Figure 1 | Scientific Reports

Figure 1

From: A Raman algorithm to estimate human age from protein structural variations in autopsy skin samples: a protein biological clock

Figure 1

Explanatory schema of the different secondary structures involved with the spectroscopic measurement of human age based on the protein folding mechanism. Three kinds of protein mesostructures (shown in Table S2) are detected by Raman spectroscopy. Our previous study28 suggested that the rate of random coiled disordered protein structures (Raman signal seen at 1681 cm−1) becoming α-helix structures (Raman signal at 1652 cm−1) was age dependent.

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