Hello i was wondering if someone could help me in building a matrix like this:

(i have two sets of uniprot accession numberes from two different species)

i want to pull out all the fasta sequences using these accession numbers and do a pairwise comparison of each sequence of both the species. The matrix values are the sequence identity (or E values like in BLAST output)...

I would appreciate any help/comment from community members.

Thank you

nar