Bridgestone Corporation

Nitto Denko Co. Ltd.

Badan Pengkajian Dan Penerapan Teknologi

Eiichiro Fukuzaki

Akio Kobayashi

Shuji Senda

Tetsuo Omata

Yutaka Nakazono

Tomoki Sando

Norie Watanabe

Koichiro Gyokusen

Haska Nadirman

Purbowasito Wahyu

It is a subject of this invention to isolate a gene group of enzymes involved in the biosynthesis of vitamin E of Para rubber tree, and to determine the base sequence of each gene. According to this invention, genes encoding enzymes involved in the vitamin E biosynthesis were isolated from Para rubber tree and the base sequences of these genes were determined. Since vitamin E is an antioxidant existing in nature, it is expected that transformation of a plant by using the genes obtained in the invention would result in an increase in the vitamin E content of the plant and, in its turn, contribute to the prevention of rubber from aging.

Homogentisic acid geranylgeranyl transerase polypeptide

This invention relates to a novel ester which presents as (CF 1) and a method for the production of the same as well as a process for hydrolysis and a method for the determination of an optical purity using this ester, and the object thereof is to provide an intermediate for the synthesis or various natural products, which has high stability, and the optical purity of which can readily be determined, according to the esterification of 1-oxo-5-hydroxymethyl-2-cyclohexene which is unstable to acids and alkalis. ##STR1##

Ester and method for production thereof as well as hydrolysis process

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Osaka, Japan

Eiichiro Fukuzaki