摘要:
Disclosed is an antioxidant which can exhibit a higher antioxidant ability than known antioxidative peptides. The antioxidant according to the present invention comprises mimosine and/or a mimosine-containing pcptide(s). The mimosine-containing peptide is a peptide which comprises at least one mimosine residue in its amino acid sequence. Mimosine has stronger antioxidant potency than known antioxidative tripeptides even when used as it is alone, and therefore is useful as an antioxidant. In addition, the antioxidant action of a peptide can be increased by introducing mimosine thereinto, thereby obtaining a peptide with higher antioxidant potency than the original one.
摘要:
A substrate for biochips with which immobilization is easy, which does not exhibit self-fluorescence, which is easy to manufacture, and which is excellent in flatness and surface precision, is disclosed. A substrate having a substrate body of the biochip, which is made of a metal, and a carbon layer having functional groups formed on the metal substrate body is used as a substrate for biochips. Since the substrate body of the substrate for biochips is made of a metal, the substrate is not only easy to manufacture, but also free from cracking and chipping, so that it allows easy handling, and high flatness and surface precision can be attained. Therefore, the problem that the optical system is hard to focus when detecting fluorescence does not occur. Moreover, since the substrate body is made of a metal, it does not emit fluorescence by itself. In addition, since the carbon layer has functional groups such as amino groups, biologically relevant substances can be easily immobilized.
摘要:
Disclosed is a peptide-immobilized substrate for measuring a target protein, with which the peptide can have a structure required for being recognized by the target protein, with which the accurate loading amount of the peptide can be attained, and by which a trace amount of the target protein may be measured accurately and simply. The peptide-immobilized substrate for measuring a target protein according to the present invention comprises a chemicarlly synthesized peptide having an expected spatial structure or having a binding ability with the target protein, which peptide can bind with the target protein and is immobilized on the substrate.
摘要:
A peptide-immobilized baseboard for assaying a target protein whereby a structure necessary for the recognition by the target protein can be achieved, loading can be made in an accurate amount and the target protein in a microamount can be accurately and conveniently assayed. This peptide-immobilized baseboard for assaying a target protein comprises a chemically synthesized peptide, which is capable of binding to a definite stereostructure or the target protein and can bind to the target protein, immobilized on a baseboard.
摘要:
A substrate for biochips which has a high probe loading amounts and a uniform immobilization density, and which further has a high detection sensitivity and a high reproducibility by preventing a non-specific adsorption of proteins, when used as a substrate for biochips for immobilizing probes composed of biologically relevant substances such as proteins and nucleic acids, is disclosed. Amino groups can be bound to the surface of the substrate uniformly, at a high density and stably by covalently immobilizing an amino group-containing polymer on the surface of the substrate. The probe immobilization rate is high and immobilizing density was uniform by immobilizing a probe composed of a biologically relevant substance such as a protein or nucleic acid by utilizing the amino groups. Further, detection sensitivity and reproducibility are high by inhibiting non-specific adsorption of proteins.
摘要:
A substrate for biochips with which spots are not diffused and cross-contamination due to contacts between adjacent spots does not occur, as well as a biochip using the substrate, is disclosed. A substrate for biochips with which spots are not diffused and cross-contamination due to contacts between adjacent spots does not occur, by forming a plurality of recesses for immobilizing biologically relevant substances, as well as a biochip using the substrate, was provided. It was discovered also that the desired binding of target molecules in a test sample occurs at a detectable level in solution systems even if the volume of each recess is extremely small as small as 1 nL to 10 nL.
摘要:
Disclosed is a peptide-immobilized bead library from which peptides are more likely to be obtained as candidates of useful substances such as pharmaceuticals, and with which the amino acid sequence bound to a target substance can be more easily analyzed, compared to known OPOB libraries. The peptide-immobilized bead library has a structure of General Formula [I].
In General Formula [I], X is an amino acid residue; n is an integer of 4 to 8; Y is a cyclization structure; A is a spacer structure; B is a specific cleavage site-containing structure; and the 4 to 8 amino acid residues of X are each independently randomly selected.
摘要:
Disclosed are a novel compound having a higher angiogenic effect than that of a known peptide-based angiogenic agent, and an angiogenic agent including the novel compound. The compound is represented by the following formula [I]: Cyclic(Cys-O2Oc-SVV(F/Y)GLRG-Cys)-NH 2 (wherein the number of oxyethylene units, represented by 020c, is within the range of 2 to 6), the following formula [II]: Cyclic(O 2 Oc-SVV(F/Y)GLRQ)-NH 2 [II] (wherein the number of oxyethylene units, represented by O2Oc, is within the range of 2 to 6), or the following formula [III]: O 2 Oc-SVV(F/Y)GLR-NH 2 [III] (wherein the number of oxyethylene units, represented by 020c, is within the range of 2 to 6).