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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Curr Opin Biotechnol. 2010 Mar 30;21(3):292–297. doi: 10.1016/j.copbio.2010.03.003

Figure 1.

Figure 1

Simplified stoichiometries for the homolytic and heterolytic activaton of H2, ligands are omitted. In H2ases, the initial heterolytic step is followed by oxidation of the resulting hydride.