Comparison among Impα crystal structures from different organisms.

The Impα proteins were superimposed using the Cα atoms of each protein (residues 83 -505) (a) NcImpα, MmImpα (PDB ID: 3UL1) and HsImpα1 (PDB ID: 4WV6) are represented in black, red and orange, respectively. (b) NcImpα, OsImpα (PDB ID: 4BQK), ScImpα (PDB ID: 1BK5) and HsImpα5 (PDB ID: 2JDQ) are represented in black, blue, green and pink, respectively.