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) T and O profiles for the quaternary structure of human hemoglobin. Status of the (b) α and (c) β chains was determined for these chains as independent structural units. The α and β chains are marked on profile (a) with turquoise frames, and shown in (b) and (c), respectively.
