36 results about "Chromosome segregation" patented technology

Substituted urea compounds useful in the treatment of diseases and C1-3alkyleneOR3 conditions related to DNA damage or lesions in DNA replication are disclosed formula (I), wherein X1 is null, —O—, —S—, —CH2—, or —N(R1)—; X2 is —O—, . -£>. -, or —N(R1)—,—. . Y xs 0 or S; or =y represents two hydrogen atoms attached to a common carbon atom, —W is selected from the group consisting of heteroaryl, aryl, heterocycloalkyl, cycloalkyl, and C1-6alkyl substituted with a heteroaryl. or aryl group; R6 is —C≡C—R7 or heteroaryl; R8, R9, and R10, independently, are selected from the group consisting of halo, optionally substituted C1-6alkyl, C2-6alkenyl, C2-6alkynyl, OCP3, CF3, NO2, CN, NC, N(R3)2, OR3, CO2R3, C(O)N (R3)2, C(O)R3, N(R1)COR3, N(R1)C(O)OR3, N(R8)C(O)OR3, N(R1)C(O)C1-3alkyleneC(O)R3, N(R1)C(O)C1 -3alkyleneC(O)OR3, N(R1)C(O)C1-3alkyleneOR3, N(R1)C(O)C1-3alkyleneNHC(O)OR3, N(R1)C(O)C1-3alkyleneSO2.NR3, C1-3alkyleneOR3, and SR3; Methods of making the compounds, and their use as therapeutic agents, for example, in treating cancer and other diseases characterized by defects in DNA replication, chromosome segregation, or cell division also are disclosed.

The present invention discloses aryl and heteroaryl substituted urea compounds useful in the treatment of diseases and disorders associated with DNA damage or impaired DNA replication. The invention also discloses methods of making the compounds, and the use of the compounds as therapeutic agents for the treatment of, for example, cancer and other diseases characterized by defects in DNA replication, chromosome segregation or cell division.

The invention discloses an orychophragmus violaceus chromosome acetic acid orcein banding method for solving the problems that the traditional chromosome separation banding method is not suitable for small chromosome plants such as orychophragmus violaceus, the procedure is complex, the operating conditions are not easily mastered and the banding success rate is low. Cell chromosomes can be easily separated by adopting acetic acid orcein for dyeing and combining a chromosome preparation method, the chromosomes have good shape after being lightly pressed and are clear in banding display, and identification of target chromosomes is facilitated. The plant chromosome banding method is very simple and convenient and easy in operation, is particularly suitable for banding pattern analysis of plants with small chromosomes, and is clear in displayed banding patterns, high in success rate and convenient for genetic analysis of plants.

The invention discloses a molecular marker and a method for identifying hybrids between Chinese cabbage and Ethiopian mustard and tracking the chromosomal segregation of A10 and C09 offspring materials, belonging to the field of plant genetics and breeding. This marker is a pair of co-dominant molecular markers, which can be used to identify the authenticity of hybrids between Chinese cabbage and Ethiopian mustard, and can also be used to identify and track self-crossed offspring, backcrossed offspring, chromosome addition lines, and recombination of distant hybrids Chromosome segregation of A10 and C09 in segregating populations and plants.

The invention discloses a molecular marker and a method for identifying hybrids between Chinese cabbage and Ethiopian mustard and tracking the chromosomal separation of A03 and C03 offspring materials, belonging to the field of plant genetics and breeding. This marker is a pair of co-dominant molecular markers, which can be used to identify the authenticity of hybrids between Chinese cabbage and Ethiopian mustard, and can also be used to identify and track self-crossed offspring, backcrossed offspring, chromosome addition lines, and recombination of distant hybrids Chromosomal segregation of A03 and C03 in segregating populations and plants.

The invention discloses a method for separating chromosomes in plant cells by using fluorescence in-situ hybridization. The method for separating the chromosomes in the plant cells comprises the following steps of: the fluorescence in-situ hybridization is carried out on the plant cells, the single chromosome of which is picked; by comparing with the corresponding fluorescence in-situ hybridization map of the normal plant cells, the picked single chromosome is defined to be which chromosome, thus separating a purpose chromosome. The method has the advantages of being capable of separating thechromosomes with similar types and specific bands, widening the separating range of the chromosomes, avoiding the unnecessary chemical processing in the manufacture process of the chromosome specimens, preventing the DNA of the chromosomes from being damaged, guaranteeing the completeness of the separated DNA. A microclone library of the whole chromosomes of the wheat can be obtained by applying the invention.

The present invention is to provide meiosis-specific novel kinetochore protein Sgo1 (shugoshin) derived from fission yeast Schizosaccharomyces pombe, and a homologue or paralogue thereof having a regulatory activity of chromosome segregation; and DNAs encoding them; as a factor ensuring the retention of unidirection and cohesion in sister centromere at meiosis I in cooperation with cohesin. To elucidate the proteins protecting Rec8 during anaphase, the present inventor screened in fission yeast genes for a gene that inhibits mitotic growth and prevents sister chromatid from the separation at anaphase, when co-expressed with Rec8. In this approach, meiosis-specific protein Sgo1 that protects (Shugo) centromeric Rec8 from the degradation at anaphase I was indentified. Further, a budding yeast Sgo1 homologue and a fission yeast mitotic paralogue Sgo2 were identified.

The invention provides a method for improving the in-vitro utilization rate of sheep oocyte, which comprises the following steps of: washing poor quality BCB-oocyte obtained by chromosome segregation for 2 to 3 times by using mature culture solution which contains 50 to 100mu Mol / L PDE3 inhibitor milrinone and culturing for 6 to 9 hours, and washing the BCB-oocyte for 2 to 3 times by using matureculture solution which does not contain the milrinone and culturing for 24 hours; removing granular cells around the oocyte, transferring the oocyte to cleaning solution, picking the oocyte and removing a first polar body, and counting the removal rate of the polar body, namely maturation rate; and activating the oocyte from which the first polar body is removed for 4 to 5 minutes by using 5mu Mol / L ionomycin and washing the oocyte for 1 to 3 times by using the cleaning solution, activating the oocyte for 2 to 3 hours by using 2mMol / L 6-methyl aminopurine which is balanced in a CO2 box 2 to 3 hours ago, washing the oocyte for 3 or 4 times by using the culture solution which is balanced in the CO2 box 2 hours ago, culturing the oocyte in the culture solution for 48 hours, counting cleavage rate, and counting blastocyst rate after 168 hours. In addition, the BCB-oocyte obtained by the chromosome segregation is washed by the mature culture solution for 2 to 3 times and cultured for 24 hours to be directly utilized. The method has great practical value for the in-vitro utilization of the sheep oocyte.

The invention is directed to isolated genomic polynucleotide fragments that encode human SNARE YKT6, human glucokinase, human adipocyte enhancer binding protein (AEBP1) and DNA directed 50 kD regulatory subunit (POLD2), vectors and hosts containing these fragments and fragments hybridizing to noncoding regions as well as antisense oligonucleotides to these fragments. The invention is further directed to methods of using these fragments to obtain SNARE YKT6, human glucokinase, AEBP1 protein and POLD2 and to diagnose, treat, prevent and / or ameliorate a pathological disorder.

The invention discloses a molecular marker and a method for identifying hybrids between Chinese cabbage and Ethiopian mustard and tracking the chromosomal separation of A02 and C02 offspring materials, belonging to the field of plant genetics and breeding. This marker is a pair of co-dominant molecular markers, which can be used to identify the authenticity of hybrids between Chinese cabbage and Ethiopian mustard, and can also be used to identify and track self-crossed offspring, backcrossed offspring, chromosome addition lines, and recombination of distant hybrids Chromosomal segregation of A02 and C02 in segregating populations and plants.

The invention discloses a molecular marker and a method for identifying hybrids between Chinese cabbage and Ethiopian mustard and tracking the chromosomal separation of A03 and C03 offspring materials, belonging to the field of plant genetics and breeding. This marker is a pair of co-dominant molecular markers, which can be used to identify the authenticity of hybrids between Chinese cabbage and Ethiopian mustard, and can also be used to identify and track self-crossed offspring, backcrossed offspring, chromosome addition lines, and recombination of distant hybrids Chromosomal segregation of A03 and C03 in segregating populations and plants.