Mutated D-aminotransferase and method for producing...

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing alpha or beta amino acid or substituted amino acid...

Reexamination Certificate

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C435S121000, C435S252300, C435S189000, C435S193000

Reexamination Certificate

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08058034

ABSTRACT:
A D-aminotransferase can be modified so as to efficiently produce (2R,4R)-monatin having high sweetness intensity from 4-(indol-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid by substituting an amino acid at least at one of positions (positions 100, 180 to 183, 243 and 244) involved in efficiently producing the (2R,4R)-monatin in an amino acid sequence of a wild-type D-aminotransferase represented in SEQ ID NO:2.

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