. Author manuscript; available in PMC: 2015 Jan 21.

Published in final edited form as: Chem Soc Rev. 2014 Jan 21;43(2):676–706. doi: 10.1039/c3cs60249d

Table 3.

Reactions catalyzed by the pterin-containing molybdenum enzymes. Potentials are with respect to standard hydrogen electrode at pH ~ 7 and 25 °C

Enzymes	Redox reactions	Potential (mV)	Ref.
Perchlorate reductase	ClO₄⁻ + 2H⁺ + 2e⁻ → ClO₃⁻ + H₂O	+1200	327
		+788	328
Chlorate reductase	ClO₃⁻ + 2H⁺ + 2e⁻ → ClO₂⁻ + H₂O	+709	328
Selenate reductase	SeO₄²⁻ + 2H⁺ + 2e⁻ → SeO₃²⁻ + H₂O	+895	329
		+475
Aldehyde oxidase	CH₃COO⁻ + 3H⁺ + 2e⁻ → CH₃CHO + H₂O	+580	330
Arsenate reductase	H₃AsO₄ + 2H⁺ + 2e⁻ → H₃AsO₃ + H₂O	+560	331
Nitrate reductase	NO₃⁻ + 2H⁺ + 2e⁻ → NO₂⁻ + H₂O	+420	332
		+433	313
DMSO reductase	Me₂SO + 2H⁺ + 2e⁻ → Me₂S + H₂O	+160	332
TMAO reductase	Me₃NO + 2H⁺ + 2e⁻ → Me₃N + H₂O	+130	333
Tetrathionite reductase	S₄O₆²⁻ + 2e⁻ → 2S₂O₃²⁻	+80	329
		+24	313
CO dehydrogenase	CO₂ + 2H⁺ + 2e⁻ → CO + H₂O	−106	334
Xanthine oxidase	uric acid + 2H⁺ + 2e⁻ → xanthine + H₂O	−360	332
Sulfite oxidase	SO₄²⁻ + 2H⁺ + 2e⁻ - SO₃²⁻ + H₂O	−380	332
Formate dehydrogenase	CO₂ + H⁺ + 2e⁻ → HCOO⁻	−430	313, 332
Formylmethanofuran dehydrogenase	CO₂ + MFR⁻ + H⁺ + 2e⁻ → CHO-MFR + H₂O	−497	330, 332