估计阅读时长: 2 分钟https://mzkit.org/ 代谢组文章整个坎坷的发表经历中,大家可能都会遇到的一个老大难问题就是我们有时候会需要从原始数据中得到物质注释结果的二级质谱图数据。对于熟悉xcms程序包的同学,获取二级质谱图可能会比较容易:无非就是加载原始数据,然后按照m/z和rt找到对应的二级scan就好了。但是,这种方法会需要编写脚本来完成。 Order by Date Name Attachments download • 33 kB • 541 click 2021年8月4日[278][MS_MS] FTMS […]
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[…] 在前面写了一篇文章来介绍我们可以如何通过KEGG的BHR评分来注释直系同源。在KEGG数据库的同源注释算法中,BHR的核心思想是“双向最佳命中”。它比简单的单向BLAST搜索(例如,只看你的基因A在数据库里的最佳匹配是基因B)更为严格和可靠。在基因注释中,这种方法可以有效减少因基因家族扩张、结构域保守等原因导致的假阳性注释,从而更准确地识别直系同源基因,而直系同源基因通常具有相同的功能。在今天重新翻看了下KAAS的帮助文档之后,发现KAAS系统中更新了下面的Assignment score计算公式: […]
不常看到, 没有多余矫饰的表达。敬意。
[…] 在前面写了一篇文章来介绍我们可以如何通过KEGG的BHR评分来注释直系同源。在今天重新翻看了下KAAS的帮助文档之后,发现KAAS系统中更新了下面的Assignment score计算公式: […]
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