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.
Positions of exons 2 and 7 in secondary structure of the ASL protein. The helices are in yellow, sheets in green, and turns in cyan; exons 2 and 7 are depicted in magenta. Amino acids are colored based on their chemical properties with aspartic and glutamic acid in red, arginines and lysines in blue, and aromatic amino acids in green.
