摘要:
The present invention provides a single strand polynucleotide sequence comprising a target gene, a complementary strand nucleic acid sequence, and a component sequence.
摘要:
This present invention provides a vector for expression and secretion of a polypeptide by directly joining a DNA sequence coding for a signal peptide to a DNA sequence coding for the desired polypeptide, the vector containing the DNA sequence coding for the signal peptide, a vector for expression and secretion of the desired polypeptide as defined above and further having incorporated therein the DNA sequence coding for the desired polypeptide, a microorganism transformed by the secretion vector, and a process for producing the desired polypeptide by growing the microorganism.
摘要:
An etching solution having an etch rate of 2 Å/minute or greater for a film having a relative dielectric constant of 8 or higher (a High-k film, and whose ratio of the etch rate of a thermal oxide (THOX) film to that of a High-k film is ([THOX etch rate]/[High-k film etch rate]) is 50 or less.
摘要:
An object is to effectively preparing a fluorinated compound by developing a catalyst which is effective in the fluorination of a halogenated alkane or alkene with hydrogen fluoride by a gas phase fluorination or addition of hydrogen fluoride. To this end, a catalyst which comprises a least one element selected from the group consisting of Ti, V, Zr, Mo, Ge, Sn and Pb, and alumina, aluminum fluoride or partially fluorinated alumina is used. This catalyst is prepared by an impregnation method to support the above element on alumina and the like, or a precipitation method in which the catalyst is co-precipitated from a solution containing an aluminum compound and a compound of the above element.