Figure 2
Structure of apo PA4063. Two views of the structure showing the layers of the α/β sandwich. (a) The α-helical side; secondary-structure elements are indicated. (b) The β-sheet side: the unstructured His-rich stretches, underlined in the sequence, are represented as orange dashes and histidines located in the folded region are represented as orange sticks. (c) Residues involved in zinc coordination are marked with asterisks, histidines are in bold and unstructured regions are underlined. |