Abstract: The present invention relates to an enzyme complex which the following (i) to (iv) are combined: (i) chimeric beta-agarase formed by a fusion of beta-agarase and the dockerin module of endo-?-1,4-glucanase-B; (ii) chimeric kappa-carrageenase formed by a fusion of kappa-carrageenase and the dockerin module of endo-?-1,4-glucanase-B; (iii) chimeric anhydro-galactosidase formed by a fusion of anhydro-galactosidase and the dockerin module of endo?-1,4-glucanase-B; and (iv) mini cellulose-binding protein A, and to a method of degrading red algal biomass using the same. According to the present invention, an enzymatic degradation process is applied for the production of agar degradation products, deviating from conventional methods that relied on physical and chemical pretreatment processes.

Abstract: The present disclosure relates to an enzyme complex of arabinose isomerase, agarase and 3,6-anhydro galactosidase and a method for producing tagatose by degrading agar using the same. By using the enzyme complex according to the present disclosure, agar obtained from marine biomass can be degraded effectively and useful physiologically active substances such as tagatose can be obtained effectively therefrom.

Abstract: The present invention relates to an enzyme complex in which a heme polymerase and a heme ligase are linked to each other via the dockerin module of cellulase, and to a method for producing a hemozoin using the same. The enzyme complex according to the present invention can polymerize heme with higher efficiency than conventional enzymes, and thus can more efficiently produce hemozoin, a conductive biopolymer.

Abstract: The present invention relates to an expansin-agarase enzyme complex and a method of degrading agar by using the same. The use of the enzyme complex according to the present invention can efficiently degrade agar obtained from marine biomass, and thus can efficiently provide not only galactose or glucose, necessary for ethanol production, but also useful biologically active substances, such as diose, triose, and oligosaccharides.

Abstract: The present disclosure relates to an enzyme complex of arabinose isomerase, agarase and 3,6-anhydro galactosidase and a method for producing tagatose by degrading agar using the same. By using the enzyme complex according to the present disclosure, agar obtained from marine biomass can be degraded effectively and useful physiologically active substances such as tagatose can be obtained effectively therefrom.

Abstract: The present invention relates to an enzym complex in which a heme polymerase and a heme ligase are linked to each other via the dockerin module of cellulas, and to a method for producing a hemozoin using the same. The enzyme complex according to the present invention can polymerize heme with higher efficiency than conventional enzymes, and thus can more efficiently produce hemozoin, a conductive biopolymer.

Abstract: The present invention relates to an expansin-agarase enzyme complex and a method of degrading agar by using the same. The use of the enzyme complex according to the present invention can efficiently degrade agar obtained from marine biomass, and thus can efficiently provide not only galactose or glucose necessary for ethanol production, but also useful biologically active substances, such as diose, triose, and oligosaccharides.

Abstract: The present invention relates to an L-cysteine-producing mutant microorganism having introduced therein genes encoding enzymes which are involved in the L-cysteine metabolic pathway, and more particularly to an L-cysteine-producing mutant microorganism having introduced therein cysE, cysK and cysR, which are genes encoding enzymes which are involved in the L-cysteine metabolic pathway, and to a method of producing L-cysteine using the mutant microorganism. According to the present invention, L-cysteine can be produced with high efficiency as a result of regulating metabolic fluxes associated with the L-cysteine metabolic pathway of the mutant microorganism and regulating a system for supplying a sulfur source essential for synthesis of L-cysteine.

Abstract: The present invention relates to an L-cysteine-producing mutant microorganism having introduced therein genes encoding enzymes which are involved in the L-cysteine metabolic pathway, and more particularly to an L-cysteine-producing mutant microorganism having introduced therein cysE, cysK and cysR, which are genes encoding enzymes which are involved in the L-cysteine metabolic pathway, and to a method of producing L-cysteine using the mutant microorganism. According to the present invention, L-cysteine can be produced with high efficiency as a result of regulating metabolic fluxes associated with the L-cysteine metabolic pathway of the mutant microorganism and regulating a system for supplying a sulfur source essential for synthesis of L-cysteine.

Abstract: The present invention relates to a mutant microorganism having the ability to produce 5-aminolevulinic acid, and more particularly, to a mutant microorganism having the ability to produce 5-aminolevulinic acid wherein a glutamyl-tRNA reductase-encoding gene is introduced in a glutamic acid-producing microorganism, and to a method for producing 5-aminolevulinic acid using the same. According to the present invention, 5-aminolevulinic acid that is useful in the medical or agricultural field can be produced in a significantly higher yield than that of conventional production methods.

Abstract: The present invention relates to an enzyme complex which the following (i) to (iv) are combined: (i) chimeric beta-agarase formed by a fusion of beta-agarase and the dockerin module of endo-?-1,4-glucanase-B; (ii) chimeric kappa-carrageenase formed by a fusion of kappa-carrageenase and the dockerin module of endo-?-1,4-glucanase-B; (iii) chimeric anhydro-galactosidase formed by a fusion of anhydro-galactosidase and the dockerin module of endo-?-1,4-glucanase-B; and (iv) mini cellulose-binding protein A, and to a method of degrading red algal biomass using the same. According to the present invention, an enzymatic degradation process is applied for the production of agar degradation products, deviating from conventional methods that relied on physical and chemical pretreatment processes.

Abstract: The present invention relates to a mutant microorganism having the ability to produce 5-aminolevulinic acid, and more particularly, to a mutant microorganism having the ability to produce 5-aminolevulinic acid wherein a glutamyl-tRNA reductase-encoding gene is introduced in a glutamic acid-producing microorganism, and to a method for producing 5-aminolevulinic acid using the same. According to the present invention, 5-aminolevulinic acid that is useful in the medical or agricultural field can be produced in a significantly higher yield than that of conventional production methods.