Predicted AtMDL 3D structures. Amino acid sequences of the AtMDL proteins were subjected to analysis via the PHYRE2 Fold Recognition server (http://www.sbg.bio.ic.ac.uk/phyre2/html/page.cgi?id=index) and rendered with PyMOL (http://www.pymol.org/). The predicted 3D structures (ribbon models and electrostatic surface potential) of AtMDL1, AtMDL2 and AtMDL3 are visualized in comparison to the known X-ray-resolved 3D structure of HsMIF. In the upper panels, green arrows symbolize β-sheets and green coils α-helices. In the lower panels, red color indicates an excess of negative and blue color an excess of positive charges near the surface, while white color specifies neutral regions. For simplicity, the structure of the monomer is shown only. A View with the four-stranded β-sheet in front. B View with the two antiparallel α-helices in front.