Hellwig P - Search Results

1

Electrocatalytic evidence of the diversity of the oxygen reaction in the bacterial bd oxidase from different organisms.

Nikolaev A, Safarian S, Thesseling A, Wohlwend D, Friedrich T, Michel H, Kusumoto T, Sakamoto J, Melin F, Hellwig P. Nikolaev A, et al. Among authors: hellwig p. Biochim Biophys Acta Bioenerg. 2021 Aug 1;1862(8):148436. doi: 10.1016/j.bbabio.2021.148436. Epub 2021 Apr 30. Biochim Biophys Acta Bioenerg. 2021. PMID: 33940039 Free article.

2

Carboxyl group protonation upon reduction of the Paracoccus denitrificans cytochrome c oxidase: direct evidence by FTIR spectroscopy.

Hellwig P, Rost B, Kaiser U, Ostermeier C, Michel H, Mäntele W. Hellwig P, et al. FEBS Lett. 1996 Apr 29;385(1-2):53-7. doi: 10.1016/0014-5793(96)00342-0. FEBS Lett. 1996. PMID: 8641466 Free article.

3

Involvement of glutamic acid 278 in the redox reaction of the cytochrome c oxidase from Paracoccus denitrificans investigated by FTIR spectroscopy.

Hellwig P, Behr J, Ostermeier C, Richter OM, Pfitzner U, Odenwald A, Ludwig B, Michel H, Mäntele W. Hellwig P, et al. Biochemistry. 1998 May 19;37(20):7390-9. doi: 10.1021/bi9725576. Biochemistry. 1998. PMID: 9585553

A peak at 1746 cm-1 associated with the oxidized form and a peak at 1734 cm-1 associated with the reduced form were previously discussed by us as proton transfer between Asp or Glu side chain modes in the course of the redox reaction of the enzyme [Hellwig, P., Rost …

A peak at 1746 cm-1 associated with the oxidized form and a peak at 1734 cm-1 associated with the reduced form were previously discussed by …

4

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.

Behr J, Hellwig P, Mäntele W, Michel H. Behr J, et al. Among authors: hellwig p. Biochemistry. 1998 May 19;37(20):7400-6. doi: 10.1021/bi9731697. Biochemistry. 1998. PMID: 9585554

5

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.

Hellwig P, Ostermeier C, Michel H, Ludwig B, Mäntele W. Hellwig P, et al. Biochim Biophys Acta. 1998 Dec 1;1409(2):107-12. doi: 10.1016/s0005-2728(98)00151-0. Biochim Biophys Acta. 1998. PMID: 9838069 Free article.

6

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.

Hellwig P, Grzybek S, Behr J, Ludwig B, Michel H, Mäntele W. Hellwig P, et al. Biochemistry. 1999 Feb 9;38(6):1685-94. doi: 10.1021/bi982282+. Biochemistry. 1999. PMID: 10026246

7

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.

Rost B, Behr J, Hellwig P, Richter OM, Ludwig B, Michel H, Mäntele W. Rost B, et al. Among authors: hellwig p. Biochemistry. 1999 Jun 8;38(23):7565-71. doi: 10.1021/bi990225q. Biochemistry. 1999. PMID: 10360954

8

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.

Kuglstatter A, Hellwig P, Fritzsch G, Wachtveitl J, Oesterhelt D, Mäntele W, Michel H. Kuglstatter A, et al. Among authors: hellwig p. FEBS Lett. 1999 Dec 10;463(1-2):169-74. doi: 10.1016/s0014-5793(99)01614-2. FEBS Lett. 1999. PMID: 10601661 Free article.

9

Mutation of Arg-54 strongly influences heme composition and rate and directionality of electron transfer in Paracoccus denitrificans cytochrome c oxidase.

Kannt A, Pfitzner U, Ruitenberg M, Hellwig P, Ludwig B, Mäntele W, Fendler K, Michel H. Kannt A, et al. Among authors: hellwig p. J Biol Chem. 1999 Dec 31;274(53):37974-81. doi: 10.1074/jbc.274.53.37974. J Biol Chem. 1999. PMID: 10608865 Free article.

10

Functional properties of the heme propionates in cytochrome c oxidase from Paracoccus denitrificans. Evidence from FTIR difference spectroscopy and site-directed mutagenesis.

Behr J, Michel H, Mäntele W, Hellwig P. Behr J, et al. Among authors: hellwig p. Biochemistry. 2000 Feb 15;39(6):1356-63. doi: 10.1021/bi991504g. Biochemistry. 2000. PMID: 10684616

By specific (13)C labeling of the heme propionates, four bands in the reduced-minus-oxidized FTIR difference spectrum of cytochrome c oxidase from Paracoccus denitrificans have been assigned to the heme propionates [Behr, J., Hellwig, P., Mantele, W., and Michel, H. …

By specific (13)C labeling of the heme propionates, four bands in the reduced-minus-oxidized FTIR difference spectrum of cytochrome c oxidas …

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