Figure 6
Host–parasite differences in the active site of OPRTase. Differences in key amino acids are color-coded, with the human enzyme structure in green and the malaria parasite structure in red. The space-filling model depicts the position of the product orotidylate (OMP) from the human OPRTase structure. The amino acids in green are those found within 4 Å of OMP (see §3.3). |