Protein-Protein BLAST. More information: https://www.ncbi.nlm.nih.gov/books/NBK279684/table/appendices.T.blastp_application_options/.
blastp -query query.fa -subject subject.fa -evalue 1e-9
blastp -task blastp-fast -query query.fa -subject subject.fa
blastp -query query.fa -subject subject.fa -outfmt '6 qseqid qlen qstart qend sseqid slen sstart send bitscore evalue pident' -out output.tsv
blastp -query query.fa -db blast_database_name -num_threads 16 -max_target_seqs 10
blastp -query query.fa -db nr -remote
-help
for detailed help):blastp -h