Fig. 4: Crystal structure resolution of brutieridin 11.
From: Hydrolase–like catalysis and structural resolution of natural products by a metal–organic framework

Views of the 3D open-framework of MOF 2 (a) and 11a@2 (b) along the c-axis (the crystallization water molecules are omitted for clarity). The 3D networks are depicted as gold sticks, with the only exception of serine residues oxygen atoms, which are represented as red sticks. c View of fragment of 11a encapsulated within channels. d Top (left) and side (right) perspective views of a single channel of 11a@2. Dashed lines represent hydrogen bonds between guest molecules involving also hydroxyl groups from the amino acid residue. The molecules of 11a are shown as red (oxygen) and gray (carbon) stick/solid surfaces.