BLASTp outfmt 6输出格式的解读

跑了blastp发现输出格式没有标题：

截屏2020-09-12 下午3.45.49.png

查找了一下，列名分别为：

1. qseqid query (e.g., unknown gene) sequence id
2. sseqid subject (e.g., reference genome) sequence id
3. pident percentage of identical matches
4. length alignment length (sequence overlap)
5. mismatch number of mismatches
6. gapopen number of gap openings
7. qstart start of alignment in query
8. qend end of alignment in query
9. sstart start of alignment in subject
10. send end of alignment in subject
11. evalue expect value
12. bitscore bit score

参考资料：http://www.metagenomics.wiki/tools/blast/blastn-output-format-6