Abstract:
The present invention relates to a novel esterase and a gene encoding the same, and a method for producing the esterase using the same. The esterase according to the present invention has a high activity even at high temperature and has an esterase activity even at high pH. Therefore, the esterase according to the present invention can be useful for a production of a detergent, food, and a drug.
Abstract:
The present invention relates to novel amidase, a gene encoding thereof, and a production method of caprolactam by using the amidase and the gene. The amidase of the present invention is capable of producing alpha-amino-epsilon-caprolactam from lysine. The alpha-amino-epsilon-caprolactam is a material for nylon and is internationally mass-produced. Therefore, the present invention provides a novel method of producing the alpha-amino-epsilon-caprolactam which is an environmentally friendly material for nylon.
Abstract:
The present invention relates to novel hydrogenases separated from new hyperthermophilic strains belonging to Thermococcus genus, genes encoding the same, and a method for producing hydrogen using the same. According to a method for producing hydrogen of the present invention, a large amount of hydrogen can be produced by culturing the strains in a specific culture condition and therefore, it is more economical and effective compared to the existing method for producing hydrogen and hydrogen can be produced at a high temperature.
Abstract:
The present invention relates to novel hydrogenases separated from new hyperthermophilic strains belonging to Thermococcus genus, genes encoding the same, and a method for producing hydrogen using the same. According to a method for producing hydrogen of the present invention, a large amount of hydrogen can be produced by culturing the strains in a specific culture condition and therefore, it is more economical and effective compared to the existing method for producing hydrogen and hydrogen can be produced at a high temperature.
Abstract:
PURPOSE: A DNA polymerase F7 and genes thereof are provided to enhance elongation and processivity and to be used in PCR. CONSTITUTION: A DNA polymerase F7 contains an amino acid sequence of sequence number 2. A DNA polymerase F7 gene encoding an amino acid sequence of sequence number 2 contains a base of sequence number 1. A recombinant vector contains the polymerase F7 gene of sequence number 1. A host cell is transformed with the recombinant vector containing the DNA polymerase F7 gene.
Abstract:
PURPOSE: A novel hydrogenase isolated from Thermococcus spp. and a method for producing hydrogen using the same are provided to produce hydrogen without high temperature and pressure. CONSTITUTION: A hydrogenase contains an amino acid sequence of sequence number 5. A gene encoding the hydrogenase contains a base sequence of sequence number 16. A method for producing hydrogen from Thermococcus spp. comprises: a step of preparing a medium; a step of culturing Thermococcus spp. in the medium; and a step of isolating hydrogen. The medium contains carbon monoxide. The Thermococcus spp. is Thermococcus onnurineus NA1(deposit number: KCTC 10859BP).
Abstract:
PURPOSE: A method for producing hydrogen using hydrogenase isolated from Thermococcus spp. is provided to cheaply and efficiently produce hydrogen even at high temperature. CONSTITUTION: A hydrogenase contains an amino acid sequence of sequence number 7. A gene encoding the hydrogenase contains a base sequence of sequence number 18. A method for producing hydrogen from Thermococcus spp. comprises: a step of preparing a medium; a step of culturing Thermococcus spp. in the medium at 80°C under the anaerobic condition; and a step of isolating hydrogen. The Thermococcus spp. is Thermococcus onnurineus NA1(deposit number: KCTC 10859BP). The medium contains formate.
Abstract:
PURPOSE: A novel hydrogenase isolated from Thermococcus sp. and a method for producing hydrogen using the same are provided to produce a large amount of hydrogen even at high temperature. CONSTITUTION: A hydrogenase has an amino acid sequence selected from sequence numbers 1-8. A gene encoding the hydrogenase contains a base sequence selected from sequence numbers 12-19. A method for producing hydrogen from Thermococcus spp. comprises: a step of preparing a medium; a step of culturing Thermococcus spp. in a culture container; and a step of isolating hydrogen from culture container. The Thermococcus spp. is Thermococcus onnurineus NA1(deposit number: KCTC 10859BP). The medium contains carbon monoxide, alkyl formate, or starch. The culture is performed at 80°C and under anaerobic condition.
Abstract:
PURPOSE: A novel epoxide hydrolase is provided to hydrolyze non-degradable epoxide and to attenuate SO cytotoxicity. CONSTITUTION: An expoxide hydrolase has an amino acid sequence of sequence number 1. A method for preparing the epoxide hydrolase comprises: a step of inserting a gene encoding the epoxide hydrolase to an expression vector to prepare a recombinant vector; a step of introducing the recombinant vector to a host cell for overexpression; and a step of isolating and purifying the overexpressed apoxide hydrolase. The epoxy substrate is non-degradable epoxide substrate, styrene 7,8-oxide.