| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
To establish an eco-friendly method for obtaining useful materials from inexpensive raw materials, we focused on a microbial production of glycolic acid from ethylene glycol. We isolated a bacterial strain, Burkholderia sp. AIU 129, that produces an enzyme catalyzing the oxidation of glycolaldehyde into glycolic acid. The enzyme was the first aldehyde oxidase which oxidizes glycolaldehyde and consists of three heterosubunits. Furthermore, we also found Ochrobactrum sp. AIU 033 which produces a novel alcohol oxidase (ALOD) that catalyzes the oxidation of glycolic acid to glyoxylic acid. The ALOD is expected to be useful to produce glyoxylic acid by combing with the pathway for glycolic acid production from ethylene glycol. The cloned ALOD gene was expressed as an active product in recombinant Escherichia col. We succeeded in creating the ALOD mutant which the crude enzyme solution showed 1.2-fold higher activity than that of wild-type ALOD.
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