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    • 3. 发明专利
    • Cyclic double-chain dna having pl promoter
    • 具有PL促进剂的循环双链DNA
    • JPS6167490A
    • 1986-04-07
    • JP18779284
    • 1984-09-07
    • Central Glass Co LtdHodogaya Chem Co LtdNippon Soda Co LtdNissan Chem Ind LtdSagami Chem Res CenterToyo Soda Mfg Co Ltd
    • NUMAO OSANORITAKAHASHI HIROKOTAKAHARA YOSHIYUKI
    • C12N15/09C12N1/20C12N9/04C12N15/73C12R1/185C12R1/19C12R1/40
    • C12N15/73
    • PURPOSE:The titled DNA containing a specific PL promoter operator, a region coding metapyrocatechase, a temperature-sensitive region, and a region coding ampicillin-resistance, and exhibiting metapyrocatechase. CONSTITUTION:A fragment containing cIts containing a temperature-sensitive gene region separated from pHT1 plasmid is linked and cyclized with a frag ment containing the sequence from the EcoRI terminal to the BamHI site and containing the region coding ampicillinresistance and the replication initiation point in Escherichia coli, containing HpaI site between said BamHI site and the BglII terminal, and containing the PL promoter operator region of lambda phage between the BglII terminal and the HpaI site. A plasmid PHT2 is constructed by this process. A C-230 fragment containing the region coding metapyrocatechase and separated from PYT3 plasmid is inserted into PHT2 to obtain PHT3A which is a cyclic double-chain DNA.
    • 目的:含有特异性PL启动子操纵子的标题DNA,编码甲基焦磷酸酶的区域,温度敏感区域和编码氨苄青霉素抗性的区域,并表现出二甲基卡拉胶酶。 构成:含有含有从pHT1质粒分离的温度敏感基因区的含有片段的片段被连接并用含有EcoRI末端的序列的BamHI位点并含有编码氨苄青霉素抗性的区域和在大肠杆菌中的复制起始点的区段环化 ,在所述BamHI位点和BglII末端之间含有HpaI位点,并且在BglII末端和HpaI位点之间含有λ噬菌体的PL启动子操纵子区域。 通过该方法构建质粒PHT2。 将含有编码分子切割酶的区域的C-230片段插入到PHT2中,得到作为环状双链DNA的PHT3A。
    • 4. 发明专利
    • Novel plasmid
    • 新的PLASMID
    • JPS59166085A
    • 1984-09-19
    • JP3843583
    • 1983-03-09
    • Yakult Honsha Co Ltd
    • SAKO TOMOYUKISAWAKI SAEKOTSUCHIDA NOBUO
    • C12N15/09C07H21/04C12N15/73
    • C12N15/73
    • PURPOSE:To obtain a novel plasmid widely usable as a vector, by scissoring DNA of lambda phage variant having cI gene susceptible to temperature with restriction enzyme EcoR I to give D fraction, scissoring further it with restriction enzyme Tag I to give a fraction, integrating this fraction into Escherichia coli plasmid pBR322. CONSTITUTION:DNA of lambda phage variant having c I gene susceptible to temperature is scissored with restriction enzyme EcoR I to give D fraction having 7.4kb length. This D fraction is further scissored with restriction enzyme Tag I , to give a fraction having 1.23kb length. This fraction is integrated into a scission cite of Escherichia coli plasmid pBR322 with restriction enzyme C1a I to give a novel plasmid. Various kinds of genes are integrated into siccision cite of restriction enzyme BblII existing in the kb1.23 fraction part integrated into this plasmid, so that development of gene is extremely developed.
    • 目的:为了获得广泛用作载体的新型质粒,通过用限制性内切酶EcoR I对具有易感温度的cI基因的λ噬菌体变体的DNA进行剪切,得到D级分,进一步用限制酶标记I进行剪切,得到一部分 该级分转入大肠杆菌质粒pBR322。 构成:用限制酶EcoR I剪切具有对温度敏感的c I基因的λ噬菌体变体的DNA,得到具有7.4kb长度的D级分。 用限制酶标签I进一步剪切该D级分,得到1.23kb长度的级分。 将该级分与限制酶C1a I整合到大肠杆菌质粒pBR322的切断引物中,得到新的质粒。 将各种基因整合到存在于该质粒中的kb1.23部分部分中的限制酶BblII的切割引物中,使得基因的发育非常发达。