An official website of the United States government
Here's how you know
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.
Cryo-EM analysis of the RNA pyramid. (a) A representative raw cryo-EM micrograph with individual RNA pyramid nanoparticles in white square boxes. (b) Representative projections and corresponding class averages of the 3D model. (c) The final 3D cryo-EM map in four views.