Literature DB >> 16212344

Pulsed EPR studies of a bacterial sulfite-oxidizing enzyme with pH-invariant hyperfine interactions from exchangeable protons.

Arnold M Raitsimring1, Ulrike Kappler, Changjian Feng, Andrei V Astashkin, John H Enemark.   

Abstract

Variable-frequency pulsed electron paramagnetic resonance studies of the molybdenum(V) center of sulfite dehydrogenase (SDH) clearly show couplings from nearby exchangeable protons that are assigned to a Mo(V)OH(n) group. The hyperfine parameters for these exchangeable protons of SDH are the same at both low and high pH and similar to those for the high-pH forms of sulfite oxidases (SOs) from eukaryotes. The SDH proton parameters are distinctly different from the low-pH forms of chicken and human SO.

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Year:  2005        PMID： 16212344     DOI： 10.1021/ic0509534

Source DB:  PubMed          Journal:  Inorg Chem        ISSN： 0020-1669            Impact factor:   5.165


  10 in total

1.  HIGH-RESOLUTION EPR SPECTROSCOPY OF MO ENZYMES. SULFITE OXIDASES: STRUCTURAL AND FUNCTIONAL IMPLICATIONS.

Authors:  John H Enemark; A V Astashkin; A M Raitsimring
Journal:  Biol Magn Reson       Date:  2010-01-01

Review 2.  Sulfite-oxidizing enzymes.

Authors:  Ulrike Kappler; John H Enemark
Journal:  J Biol Inorg Chem       Date:  2014-09-27       Impact factor: 3.358

3.  Structural basis for the oxidation of protein-bound sulfur by the sulfur cycle molybdohemo-enzyme sulfane dehydrogenase SoxCD.

Authors:  Ulrich Zander; Annette Faust; Björn U Klink; Daniele de Sanctis; Santosh Panjikar; Armin Quentmeier; Frank Bardischewsky; Cornelius G Friedrich; Axel J Scheidig
Journal:  J Biol Chem       Date:  2010-12-08       Impact factor: 5.157

4.  Direct demonstration of the presence of coordinated sulfate in the reaction pathway of Arabidopsis thaliana sulfite oxidase using 33S labeling and ESEEM spectroscopy.

Authors:  Andrei V Astashkin; Kayunta Johnson-Winters; Eric L Klein; Robert S Byrne; Russ Hille; Arnold M Raitsimring; John H Enemark
Journal:  J Am Chem Soc       Date:  2007-11-06       Impact factor: 15.419

5.  Pulsed EPR investigations of the Mo(V) centers of the R55Q and R55M variants of sulfite dehydrogenase from Starkeya novella.

Authors:  Trevor D Rapson; Andrei V Astashkin; Kayunta Johnson-Winters; Paul V Bernhardt; Ulrike Kappler; Arnold M Raitsimring; John H Enemark
Journal:  J Biol Inorg Chem       Date:  2010-01-19       Impact factor: 3.358

Review 6.  Sulfite oxidizing enzymes.

Authors:  Changjian Feng; Gordon Tollin; John H Enemark
Journal:  Biochim Biophys Acta       Date:  2007-03-20

7.  Exchangeable oxygens in the vicinity of the molybdenum center of the high-pH form of sulfite oxidase and sulfite dehydrogenase.

Authors:  Andrei V Astashkin; Eric L Klein; Dmitry Ganyushin; Kayunta Johnson-Winters; Frank Neese; Ulrike Kappler; John H Enemark
Journal:  Phys Chem Chem Phys       Date:  2009-07-13       Impact factor: 3.676

8.  Structural studies of the molybdenum center of the pathogenic R160Q mutant of human sulfite oxidase by pulsed EPR spectroscopy and 17O and 33S labeling.

Authors:  Andrei V Astashkin; Kayunta Johnson-Winters; Eric L Klein; Changjian Feng; Heather L Wilson; K V Rajagopalan; Arnold M Raitsimring; John H Enemark
Journal:  J Am Chem Soc       Date:  2008-06-05       Impact factor: 15.419

9.  Studies of the Mo(V) Center of the Y343F Mutant of Human Sulfite Oxidase by Variable Frequency Pulsed EPR Spectroscopy.

Authors:  Arnold M Raitsimring; Andrei V Astashkin; Changjian Feng; Heather L Wilson; K V Rajagopalan; John H Enemark
Journal:  Inorganica Chim Acta       Date:  2008-03-03       Impact factor: 2.545

10.  Structural basis of interprotein electron transfer in bacterial sulfite oxidation.

Authors:  Aaron P McGrath; Elise L Laming; G Patricia Casas Garcia; Marc Kvansakul; J Mitchell Guss; Jill Trewhella; Benoit Calmes; Paul V Bernhardt; Graeme R Hanson; Ulrike Kappler; Megan J Maher
Journal:  Elife       Date:  2015-12-19       Impact factor: 8.140
  10 in total

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