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Structure of Physarum polycephalum cytochrome b 5 reductase at 1.56 Å resolution

Structure of Physarum polycephalum cytochrome b 5 reductase at 1.56 Å resolution Physarum polycephalum cytochrome b5 reductase catalyzes the reduction of cytochrome b5 by NADH. The structure of P. polycephalum cytochrome b5 reductase was determined at a resolution of 1.56 Å. The molecular structure was compared with that of human cytochrome b5 reductase, which had previously been determined at 1.75 Å resolution (Bando et al. (2004), Acta Cryst. D60, 1929–1934). The high‐resolution structure revealed conformational differences between the two enzymes in the adenosine moiety of the FAD, the lid region and the linker region. The structural properties of both proteins were inspected in terms of hydrogen bonding, ion pairs, accessible surface area and cavity volume. The differences in these structural properties between the two proteins were consistent with estimates of their thermostabilities obtained from differential scanning calorimetry data. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section F Wiley

Structure of Physarum polycephalum cytochrome b 5 reductase at 1.56 Å resolution

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References (26)

Publisher
Wiley
Copyright
Copyright © 2007 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1744-3091
eISSN
1744-3091
DOI
10.1107/S1744309107010731
pmid
17401193
Publisher site
See Article on Publisher Site

Abstract

Physarum polycephalum cytochrome b5 reductase catalyzes the reduction of cytochrome b5 by NADH. The structure of P. polycephalum cytochrome b5 reductase was determined at a resolution of 1.56 Å. The molecular structure was compared with that of human cytochrome b5 reductase, which had previously been determined at 1.75 Å resolution (Bando et al. (2004), Acta Cryst. D60, 1929–1934). The high‐resolution structure revealed conformational differences between the two enzymes in the adenosine moiety of the FAD, the lid region and the linker region. The structural properties of both proteins were inspected in terms of hydrogen bonding, ion pairs, accessible surface area and cavity volume. The differences in these structural properties between the two proteins were consistent with estimates of their thermostabilities obtained from differential scanning calorimetry data.

Journal

Acta Crystallographica Section FWiley

Published: Apr 1, 2007

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