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长锋

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[交流] 【求助/交流】cccDNA准确定义 已有6人参与

RT:
cccDNA准确定义
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qian159lin

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就是细菌中的质粒
8楼2010-04-12 12:31:17
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eileenjn

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★ ★
1949stone(金币+2): 2010-04-10 15:45
长锋(金币+2): 2010-04-12 10:45
共价、闭合、环状DNA  
covalent,closed,circled
2楼2010-04-10 15:29:24
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长锋

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引用回帖:
Originally posted by eileenjn at 2010-04-10 15:29:24:
共价、闭合、环状DNA  
covalent,closed,circled

你这太笼统了,能不能给点具体的说法?
3楼2010-04-10 15:37:07
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竹林细雨

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350784478(金币+1):这个是老外弄出来的,只有老外能解释的最清楚了,感谢提供。 2010-04-10 21:48
长锋(金币+1): 2010-04-12 10:46
cccDNA (covalently closed circular DNA) is a special DNA structure that arises during the propagation of some viruses in the cell nucleus and may remain permanently there. It is a double-stranded DNA that originates in a linear form that is ligated by means of DNA ligase to a covalently closed ring. In most cases, transcription of viral DNA can occur from the circular form only. The cccDNA of viruses is also known as episomal DNA or occasionally as a minichromosome.
4楼2010-04-10 17:37:52
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