2.1.1.133 15270 Biosynthesis of the corrin macrocycle of coenzyme B12 in Pseudomonas denitrificans Pseudomonas denitrificans (nom. rej.) 2.1.1.133 3211 Genetic and sequence analysis of an 8.7-kilobase Pseudomonas denitrificans fragment carrying eight genes involved in transformation of precorrin-2 to cobyrinic acid Pseudomonas denitrificans (nom. rej.) 2.1.1.133 3209 Overexpression in Escherichia coli of 12 vitamin B12 biosynthetic enzymes Pseudomonas denitrificans (nom. rej.)