Sialylation mass-shift: ΔM = n·M_sialic; Neu5Ac=291 Da, NeuGc=307 Da; integer stoichiometry

Layer 3 — Biologyin the glycobiology subtree

Sialylation mass-shift framework — the canonical integer-stoichiometry mass-increment rule underlying mass-spectrometry-based glycan profiling. Physical setup: sialic acids (the nine-carbon α-keto acid sugars — Neu5Ac, NeuGc, Kdn, etc.)…

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