Molecular lipophilicity potential (MLP) can be calculated for a protein
and displayed with surface coloring using the command
mlp or the
Molecule Display
icon
.
The image shows the photosynthetic reaction center from a
purple sulfur bacterium, with MLP coloring on the molecular surface
and membrane boundaries from OPM (Orientations of Proteins in Membranes
entry 1eys).
Blue and red balls represent the cytoplasmic and periplasmic sides
of the bacterial inner membrane, respectively.
Parts of the L, M, and H chains span the membrane,
whereas the cytochrome subunit sits on the periplasmic side, at the top.
The surface coloring ranges from dark goldenrod for the most hydrophobic
potentials, through white, to dark cyan for the most hydrophilic.
Ligands including lipid, detergent, heme, and various other cofactors
are shown as purple surfaces.
For image setup after the structure from OPM has been opened,
see the command file mlp.cxc.
More features...