Maps of two individual cells indicating the locations of endogenous biomolecules including (A) nucleotides, (B) proteins, (C) lipids, along with the presence of 13C2H15N-α-syn fibrils as determined by (D) 13C=O amide-I and (E) 13C–2H stretching bands, generated by integrating regions of the Raman spectrum as indicated. Maps are overlaid with bright-field images, and boxes indicate the measurement area (2 μm steps).