Select BLAST program
Choose a search set
Choose one of the BLAST databases listed below.
Enter (a) query sequence(s)
Enter one or more queries in the text box or use the browse button to upload a file from your local disk. The file may contain a single sequence or a list of sequences. In both cases, the data must be in FASTA format.
The file should be a plain-text FASTA (.fasta, .fna, .fa) file. In other words, it cannot have formatting as is the case with MS Word (.doc, .docx) or Rich Text Format (.rtf). It cannot be greater than 2MB in size. Don't forget to press the Upload button before attempting to submit your BLAST.