Figure 2: Enzymes of the urea cycle, all of which are identified in our dataset (Table 1). CPS1 = carbamoyl-phosphate synthetase, OTC = ornithine carbamoyltransferase, ASS1 = argininosuccinate synthetase, ASL = argininosuccinate lyase and ARG1 = arginase-1. Captions and colors are the same as in Figure 1. From Boyer (15).