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.
Aminoacid variation plot for (a) Group 1 and (b) Group 2 alleles. Chicken antigen binding sites (ABS) are indicated with the letter ‘g’, whereas positively selected sites (PSS) are indicated with black triangles. In the Group 1 plot there are no aminoacids between the positions 24–26, because these alleles were 212-basepair long; hence had a nine-basepair deletion at this location.
