发明名称 |
SEQUENCE OF THERMOTOLERANT L-RHAMNOSE ISOMERASE GENE AND USE OF THE SAME |
摘要 |
[PROBLEMS] To provide the sequence of a thermotolerant L-rhamnose isomerase gene. [MEANS FOR SOLVING PROBLEMS] A DNA comprising the base sequence represented by SEQ ID NO:1. A protein comprising the amino acid sequence represented by SEQ ID NO:2. A protein originating in Bacillus pallidus strain 14a (FERM AP-20172) and having an L-rhamnose isomerase activity. A protein having an L-rhamnose isomerase activity which is specified as having the following characteristics: optimum temperature and working temperature: showing the maximum enzymatic activity at 80
C (the optimum temperature) and working temperature ranging from 30 to 80
C; heat stability: concerning the effect of temperature on the enzymatic activity, being stable at up to 50
C in the case of heating for 1 hour; and catalyzing the isomerization from D-psicose to D-allose. A method of producing D-allose which comprises treating a solution containing D-psicose with the above protein having the L-rhamnose isomerase activity as a catalyst at 35 to 80
C to thereby convert D-psicose into D-allose. |
申请公布号 |
EP1788089(B1) |
申请公布日期 |
2014.01.29 |
申请号 |
EP20050781008 |
申请日期 |
2005.08.23 |
申请人 |
MATSUTANI CHEMICAL INDUSTRY CO., LTD. |
发明人 |
IZUMORI, KEN;TAKATA, GORO;TOKUDA, MASAAKI |
分类号 |
C12N15/61;C12N9/90;C12P19/24 |
主分类号 |
C12N15/61 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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