摘要:
The present invention provides a method for highly expressing a recombinant FAD-GDH protein derived from filamentous fungi, protein obtained by the method, and a regent for measuring glucose using the protein. According to the invention, the FAD-GDH can be highly expressed by altering DNA sequence coding for a signal peptide of FAD-GDH gene isolated from Aspergillus oryzae. FAD-GDH can be stably produced by adjusting pH of 7.1 to 7.3 during culture production.
摘要:
The present invention provides a method for highly expressing a recombinant FAD-GDH protein derived from filamentous fungi, protein obtained by the method, and a regent for measuring glucose using the protein. According to the invention, the FAD-GDH can be highly expressed by altering DNA sequence coding for a signal peptide of FAD-GDH gene isolated from Aspergillus oryzae. FAD-GDH can be stably produced by adjusting pH of 7.1 to 7.3 during culture production.
摘要:
The invention provides a modified flavin adenine dinucleotide dependent glucose dehydrogenase (FADGDH), as well as a glucose sensor comprising the modified FADGDH and a method for measuring glucose comprising using the glucose sensor to measure glucose of a sample.
摘要:
The present invention effectively produces glucose dehydrogenase derived from Aspergillus oryzae, and provides more practical glucose dehydrogenase.
摘要:
An object of the present invention is to provide a more practically advantageous enzyme usable as a reagent for measuring blood glucose than the known enzymes used as blood glucose sensors.A modified flavin adenine dinucleotide dependent glucose dehydrogenase (FADGDH) with more improved heat stability than FADGDH derived from wild-type FADGDH, the modified FADGDH being derived from preferably a eukaryote, more preferably a filamentous fungus, and furthermore preferably an Aspergillus fungus, and, for example, those having a primary structure with at least one amino acid substituted, deleted, inserted or added to FADGDH having an amino acid sequence represented by SEQ ID Nos. 2 or 46 in the sequence table.
摘要翻译:本发明的目的是提供比用作血糖传感器的已知酶更可实用的用作测量血糖的试剂的酶。 与来自野生型FADGDH的FADGDH相比,具有比来自野生型FADGDH的FADGDH更好的热稳定性的改良的黄素腺嘌呤二核苷酸依赖性葡萄糖脱氢酶(FADGDH),修饰的FADGDH优选来自真核生物,更优选丝状真菌,更优选来自真菌, 例如具有至少一个氨基酸被取代,缺失,插入或添加到具有序列表中SEQ ID No.2或46所示的氨基酸序列的FADGDH的一级结构的那些。
摘要:
The present invention relates to a method for enhancing stability of a composition comprising soluble glucose dehydrogenase (GDH). Soluble GDH is preferably FAD-dependent GDH derived from filamentous fungus, and the best effect is observed in FAD-GDH derived from A. oryzae or FAD-GDH derived from A. terreus. According to the invention, in a composition comprising soluble glucose dehydrogenase (GDH), stability of GDH can be enhanced by coexisting the enzyme with one or more compounds selected from amino acids and sugars which are not substrate of the enzyme, thus expected to enhancing a measurement accuracy of glucose.
摘要:
The present invention effectively produces glucose dehydrogenase derived from Aspergillus oryzae, and provides more practical glucose dehydrogenase. The invention makes it possible to efficiently produce glucose dehydrogenase and to obtain glucose dehydrogenase in more practical manner by using a glucose dehydrogenase gene isolated from Aspergillus oryzae.
摘要:
The present invention effectively produces glucose dehydrogenase derived from Aspergillus oryzae, and provides more practical glucose dehydrogenase. The invention makes it possible to efficiently produce glucose dehydrogenase and to obtain glucose dehydrogenase in more practical manner by using a glucose dehydrogenase gene isolated from Aspergillus oryzae.
摘要:
Provided is an enzyme that is further advantageous in terms of practical aspects when compared to publicly known enzymes for blood sugar sensors, and that can be used in a blood sugar level measuring reagent A flavin adenine dinucleotide-dependent glucose dehydrogenase that has amino acid sequence including a specific amino acid in an amino acid sequence shown in SEQ ID NO:2 or an amino acid sequence that has 60% homology therewith, and that has an improved temperature dependency.
摘要翻译:提供了与公知的血糖传感器的酶相比,在实用方面更有利的酶,其可用于具有氨基酸序列的血糖水平测定试剂A黄素腺嘌呤二核苷酸依赖型葡萄糖脱氢酶 SEQ ID NO:2所示的氨基酸序列中的特定氨基酸或与其同源性为60%的氨基酸序列,并且具有改善的温度依赖性。
摘要:
A composition for enhancing synthesis of DNA comprising an anion-supplying substance that is effective in promoting DNA synthesis in enzymatic DNA synthesis reactions, in particular a salt of a dicarboxylic acid. Further enhanced DNA synthesis promoting effects can be achieved by using, together with the anion-supplying substance, at least one compound selected from the group consisting of dimethylsulfoxide and compounds represented by the following formula (1): R2—CH2—NR1xHy (1) wherein R1 is an alkyl group having 1 to 3 carbon atoms, R2 is a substituent selected from the group consisting of the following (a) and (b): (a) oxygen and (b) radicals represented by the formula wherein R4 is methyl, hydrogen or forms a pyrrolidine ring when combined with R1, R5 is —CO2H or —SO3H, and n is an integer from 0 to 2, x is an integer from 1 to 3 and y is an integer from 0 to 2, provided that x plus y equals 3. The present invention further provides a thermostable DNA polymerase-related factor derived from Thermococcus species, which has an activity to promote the DNA synthesis activity of DNA polymerase or bind to DNA polymerase.