Entering edit mode
8.1 years ago
Prasad
★
1.6k
hi,
I have used standalone blast to search few of transcript sequences against NCBI NR database. For few transcripts (~88) i have found strange output as
c93530_g1_i1 gi|281206185 0.00 0 0 0 0 0 0 0 4e-19 94.4
c93530_g1_i1 gi|281206185 0.00 0 0 0 0 0 0 0 1e-17 90.1
c93530_g1_i1 gi|281206185 0.00 0 0 0 0 0 0 0 4e-17 88.6
how come everything else is 0 except evalue and score. command used,
blastx -query transcript.fasta -db /nr_db_oct_16/nr -evalue 0.0000000001 -outfmt 6 -out blast_out -num_threads 20 -max_target_seqs 1
I did online blast for the same transcript against NR getting proper result. Any idea what might be the problem?
Thanks
Which version of blast are you using? Do you get the same results for this query if you use another output format?
ncbi-blast-2.2.30. I haven't tried in other format. let me try that
It was released over 2 years ago. You should see if you can reproduce the problem with the latest release.
i did the blast again with these transcripts, now getting proper results. now just wondering what could be the reason. was this because of a glitch in server?