[BioPython] GO term annotation from fasta?

[Alan Wardroper]

I have a large db of est clones and associated assemblies I'd like to 
(roughly) annotate using GO terms to let the wetlab people concentrate 
on potentially interesting clones. Looking for some advice on where to 
start to do this with biopython. My feeling is something like generate 
fasta files from my mysql db, blast the sequences against genbank, parse 
out the top hit, and use those IDs to grab GO terms, but I'm not sure 
how best to proceed. Is there a better way to do this in biopython?  I 
can't see any way to do blastx or tblastx from bp, with qblast only 
supporting blastn and blastp.
Thanks for any pointers.

-- 
--------------------------
Alan Wardroper
alan at wardroper.org