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linkv8

银虫 (正式写手)

[求助] 求助大肠宿主

各位亲们,小弟最近实验受阻,眼看马上就要毕业,心中甚是焦虑啊!!!!!

现在实验想尝试大肠杆菌C41(DE3),想好心人儿不吝施舍一些,我可以和您用别的来交换的,谢谢啊,太谢谢啦!!!!!
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PI4K

新虫 (初入文坛)

【答案】应助回帖

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linkv8: 金币+5, ★★★很有帮助 2014-05-26 19:34:45
1. BL21 is different from BL21 DE3, which has lac control to prevent leakage before IPTG induction.
2. Try use pET17 or earlier version and pMal-c5x.
3. Cell: C41 or rosetta Gammii 2
4. For expression: proetein-pET17 in C41. using very riched media,
prepare 10ul overnight culture and add to 500ml media.
start your growth on Friday at room temperature or even low temp.
harvest you pellets on Monday.
For growth under 4C, 1 week.
DON'T ADD ANY IPTG and NO inductioin.

The whole idea is to use the lac leakage to expression the protein with proper fold.

Good luck
13楼2014-05-26 00:31:41
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huangrui1988

铜虫 (小有名气)


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感谢参与,应助指数 +1
myprayer: 金币+1, 赠人玫瑰手有余香,分子生物期待你更多精彩。 2014-05-22 13:30:32
你说说实验现象,有的时候是或者不用变菌株呢。
2楼2014-05-21 18:59:26
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snoopyzxx

木虫 (著名写手)

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感谢参与,应助指数 +1
myprayer: 金币+1, 赠人玫瑰手有余香,分子生物期待你更多精彩。 2014-05-22 13:30:41
linkv8: 金币+8, ★★★很有帮助 2014-05-26 19:37:55
找到了吗?我这里有。
VX:19192310212;公众号:生物技术与IVD
3楼2014-05-21 20:53:45
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linkv8

银虫 (正式写手)

引用回帖:
3楼: Originally posted by snoopyzxx at 2014-05-21 20:53:45
找到了吗?我这里有。

太好了,我现在没有找到呢,您有什么需要的吗?我看我们这里有没有
4楼2014-05-22 16:11:56
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