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. 2008 Dec 3;9:581. doi: 10.1186/1471-2164-9-581

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Copyright © 2008 Levicán et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Schematic diagram of the A. thiooxidans DSM17318 genomic region containing putative nitrate assimilation genes. The following genes are indicated: ntrA encodes the periplasmic component of the nitrate transport system; narK encodes a nitrate/nitrite transporter; nirB encodes a nitrite reductase, which is interrupted by the transposase tnpA; nirD encodes the nitrite reductase small subunit; narB encodes a nitrate reductase; cysG encodes an uroporphyrin-III C-methyltransferase; and nasT encodes a nitrate assimilation system regulator.