Status	Description	Organism	Genes	References
	tetrahydrogeranylgeranyl-bacteriochlorophyll a reductase	Methylobacterium extorquens	bchP
	tetrahydrogeranylgeranyl-bacteriochlorophyll a reductase	Rhodobacter capsulatus	bchP
	geranylgeranyl reductase	Synechococcus elongatus	chlP2
	geranylgeranyl reductase	Synechococcus elongatus	chlP1
	tetrahydrogeranylgeranyl-bacteriochlorophyll a reductase	Thiocystis violascens	GLMH-2296