Miczák A, Juhász A
Experientia. 1978 Sep 15;34(9):1158. doi: 10.1007/BF01922929.
The amount of porphobilinogen accumulated by a Bacillus subtilis hemC mutant strain is dependent on time and exogenic aminolevulinic acid addition. hemC mutant seems to be suitable for porphobilinogen production on a large scale.