摘要:
The present invention provides PCR primers with which sexing of bovine embryos can be easily attained and provides a practical, rapid and reliable method for determining the sex of bovine embryos using these primers. The methods for determining the sex of the bovine embryos are characterized by discriminating PCR products which are obtained by amplifying specific DNA sequences by PCR with pairs of male-specific and gender-neutral primers. These primers are derived from DNAs which specifically hybridize to the bovine male genome and from DNAs which gender-neutrally hybridize to both bovine male and female genomes.
摘要:
The present invention provides PCR primers with which sexing of bovine embryos can be easily attained and provides a practical, rapid and reliable method for determining the sex of bovine embryos using these primers. The methods for determining the sex of the bovine embryos are characterized by discriminating PCR products which are obtained by amplifying specific DNA sequences by PCR with pairs of male-specific and gender-neutral primers. These primers are derived from DNAs which specifically hybridize to the bovine male genome and from DNAs which gender-neutrally hybridize to both bovine male and female genomes.
摘要:
A DNA which encodes a fused protein containing an insulin precursor of the overexpression secretion type for producing transgenic insulin, and a method of producing insulin with the use of this DNA.
摘要:
The invention relates to a DNA that enables co-expression of a protein disulfide isomerase and a polypeptide having disulfide bonds. The invention further relates to a process of producing polypeptides using the DNA and a process of enhancing the efficiency of formation of correct disulfide bond in an expression system of a gene recombinant polypeptide having disulfide bonds.
摘要:
This invention relates to a DNA comprising a nucleotide sequence encoding a fusion protein, wherein the fusion protein comprises: a sequence of signal peptide for Bacillus cell wall protein (CWP); a tag sequence for separation and purification of the fusion protein; a linker sequence; a sequence for chemical or enzymatic cleavage; and an exogenous polypeptide sequence, the sequences being linked in order, the signal peptide, tag and linker being optional sequences; and wherein the nucleotide sequence encoding a fusion protein is ligated to 3′-end of a nucleic acid sequence comprising a Bacillus promoter region; to a vector comprising the DNA; to a bacterium belonging to the genus Bacillus comprising the vector; and to a process for preparation of a useful polypeptide by culture of the bacterium.
摘要:
This invention relates to a DNA encoding a fusion protein of formula (I) [Y]-[X1]-[B-chain]-[X2]-[Linker]-[X3]-[A-chain] (I) wherein Y is a leader peptide sequence for the expression and secretion of the protein, comprising at least one amino acid residue; X1 is an amino acid sequence which is cleavable enzymatically or chemically; B-chain is the amino acid sequence of insulin B chain; X2 is an amino acid sequence which is cleavable enzymatically; Linker is a linker sequence comprising at least one amino acid residue; X3 is an amino acid sequence which is cleavable enzymatically; and A- chain is the amino acid sequence of insulin A chain, and to a method for producing insulin using an expression system containing the DNA in high efficiency and high yield.
摘要:
A keel-tipped stylus has a constricted terminal portion which is mounted on narrow shoulders which is in turn mounted on wide shoulders. The keel-tipped stylus is formed from a V-shaped stylus which engages into a spiral groove formed in an abrasive lapping disc. As the lapping disc rotates, the V-shaped stylus runs along the groove to lap the constricted terminal portion together with the narrow and wide shoulders.
摘要:
The present invention provides a cleaning apparatus capable of removing foreign matters attached to a tip of a probe effectively without impairing the durability of the probe. The cleaning apparatus for the probe comprises a base plate having a rough surface and a surface layer formed to conform to and cover the rough surface for the purpose of providing a polishing surface for the probe and having lower hardness than hardness of the probe tip of the probe.
摘要:
An electronic safekeeping method, including displaying a contractual coverage of a contract at a covenantee terminal connected to a contractor server storing information of the contractual coverage; inputting contract agreement information representing whether agreeing to the contractual coverage or not, at the covenantee terminal; inputting safekeeping agreement information representing whether agreeing to a safekeeping of the contractual coverage or not, at the covenantee terminal, when the contract agreement information agreeing to the contractual coverage is inputted; requesting a contract safekeeping server to store the contractual coverage, when the safekeeping agreement information agreeing to the safekeeping is inputted; issuing a contract ID for identifying the contract at the contract safekeeping server in accordance with the request; and transferring the issued contract ID from the contract safekeeping server to the covenantee terminal and the contractor server.
摘要:
An embodiment of a method for testing an integrated circuit comprises a first step for determining at least one of a group selected from whether or not the chuck top receiving the integrated circuit exists near a probe card which transmits and receives electrical signals to and from the integrated circuit, whether or not the integrated circuit is under testing, and whether or not the probe card has a given temperature, and a second step for adjusting power for heating to be supplied to a heating element provided in the probe card according to the determination result in the first step.