Figure 1

Ribbon representations of the 3D structures of 2LHC (a), 2LHG (b), 2LHD (c) and 2LHE (d) with their amino acid sequences. A segment with dark gray denotes an α helix and one with light gray denotes a β strand. The meanings of the symbols "a" and "b" are same as that in Figure 11. The differences between the sequences are highlighted and shown in stick in the figure above.