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.
(A) Electron micrograph of negatively stained filaments formed spontaneously in sucrose gradient fractions containing proteins A2 and B1 after salt-induced dissociation from 40S hnRNP complexes. (B) STEM of filaments dialyzed 10 h against STM buffer to remove sucrose. In both preparations a small amount of globular A2 and B1 aggregates can be seen often in contact with the filaments. Bar, 100 nm.
