blastp:tldr:5466c

This command is using the BLASTP program to perform a protein-protein sequence comparison. Here is a breakdown of the command:

• blastp: This is the command for the BLASTP program, which is used for comparing protein sequences.
• -query ${query-fa}: This option specifies the input file containing the query protein sequences to be searched against the database. The ${query-fa} likely refers to a variable that holds the file path or name of the query file.
• -db ${nr}: This option specifies the database to search against. ${nr} is probably a variable that stores the name or path of the NR (non-redundant) protein database. The NR database contains a large collection of non-redundant protein sequences.
• -remote: This option specifies to perform the search remotely. It means that the search will be carried out on a remote BLAST server rather than on the local machine. This requires an internet connection to access the BLAST server.

Overall, this command is performing a BLASTP search using a query file (specified by ${query-fa}) against the NR protein database (specified by ${nr}) remotely. The results of the search will be obtained from the remote BLAST server.