| 查看: 1459 | 回复: 3 | ||
| 本帖产生 1 个 翻译EPI ,点击这里进行查看 | ||
[求助]
分子基因方面的问题,多谢
|
||
|
今天翻译了一篇文献,有一段话,“For overexpression of the cgR_2128 gene in C. glutamicum, the cgR_2128 gene fragment amplified by PCR with primer 1 and 2 (Supplementary Table S1) was inserted into the NdeI site of a pCRB214 plasmid that is a derivative of an Escherichia coli–C. glutamicum shuttle vector pCRB22 [18] and that contains an expression cassette composed of a tac promoter, an NdeI site and an rrnB T1 terminator. C. glutamicum cells were transformed by electroporation [19]. Markerless gene disruption was carried out through a two-step homologous recombination using the suicide vector pCRA725 [8]. For disruption of cgR_2128, the nucleotide fragments (ca. 0.9 kb) of 50- and 30-regions of cgR_2128 amplified by PCR with primer set 3–4 and primer set 5–6, respectively (Table S1) were fused bycrossover PCR technique. The resulting amplicon was ligated to pCR725, which was subsequently transferred to C. glutamicum. Gene disruption was confirmed by PCR and DNA sequencing.” 我是分子方面的新人,刚开始学习。 这段话大概的意思懂了,然后有几个点不太明白,求助一下,希望大家帮帮忙。 1."用自杀载体同源重组进行无标记的基因敲除"具体是什么意思? 2."crossover PCR technique"是什么技术? 3."The resulting amplicon was ligated to pCR725, which was subsequently transferred to C. glutamicum. "之前已经有步骤敲除基因了,为什么还说"将扩增子连接到质粒上,转入菌中" 一头雾水的,希望大家指点一下,谢谢谢谢。 |
» 猜你喜欢
博士自荐
已经有6人回复
博士推荐
已经有4人回复
求环氧树脂研发1名
已经有10人回复
280求调剂
已经有5人回复
什么是人一生最重要的?
已经有10人回复
面上可以超过30页吧?
已经有13人回复
为什么中国大学工科教授们水了那么多所谓的顶会顶刊,但还是做不出宇树机器人?
已经有13人回复
版面费该交吗
已经有17人回复
【博士招生】太原理工大学2026化工博士
已经有8人回复
武汉一心一译
捐助贵宾 (著名写手)
- 翻译EPI: 502
- 应助: 8 (幼儿园)
- 金币: 2283.1
- 散金: 5914
- 红花: 32
- 帖子: 1665
- 在线: 321.9小时
- 虫号: 3587652
- 注册: 2014-12-10
- 性别: GG
- 专业: 高分子合成化学
【答案】应助回帖
商家已经主动声明此回帖可能含有宣传内容
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
百态人生: 金币+15, 翻译EPI+1, ★有帮助 2016-07-03 19:17:56
爱与雨下: 金币+1 2016-07-04 21:38:21
百态人生: 金币+15, 翻译EPI+1, ★有帮助 2016-07-03 19:17:56
爱与雨下: 金币+1 2016-07-04 21:38:21
|
Markerless gene disruption was carried out through a two-step homologous recombination using the suicide vector pCRA725 “利用自杀载体pCRA725,进行两步式基因同源重组,从而实现无痕基因敲除” crossover PCR technique PCR(polymerase chain reaction) technique 实际上是一种“基因扩增技术”。从字面理解就是“聚合酶连反应”技术 前面加上“crossover”交叉,也就是“聚合酶连反应”技术 The resulting amplicon was ligated to pCR725, which was subsequently transferred to C. glutamicum. 将产生的扩增产物捆绑在pCR725(自杀载体)上,然后将其转移到C. glutamicum |
2楼2016-07-03 13:05:57
|
中文我翻译的也差不多,字面意思一样。就是不太明白它的具体方法,求指点。 还有问题2,前面文中的“聚合酶链式反应”直接说“by PCR”,但这个是“by crossover PCR”,所以我觉得这不是普通的pcr,可能是其他的? 发自小木虫Android客户端 |
3楼2016-07-03 16:36:36
武汉一心一译
捐助贵宾 (著名写手)
- 翻译EPI: 502
- 应助: 8 (幼儿园)
- 金币: 2283.1
- 散金: 5914
- 红花: 32
- 帖子: 1665
- 在线: 321.9小时
- 虫号: 3587652
- 注册: 2014-12-10
- 性别: GG
- 专业: 高分子合成化学
4楼2016-07-03 22:25:21













回复此楼