发明名称 |
Nucleic acid purification |
摘要 |
A process for purifying plasmid DNA from a nucleic acid containing sample comprising plasmid DNA and contaminants, which process comprises a step of contaminant removal, comprising: (a) treating the sample to form a nucleic acid solution having a concentration of monovalent cations; (b) contacting the nucleic acid solution with an ultrafiltration membrane having a molecular weight exclusion limit of at least 30 kDa under conditions in which substantially no gel-layer forms and in which the concentration of monovalent cations is sufficiently high for a time sufficient to remove substantially all RNA and form a retentate containing plasmid DNA; and (c) collecting the retentate.
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申请公布号 |
US7811807(B2) |
申请公布日期 |
2010.10.12 |
申请号 |
US20020106824 |
申请日期 |
2002.03.27 |
申请人 |
FERMENTAS UAB |
发明人 |
KVEDERAS RIMANTAS;SIKSNIUTE ASTA;MARKAUSKAS ALYIMANTAS |
分类号 |
C12N1/08;C07H21/04;C12N15/10;C12Q1/68;G01N33/00 |
主分类号 |
C12N1/08 |
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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