Abstract: A liquid discharging device includes a plurality of liquid discharge sections. Each liquid discharge section includes a reservoir, a nozzle that discharges a solution supplied from the reservoir, and discharge energy generating means that generates energy to discharge the solution from the nozzle. The number of the liquid discharge sections corresponds to the number of probe types to be formed. The nozzles are two-dimensionally arranged. Using this liquid discharging device, probe liquids are discharged from the corresponding reservoirs onto a solid-phase substrate to form a predetermined two-dimensional probe array of high-purity probes on the substrate. This process exhibits high reproducibility and processability, and the resulting probe array has high array density.

Abstract: 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.

Abstract: The present invention provides a combination of genes useful for information which can be used for the prediction of postoperative recurrence of gastric cancer and the acquisition of the information, a probe detecting these genes and a primer set for PCR, a method for detecting these genes using the primer and the primer set and a method for obtaining the information which can be used for the prediction of recurrence. Information useful for the prediction of postoperative recurrence can be obtained by determining the presence or absence of gastric cancer cells which show a possibility of postoperative recurrence in a sample such as an peritoneal wash collected from a patient by detecting a particular gene specific to gastric cancer cells or a gene product thereof.

Abstract: 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.

Abstract: An infectious etiologic agent detection probe set which detects an infectious etiologic agent gene, includes a plurality of kinds of probes including oligonucleotide having base sequences selected from each of a plurality of groups selected from a first group including base sequences of SEQ ID Nos. 1 to 14 and complementary sequences thereof, a second group including base sequences of SEQ ID Nos. 15 to 24 and complementary sequences thereof, a third group including base sequences of SEQ ID Nos. 25 to 36 and complementary sequences thereof, a fourth group including base sequences of SEQ ID Nos. 37 to 47 and complementary sequences thereof, a fifth group including base sequences of SEQ ID Nos. 48 to 57 and complementary sequences thereof, a sixth group including base sequences of SEQ ID Nos. 58 to 68 and complementary sequences thereof, a seventh group including base sequences of SEQ ID Nos. 69 to 77 and complementary sequences thereof, an eighth group including base sequences of SEQ ID Nos.

Abstract: Provided is a method of spotting a probe densely and efficiently on a surface of a solid support. A liquid containing a probe is attached to a solid support as droplets to form spots containing the probe on the solid support by an ink jet method.

Abstract: A liquid discharging device includes a plurality of liquid discharge sections. Each liquid discharge section includes a reservoir, a nozzle that discharges a solution supplied from the reservoir, and discharge energy generating means that generates energy to discharge the solution from the nozzle. The number of the liquid discharge sections corresponds to the number of probe types to be formed. The nozzles are two-dimensionally arranged. Using this liquid discharging device, probe liquids are discharged from the corresponding reservoirs onto a solid-phase substrate to form a predetermined two-dimensional probe array of high-purity probes on the substrate. This process exhibits high reproducibility and processability, and the resulting probe array has high array density.

Abstract: A liquid discharging device includes a plurality of liquid discharge sections. Each liquid discharge section includes a reservoir, a nozzle that discharges a solution supplied from the reservoir, and discharge energy generating means that generates energy to discharge the solution from the nozzle. The number of the liquid discharge sections corresponds to the number of probe types to be formed. The nozzles are two-dimensionally arranged. Using this liquid discharging device, probe liquids are discharged from the corresponding reservoirs onto a solid-phase substrate to form a predetermined two-dimensional probe array of high-purity probes on the substrate. This process exhibits high reproducibility and processability, and the resulting probe array has high array density.

Abstract: A flat plate-shaped probe carrier for carrying probes such as single stranded DNAs, proteins, etc., which are reactive specifically with target substances comprises a plurality of ring bodies arranged substantially in parallel and the external space among the ring bodies is filled with a filler such that the openings of the ring bodies are oriented to the surface of the probe carrier. Each ring body has a region for fixing a probe adapted to be bonded specifically to a target substance on its inner wall. The probe carrier is produced by bundling a plurality of hollow tubular members in parallel, then filling the external space among the bundled hollow members with a filler, and cutting the bundle along a plane intersecting the axial direction of the tubular members. Probes are fixed to the fixing region before or after filling the external space.

Abstract: 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.

Abstract: 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.

Abstract: A probe array comprises a plurality of probes immobilized at a plurality of matrix sites on a substrate for capturing a target substance, wherein the probes are sequentially synthesized at the matrix sites on the substrate until a desired length, the probes are different from each other, and a labeling compound is coupled to each terminus of the probes in a final step of the synthesis. The probe array of the invention allows sensitive and reliable detection of the target substance. A method of evaluating the amount of the fully synthesized probes at respective matrix sites is also provided.

Abstract: A method for identifying an unknown base sequence present in a target single-stranded nucleic acid utilizing a probe array in which single-stranded nucleic acid probes are arranged as isolated spots on a substrate, where each probe has a base sequence complementary to one of the plural base sequences expected to be the unknown base sequence, and a fluorescence pattern of a sample on the probe array is compared with template patterns to identify the base sequence of the sample.

Abstract: The present invention provides a combination of genes useful for information which can be used for the prediction of postoperative recurrence of gastric cancer and the acquisition of the information, a probe detecting these genes and a primer set for PCR, a method for detecting these genes using the primer and the primer set and a method for obtaining the information which can be used for the prediction of recurrence. Information useful for the prediction of postoperative recurrence can be obtained by determining the presence or absence of gastric cancer cells which show a possibility of postoperative recurrence in a sample such as an peritoneal wash collected from a patient by detecting a particular gene specific to gastric cancer cells or a gene product thereof.

Abstract: A method for identifying an unknown base sequence present in a target single-stranded nucleic acid utilizing a probe array in which single-stranded nucleic acid probes are arranged as isolated spots on a substrate, where each probe has a base sequence complementary to one of the plural base sequences expected to be the unknown base sequence, and a fluorescence pattern of a sample on the probe array is compared with template patterns to identify the base sequence of the sample.

Abstract: 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.

Abstract: A flat plate-shaped probe carrier for carrying probes such as single stranded DNAs, proteins, etc., which are reactive specifically with target substances comprises a plurality of ring bodies arranged substantially in parallel and the external space among the ring bodies is filled with a filler such that the openings of the ring bodies are oriented to the surface of the probe carrier. Each ring body has a region for fixing a probe adapted to be bonded specifically to a target substance on its inner wall. The probe carrier is produced by bundling a plurality of hollow tubular members in parallel, then filling the external space among the bundled hollow members with a filler, and cutting the bundle along a plane intersecting the axial direction of the tubular members. Probes are fixed to the fixing region before or after filling the external space.

Abstract: A process for rapid and simple assay of nucleic acid on the basis of competitive hybridization using a DNA microarray that comprises a step of hybridizing a labeled nucleic acid other than the target nucleic acid with one of the immobilized probes on the substrate, where the labeled nucleic acid has a known sequence complementary to the probe and can bind thereto specifically.

Abstract: A probe carrier is provided on which probes capable of specifically binding to a target substance are immobilized as a plurality of spots in known locations on the carrier, characterized in that the probe carrier has two or more separated areas, wherein in each area probes of the same kind are immobilized as one or more spots and probes of different kinds are not immobilized and in at least one area probes of the same kind are immobilized as two or more spots. This probe carrier allows simple and convenient measurement of the content of a target substance even when inexpensive line sensor, area sensor and the like are used.

Abstract: Provided is a method of spotting a probe densely and efficiently on a surface of a solid support. A liquid containing a probe is attached to a solid support as droplets to form spots containing the probe on the solid support by an ink jet method.