Fig. 4
From: Salvage of the 5-deoxyribose byproduct of radical SAM enzymes
Structural basis for the 5′-deoxyadenosine pathway aldolase, DrdA. a X-ray crystal structure of DrdA (monomer) shown in ribbon representation with the active site manganese ion (purple) and sulfate anion (red) illustrated. b Structural representation of the tetrameric biological unit of the aldolase; the illustrated sulfate anion defines the active site. c View of the active site, illustrating amino acid side chains around the manganese ion. An electron density map is shown (calculated at 1.0σ) around the bound substrate, dihydroxyacetone phosphate (DHAP), and the two positions of Glu76 in the co-complex structure
