Figure 1.
Ribbon diagram of the three-dimensional structure of ribonuclease A.45 The three residues most important for catalysis, His12, His119, and Lys41, are marked in red.
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.