... cis-pre-nyltransferase, a key enzyme in dolichol synthesis. Mol. Cell. Biol.19, 47 1–4 83.24. Oh, S.K., Han, K H., Ryu, S.B. & Kang, H. (2000) Molecularcloning, expression, and functional analysis ... Heptaprenylpyrophosphate synthetase from Bacillus subtilis. Meth Enzymol. 110,15 3–1 55.33. Fujikura, K., Zhang, Y W., Yoshizaki, H., Nishino, T. &Koyama, T. (2000) Significance of Asn-77 and ... University, Songkla, Thailand;3Department of Biochemistry, Mahidol University, Bangkok, Thailand;4Department ofBiochemistry, Prince of Songkla University, Hat-Yai, ThailandNatural rubber from...