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. 2012 Nov 16;1(2):82–99. doi: 10.3390/plants1020082

Figure 1.

Figure 1

A comparison of tungstate and molybdate structure that underlies their antagonism for molybdenum cofactor (MoCo). (A) Structural schemes of tungstate and molybdate. The metal atoms are at the centre of a tetrahedron of oxygen atoms. (B) Tungstate competes with molybdate for incorporation into the MoCo, resulting in inactivation of nitrate reductase (NR). FAD: flavin adenine dinucleotide, Mo-Mpt: molybdenum-molybdopterin. Reprinted from [29], with kind permission from both the authors and Oxford University Press.