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小WAY

铁虫 (初入文坛)

[求助] 导入重组质粒细菌老是长不出来是什么原因呢

xl-biue大肠杆菌,导入的是p3xflag-cmv14质粒,连接片段300bp左右,分别涂了低浓度和高浓度的,24小时只有一块板子有几个单克隆,求高手指点
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刘仁坤2013

新虫 (小有名气)

【答案】应助回帖

一定要用xl-biue大肠杆菌吗?可不可以换成DH5α菌呢?
2楼2013-04-25 16:20:17
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stevenshi021

新虫 (小有名气)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
小WAY: 金币+2, 有帮助 2013-04-27 20:38:29
silicare: 金币+10, BioEPI+1, 应助指数+1, 鼓励新虫发帖交流 2013-04-28 09:58:58
Several things can result that:
1 the ligation efficiency (add ligation control that you did before)
2 transform efficiency (plasmid as transform control)
3 the gene products is toxic to the host cell (shift to other host cell, such as JM109, DH5ALPHA)
GOOD LUCK
3楼2013-04-25 23:44:02
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小WAY

铁虫 (初入文坛)

引用回帖:
2楼: Originally posted by 刘仁坤2013 at 2013-04-25 16:20:17
一定要用xl-biue大肠杆菌吗?可不可以换成DH5α菌呢?

实验室大家都用blue,您用DH5还好么?
4楼2013-04-27 20:41:26
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