如何找到可以通过FASTA而不是BLAST找到的查询，反之亦然? [英] How to find a query that you can find with FASTA but not with BLAST and vice versa?

问题描述

我需要找到一个或多个序列，这些序列应该在Fasta中给出结果(匹配)，而在Blast中则不能，反之亦然.

I need to find a sequence or sequences that should give results (hits) in Fasta but not in Blast, or vice versa.

我有点迷茫.

搜索此序列时应该寻找什么?

What should I look for while searching this sequence(s)?

推荐答案

当您说通过BLAST或FASTA查找序列时，我假设您的意思是在数据库中找到匹配项?

When you say find a sequence by BLAST or FASTA I assume you mean find a hit in the database?

我认为FASTA可能比BLAST更好地发现异种序列之间的比对，但BLAST更好地比对相似序列.

I think FASTA might be better at finding alignments between dissimilar sequences than BLAST but BLAST is better at aligning similar sequences.

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