摘要:
A method for screening presence or absence of a variation in a region of a nucleic acid which comprises the steps of (a) preparing a sample containing a test nucleic acid corresponding to the region, (b) preparing a probe having a base sequence fully complementary to a normal sequence of the region, and a plurality of probes each having at least one base not complementary to the normal sequence, (c) fixing the probes in separate regions on a surface of a substrate to prepare a DNA array substrate, (d) reacting the test nucleic acid with the probes on the DNA array substrate, (e) measuring signals in each region where the signals are originated from respective hybrids formed between the test nucleic acid and one of the probes, and (f) calling variation in the test nucleic acid using a pattern of total signals of all regions.
摘要:
The present invention provide pharmaceutical compositions containing a pyrylium compound, a thiopyrylium compound, a selenopyrylium compound or a telluropyrylium compound or a salt of any of the aforesaid compounds as active ingredient. The compounds are selectively absorbed by cancer cells or similar growths in the human or animal body and can be used to bring about distruction of the unwanted growth on irradiation with light of wavelength 600 nm to 1000 nm. The invention also provides a method for the treatment of the human or animal body which comprises administering the compound to a human or animal and irradiating a locus in said animal where the compound is absorbed in order to kill cells at that locus. It further comprises the use of the aforesaid compound for the making of a medicament for use in the treatment of cancer in humans and animals.
摘要:
A stain for a nucleic acid characterized by containing, as an effective component, a pyrylium salt compound having Y as a negative portion and a pyrylium ring or a pyrylium-similar ring, wherein the ring is comprised of X selected from O, S, Se and Te as a hetero atom and has substituents R.sup.1, R.sup.2 and R.sup.3, wherein each of R.sup.1 and R.sup.2 is independently a hydrogen atom, sulfonate group, amino group, substituted or unsubstituted aryl group, etc., R.sup.3 is -A or -L-A, L is -L.sup.1 -, -L.sup.2 -L.sup.3 - or -L.sup.4 -L.sup.5 -L.sup.6 -, and each of L.sup.1 to L.sup.6 is independently --(CH.dbd.CH)--, a divalent group derived from the substituted or unsubstituted aryl group, etc., A is a substituted or unsubstituted aryl group, etc., and Y.sup.- is an anion. A method for detecting a nucleic acid which comprises the steps of reacting a sample with the stain, and then detecting, by an optical means, the double-strand nucleic acid stained with the stain in the case that the double-strand nucleic acid is contained in the sample.
摘要:
A method for detecting a nucleic acid hybrid comprises steps of adding a nucleic acid probe into a sample solution containing a targeted nucleic acid, and detecting a double helical structure of a hybrid formed between the probe and the targeted nucleic acid, wherein the step for detecting the double helical structure comprises incorporating, into the sample solution, two or more kinds of reagents which are capable of causing a detectable change by interaction therebetween through the double helical structure and measuring the change caused by the interaction of the reagents; and at least one of the two or more kinds of reagents is joined to the probe.
摘要:
A method for forming an oligonucleotide comprises the steps of synthesizing a pair of oligonucleotides, one oligonucleotide having a base sequence portion comlementary to that of the other at a part of the terminal end region thereof; binding the pair of oligonucleotides at the complementary base sequence portions; and polymerizing nucleic acid bases onto the resulting pair of oligonuceotides. The method may further comprise the step of separating the oligonucleotides thus obtained into single strands.
摘要:
A stain for a nucleic acid characterized by containing, as an effective component, a pyrylium salt compound having Y as a negative portion and a pyrylium ring or a pyrylium-similar ring, wherein the ring is comprised of X selected from O, S, Se and Te as a hetero atom and has substituents R.sup.1, R.sup.2 and R.sup.3, wherein each of R.sup.1 and R.sup.2 is independently a hydrogen atom, sulfonate group, amino group, substituted or unsubstituted aryl group, etc., R.sup.3 is -A or -L-A, L is -L.sup.1 -, -L.sup.2 -L.sup.3 - or -L.sup.4 -L.sup.5 -L.sup.6 -, and each of L.sup.1 to L.sup.6 is independently --(CH.dbd.CH)--, a divalent group derived from the substituted or unsubstituted aryl group, etc., A is a substituted or unsubstituted aryl group, etc., and Y.sup.- is an anion. A method for detecting a nucleic acid which comprises the steps of reacting a sample with the stain, and then detecting, by an optical means, the double-strand nucleic acid stained with the stain in the case that the double-strand nucleic acid is contained in the sample.
摘要:
A method for forming a proteoliposome comprises incorporating into a liposome a membrane protein combined with a carrier. Further, a method for preparing a giant proteoliposome, comprises freezing and thawing an alkali metal salt solution containing a membrane protein and a lipid, and subsequently dialyzing against a second salt solution or a buffer solution having a lower osmotic pressure than that of said alkali metal salt solution. Further, a method for forming a proteoliposome, comprises by freezing and thawing an alkali metal salt solution containing a membrane protein combined with a carrier and a lipid.
摘要:
A method for forming a proteoliposome comprises incorporating into a liposome a membrane protein combined with a carrier. Further, a method for preparing a giant proteoliposome, comprises freezing and thawing an alkali metal salt solution containing a membrane protein and a lipid, and subsequently dialyzing against a second salt solution or a buffer solution having a lower osmotic pressure than that of said alkali metal salt solution. Further, a method for forming a proteoliposome, comprises freezing and thawing an alkali metal salt solution containing a membrane protein combined with a carrier and a lipid.
摘要:
An object of the present invention is to prepare DNA, RNA, and a protein from one cell and to provide a convenient preparation method with high reproducibility. To prepare a protein, DNA, and RNA from a cell, nuclear and cytoplasmic separation is performed, and a protein, DNA, and RNA are then extracted.
摘要:
Colon cancer cells in a sample are screened by analyzing the amount of expression of at least 2 or more genes or products thereof selected from the group of genes listed in Tables 1 and 30. As compared to conventional method, patients having colon cancer can be detected with higher accuracy. Colon cancer cells in stool are also screened by analyzing expression of genes selected from the group of genes listed in Table 37.