[3H]Mannose-labeled lipid- and N-linked oligosaccharide profiles from human primary fibroblasts. A, Separation of LLOs from normal control fibroblasts. B, Separation of LLOs from patient fibroblasts. C, Separation of NLOs from patient fibroblasts. Arrows mark the elution times of standard oligosaccharides from yeast (M5–M9, GlcNAc2Man5–9; G1–G3, GlcNAc2Man9Glc1–3).