... 7876–7883.40. Okada, K., Kainou, T., Tanaka, K., Nakagawa, T., Matsuda, H.& Kawamukai, M. (1998) Molecular cloning and mutational analysis of the ddsA gene encoding decaprenyl diphosphate syn-thase ... polyunsaturated fatty acids. Proc. NatlAcad. Sci. USA 93, 7534–7539.6. Suzuki, K., Okada, K., Kamiya, Y., Zhu, X., Tanaka, K.,Nakagawa, T., Kawamukai, M. & Matsuda, H. (1997) Analysis of the ... mitochondrial transit sequences were amplifiedby PCR using the oligonucleotides 5¢-AGGTCGACAGATTAGCATGTAAATAG-3¢ (creates a SalIsite)and5¢-CGAAGCTTGGGGGTTACAGAGTTTGA-3¢ (cre-ates a HindIII site)....