coordinating the activity of an extracellular adhesion complex, suggesting that the molecular diversity of N-glycans can contribute to developmental specificity in the nervous system. Embo Press2022 eng GeneticsMolecular BiologyBiochemistry 1469-221X 1469-3178 35586945 00079730270000110.15252/embr.202154163 237 M. Rahman, N. Ramirez, C. A. Diaz‐Balzac, and H. E. Bülow, “Specific N-glycans regulate an extracellular adhesion complex during somatosensory dendrite patterning,” <i>EMBO Reports</i>, vol. 23, no. 7. Embo Press, 2022. M. Rahman, N. Ramirez, C.A. Diaz‐Balzac, H.E. Bülow, EMBO Reports 23 (2022). Rahman, Maisha, et al. “Specific N-Glycans Regulate an Extracellular Adhesion Complex during Somatosensory Dendrite Patterning.” <i>EMBO Reports</i>, vol. 23, no. 7, e54163, Embo Press, 2022, doi:<a href="https://doi.org/10.15252/embr.202154163">10.15252/embr.202154163</a>. Rahman, M., Ramirez, N., Diaz‐Balzac, C. A., &#38; Bülow, H. E. (2022). Specific N-glycans regulate an extracellular adhesion complex during somatosensory dendrite patterning. <i>EMBO Reports</i>. Embo Press. <a href="https://doi.org/10.15252/embr.202154163">https://doi.org/10.15252/embr.202154163</a> Rahman M, Ramirez N, Diaz‐Balzac CA, Bülow HE. 2022. Specific N-glycans regulate an extracellular adhesion complex during somatosensory dendrite patterning. EMBO Reports. 23(7), e54163. Rahman M, Ramirez N, Diaz‐Balzac CA, Bülow HE. Specific N-glycans regulate an extracellular adhesion complex during somatosensory dendrite patterning. <i>EMBO Reports</i>. 2022;23(7). doi:<a href="https://doi.org/10.15252/embr.202154163">10.15252/embr.202154163</a> Rahman, Maisha, Nelson Ramirez, Carlos A Diaz‐Balzac, and Hannes E Bülow. “Specific N-Glycans Regulate an Extracellular Adhesion Complex during Somatosensory Dendrite Patterning.” <i>EMBO Reports</i>. Embo Press, 2022. <a href="https://doi.org/10.15252/embr.202154163">https://doi.org/10.15252/embr.202154163</a>. 122752023-01-16T10:01:44Z2026-06-18T17:26:25Z