GenBank序列修订版历史查询工具

NCBI提供了一个序列修订版历史查询的工具。用序列的GI Number或Accession Number,通过这个工具就能查到该序列的历史记录,最早提交的时间,修订的时间等等。非常的棒。

GenBank序列修订版历史查询工具的网址为:http://www.ncbi.nlm.nih.gov/entrez/sutils/girevhist.cgi

例如搜索U46667的修订版记录,可以看到U46667最早提交到NCBI的时间是1998-1-1,12:30 AM。以前的GI Number是2734632。另外,在旧的记录中没有对应的序列版本号,这是原因这个旧的记录的更新时间是在1998年8月7号,而Accession.Verion的系统是在1999年2月份才开始启用的(关于这部分,详细请看:序列的标识符:GI number和Accession.Version)。

就是说从1999年2月份开始,NCBI/EMBL/DDBJ所有序列的版本号都是从1开始的,即使这个序列在之前已经更新了。

另外,如果你在查看GenBank的最新版本记录,在Comment区域可以找到该序列原先的GI Number号,例如U46667,在U46667的Comment区域可以看到一行提示:COMMENT On Jun 2, 1998 this sequence version replaced gi:2734632。说明这个序列原先的GI号和更新的时间。(关于GenBank的详细格式说明请看:http://www.liucheng.name/?p=368

类似的,如果你查看的是旧的版本记录,就会相应地在Comment区域提示[WARNING],说明这个序列已经更新了。

原文链接:http://www.ncbi.nlm.nih.gov/Sitemap/sequencerevisionhistory.html

1 回复
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