1.1.1.396	bacteriochlorophyllide a dehydrogenase	bacteriochlorophyll b biosynthesis	-	
1.3.7.14	3,8-divinyl chlorophyllide a reductase	bacteriochlorophyll b biosynthesis	-	
2.5.1.133	bacteriochlorophyll a synthase	bacteriochlorophyll b biosynthesis	-	
4.2.1.165	chlorophyllide a 31-hydratase	bacteriochlorophyll b biosynthesis	-