Dear biostars community,
I encountered a problem when running a blast on my computer. I downladed nr database from ncbi ftp (all the nr.**.tar.gz files). then, I unzip each of the 131 files. All the file are in /root/nr directory. I add this directory to $BLASTDB with
And run :
blastn -query '/root/tmp.fasta' -db nr
But i have the following error message :
BLAST Database error: No alias or index file found for nucleotide database [nr] in search path [/root:/root/nr:]
I have the nr.pal file, taxdb.btd, taxdb.bti and all file for each subset of the database.
Any recommandation ?
Thanks in advance for your help
my mistake, blastn is for nucleotide and nr is proteic sequence :(