摘要:
The present invention provides catalytic RNA molecules having cis or trans aminoacylation activity. The catalytic RNA molecules having cis aminoacylation activity comprise a catalytic domain and an aminoacylation domain. The catalytic RNA molecules having trans aminoacylation activity only have the catalytic domain. A method is provided for constructing and screening of these molecules. These molecules are suitable for aminoacylating with specific amino acids.
摘要:
A new artificial translation-synthesis system of adding tRNAs binding special amino acids to the in vitro translation system and synthesizing peptides with special amino acids incorporated thereto according to a dual genetic code table and an artificial codon box division.
摘要:
A method for screening a non-standard peptide compound in the peptide library that binds to the target substance, comprising the steps: (i) preparing a non-standard peptide library wherein a special (non-standard) amino acid is randomly incorporated into the peptide sequence by a cell-free (in vitro) translation system comprising a tRNA acylated by a special (non-standard) amino acid; (ii) bringing the obtained peptide library in contact with a target substance; and (iii) selecting a non-standard peptide that binds to the target substance as an active peptide.
摘要:
The objective is to provide a novel process for synthesizing a cyclic peptide compound. It is also an objective to provide a novel cyclic peptide compound. The novel process for synthesizing a cyclic peptide compound comprises the steps of: (1) translationally synthesizing a non-cyclic peptide compound having in a molecule a functional group 1 and a functional group 2, which are a pair of functional groups capable of reacting to form a bond, and (2) cyclizing the non-cyclic peptide compound by the reaction of the functional groups 1 and 2 to form a bond. The novel cyclic peptide compound can be synthesized by the process.
摘要:
An object of the invention is to provide a peptide having a stabilized secondary structure.The present invention provides a peptide having a secondary structure stabilized by a crosslinked structure and containing at least one combination of a special amino acid of the formula (I): (wherein, (A) represents a single bond or a linking group having, in the main chain thereof, from 1 to 10 atoms; (B) represents a group containing at least one π bond; (C) represents a hydrogen atom or an alkyl group which may be substituted with a substituent; and X represents a group substitutable by a substitution reaction with a sulfanyl group) and an amino acid having, in the side chain thereof, a sulfanyl group; and having the crosslinked structure formed through a thioether bond between the side chain of the special amino acid residue and the sulfanyl group.
摘要:
An object of the present invention is to provide novel ribozyme systems capable of catalyzing tRNA acetylation using various carboxylic acids as acyl donors and uses thereof. Disclosed is a ribozyme catalyzing tRNA acetylation having a structure consisting of the RNA sequence represented by: (formula 1) P1-Z1Z2Z3Z4(N1)1(N1)2 . . . (N1)p-P2-(N2)1(N2)2 . . . (N2)q Y1Y2Y3-(N3)1(N3)2-N4GGN wherein (N1)1-(N1)p each independently represent any monoribonucleotide of U, C, A, and G; p represents 3 or 4; (N2)1-(N2)q each independently represent any monoribonucleotide of U, C, A, and G; q represents 5 or 6; (N3)1-(N3)2 each independently represent any monoribonucleotide of U, C, A, and G; N4 represents any monoribonucleotide of U, C, A, and G; Z1-Z4 each independently represent C or G; Y1-Y3 each independently represent C or G; N represents a monoribonucleotide complementary to A or G; and P1 and P2 represent a domain consisting of any RNA sequence capable of having a stem-loop structure.
摘要:
The present invention provides a control agent that is extremely effective in controlling bacterial diseases. The quorum sensing inhibitor and bacterial disease control agent for agricultural and horticultural use of the present invention contain a pyrimidinone compound represented by General Formula (1): wherein R1 represents a C1-5 alkyl group or a phenyl group, and R2 represents a hydrogen atom or a C1-5 alkyl group, provided that R1 cannot be a methyl group when R2 represents a hydrogen atom.
摘要:
An object of the present invention is to provide novel ribozyme systems capable of catalyzing tRNA acylation using various carboxylic acids as acyl donors and uses thereof.Disclosed is a ribozyme catalyzing tRNA acylation having a structure consisting of the RNA sequence represented by (formula 1): P1-Z1Z2Z3Z4(N1)1(N1)2 . . . (N1)p—P2-(N2)1(N2)2 . . . (N2)qY1Y2Y3(N3)1(N3)2N4GGN wherein (N1)1-(N1)p each independently represent any monoribonucleotide of U, C, A and G; p represents 3 or 4; (N2)1-(N2)q each independently represent any monoribonucleotide of U, C, A and G; q represents 5 or 6; (N3)1-(N3)2 each independently represent any monoribonucleotide of U, C, A and G; N4 represents any monoribonucleotide of U, C, A and G; Z1-Z4 each independently represent C or G; Y1-Y3 each independently represent C or G; N represents a monoribonucleotide complementary to A or G; and P1 and P2 represent a domain consisting of any RNA sequence capable of having a stem-loop structure.
摘要:
The present invention provides a biofilm stripping agent for removing biofilms already formed. The biofilm stripping agent of the present invention contains, as an active ingredient, an amide compound or salt thereof denoted by General Formula (1), wherein R is a C1-11 alkyl group, and Q is a substituent denoted by the following Formulas (Q1), (Q2) or (Q3), wherein, in Formula (Q1), n is an integer ranging from 0 to 4; in Formula (Q2), R1 is a C1-4 alkyl group, and R2 is a hydroxyl group or carbamoyl group; in Formula (Q3), R3 is a hydrogen atom, hydroxyl group or carbamoyl group.