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Murshudov, G.N., Vagin, A.A. and Dodson, E.J. (1997) Refinement of macromolecular structures by the maxi-mumlikelihood method. Acta Crystallographica Section D, 53, 240-255. doi:10.1107/S0907444996012255

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• TITLE: Crystal structure of PqqB from Pseudomonas putida at 2.2 Å resolution

  AUTHORS: Moritz Metlitzky, Sandra Puehringer, Stuart J. Fisher

  KEYWORDS: PqqB; PQQ; Biosynthetic Pathway; X-Ray Crystallography

  JOURNAL NAME: Journal of Biophysical Chemistry, Vol.3 No.2, May 29, 2012

  ABSTRACT: Pyrroloquinoline quinone (PQQ) is an important redox-active cofactor for many bacterial dehy-drogenases. It's biosynthetic pathway involves six or seven genes, one of which is pqqB. Former studies indicated that the protein encoded by pqqB, namely PqqB, functions as a PQQ transporter. Here we report the crystal structure of PqqB from Pseudomonas putida at 2.2 ? resolution together with functional studies to verify this theory.