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Figure 2 | Journal of Cheminformatics

Figure 2

From: Consistent two-dimensional visualization of protein-ligand complex series

Figure 2

Complex tree generation. a) In the initial complex tree, a node is inserted for each acyclic atom, for each ring center, for each ring atom that is either an interacting atom or a substituent starting atom, and for each amino acid interaction atom. Subtrees which lie not on a path between interaction atoms are denoted by gray edges. b) After edge condensation and removing subtrees which are not needed the resulting tree contains only one rotatable edge which is highlighted in green. The root node is colored red and the leaves are colored accordingly to the amino acid they belong to. c) The derived complex tree has a suboptimal leaf order, which is optimized by rotation d) such that the yellow nodes are adjacent. e) The tree modifications are applied to the ligand structure diagram.

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