Abstract: To provide a novel class-A GPCR antagonist, a production method therefor, or a novel compound that interacts with a Na+-water cluster binding site of a class-A GPCR. Used is a compound or a salt thereof comprising a structure comprising a class-A GPCR-binding compound linked to a functional group that can bind to a Na+-water cluster binding site of the class-A GPCR. Also used is a method for producing a class-A GPCR antagonist, comprising the step of linking one compound with another compound that can bind to a Na+-water cluster binding site of the class-A GPCR.

Abstract: The present invention relates to a monoclonal antibody or antibody fragment thereof as a human IgG antibody including at least one lysine derivative in a constant region of the human IgG antibody; a modified antibody or antibody fragment thereof, wherein the lysine derivative is modified; a nucleic acid including a nucleotide sequence encoding the antibody or antibody fragment thereof; a vector including the nucleic acid; a transformed cell obtained by introducing the vector into a host cell; a method for producing the antibody or antibody fragment thereof; and a composition containing the antibody or antibody fragment thereof.

Abstract: In order to provide a membrane protein production method which does not require the step of solubilizing a membrane protein and which allows the membrane protein having an excellent quality to be obtained with a high yield, a method in accordance with an embodiment of the present invention includes: a step (a) of preparing a reaction solution for cell-free protein synthesis, the reaction solution containing (i) a template nucleic acid which encodes the membrane protein, (ii) a lipid, and (iii) a detergent which is contained at a concentration equal to or higher than a critical micelle concentration; and a step (b) of synthesizing the membrane protein while the concentration of the detergent in the reaction solution is maintained at a concentration equal to or higher than a critical micelle concentration.

Abstract: Obtained is: a method for efficiently producing a polypeptide containing a non-canonical amino acid; a method for incorporating a non-canonical amino acid into a polypeptide; a method for producing tRNA bound to a non-canonical amino acid; a a non-canonical amino acid incorporation system; a material for use in these methods; or the like.

Abstract: The present invention relates to a monoclonal antibody or antibody fragment thereof as a human IgG antibody including at least one lysine derivative in a constant region of the human IgG antibody; a modified antibody or antibody fragment thereof, wherein the lysine derivative is modified; a nucleic acid including a nucleotide sequence encoding the antibody or antibody fragment thereof; a vector including the nucleic acid; a transformed cell obtained by introducing the vector into a host cell; a method for producing the antibody or antibody fragment thereof; and a composition containing the antibody or antibody fragment thereof.

Abstract: The present invention relates to a monoclonal antibody or antibody fragment thereof as a human IgG antibody including at least one lysine derivative in a constant region of the human IgG antibody; a modified antibody or antibody fragment thereof, wherein the lysine derivative is modified; a nucleic acid including a nucleotide sequence encoding the antibody or antibody fragment thereof; a vector including the nucleic acid; a transformed cell obtained by introducing the vector into a host cell; a method for producing the antibody or antibody fragment thereof; and a composition containing the antibody or antibody fragment thereof.

Abstract: To provide a novel class-A GPCR antagonist, a production method therefor, or a novel compound that interacts with a Na+-water cluster binding site of a class-A GPCR. Used is a compound or a salt thereof comprising a structure comprising a class-A GPCR-binding compound linked to a functional group that can bind to a Na+-water cluster binding site of the class-A GPCR. Also used is a method for producing a class-A GPCR antagonist, comprising the step of linking one compound with another compound that can bind to a Na+-water cluster binding site of the class-A GPCR.

Abstract: The present invention provides a compound capable of being used as an active ingredient of an anti-cancer agent. To provide an anti-cancer agent with few side effects, an object of the present invention is to provide a compound capable of selectively inhibiting the target, i.e., DOCK1, or a salt thereof. The pyridinone compound of the present invention is represented by Formula (1): wherein R1 and R2 are the same or different, and each represents C1-6 alkyl; and R3 is a group represented by, for example, Formula (3) below: wherein R5 in the group represented by Formula (3) is hydrogen.

Abstract: In order to provide a membrane protein production method which does not require the step of solubilizing a membrane protein and which allows the membrane protein having an excellent quality to be obtained with a high yield, a method in accordance with an embodiment of the present invention includes: a step (a) of preparing a reaction solution for cell-free protein synthesis, the reaction solution containing (i) a template nucleic acid which encodes the membrane protein, (ii) a lipid, and (iii) a detergent which is contained at a concentration equal to or higher than a critical micelle concentration; and a step (b) of synthesizing the membrane protein while the concentration of the detergent in the reaction solution is maintained at a concentration equal to or higher than a critical micelle concentration.

Abstract: The present invention relates to a monoclonal antibody or antibody fragment thereof as a human IgG antibody including at least one lysine derivative in a constant region of the human IgG antibody; a modified antibody or antibody fragment thereof, wherein the lysine derivative is modified; a nucleic acid including a nucleotide sequence encoding the antibody or antibody fragment thereof; a vector including the nucleic acid; a transformed cell obtained by introducing the vector into a host cell; a method for producing the antibody or antibody fragment thereof; and a composition containing the antibody or antibody fragment thereof.

Abstract: The present invention provides a compound capable of being used as an active ingredient of an anti-cancer agent. To provide an anti-cancer agent with few side effects, an object of the present invention is to provide a compound capable of selectively inhibiting the target, i.e., DOCK1, or a salt thereof. The pyridinone compound of the present invention is represented by Formula (1): wherein R1 and R2 are the same or different, and each represents C1-6 alkyl; and R3 is a group represented by, for example, Formula (3) below: wherein R5 in the group represented by Formula (3) is hydrogen.

Abstract: An object of the present invention is to develop and provide a method for efficiently producing a nucleic acid aptamer, particularly, a DNA aptamer, having higher specificity and binding activity against a target substance than those of nucleic acid aptamers obtained by conventional methods. The present invention provides a transcribable or replicable nucleic acid aptamer comprising a natural nucleotide and a non-natural nucleotide having an artificial base-pairable artificial base. The present invention also provides a method for sequencing a non-natural nucleotide-containing single-stranded nucleic acid molecule selected from a single-stranded nucleic acid library.

Abstract: An object of the present invention is to develop and provide a method for efficiently and conveniently producing a nucleic acid aptamer, particularly, a DNA aptamer, having high specificity for and high binding activity against a target substance.

Abstract: An AdipoR activator for activating both AdipoR1 and AdipoR2 is provided. A compound represented by the following formula (1), wherein A is a substituted or unsubstituted aryl group or the like, Y1 is (CHR2)a— or the like, X is CH or N, R1 is a C1-7 alkyl group, m is an integer of 0-4, Y2 is *—O—CH2—CONH—, *—CONH—(CH2)b—CO— or the like, Z is a cyclic group, B may be a substituent of the cyclic group represented by Z, and n is an integer of 0-3.

Abstract: An object of the present invention is to develop and provide a method for efficiently producing a nucleic acid aptamer, particularly, a DNA aptamer, having higher specificity and binding activity against a target substance than those of nucleic acid aptamers obtained by conventional methods. The present invention provides a transcribable or replicable nucleic acid aptamer comprising a natural nucleotide and a non-natural nucleotide having an artificial base-pairable artificial base. The present invention also provides a method for sequencing a non-natural nucleotide-containing single-stranded nucleic acid molecule selected from a single-stranded nucleic acid library.

Abstract: An object of the present invention is to develop and provide a method for efficiently producing a nucleic acid aptamer, particularly, a DNA aptamer, having higher specificity and binding activity against a target substance than those of nucleic acid aptamers obtained by conventional methods. The present invention provides a transcribable or replicable nucleic acid aptamer comprising a natural nucleotide and a non-natural nucleotide having an artificial base-pairable artificial base. The present invention also provides a method for sequencing a non-natural nucleotide-containing single-stranded nucleic acid molecule selected from a single-stranded nucleic acid library.

Abstract: An object of the present invention is to develop and provide a method for efficiently and conveniently producing a nucleic acid aptamer, particularly, a DNA aptamer, having high specificity for and high binding activity against a target substance.

Abstract: An object of the present invention is to develop and provide a method for efficiently and conveniently producing a nucleic acid aptamer, particularly, a DNA aptamer, having high specificity for and high binding activity against a target substance.

Abstract: An AdipoR activator for activating both AdipoR1 and AdipoR2 is provided. A compound represented by the following formula (1), wherein A is a substituted or unsubstituted aryl group or the like, Y1 is (CHR2)a— or the like, X is CH or N, R1 is a C1-7 alkyl group, m is an integer of 0-4, Y2 is *—O—CH2—CONH—, *—CONH—(CH2)b—CO— or the like, Z is a cyclic group, B may be a substituent of the cyclic group represented by Z, and n is an integer of 0-3.

Abstract: The present invention provides a novel method of producing a recombinant bacterium for production of a non-natural protein, including: (1) expressing tRNA in a bacterium, which tRNA recognizes UAG codon; (2) expressing an aminoacyl-tRNA synthetase in the bacterium, which aminoacyl-tRNA synthetase acylates the tRNA with a non-natural amino acid or an ?-hydroxy acid; (3) (i) introducing a DNA construct into the bacterium, which DNA construct is for expressing, in the absence of a release factor for terminating translation at UAG codon, a function of at least one gene selected from the group consisting of genes each of which loses its function when a gene that codes for the release factor is defective and/or introducing an alteration into said at least one gene in a chromosome of the bacterium, which alteration is for expressing the function of said at least one gene in the absence of the release factor; and (4) causing the gene that codes for the release factor in the bacterium to be defective.