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.
The external morphology of these Staphylococcal nuclease crystals is reproducibly asymmetrical, one end terminating with 4 rhombic faces and the other with 4 triangles. This makes visible much of their internal organization: the handed, asymmetric nature and orientation of the protein chain in the asymmetric unit, related at the next level by the handed, directional 4-fold screw axis of space group P41.
