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Figure 5 | BMC Structural Biology

Figure 5

From: Structure of a conserved hypothetical protein SA1388 from S. aureus reveals a capped hexameric toroid with two PII domain lids and a dinuclear metal center

Figure 5

The putative active site of SA1388. (A) Conserved residues at the putative active sites of SA1388 (green), SP1609 (cyan) and E. coli ybgI (yellow). The two zinc ions of SA1388 and the bridging water molecule are shown as spheres and the equivalent residues in the three structures are labelled in their respective colors. The two histidine residues of SA1388 that are contributed by the adjacent subunit are colored in navy blue. (B) Electron density of the endogenous ligand (Fo-Fc map contoured at 3.0 σ) that is directly ligated to the active site zinc ions in SA1388. Residues interacting with the two zinc atoms are shown and the metal coordinating interactions are indicated by dotted lines. The bridging water molecule between the two Zn atoms is indicated by an asterisk (*).

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BMC Structural Biology

ISSN: 1472-6807

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