Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Ratio of easy, medium and hard targets in the human and E. coli proteomes. Two-domain query sequences are not included as they are characterized as easy if one of the domains is identified as easy. The sequences of length smaller than 30 are also not included as they have a higher chance of aligning to a template by chance.
