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Complete topology of a typical PAP. The metal efflux adaptor ZneB is shown here in schematic form (left) colored from blue (N-terminal) through red (C-terminal). The overall topology is presented alongside (right) in equivalent colors for the β-strands and α-helices of each of the domains. The lipoyl domain has been flattened into two halves separated by a dotted line; and the β-barrel domain has also been flattened out as indicated by the circular dotted line.
