Figure 7
(a) Examples of hexamers and trimer molecular units found in the crystal for alkyl hydroperoxidase D-like proteins from different species; (b) Examples of trimer and dimer complexes observed in the crystal of alkyl hydroperoxidase D-like proteins for some species. (a)In all cases, the three-fold symmetry rotation axis is crossing the figure plane in the center of the oligomer complexes. One functionally important conserved motif is marked by pink color in each structure and the two catalytic cysteine sulfhydryl groups are shown as orange balls. (b)The trimer has antiparallel packing of subunits in the crystal structure. Proteins which occur as dimers are related by a two-fold symmetry rotation axis crossing the figure plane in the center of complexes. The functionally important conserved motif is marked by pink color. The bacterial species origin and PDB structure codes are shown at the top.