BLAST database index file
When attempting to run protein BLAST locally against the nr database (downloaded from https://www.ncbi.nlm.nih.gov/public/ ) I get an error stating that I need an index file. Do I need to run makeblastdb on this file before I can use it? Should I download the nr database elsewhere? Thanks!
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You can download it here ftp://ftp.ncbi.nlm.nih.gov/blast/db/ pre-formatted. You can also use the
update_blastdb.pltool.Thank you. Realized it's a firewall issue not allowing me to access the ftp site which is why I searched for the database elsewhere.
You need to download
all nr*files from the database link posted by @gb. Uncompress and store them in one folder.What you downloaded from the link you posted in original post are just fasta formatted files for
nr.Thank you. I initially tried downloading from the ftp site but it fails to open. I'll try the tool you mentioned.
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