Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2003 by Universidad Católica de Valparaíso -- Chile
Vol. 6 No. 1, Issue of April 15, 2003

Figure 2. Multiple sequence alignment of a diverse range of COX sequences and sequences from PDB structures.

TMH: Transmembrane helices are denoted by Roman numerals I to XIII and colored in blue type. Positions of the six histidine residues (H), proton pump and residues crucial to electron transport are depicted and highlighted in red.

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