摘要:
The present invention relates to a method for producing optically active IHOG, which can in turn be used for the production of monatin. The present invention further relates to a method for producing optically active monatin, and aldolase used for these methods. As such, the present invention enables the synthesis of 4-(Indole-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid with high optical purity, which is useful as an intermediate in the synthesis of optically active monatin, from indole pyruvic acid and pyruvic acid (or oxaloacetic acid).
摘要:
4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
摘要:
4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
摘要:
The present invention relates to a process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin by converting a substituted α-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
摘要:
The present invention relates to a process for producing efficiently glutamic acid derivatives (including salts thereof) such as monatin by converting a substituted α-keto acid of formula (1) into a glutamic acid derivative of formula (2) in the presence of an enzyme catalyzing conversion of the same.
摘要:
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.
摘要翻译:可以修饰D-氨基转移酶,以便通过用氨基酸至少在4-(吲哚-3-基甲基)-4-羟基-2-氧代戊二酸代替氨基酸,有效地产生具有高甜度强度的(2R,4R) 在SEQ ID NO:2所示的野生型D-氨基转移酶的氨基酸序列中有效产生(2R,4R) - 单抗的位置(位置100,180〜183,243和244)之一。
摘要:
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 mutating the amino acid sequence of a wild-type D-aminotransferase represented in SEQ ID NO:4.
摘要翻译:可以对D-氨基转移酶进行修饰,从而通过突变a-氨基酸的氨基酸序列,有效地产生4-(吲哚-3-基甲基)-4-羟基-2-氧代戊二酸具有高甜度强度的(2R,4R) SEQ ID NO:4所示的野生型D-氨基转移酶。
摘要:
4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxalacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
摘要:
4-(Indol-3-ylmethyl)-4-hydroxy-2-oxoglutarate, which is useful as an intermediate in the synthesis of monatin, may be synthesized from indole pyruvic acid and pyruvic acid (and/or oxaloacetic acid) by using a novel aldolase derived from the genus Pseudomonas, Erwinia, Flavobacterium, or Xanthomonas.
摘要:
A nanostructure forming method includes: preparing a substrate having an appropriate processing value; applying laser beam having a pulse duration of picosecond order or less to a planar surface oriented in a propagation direction of the laser beam and a direction perpendicular to a polarization direction (electric field direction) of the laser beam in the interior of the substrate at an irradiation intensity which is close to the appropriate processing value of the substrate; forming a structure-modified portion at a focus at which the laser beam is concentrated and in a region which is close to the focus; and forming a nanostructure formed of a nano-hole by selectively etching the structure-modified portion.