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.
Light absorption difference (dithionite-reduced minus air-oxidized) spectra of E. faecalis membranes (3 mg of protein per ml). (A) Membranes from cells grown in the presence of 8 μM hemin; (B) membranes from cells grown in the absence of added hemin. The vertical bar indicates the absorption scale. Difference spectra obtained after oxidation by potassium ferricyanide were identical to those obtained by air oxidation.
