Process for producing coenzyme q₁₀

摘要

The present invention has for its object to isolate a gene coding for the enzyme synthesizing coenzyme Q10 side chain synthase from a fungal strain of the genus Saitoella and exploit it to advantage for the efficient microbial production of coenzyme Q10. The present invention provides; a DNA having the nucleotide sequence shown under SEQ ID NO:1; a DNA having a nucleotide sequence derived from the nucleotide sequence of SEQ ID NO:1 by deletion, addition, insertion and/or substitution of one or a plurality of nucleotides and coding for a protein having decaprenyl diphosphate synthase activity; a DNA which hybridizes with the DNA having the nucleotide sequence of SEQ ID NO:1 under stringent conditions and codes for a protein having decaprenyl diphosphate synthase activity.