Figure 1
Crystal structure of SDR-WM99c dehydrogenase (apoenzyme form) solved to 2.4 Å resolution (PDB entry 4iuy
). (a) The genetic organization of the A. baumannii GI_12w genomic island encompassing 11 genes. The WM99c gene encoding the SDR-WM99c protein is shaded. Horizontal arrows show the direction of transcription. (b) The tetrameric assembly of SDR-WM99c, with chain A shown in red, chain B in green, chain C in yellow and chain D in blue, demonstrates two major inter-subunit interfaces (A–B and A–D). (c) A single chain of SDR-WM99c coloured by secondary structure illustrates the three-layered α/β structure with a seven-stranded β-sheet. A helical motif (helices α′ and α′′) caps the C-terminal edge of the sheet and displays some conformational mobility. |