Abstract:
The object of the present invention is to provide a method of efficiently producing an isoprenoid compound. More specifically, the present invention provides a method of producing an isoprenoid compound including culturing an isoprenoid compound-producing microorganism that has a dimethylallyl diphosphate or isopentenyl diphosphate supplying pathway and a blocked 2-ketogluconate formation pathway in a culture medium to form the isoprenoid compound, and the isoprenoid compound-producing microorganism that has a dimethylallyl diphosphate or isopentenyl diphosphate supplying pathway and a blocked 2-ketogluconate formation pathway.
Abstract:
In some embodiments, the present invention provides a protein comprising amino acids in the following sequence L(X) n=14 X 3 (X) n=1 X 1 (X) n=1 E(X) n=4 P(X) n=1 NR(X) n=3 S(X) n=4 D(X) n=2 G(X) n=7 Y(X) n=4 Y (X) n=32-34 X 2 , wherein each X independently represents any naturally occurring amino acid residue and n indicates the number of amino acid residues represented by the respective paranthetical at that position, wherein: a) X1 is selected from the group consisting of S, C, T, M, V, Y, N, P, L, G, Q, A, I, D, W, H, or E, wherein if X 1 is L, H or V, then X 3 is D; and/or b) X 2 is selected from the group consisting of H, L, S or V. In some embodiments, the present invention also provides a protein comprising amino acids in the sequence set forth by SEQ ID NO: 38 or SEQ ID NO: 39, except that: the amino acid at position 406 is an amino acid other than F; and/or the amino acid at position 474 is an amino acid other than N.
Abstract translation:公开了一种显示葡萄糖脱氢酶活性的新型酶。 此外,公开了涉及酶修饰的新颖方法。 突变酶包含氨基酸序列,其中选自下列的(1) - (13)中的一个或至少两个氨基酸被微生物来源的葡萄糖氧化酶的氨基酸序列中的另一个氨基酸置换:( 1)对应于SEQ ID NO:1所示氨基酸序列115位氨基酸的氨基酸; (2)与SEQ ID NO:1所示的氨基酸序列的131位氨基酸相对应的氨基酸; (3)对应于SEQ ID NO:1所示氨基酸序列的132位氨基酸的氨基酸; (4)与SEQ ID NO:1所示的氨基酸序列的193位的氨基酸相对应的氨基酸; (5)对应于SEQ ID NO:1所示氨基酸序列353位氨基酸的氨基酸; (6)与SEQ ID NO:1所示的氨基酸序列的436位氨基酸相对应的氨基酸; (7)对应于由SEQ ID NO:1表示的氨基酸序列的446位的氨基酸的氨基酸; (8)对应于SEQ ID NO:1所示氨基酸序列的472位氨基酸的氨基酸; (9)对应于SEQ ID NO:1所示氨基酸序列的511位氨基酸的氨基酸; (10)对应于SEQ ID NO:1所示氨基酸序列的535位氨基酸的氨基酸; (11)对应于SEQ ID NO:1所示氨基酸序列的537位氨基酸的氨基酸; (12)对应于SEQ ID NO:1所示氨基酸序列582位氨基酸的氨基酸; (13)对应于SEQ ID NO:1所示氨基酸序列583位氨基酸的氨基酸。
Abstract:
The invention relates to the technical area of detoxification and metabolism of drugs as well as endogenous compounds. Particularly, the present invention relates to the physiological and pharmacological significance of glucuronidation and to the biotechnological production of glucuronides. Drug metabolites generated by UDP glycosyltransferases (UGTs) are needed for drug development and toxicity studies, especially in the context of metabolites in safety testing (MIST). Since chemical metabolite synthesis can be stereo chemically demanding and arduous, various biological approaches have been developed; however, no whole-cell biotransformation with recombinant microbes that expresses human UGTs could yet be achieved. In this invention human UDP glucose-6-dehydrogenase was expressed (UGDH) together with a UGT isoform in the fission yeast Schizosaccharomyces pombe and strains that catalyze the whole-cell glucuronidation of standard substrates at rates up to 150 μmol L"1 d"1 were generated. Moreover, two methods to obtain stable isotope-labelled glucuronide metabolites were established: The first makes use of a labelled aglycon, while the second employs 13C6-glucose as a metabolic precursor of isotope-labelled UDP-glucuronic acid (UDP-GA) and yields a sixfold labelled glucuronide. This system should lead to a significant facilitation in the production of both labelled and unlabeled drug glucuronides.
Title translation:FLAVIN-BINDING GLUCOSE DEHYDROGENASE,METHOD FOR MANUFACTING FLAVIN-BINDING GLUCOSE DEHYDROGENASE,and GLUCOSE MEASUREMENT METHOD WITH SAME