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haiyanqian

木虫 (小有名气)

[求助] 同源模建的一些问题

我想问一下,同源模建时是如何确定我的结构保守区,还有就是根据什么来定义helix的长度。看文献都是直接那张序列比对图就出来了。在用Clustal进行序列比对时,那个下面有“:”和“."分别是表示什么意思呀?哪位知道的帮忙回答一下吧,非常感谢!
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度_T

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【答案】应助回帖

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haiyanqian: 金币+5, ★★★很有帮助 2012-07-30 22:16:01
clustal 的help里面有关于clustal系列版本的好几篇参考文献,比如说关于clustalX的Thompson,J.D., Gibson,T.J., Plewniak,F., Jeanmougin,F. and Higgins,D.G. (1997) The ClustalX windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research, 25:4876-4882. 里边就有提到:The colouring of
residues takes place according to physicochemical criteria
highlighting conserved positions in the sequences. A consensus
line is also displayed below the alignment with the
following symbols denoting the degree of conservation
observed in each column: ‘*’ (identical residues in all
sequences), ‘:’ (highly conserved column), ‘.’ (weakly
conserved column).(摘自原文)去看看吧。
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2楼2012-07-30 18:42:20
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haiyanqian

木虫 (小有名气)

非常感谢!
3楼2012-07-30 22:17:00
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