摘要:
The present invention relates to a microorganism with improved production of 5′-xanthosine monophosphate and 5′-guanine monophosphate, and more specifically, to a Corynebacterium sp. microorganism having increased proline dehydrogenase activity compared with an intrinsic activity thereof, a method for producing 5′-xanthosine monophosphate or 5′-guanine monophosphate from the culture medium obtained by culturing the transformed microorganism, and a use of the microorganism for production of 5′-xanthosine monophosphate or 5′-guanine monophosphate.
摘要:
The present invention relates to a microorganism with improved production of 5′-xanthosine monophosphate and 5′-guanine monophosphate, and more specifically, to a Corynebacterium sp. microorganism having increased proline dehydrogenase activity compared with an intrinsic activity thereof, a method for producing 5′-xanthosine monophosphate or 5′-guanine monophosphate from the culture medium obtained by culturing the transformed microorganism, and a use of the microorganism for production of 5′-xanthosine monophosphate or 5′-guanine monophosphate.
摘要:
The present invention relates to a polynucleotide that is active to an acetyl glutamate synthase and acetyl ornithinase which are associated with ornithine or arginine biosynthesis from Corynebacterium glutamicum. The present invention also relates to a polypeptide encoded by said polynucleotide, a recombinant vector comprising said polynucleotide, to a transformant obtained by introducing said recombinant vector to a host microorganism for producing L-ornithine or L-arginine, and transforming the recombinant vector, and to a method for producing L-ornithine or L-arginine by culturing said transformant. The activity of the transformant of the present invention to an acetyl glutamate synthase and acetyl ornithinase is increased as compared to an intrinsic activity, and thus L-ornithine or L-arginine can be produced, at a high yield rate, from the transformant of the present invention.
摘要:
The present invention provides methods for the production of cysteine or derivates thereof by culturing a microorganism having reduced activity of endogenous phosphoserine phosphatase and the activity of PhnC, PhnD, and PhnE is reduced, and enhanced activity of phosphoglycerate dehydrogenase and/or phosphoserine aminotransferase. The O-phosphoserine produced by such an organism can then be reacted with a sulfide in the presence of a sulfydrylase or a microorganism expressing a sulfhydrylase to produce cysteine or a derivative thereof. Microorganisms having these reduced and enhanced properties noted above are also provided herein.
摘要:
The present invention provides methods for the production of cysteine or derivates thereof by culturing a microorganism having reduced activity of endogenous phosphoserine phosphatase and enhanced activity of phosphoglycerate dehydrogenase and/or phosphoserine aminotransferase. The O-phosphoserine produced by such an organism can then be reacted with a sulfide in the presence of a sulfydrylase or a microorganism expressing a sulfhydrylase to produce cysteine or a derivative thereof. Microorganisms having the properties noted above are also provided herein.
摘要:
Disclosed is a method of producing 5′-guanosine monophosphate using a novel microorganism which has a malate dehydrogenase activity higher than that of a wild-type, thereby showing improved ATP productivity. Also, a novel microorganism is disclosed. The method comprises: culturing the corynebacteria strain which is enhanced in malate dehydrogenase activity over the endogenous activity, thus producing ATP in high yield; producing XMP in the culture; adding to the culture an enzyme or microorganism having XMP amination activity; and obtaining GMP from the culture.
摘要:
Disclosed herein are a microorganism producing L-arginine and a method of producing L-arginine using the same. The microorganism is a mutant strain of the genus Corynebacterium, Corynebacterium glutamicum CJR0500. The method for L-arginine production comprises activating the mutant strain C. glutamicum CJR0500 in a fermentation medium at 30° C. for 16 hours and then culturing the activated mutant strain for 72 hours with shaking.
摘要:
The present invention relates to a method for producing lactic acid with high concentration and high yield using Lactobacillus paracasei CJLA0310 KCCM-10542 that is separated and identified from Kimchi. Lactic acid is a very important organic acid with a wide range of applications including food additive such as food preservative, condiment or acidifier, and industrial fields such as cosmetics, chemistry, metals, electronics, fabrics, dyeing textiles, and pharmaceutical industries. Particularly, lactic acid is an essential ingredient of polylactic acid, one of biodegradable plastics to replace recalcitrant non-biodegradable plastics which are main causes of environmental contamination.
摘要:
The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophile Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.
摘要:
A (meth)acrylate compound having an aromatic acid-labile group, the (meth)acrylate compound being represented by the following Formula 1: In Formula 1, R1 is hydrogen or methyl, R2 is hydrogen, a substituted or unsubstituted alkyl, or a substituted or unsubstituted aryl, R3 is hydrogen, a substituted or unsubstituted alkyl, or a substituted or unsubstituted aryl, AR is a substituted or unsubstituted phenyl, or a substituted or unsubstituted aryl having from two to four fused aromatic rings, and carbon CAR is bonded directly to an aromatic ring of AR.