| abstract |
(57) Abstract: A DNA fragment encoding a 5-aminolevulinic acid synthase derived from a photosynthetic bacterium, which has high productivity of 5-aminolevulinic acid even in the dark, and a recombinant containing the DNA fragment. Somatic DNA, transformant cells transformed with the recombinant DNA, and use of the transformant cells. [Effect] By using a transformant cell transformed with this recombinant DNA, a large amount of 5-aminolevulinic acid synthase can be produced, and 5-aminolevulinic acid can be industrially produced. |