Question: Blast p error with database definition
gravatar for olivier.claude
2.1 years ago by
olivier.claude30 wrote:


I am trying to run a blast with my datas.

I installed Blast+ package from the tool shed.

I downloaded two different files from the ncbi:

-swissprot (from the FASTA section) -> called swissprot-15-11-25

-swissprot with the different files ( .phr, .pin . pnd ... ) -> called swiprot.00

I have defined in the blastdb_p.loc as follow:

swissprot-15-11-25 <tab> swissprot-15-11-25 <tab> /home/olivier/galaxy/blastDB/swissprot-15-11-25
swissprot.00 <tab> swissprot-ncbi.00 <tab> /home/olivier/galaxy/blastDB/swissprot.00

I Tried to run the blast with the etwo different databases and it gave me the error code :

Fatal error: Exit code 2 ()
BLAST Database error: No alias or index file found for protein database [/home/olivier/galaxy/blastDB/swissprot.00] in search path [/home/olivier/galaxy/database/job_working_directory/000/380::]

I runned the command line :

formatdb -i swissprot-ncbi-15-11-25 -p F -n "swissprot-ncbi-15-11-25" -v 2000

but it didn't changed anything.


Who did i missed?

thank you.



error blast+ database • 575 views
ADD COMMENTlink modified 2.1 years ago • written 2.1 years ago by olivier.claude30
gravatar for Jennifer Hillman Jackson
2.1 years ago by
United States
Jennifer Hillman Jackson23k wrote:


The indexes should be downloaded from here: The fasta file is not needed and should not be referenced in the loc file. However, you might want a copy that matches the index file anyway. Once downloaded, make sure these are fully uncompressed. Then make sure that the last column in the file includes a path that ends with a basename that is an exact match for the first part of the index names. Your loc seems to be missing a line in that format (although it is a bit difficult to tell from the other entries exactly which directory contains the index files). You only need one line per database.

For example, if the indexes are in here and the basename is swissprot:


The correct loc entry path would be:


You can use whatever you want for the first two columns - these are labels. The first must be one "word" (no spaces), the second can include multiple words separated by spaces (but no internal tabs).

See the top of the loc file example for the full details. This covers the same information but in more detail. After making changes, restart the server.

If for some reason you do want to create your own, note that the formatdb line-command is incorrect for protein indexes. Specifically, "-p F" indicates that the input file is in nucleotide format, not protein. 

Most likely, the loc file path change is enough. Adjust my example to the actual path to the indexes in your directory structure.

Thanks, Jen, Galaxy team

ADD COMMENTlink written 2.1 years ago by Jennifer Hillman Jackson23k
gravatar for olivier.claude
2.1 years ago by
olivier.claude30 wrote:

it works !


ADD COMMENTlink written 2.1 years ago by olivier.claude30

Super, very glad you have this going! Jen

ADD REPLYlink written 2.1 years ago by Jennifer Hillman Jackson23k
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