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.
Proposed transmembrane Cu binding sites of CcoA. A hypothetical model of R. capsulatus CcoA illustrating its putative trigonal (Met233, His261, and Met265) or tetrahedral (with additional Met237 or Met227) Cu-ligating amino acid residues is shown. For the sake of simplicity, only TM7 and TM8 of CcoA are shown. The Cys247 and His249 residues that are located on the periplasmic loop between TM7 and TM8 and might be involved in early steps of Cu recognition are also shown.
