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.
Negative stain electron microscopy. A, negative stain electron microscopy of purified FhuA (left), pb5 (middle), and FhuA-pb5 complex (right). The insets are their corresponding averages of the major classes. Scale bar, 50 nm; inset base line, 20 nm. B, FhuA and pb5 proteins are identified on the FhuA-pb5 complex.
