Figure 1
From: Energetics and mechanism of anion permeation across formate-nitrite transporters
Crystal structure of a NirC monomer (PDB ID: 4FC4). The side chains of the constriction-forming residues and of the central histidine are shown as sticks and labeled in the zoomed image. Pore representation done with HOLE77, colour coded by pore radius: red < 1 Å < green < 2.5 Å < blue.
