Figure 5
From: Conformational changes and loose packing promote E. coli Tryptophanase cold lability
Different conformations of the loop composed of residue 295-310 ( E. coli numbering). The apo wt E. coli loop is colored in blue, the mutant Y74F is colored in orange and C298S in magenta. The same region of holo P. vulgaris Trpase is (in gray) and apo wt E. coli (in red) indicating an additional conformation for this loop. The mutation site 298 is shown as sticks for the apo E. coli (red) and for the C298S mutant in magenta.