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Table 2 Conformation changes of EPS proteins from R. faecalis RLD-53 at different concentration of L-cysteine

From: Photo-fermentative bacteria aggregation triggered by L-cysteine during hydrogen production

Secondary structures Wavenumber (cm-1) L-cysteine (g/l)
0.0 0.5 1.0 1.5
Aggregated strands (%) 1625-1610 1.55 1.21 2.51 2.01
β-Sheet (%) 1640-1630 11.33 14.73 21.09 25.31
Random coil (%) 1645-1640 37.50 27.30 3.28 5.52
α-Helix (%) 1657-1648 16.96 25.52 49.40 31.03
3-Turn helix (%) 1666-1659 20.13 27.63 21.35 34.54
Antiparallel β-sheet/ aggregated strands (%) 1680-1695 12.53 3.62 2.38 1.59