| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Research Abstract |
For generation of cell factories for bio-based organic acid production, generation of strains showing high gene-targeting frequencies was performed in citric acid-producing Aspergillus niger. Novel type III polyketide synthase and some key enzymes, such as methylcitrate synthase and aconitate isomerase, in relation to the tricarboxylic acid cycle were examined through gene cloning and enzymatic characterization. There is some possibility that heterologous expression of genes encoding novel and specific enzymes in the citric acid-producing strains as hosts and improvement by metabolic engineering will open the way for generation of the cell factories for bio-based organic acid production.
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