Figure 1 - full size

Figure 1. Figure 1. Pteridine biosynthesis pathway: 1, 7,8-dihydro- Image -neopterin 3'-triphosphate; 2, 7,8-dihydro- Image -monapterin 3'-triphosphate; 3, 7,8-dihydro- Image -neopterin; 4, 6-hydroxymethyl-7,8-dihydropterin.