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. 2018 Oct 23;38(5):BSR20181325. doi: 10.1042/BSR20181325

Figure 12. Cartoon representations of the aligned structures of apo-HmuY (yellow) and apo-Tfo (green) monomers.

Figure 12

A malonate molecule from the crystallization medium is present in the heme-binding pocket of apo-Tfo. The two His residues that bind as axial ligands to the heme group in holo-HmuY, and the Met residues occupying equivalent structural locations in Tfo, are shown as sticks. The rms difference in the two aligned structures is 3.5 Å, calculated for 160 residues using the cealign command in PyMol (The PyMOL Molecular Graphics System, version 1.8 Schrödinger, LLC).