EC 1.14.99.3 heme oxygenase (decyclizing)
corrin biosynthesis (part 1)
corrin biosynthesis (part 2)
corrin biosynthesis (part 3)
corrin biosynthesis (part 4)
corrin biosynthesis (part 5)
corrin biosynthesis (part 6)
corrin biosynthesis (part 7)
corrin biosynthesis (part 8)
corrin biosynthesis (anaerobic)
cobinamide salvage pathways
porphyrin biosynthesis (early stages)
porphyrin biosynthesis (later stages)
heme and chlorophyll biosynthesis
chlorophyll biosynthesis (early stages)
chlorophyll biosynthesis (later stages)
chlorophyll catabolism
chlorophyll cycle
biliverdin metabolism