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.
Comparison of the procapsid reconstructions of P1′247 (A and C) and P147 (B and D) showing the ring-like densities on the 3-fold axes between the 5-fold vertices in the former and their complete absence in the latter. The P4 protein densities and the central density were excised from the P1′247 map for clarity in the comparison. The isosurfaces were generated at a level of 1.5 σ.
