Better assignment of BLAST results to sequences

[Tom Goddard]

From Tom's ticket, #14976:

Besides these 3 new options I also want the loaded structures to be associated with their sequences in the sequence alignment. Currently when using the BLAST GUI the structures get associated automatically and that causes them to be associated with the wrong sequence alignment lines, probably because their are identical sequences in the alignment. So structure 4xv9_A should associate with the alignment sequence named 4xv9_A. In my current kinase example with 211 sequence (4xv9 chain A sequcence, 1e-100 evalue cutoff) almost every structure is associated with a different sequence in the alignment.

[pett]

Just FYI, the typical logic flow would be to supply auto_associate=False in your new_alignment() call, then make a series of associate() calls on the alignment to create the associations you want. I think the doc string for associate() pretty thoroughly describes the arguments you need.

[Zach Pearson]

Thank you!