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Petra Hellwig

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Yashvin Neehaul; Oscar Juárez; Blanca Barquera; Petra Hellwig
Infrared Spectroscopic Evidence of a Redox-Dependent Conformational Change Involving Ion Binding Residue NqrB-D397 in the Na(+)-Pumping NADH:Quinone Oxidoreductase from Vibrio cholerae.
Frederic MELIN; Petra Hellwig
Recent advances in the electrochemistry and spectroelectrochemistry of membrane proteins.
Yashvin Neehaul; Carolin Werner; Ying Chen; James A Fee; Bernd Ludwig; Petra Hellwig
Electrochemical and infrared spectroscopic analysis of the interaction of the Cu(A) domain and cytochrome c(552) from Thermus thermophilus.

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2013: Yashvin Neehaul; Oscar Juárez; Blanca Barquera; Petra Hellwig
Infrared Spectroscopic Evidence of a Redox-Dependent Conformational Change Involving Ion Binding Residue NqrB-D397 in the Na(+)-Pumping NADH:Quinone Oxidoreductase from Vibrio cholerae.
Biochemistry 2013;52(18):3085-93.
2013: Frederic MELIN; Petra Hellwig
Recent advances in the electrochemistry and spectroelectrochemistry of membrane proteins.
Biological chemistry 2013;394(5):593-609.
2012: Yashvin Neehaul; Carolin Werner; Ying Chen; James A Fee; Bernd Ludwig; Petra Hellwig
Electrochemical and infrared spectroscopic analysis of the interaction of the Cu(A) domain and cytochrome c(552) from Thermus thermophilus.
Biochimica et biophysica acta 2012;1817(10):1950-4.
2012: Oscar Juárez; Yashvin Neehaul; Erin Turk; Najat Chahboun; Jessica M DeMicco; Petra Hellwig; Blanca Barquera
The role of glycine residues 140 and 141 of subunit B in the functional ubiquinone binding site of the Na+-pumping NADH:quinone oxidoreductase from Vibrio cholerae.
The Journal of biological chemistry 2012;287(30):25678-85.
2012: Yashvin Neehaul; Oscar Juárez; Blanca Barquera; Petra Hellwig
Thermodynamic contribution to the regulation of electron transfer in the Na(+)-pumping NADH:quinone oxidoreductase from Vibrio cholerae.
Biochemistry 2012;51(19):4072-7.
2012: Frederic MELIN; N Oueslati; Christian Ruzié; A Trivella; Bernard Boitrel; Corinne Boudon; Petra Hellwig; I Hijazi; M Lo; Jennifer A Wytko; Jean Weiss
Comparative studies in series of cytochrome c oxidase models.
Journal of inorganic biochemistry 2012;108():196-202.
2011: Youssef El Khoury; Petra Hellwig
A combined far-infrared spectroscopic and electrochemical approach for the study of iron-sulfur proteins.
Chemphyschem : a European journal of chemical physics and physical chemistry 2011;12(14):2669-74.
2011: Thomas Meyer; Julien Gross; Christian Blanck; Marc Schmutz; Bernd Ludwig; Petra Hellwig; Frederic Melin
Electrochemistry of cytochrome c1, cytochrome c552, and CuA from the respiratory chain of Thermus thermophilus immobilized on gold nanoparticles.
The journal of physical chemistry. B 2011;115(21):7165-70.
2011: Dong-Woo Lee; Youssef El Khoury; Francesco Francia; Barbara Zambelli; Stefano Ciurli; Giovanni Venturoli; Petra Hellwig; Fevzi Daldal
Zinc inhibition of bacterial cytochrome bc(1) reveals the role of cytochrome b E295 in proton release at the Q(o) site.
Biochemistry 2011;50(20):4263-72.
2011: Ruth Hielscher; Thorsten Friedrich; Petra Hellwig
Far- and mid-infrared spectroscopic analysis of the substrate-induced structural dynamics of respiratory complex I.
Chemphyschem : a European journal of chemical physics and physical chemistry 2011;12(1):217-24.
2011: Mariana Voicescu; Dagmar Rother; Frank Bardischewsky; Cornelius G Friedrich; Petra Hellwig
A combined fluorescence spectroscopic and electrochemical approach for the study of thioredoxins.
Biochemistry 2011;50(1):17-24.
2010: Thomas Pohl; Thomas Spatzal; Müge Aksoyoglu; Erik Schleicher; Arpad Mihai Rostas; Helga Lay; Udo Glessner; Corinne Boudon; Petra Hellwig; Stefan Weber; Thorsten Friedrich
Spin labeling of the Escherichia coli NADH ubiquinone oxidoreductase (complex I).
Biochimica et biophysica acta 2010;1797(12):1894-900.
2010: Grzegorz Pawlik; Carmen Kulajta; Ilie Sachelaru; Sebastian Schröder; Barbara Waidner; Petra Hellwig; Fevzi Daldal; Hans-Georg Koch
The putative assembly factor CcoH is stably associated with the cbb3-type cytochrome oxidase.
Journal of bacteriology 2010;192(24):6378-89.
2010: Carolin Dreher; Ruth Hielscher; Alexander Prodöhl; Petra Hellwig; Dirk Schneider
Characterization of two cytochrome b6 proteins from the cyanobacterium Gloeobacter violaceus PCC 7421.
Journal of bioenergetics and biomembranes 2010;42(6):517-26.
2010: Youssef El Khoury; Aurélien Trivella; Julien Gross; Petra Hellwig
Probing the hydrogen bonding structure in the Rieske protein.
Chemphyschem : a European journal of chemical physics and physical chemistry 2010;11(15):3313-9.
2010: Thorsten Friedrich; Petra Hellwig
Redox-induced conformational changes within the Escherichia coli NADH ubiquinone oxidoreductase (complex I): an analysis by mutagenesis and FT-IR spectroscopy.
Biochimica et biophysica acta 2010;1797(6-7):659-63.
2010: Aurélien Trivella; Thomas Gaillard; Roland H Stote; Petra Hellwig
Far infrared spectra of solid state aliphatic amino acids in different protonation states.
The Journal of chemical physics 2010;132(11):115105.
2010: Ruth Hielscher; Petra Hellwig
The temperature-dependent hydrogen-bonding signature of lipids monitored in the far-infrared domain.
Chemphyschem : a European journal of chemical physics and physical chemistry 2010;11(2):435-41.
2009: Mariana Voicescu; Youssef El Khoury; David Martel; Martine Heinrich; Petra Hellwig
Spectroscopic analysis of tyrosine derivatives: on the role of the tyrosine-histidine covalent linkage in cytochrome c oxidase.
The journal of physical chemistry. B 2009;113(40):13429-36.
2009: Ruth Hielscher; Tina Wenz; Carola Hunte; Petra Hellwig
Monitoring the redox and protonation dependent contributions of cardiolipin in electrochemically induced FTIR difference spectra of the cytochrome bc(1) complex from yeast.
Biochimica et biophysica acta 2009;1787(6):617-25.
2009: Tina Wenz; Ruth Hielscher; Petra Hellwig; Hermann Schägger; Sebastian Richers; Carola Hunte
Role of phospholipids in respiratory cytochrome bc(1) complex catalysis and supercomplex formation.
Biochimica et biophysica acta 2009;1787(6):609-16.
2009: Mariana Voicescu; Martine Heinrich; Petra Hellwig
Steady-state and time resolved fluorescence analysis on tyrosine-histidine model compounds.
Journal of fluorescence 2009;19(2):257-66.
2009: Youssef El Khoury; Petra Hellwig
Infrared spectroscopic characterization of copper-polyhistidine from 1,800 to 50 cm(-1): model systems for copper coordination.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry 2009;14(1):23-34.
2008: Katharina L Dürr; Juergen Koepke; Petra Hellwig; Hannelore Müller; Heike Angerer; Guohong Peng; Elena Olkhova; Oliver-Matthias H Richter; Bernd Ludwig; Hartmut Michel
A D-pathway mutation decouples the Paracoccus denitrificans cytochrome c oxidase by altering the side-chain orientation of a distant conserved glutamate.
Journal of molecular biology 2008;384(4):865-77.
2008: Julia Janzon; Quan Yuan; Francesco Malatesta; Petra Hellwig; Bernd Ludwig; Bill Durham; Francis Millett
Probing the Paracoccus denitrificans cytochrome c(1)-cytochrome c(552) interaction by mutagenesis and fast kinetics.
Biochemistry 2008;47(49):12974-84.
2008: Carolin Dreher; Alexander Prodöhl; Ruth Hielscher; Petra Hellwig; Dirk Schneider
Multiple step assembly of the transmembrane cytochrome b6.
Journal of molecular biology 2008;382(4):1057-65.
2008: Thomas Pohl; Daniel Schneider; Ruth Hielscher; Stefan Stolpe; Katerina Dörner; Markus Kohlstädt; Bettina Böttcher; Petra Hellwig; Thorsten Friedrich
Nucleotide-induced conformational changes in the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).
Biochemical Society transactions 2008;36(Pt 5):971-5.
2008: Thomas Kleinschroth; Oliver Anderka; Michaela Ritter; Andreas Stocker; Thomas A Link; Bernd Ludwig; Petra Hellwig
Characterization of mutations in crucial residues around the Q(o) binding site of the cytochrome bc complex from Paracoccus denitrificans.
The FEBS journal 2008;275(19):4773-85.
2008: Petra Hellwig; Andreas Böhm; Ute Pfitzner; Werner Mäntele; Bernd Ludwig
Spectroscopic study on the communication between a heme a3 propionate, Asp399 and the binuclear center of cytochrome c oxidase from Paracoccus denitrificans.
Biochimica et biophysica acta 2008;1777(2):220-6.
2007: Sabine Dörr; Ulrich Schade; Petra Hellwig; M Ortolani
Characterization of temperature-dependent iron-imidazole vibrational modes in far infrared.
The journal of physical chemistry. B 2007;111(51):14418-22.
2007: Alexander Prodöhl; Carolin Dreher; Ruth Hielscher; Petra Hellwig; Dirk Schneider
Heterologous expression and in vitro assembly of the transmembrane cytochrome b6.
Protein expression and purification 2007;56(2):279-85.
2007: Ke Yang; Jie Zhang; Ahmet S Vakkasoglu; Ruth Hielscher; Jeffrey P Osborne; James Hemp; Hideto Miyoshi; Petra Hellwig; Robert B Gennis
Glutamate 107 in subunit I of the cytochrome bd quinol oxidase from Escherichia coli is protonated and near the heme d/heme b595 binuclear center.
Biochemistry 2007;46(11):3270-8.
2007: Tina Wenz; Raul Covian; Petra Hellwig; Fraser MacMillan; Brigitte Meunier; Bernard L Trumpower; Carola Hunte
Mutational analysis of cytochrome b at the ubiquinol oxidation site of yeast complex III.
The Journal of biological chemistry 2007;282(6):3977-88.
2006: Wen-Wu Li; Petra Hellwig; Michaela Ritter; Wolfgang Haehnel
De novo design, synthesis, and characterization of quinoproteins.
Chemistry (Weinheim an der Bergstrasse, Germany) 2006;12(27):7236-45.
2006: Dirk Flemming; Petra Hellwig; Simone Lepper; Daniel P Kloer; Thorsten Friedrich
Catalytic importance of acidic amino acids on subunit NuoB of the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).
The Journal of biological chemistry 2006;281(34):24781-9.
2006: Tina Wenz; Petra Hellwig; Fraser MacMillan; Brigitte Meunier; Carola Hunte
Probing the role of E272 in quinol oxidation of mitochondrial complex III.
Biochemistry 2006;45(30):9042-52.
2006: Martina Wolpert; Petra Hellwig
Infrared spectra and molar absorption coefficients of the 20 alpha amino acids in aqueous solutions in the spectral range from 1800 to 500 cm(-1).
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2006;64(4):987-1001.
2006: Sabine Dörr; Martina Wolpert; Petra Hellwig
Study on the redox state dependent gamma(CH) vibrational modes of the c-type heme.
Biopolymers 2006;82(4):349-52.
2006: Ruth Hielscher; Tina Wenz; Stefan Stolpe; Carola Hunte; Thorsten Friedrich; Petra Hellwig
Monitoring redox-dependent contribution of lipids in Fourier transform infrared difference spectra of complex I from Escherichia coli.
Biopolymers 2006;82(4):291-4.
2005: Thorsten Friedrich; Stefan Stolpe; D Schneider; Blanca Barquera; Petra Hellwig
Ion translocation by the Escherichia coli NADH:ubiquinone oxidoreductase (complex I).
Biochemical Society transactions 2005;33(Pt 4):836-9.
2005: Dirk Flemming; Stefan Stolpe; Daniel Schneider; Petra Hellwig; Thorsten Friedrich
A possible role for iron-sulfur cluster N2 in proton translocation by the NADH: ubiquinone oxidoreductase (complex I).
Journal of molecular microbiology and biotechnology 2005;10(2-4):208-22.
2005: Oliver-Matthias H Richter; Katharina L Dürr; Aimo Kannt; Bernd Ludwig; Francesca Maria Scandurra; Alessandro Giuffrè; Paolo Sarti; Petra Hellwig
Probing the access of protons to the K pathway in the Paracoccus denitrificans cytochrome c oxidase.
The FEBS journal 2005;272(2):404-12.
2004: Jie Zhang; Petra Hellwig; Jeffrey P Osborne; Robert B Gennis
Arginine 391 in subunit I of the cytochrome bd quinol oxidase from Escherichia coli stabilizes the reduced form of the hemes and is essential for quinol oxidase activity.
The Journal of biological chemistry 2004;279(52):53980-7.
2004: Michaela Ritter; Hildur Palsdottir; Masato Abe; Werner Mäntele; Carola Hunte; Hideto Miyoshi; Petra Hellwig
Direct evidence for the interaction of stigmatellin with a protonated acidic group in the bc(1) complex from Saccharomyces cerevisiae as monitored by FTIR difference spectroscopy and 13C specific labeling.
Biochemistry 2004;43(26):8439-46.
2004: Martina Wolpert; Oliver Maneg; Bernd Ludwig; Petra Hellwig
Characterization of the CuA center in the cytochrome c oxidase from Thermus thermophilus for the spectral range 1800-500 cm-1 with a combined electrochemical and Fourier transform infrared spectroscopic setup.
Biopolymers 2004;74(1-2):73-6.
2004: Petra Hellwig; Stefan Stolpe; Thorsten Friedrich
Fourier transform infrared spectroscopic study on the conformational reorganization in Escherichia coli complex I due to redox-driven proton translocation.
Biopolymers 2004;74(1-2):69-72.
2003: Michaela Ritter; Oliver Anderka; Bernd Ludwig; Werner Mäntele; Petra Hellwig
Electrochemical and FTIR spectroscopic characterization of the cytochrome bc1 complex from Paracoccus denitrificans: evidence for protonation reactions coupled to quinone binding.
Biochemistry 2003;42(42):12391-9.
2003: Petra Hellwig; Cláudio M. Gomes; Miguel Teixeira
FTIR spectroscopic characterization of the cytochrome aa3 from Acidianus ambivalens: evidence for the involvement of acidic residues in redox coupled proton translocation.
Biochemistry 2003;42(20):6179-84.
2003: Dirk Flemming; Petra Hellwig; Thorsten Friedrich
Involvement of tyrosines 114 and 139 of subunit NuoB in the proton pathway around cluster N2 in Escherichia coli NADH:ubiquinone oxidoreductase.
The Journal of biological chemistry 2003;278(5):3055-62.
2002: Petra Hellwig; Tewfik Soulimane; Werner Mäntele
Electrochemical, FT-IR and UV/VIS spectroscopic properties of the caa3 oxidase from T. thermophilus.
European journal of biochemistry / FEBS 2002;269(19):4830-8.
2002: Petra Hellwig; Takahiro Yano; Tomoko Ohnishi; Robert B Gennis
Identification of the residues involved in stabilization of the semiquinone radical in the high-affinity ubiquinone binding site in cytochrome bo(3) from Escherichia coli by site-directed mutagenesis and EPR spectroscopy.
Biochemistry 2002;41(34):10675-9.
2002: Petra Hellwig; Ute Pfitzner; Julia Behr; Borries Rost; Russell P Pesavento; Wilfred V Donk; Robert B Gennis; Hartmut Michel; Bernd Ludwig; Werner Mäntele
Vibrational modes of tyrosines in cytochrome c oxidase from Paracoccus denitrificans: FTIR and electrochemical studies on Tyr-D4-labeled and on Tyr280His and Tyr35Phe mutant enzymes.
Biochemistry 2002;41(29):9116-25.
2002: Jie Zhang; Walter Oettmeier; Robert B Gennis; Petra Hellwig
FTIR spectroscopic evidence for the involvement of an acidic residue in quinone binding in cytochrome bd from Escherichia coli.
Biochemistry 2002;41(14):4612-7.
2002: Blanca Barquera; Petra Hellwig; Weidong Zhou; Joel E Morgan; Claudia C Häse; Khoosheh K Gosink; Mark Joseph Nilges; Peter J Bruesehoff; Annette Roth; Roy Lancaster; Robert B Gennis
Purification and characterization of the recombinant Na(+)-translocating NADH:quinone oxidoreductase from Vibrio cholerae.
Biochemistry 2002;41(11):3781-9.
2001: Jie Zhang; Petra Hellwig; Jeffrey P Osborne; H W Huang ; Pierre Moanne-Loccoz; Alexander A Konstantinov; Robert B Gennis
Site-directed mutation of the highly conserved region near the Q-loop of the cytochrome bd quinol oxidase from Escherichia coli specifically perturbs heme b595.
Biochemistry 2001;40(29):8548-56.
2001: Petra Hellwig; Borries Rost; Werner Mäntele
Redox dependent conformational changes in the mixed valence form of the cytochrome c oxidase from p. The reorganization of glutamic acid 278 is coupled to the electron transfer from/to heme a and the binuclear center. denitrificans.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2001;57A(5):1123-31.
2001: Petra Hellwig; Blanca Barquera; Robert B Gennis
Direct evidence for the protonation of aspartate-75, proposed to be at a quinol binding site, upon reduction of cytochrome bo3 from Escherichia coli.
Biochemistry 2001;40(4):1077-82.
2000: Petra Hellwig; Dierk Scheide; S Bungert; Werner Mäntele; Thorsten Friedrich
FT-IR spectroscopic characterization of NADH:ubiquinone oxidoreductase (complex I) from Escherichia coli: oxidation of FeS cluster N2 is coupled with the protonation of an aspartate or glutamate side chain.
Biochemistry 2000;39(35):10884-91.
2000: Thorsten Friedrich; Benedikt Brors; Petra Hellwig; L Kintscher; T Rasmussen; Dierk Scheide; Ulrich Schulte; Werner Mäntele; Hanns Weiss
Characterization of two novel redox groups in the respiratory NADH:ubiquinone oxidoreductase (complex I).
Biochimica et biophysica acta 2000;1459(2-3):305-9.
2000: Julia Behr; Hartmut Michel; Werner Mäntele; Petra Hellwig
Functional properties of the heme propionates in cytochrome c oxidase from Paracoccus denitrificans. Evidence from FTIR difference spectroscopy and site-directed mutagenesis.
Biochemistry 2000;39(6):1356-63.
1999: Aimo Kannt; Ute Pfitzner; Maarten Ruitenberg; Petra Hellwig; Bernd Ludwig; Werner Mäntele; Klaus Fendler; Hartmut Michel
Mutation of Arg-54 strongly influences heme composition and rate and directionality of electron transfer in Paracoccus denitrificans cytochrome c oxidase.
The Journal of biological chemistry 1999;274(53):37974-81.
1999: Andreas Kuglstatter; Petra Hellwig; Günter Fritzsch; Josef Wachtveitl; Dieter Oesterhelt; Werner Mäntele; Hartmut Michel
Identification of a hydrogen bond in the phe M197-->Tyr mutant reaction center of the photosynthetic purple bacterium Rhodobacter sphaeroides by X-ray crystallography and FTIR spectroscopy.
FEBS letters 1999;463(1-2):169-74.
1999: Petra Hellwig; Tatsushi Mogi; Farol L Tomson; Robert B Gennis; J Iwata; Hideto Miyoshi; Werner Mäntele
Vibrational modes of ubiquinone in cytochrome bo(3) from Escherichia coli identified by Fourier transform infrared difference spectroscopy and specific (13)C labeling.
Biochemistry 1999;38(44):14683-9.
1999: Petra Hellwig; Tewfik Soulimane; Gerhard Buse; Werner Mäntele
Similarities and dissimilarities in the structure-function relation between the cytochrome c oxidase from bovine heart and from Paracoccus denitrificans as revealed by FT-IR difference spectroscopy.
FEBS letters 1999;458(2):83-6.
1999: Petra Hellwig; Tewfik Soulimane; Gerhard Buse; Werner Mäntele
Electrochemical, FTIR, and UV/VIS spectroscopic properties of the ba(3) oxidase from Thermus thermophilus.
Biochemistry 1999;38(30):9648-58.
1999: Borries Rost; Julia Behr; Petra Hellwig; Oliver-Matthias H Richter; Bernd Ludwig; Hartmut Michel; Werner Mäntele
Time-resolved FT-IR studies on the CO adduct of Paracoccus denitrificans cytochrome c oxidase: comparison of the fully reduced and the mixed valence form.
Biochemistry 1999;38(23):7565-71.
1999: Petra Hellwig; S Grzybek; Julia Behr; Bernd Ludwig; Hartmut Michel; Werner Mäntele
Electrochemical and ultraviolet/visible/infrared spectroscopic analysis of heme a and a3 redox reactions in the cytochrome c oxidase from Paracoccus denitrificans: separation of heme a and a3 contributions and assignment of vibrational modes.
Biochemistry 1999;38(6):1685-94.
1998: Petra Hellwig; C Ostermeier; Hartmut Michel; Bernd Ludwig; Werner Mäntele
Electrochemically induced FT-IR difference spectra of the two- and four-subunit cytochrome c oxidase from P. denitrificans reveal identical conformational changes upon redox transitions.
Biochimica et biophysica acta 1998;1409(2):107-12.
1998: Julia Behr; Petra Hellwig; Werner Mäntele; Hartmut Michel
Redox dependent changes at the heme propionates in cytochrome c oxidase from Paracoccus denitrificans: direct evidence from FTIR difference spectroscopy in combination with heme propionate 13C labeling.
Biochemistry 1998;37(20):7400-6.
1998: Petra Hellwig; Julia Behr; C Ostermeier; Oliver-Matthias H Richter; Ute Pfitzner; A Odenwald; Bernd Ludwig; Hartmut Michel; Werner Mäntele
Involvement of glutamic acid 278 in the redox reaction of the cytochrome c oxidase from Paracoccus denitrificans investigated by FTIR spectroscopy.
Biochemistry 1998;37(20):7390-9.
1996: Petra Hellwig; B Rost; U Kaiser; C Ostermeier; Hartmut Michel; Werner Mäntele
Carboxyl group protonation upon reduction of the Paracoccus denitrificans cytochrome c oxidase: direct evidence by FTIR spectroscopy.
FEBS letters 1996;385(1-2):53-7.