Fasta output
name, description, and length (between parentheses), general information about the hit.
The scores calculated at the various stages of the comparison - initn, init1 and opt scores.
z-score, the score normalized by sequence length
expectation value E(), how many hits we expect to find by chance with such a score, while comparing this query to this database. It is important to keep in mind that the E() value does not represent a measure of similarity between the two sequences!