Abstract:
본발명은자일리톨의생산에 NADPH 및 NADH를공히이용할수 있는재조합효모를이용한자일리톨의생산방법에관한것으로, NADPH, NADH 의존적인 XR(xylose reductase)을균주내에서모두발현시킴으로써보효소재생이원활히일어나자일리톨생산성이향상되었고, NADPH 및 NADH의생산에각각관여하는 ZWF1 및 ACS1 유전자를과발현시켜, 자일리톨의생산성을증대시킬수 있었다.
Abstract:
The present invention relates to a method for production of xylitol using a recombinant yeast using NADPH and NADH for xylitol production, which expresses all the NADPH,NADH-dependent xylose reductase (XR) in a strain to smoothly regenerate enzyme to improve productivity of xylitol, and overexpresses ZWF1 and ACS1 genes relating to each of NADPH and NADH production to improve productivity of xylitol.
Abstract:
The present invention relates to a method for producing 3-hydroxypropionic acid using recombinant escherichia coli with high yield. According to one embodiment of the present invention, provided is a method for producing 3-hydroxypropionic acid. According to one embodiment of the present invention, the method for producing 3-hydroxypropionic acid with high yield uses recombinant escherichia coli as a host. According to one embodiment of the present invention, the method for producing 3-hydroxypropionic acid with high yield uses glycerol, xylose, and glucose.
Abstract:
PURPOSE: A method for producing ethanol from xylose is provided to improve ethanol yield and productivity. CONSTITUTION: A method for producing ethanol comprises: a step of transforming Saccharomyces cerevisiae to obtain recombinant Saccharomyces cerevisiae which expresses xylose reductase(XR) and xylitol dehydrogenase(XDH) and overexpresses xylulokinase(XK); and a step of producing ethanol from xylose. A Tor signal transduction pathway-associated gene is knocked out in the recombinant Saccharomyces cerevisiae. The gene includes PPH21, PPH22, PPH3, PPM1, TOR1, TPD3 or MAF1 gene.
Abstract:
An umbrella for a wheelchair comprises a support, a middle frame, a first frame, and a second frame. The support is extended in a first direction and includes an insertion groove formed in parallel with the first direction. The middle frame is fixed to the support in the first direction. The first frame is fixed to the middle frame such that the first frame is movable in the first direction. The second frame is fixed to the middle frame and the first frame to be folded or unfolded according to the movement of the first frame, and includes extension portions having different lengths.
Abstract:
PURPOSE: A modified microorganism with improved xylose utilization is provided to produce chemical materials. CONSTITUTION: A modified microorganism converts xylose into xylitol by xylose reductase, xylitol into xylulose by xylitol dehydrogenase, and xylulose into xylulose-5-phosphate by xylulokinase. The microorganism produces a chemical material using xylose. Xylose is converted into xylitol by xylose reductase. The xylose reductase and xylitol dehydrogenase activities are derived from Pichia stipitis. The xylulokinase activity is derived from Saccharomyces cerevisiae. The modified microorganism is E.coli or Kluyveromyces marxianus. The chemical material includes alcohol, organic acid, amino acid, or vitamin. The modified microorganism is deposited by deposit number KCTC11951BP, KCTC11952BP or KCTC11953BP.