Figure 1

Details of structural matches. PDB codes and chain identifiers are reported for each one of the selected structural matches together with the number and type of aligned amino acids. The arrows describe permutations and inversions in protein sequences; the N to C-term direction is colour-coded (blue is associated to N-term and red to C-term). a) The residues involved in the match bind S-adenosyl-homocysteine (1boo) and S-adenosyl-methionine (1vidA), and share a high structural similarity. b) Matching residues bind ADP, Mg and PHY in the 1iow structure; and ADP, Mg and GSH in the 2hgs structure c) The 1dljA residues involved in the match bind a 1,4-dihydronicotinamide adenine dinucleotide; 1say is 92% identical to 1pjc, which binds nicotinamide-adenine-dinucleotide with the residues involved in the 3D match. d) In 1b0uA, the matching residues bind an ATP molecule; 1kklA is 100% identical to 1jb1A, which binds PO4 with the residues involved in the 3D match (see Results).