发明名称 |
CYTOCHROME P-450HFLA PROTEIN, DNA SEQUENCE THEREOF AND PRODUCTION THEREOF |
摘要 |
PURPOSE:To make it possible to obtain the title protein in large quantities without containing a human-derived other protein by culturing a recombinant host cell in a culture medium. CONSTITUTION:A human fetal lever is purified by homogenizing in a buffer to afford a cytochrome P-450HFLa protein (A) having about 51000 molecular weight. Then a rabbit, etc., is immunized with the ingredient A to give an anti-P-450HFLa antibody (B). On the other hand, a fetal lever is treated with guanidinethiocyanate to extract total RNA, which is then chromatographed to afford mRNA (C). Then the ingredient C is translated to a protein and subjected to screening with the ingredient B to provide the desired mRNA fraction (D). Then the ingredient D is synthesized to a single-stranded cDNA, which is then treated with ligase to give a double-stranded cDNA (E). Then a recombinant DNA obtained by adding a linker to the ingredient E and introducing into a plasmid is introduced into escherichia coli and the resultant transformed strain is cultured in a culture medium and DNA sequence such as DNA expressed by formula I is expressed to produce cytochrome P-450HFLa protein containing an amino acid sequence expressed by formula II. |
申请公布号 |
JPH02200187(A) |
申请公布日期 |
1990.08.08 |
申请号 |
JP19890020384 |
申请日期 |
1989.01.30 |
申请人 |
MOCHIDA PHARMACEUT CO LTD |
发明人 |
KAMATAKI TETSUYA;KITADA KOICHI;KOMORI MASAYUKI |
分类号 |
G01N33/573;C07H21/04;C07K14/00;C12N1/21;C12N9/02;C12N15/12;C12N15/53;C12P21/02;G01N33/574 |
主分类号 |
G01N33/573 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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