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Article ; Online: Molecular basis for the distinct functions of redox-active and FeS-transfering glutaredoxins.

Trnka, Daniel / Engelke, Anna D / Gellert, Manuela / Moseler, Anna / Hossain, Md Faruq / Lindenberg, Tobias T / Pedroletti, Luca / Odermatt, Benjamin / de Souza, João V / Bronowska, Agnieszka K / Dick, Tobias P / Mühlenhoff, Uli / Meyer, Andreas J / Berndt, Carsten / Lillig, Christopher Horst

Nature communications

2020 Volume 11, Issue 1, Page(s) 3445

Abstract: Despite their very close structural similarity, CxxC/S-type (class I) glutaredoxins (Grxs) act as oxidoreductases, while CGFS-type (class II) Grxs act as FeS cluster transferases. Here we show that the key determinant of Grx function is a distinct loop ... ...

Abstract	Despite their very close structural similarity, CxxC/S-type (class I) glutaredoxins (Grxs) act as oxidoreductases, while CGFS-type (class II) Grxs act as FeS cluster transferases. Here we show that the key determinant of Grx function is a distinct loop structure adjacent to the active site. Engineering of a CxxC/S-type Grx with a CGFS-type loop switched its function from oxidoreductase to FeS transferase. Engineering of a CGFS-type Grx with a CxxC/S-type loop abolished FeS transferase activity and activated the oxidative half reaction of the oxidoreductase. The reductive half-reaction, requiring the interaction with a second GSH molecule, was enabled by switching additional residues in the active site. We explain how subtle structural differences, mostly depending on the structure of one particular loop, act in concert to determine Grx function.
MeSH term(s)	Animals ; Catalytic Domain ; Glutaredoxins/chemistry ; Glutaredoxins/metabolism ; Humans ; Iron-Sulfur Proteins/chemistry ; Oxidation-Reduction ; Protein Binding ; Protein Structure, Secondary ; Signal Transduction/physiology ; Substrate Specificity
Chemical Substances	GLRX2 protein, human ; Glutaredoxins ; Iron-Sulfur Proteins
Language	English
Publishing date	2020-07-10
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-020-17323-0
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Epidermal growth factor receptors in Rous sarcoma virus-transformed cells of different hosts.

Sovová, V / Fidlerová, H / Trnka, D / Sloncová, E

Folia biologica

1994 Volume 40, Issue 5, Page(s) 291–299

Abstract: It was found that epidermal growth factor (EGF) binding on cells transformed by Rous sarcoma virus (RSV) differed in mice and hamsters. While EGF binding was considerably reduced in mouse tumours, the binding activity of hamster cells did not change ... ...

Abstract	It was found that epidermal growth factor (EGF) binding on cells transformed by Rous sarcoma virus (RSV) differed in mice and hamsters. While EGF binding was considerably reduced in mouse tumours, the binding activity of hamster cells did not change after RSV transformation.
MeSH term(s)	Animals ; Avian Sarcoma Viruses/metabolism ; Avian Sarcoma Viruses/physiology ; Blotting, Northern ; Cell Transformation, Viral ; Cricetinae ; Gene Expression/physiology ; Humans ; Iodine Radioisotopes ; Mesocricetus ; Mice ; Receptor, Epidermal Growth Factor/genetics ; Receptor, Epidermal Growth Factor/metabolism ; Receptors, Cell Surface ; Tumor Cells, Cultured
Chemical Substances	Iodine Radioisotopes ; Receptors, Cell Surface ; Receptor, Epidermal Growth Factor (EC 2.7.10.1)
Language	English
Publishing date	1994
Publishing country	Czech Republic
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	419223-0
ISSN	0015-5500
ISSN	0015-5500
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Article ; Online: Three-body nature of N() and Δ() resonances from sequential decay chains.

Thiel, A / Sokhoyan, V / Gutz, E / van Pee, H / Anisovich, A V / Bacelar, J C S / Bantes, B / Bartholomy, O / Bayadilov, D / Beck, R / Beloglazov, Yu / Castelijns, R / Crede, V / Dutz, H / Elsner, D / Ewald, R / Frommberger, F / Fuchs, M / Funke, Ch /

Gregor, R / Gridnev, A / Hillert, W / Hoffmeister, Ph / Horn, I / Jaegle, I / Junkersfeld, J / Kalinowsky, H / Kammer, S / Kleber, V / Klein, Frank / Klein, Friedrich / Klempt, E / Kotulla, M / Krusche, B / Lang, M / Löhner, H / Lopatin, I / Lugert, S / Mertens, T / Messchendorp, J G / Metag, V / Metsch, B / Nanova, M / Nikonov, V / Novinski, D / Novotny, R / Ostrick, M / Pant, L / Pfeiffer, M / Piontek, D / Roy, A / Sarantsev, A V / Schmidt, Ch / Schmieden, H / Shende, S / Süle, A / Sumachev, V V / Szczepanek, T / Thoma, U / Trnka, D / Varma, R / Walther, D / Wendel, Ch / Wilson, A

Physical review letters

2015 Volume 114, Issue 9, Page(s) 91803

Abstract: The Nπ^{0}π^{0} decays of positive-parity N^{*} and Δ^{*} resonances at about 2 GeV are studied at ELSA by photoproduction of two neutral pions off protons. The data reveal clear evidence for several intermediate resonances: Δ(1232), N(1520)3/2^{-}, and ... ...

Abstract	The Nπ^{0}π^{0} decays of positive-parity N^{} and Δ^{} resonances at about 2 GeV are studied at ELSA by photoproduction of two neutral pions off protons. The data reveal clear evidence for several intermediate resonances: Δ(1232), N(1520)3/2^{-}, and N(1680)5/2^{+}, with spin parities J^{P}=3/2^{+}, 3/2^{-}, and 5/2^{+}. The partial wave analysis (within the Bonn-Gatchina approach) identifies N(1440)1/2^{+} and the N(ππ)_{S wave} (abbreviated as Nσ here) as further isobars and assigns the final states to the formation of nucleon and Δ resonances and to nonresonant contributions. We observe the known Δ(1232)π decays of Δ(1910)1/2^{+}, Δ(1920)3/2^{+}, Δ(1905)5/2^{+}, Δ(1950)7/2^{+}, and of the corresponding spin-parity series in the nucleon sector, N(1880)1/2^{+}, N(1900)3/2^{+}, N(2000)5/2^{+}, and N(1990)7/2^{+}. For the nucleon resonances, these decay modes are reported here for the first time. Further new decay modes proceed via N(1440)1/2^{+}π, N(1520)3/2^{-}π, N(1680)5/2^{+}π, and Nσ. The latter decay modes are observed in the decay of N^{} resonances and at most weakly in Δ^{} decays. It is argued that these decay modes provide evidence for a 3-quark nature of N^{*} resonances rather than a quark-diquark structure.
Language	English
Publishing date	2015-03-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.114.091803
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Article: Modification of the omega-meson lifetime in nuclear matter.

Kotulla, M / Trnka, D / Mühlich, P / Anton, G / Bacelar, J C S / Bartholomy, O / Bayadilov, D / Beloglazov, Y A / Bogendörfer, R / Castelijns, R / Crede, V / Dutz, H / Ehmanns, A / Elsner, D / Ewald, R / Fabry, I / Fuchs, M / Essig, K / Funke, Ch /

Gothe, R / Gregor, R / Gridnev, A B / Gutz, E / Höffgen, S / Hoffmeister, P / Horn, I / Hössl, J / Jaegle, I / Junkersfeld, J / Kalinowsky, H / Klein, Frank / Klein, Fritz / Klempt, E / Konrad, M / Kopf, B / Krusche, B / Langheinrich, J / Löhner, H / Lopatin, I V / Lotz, J / Lugert, S / Menze, D / Messchendorp, J G / Mertens, T / Metag, V / Mosel, U / Nanova, M / Novotny, R / Ostrick, M / Pant, L M / van Pee, H / Pfeiffer, M / Roy, A / Radkov, A / Schadmand, S / Schmidt, Ch / Schmieden, H / Schoch, B / Shende, S / Suft, G / Sumachev, V V / Szczepanek, T / Süle, A / Thoma, U / Varma, R / Walther, D / Weinheimer, Ch / Wendel, Ch

Physical review letters

2008 Volume 100, Issue 19, Page(s) 192302

Abstract: Information on hadron properties in the nuclear medium has been derived from the photoproduction of omega mesons on the nuclei C, Ca, Nb, and Pb using the Crystal Barrel/TAPS detector at the ELSA tagged photon facility in Bonn. The dependence of the ... ...

Abstract	Information on hadron properties in the nuclear medium has been derived from the photoproduction of omega mesons on the nuclei C, Ca, Nb, and Pb using the Crystal Barrel/TAPS detector at the ELSA tagged photon facility in Bonn. The dependence of the omega-meson cross section on the nuclear mass number has been compared with three different types of models: a Glauber analysis, a Boltzmann-Uehling-Uhlenbeck analysis of the Giessen theory group, and a calculation by the Valencia theory group. In all three cases, the inelastic omega width is found to be 130-150 MeV/c(2) at normal nuclear matter density for an average 3-momentum of 1.1 GeV/c. In the rest frame of the omega meson, this inelastic omega width corresponds to a reduction of the omega lifetime by a factor approximately 30. For the first time, the momentum dependent omegaN cross section has been extracted from the experiment and is in the range of 70 mb.
Language	English
Publishing date	2008-05-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.100.192302
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Article: Quasifree photoproduction of eta mesons off the neutron.

Jaegle, I / Mertens, T / Anisovich, A V / Bacelar, J C S / Bantes, B / Bartholomy, O / Bayadilov, D / Beck, R / Beloglazov, Y A / Castelijns, R / Crede, V / Dutz, H / Ehmanns, A / Elsner, D / Essig, K / Ewald, R / Fabry, I / Fuchs, M / Funke, Ch /

Gothe, R / Gregor, R / Gridnev, A B / Gutz, E / Höffgen, S / Hoffmeister, P / Horn, I / Junkersfeld, J / Kalinowsky, H / Kammer, S / Kleber, V / Klein, Frank / Klein, Friedrich / Klempt, E / Konrad, M / Kotulla, M / Krusche, B / Lang, M / Langheinrich, J / Löhner, H / Lopatin, I V / Lotz, J / Lugert, S / Menze, D / Messchendorp, J G / Metag, V / Morales, C / Nanova, M / Nikonov, V A / Novinski, D / Novotny, R / Ostrick, M / Pant, L M / van Pee, H / Pfeiffer, M / Radkov, A / Roy, A / Sarantsev, A V / Schadmand, S / Schmidt, C / Schmieden, H / Schoch, B / Shende, S V / Sokhoyan, V / Süle, A / Sumachev, V V / Szczepanek, T / Thoma, U / Trnka, D / Varma, R / Walther, D / Weinheimer, Ch / Wendel, Ch

Physical review letters

2008 Volume 100, Issue 25, Page(s) 252002

Abstract: Quasifree photoproduction of eta mesons off nucleons bound in the deuteron has been measured with the CBELSA/TAPS detector for incident photon energies up to 2.5 GeV at the Bonn ELSA accelerator. The eta mesons have been detected in coincidence with ... ...

Abstract	Quasifree photoproduction of eta mesons off nucleons bound in the deuteron has been measured with the CBELSA/TAPS detector for incident photon energies up to 2.5 GeV at the Bonn ELSA accelerator. The eta mesons have been detected in coincidence with recoil protons and recoil neutrons, which allows a detailed comparison of the quasifree n(gamma,eta)n and p(gamma,eta)p reactions. The excitation function for eta production off the neutron shows a pronounced bumplike structure at W=1.68 GeV (E{gamma} approximately 1 GeV), which is absent for the proton.
Language	English
Publishing date	2008-06-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.100.252002
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Photoproduction of eta'-mesons off the deuteron

Jaegle, I. / Mertens, T. / Fix, A. / Huang, F. / Nakayama, K. / Tiator, L. / Anisovich, A.V. / Bacelar, J.C.S. / Bantes, B. / Bartholomy, O. / Bayadilov, D.E. / Beck, R. / Beloglazov, Y.A. / Castelijns, R. / Crede, V. / Dutz, H. / Elsner, D. / Ewald, R. / Frommberger, F. /

Funke, C. / Gregor, R. / Gridnev, A.B. / Gutz, E. / Hillert, W. / Höffgen, S. / Junkersfeld, J. / Kalinowsky, H. / Kammer, S. / Kleber, V. / Klein, F. / Klempt, E. / Kotulla, M. / Krusche, B. / Lang, M. / Löhner, H. / Lopatin, I.V. / Lugert, S. / Menze, D. / Messchendorp, J.G. / Metag, V. / Nikonov, V.A. / Nanova, M. / Novinski, D.V. / Novotny, R. / Ostrick, M. / Pant, L.M. / Pee, H. van / Pfeiffer, M. / Roy, A. / Sarantsev, A.V. / Schadmand, S. / Schmidt, C. / Schmieden, H. / Schoch, B. / Shende, S.V. / Sokhoyan, V. / Süle, A. / Sumachev, V.V. / Szczepanek, T. / Trnka, D. / Thoma, U. / Varma, R. / Walther, D. / Wendel, C.

2011

Abstract: Art. 11, 18 S. ... Quasi-free photoproduction of eta'-mesons off nucleons bound in the deuteron has been measured with the combined Crystal Barrel - TAPS detector. The experiment was done at a tagged photon beam of the ELSA electron accelerator in Bonn for ...

Abstract	Art. 11, 18 S. Quasi-free photoproduction of eta'-mesons off nucleons bound in the deuteron has been measured with the combined Crystal Barrel - TAPS detector. The experiment was done at a tagged photon beam of the ELSA electron accelerator in Bonn for incident photon energies from the production threshold up to 2.5 GeV. The eta'-mesons have been detected in coincidence with recoil protons and recoil neutrons. The quasi-free proton data are in good agreement with the results for free protons, indicating that nuclear effects have no significant impact. The coincidence with recoil neutrons provides the first data for the gamma-n -> n-eta' reaction. In addition, also first estimates for coherent eta'-production off the deuteron have been obtained. In agreement with model predictions, the total cross-section for this channel is found to be very small, at most at the level of a few nb. The data are compared to model calculations taking into account contributions from nucleon resonances and t-channel exchanges. 47 Nr.1
Keywords	620 ; 539
Subject code	551
Language	English
Publishing country	de
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Observation of in-medium modifications of the omega meson.

Trnka, D / Anton, G / Bacelar, J C S / Bartholomy, O / Bayadilov, D / Beloglazov, Y A / Bogendörfer, R / Castelijns, R / Crede, V / Dutz, H / Ehmanns, A / Elsner, D / Ewald, R / Fabry, I / Fuchs, M / Essig, K / Funke, Ch / Gothe, R / Gregor, R /

Gridnev, A B / Gutz, E / Höffgen, S / Hoffmeister, P / Horn, I / Hössl, J / Jaegle, I / Junkersfeld, J / Kalinowsky, H / Klein, Frank / Klein, Fritz / Klempt, E / Konrad, M / Kopf, B / Kotulla, M / Krusche, B / Langheinrich, J / Löhner, H / Lopatin, I V / Lotz, J / Lugert, S / Menze, D / Messchendorp, J G / Mertens, T / Metag, V / Morales, C / Nanova, M / Novotny, R / Ostrick, M / Pant, L M / van Pee, H / Pfeiffer, M / Roy, A / Radkov, A / Schadmand, S / Schmidt, Ch / Schmieden, H / Schoch, B / Shende, S / Suft, G / Sumachev, V V / Szczepanek, T / Süle, A / Thoma, U / Varma, R / Walther, D / Weinheimer, Ch / Wendel, Ch

Physical review letters

2005 Volume 94, Issue 19, Page(s) 192303

Abstract: The photoproduction of omega mesons on nuclei has been investigated using the Crystal Barrel/TAPS experiment at the ELSA tagged photon facility in Bonn. The aim is to study possible in-medium modifications of the omega meson via the reaction gamma + A --> ...

Abstract	The photoproduction of omega mesons on nuclei has been investigated using the Crystal Barrel/TAPS experiment at the ELSA tagged photon facility in Bonn. The aim is to study possible in-medium modifications of the omega meson via the reaction gamma + A --> omega + X --> pi(0)gamma + X('). Results obtained for Nb are compared to a reference measurement on a LH2 target. While for recoiling, long-lived mesons (pi(0), eta, and eta;(')), which decay outside of the nucleus, a difference in the line shape for the two data samples is not observed, we find a significant enhancement towards lower masses for omega mesons produced on the Nb target. For momenta less than 500 MeV/c an in-medium omega meson mass of M(medium) = [722(+4)(-4)(stat)+35-5(syst)] MeV/c(2) has been deduced at an estimated average nuclear density of 0.6rho(0).
Language	English
Publishing date	2005-05-20
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.94.192303
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Book ; Online: Photoproduction of $\eta '$-mesons off the deuteron

Jaegle, I. / Mertens, T. / Fix, A. / Huang, F. / Nakayama, K. / Tiator, L. / Anisovich, A. V. / Bacelar, J. C. S. / Bantes, B. / Bartholomy, O. / Bayadilov, D. E. / Beck, R. / Beloglazov, Y. A. / Castelijns, R. / Crede, V. / Dutz, H. / Elsner, D. / Ewald, R. / Frommberger, F. /

Funke, C. / Gregor, R. / Gridnev, A. B. / Gutz, E. / Hillert, W. / Hoeffgen, S. / Junkersfeld, J. / Kalinowsky, H. / Kammer, S. / Kleber, V. / Klein, Frank / Klein, Friedrich / Klempt, E. / Kotulla, M. / Krusche, B. / Lang, M. / Loehner, H. / Lopatin, I. V. / Lugert, S. / Menze, D. / Messchendorp, J. G. / Metag, V. / Nikonov, V. A. / Nanova, M. / Novinski, D. V. / Novotny, R. / Ostrick, M. / Pant, L. M. / van Pee, H. / Pfeiffer, M. / Roy, A. / Sarantsev, A. V. / Schadmand, S. / Schmidt, C. / Schmieden, H. / Schoch, B. / Shende, S. V. / Sokhoyan, V. / Suele, A. / Sumachev, V. V. / Szczepanek, T. / Thoma, U. / Trnka, D. / Varma, R. / Walther, D. / Wendel, C.

2010

Abstract: Quasi-free photoproduction of $\eta '$ mesons off nucleons bound in the deuteron has been measured with the combined Crystal Barrel - TAPS detector. The experiment was done at a tagged photon beam of the ELSA electron accelerator in Bonn for incident ... ...

Abstract	Quasi-free photoproduction of $\eta '$ mesons off nucleons bound in the deuteron has been measured with the combined Crystal Barrel - TAPS detector. The experiment was done at a tagged photon beam of the ELSA electron accelerator in Bonn for incident photon energies from the production threshold up to 2.5 GeV. The $\eta '$-mesons have been detected in coincidence with recoil protons and recoil neutrons. The quasi-free proton data are in good agreement with the results for free protons, indicating that nuclear effects have no significant impact. The coincidence with recoil neutrons provides the first data for the $\gamma n \rightarrow n\eta '$ reaction. In addition, also first estimates for coherent $\eta '$-production off the deuteron have been obtained. In agreement with model predictions, the total cross section for this channel is found to be very small, at most at the level of a few nb. The data are compared to model calculations taking into account contributions from nucleon resonances and $t$-channel exchanges. Comment: Accepted for publication in Eur. Phys. J. A
Keywords	Nuclear Experiment
Subject code	551
Publishing date	2010-12-05
Publishing country	us
Document type	Book ; Online
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Book ; Online: Photoproduction of eta-mesons off nuclei for Eg < 2.2 GeV

Mertens, T. / Jaegle, I. / Muehlich, P. / Bacelar, J. C. S. / Bantes, B. / Bartholomy, O. / Bayadilov, D. E. / Beck, R. / Beloglazov, Y. A. / Castelijns, R. / Crede, V. / Dutz, H. / Ehmanns, A. / Elsner, D. / Essig, K. / Ewald, R. / Fabry, I. / Fornet-Ponse, K. / Fuchs, M. /

Funke, C. / Gothe, R. / Gregor, R. / Gridnev, A. B. / Gutz, E. / Hoeffgen, S. / Hoffmeister, P. / Horn, I. / Junkersfeld, J. / Kalinowsky, H. / Kammer, S. / Kleber, V. / Klein, Frank / Klein, Friedrich / Klempt, E. / Konrad, M. / Kotulla, M. / Krusche, B. / Lang, M. / Langheinrich, J. / Loehner, H. / Lopatin, I. V. / Lotz, J. / Lugert, S. / Menze, D. / Messchendorp, J. G. / Metag, V. / Morales, C. / Mosel, U. / Nanova, M. / Novinski, D. V. / Novotny, R. / Ostrick, M. / Pant, L. M. / van Pee, H. / Pfeiffer, M. / Radkov, A. K. / Roy, A. / Schadmand, S. / Schmidt, C. / Schmieden, H. / Schoch, B. / Shende, S. / Sokhoyan, V. / Suele, A. / Sumachev, V. V. / Szczepanek, T. / Thoma, U. / Trnka, D. / Varma, R. / Walther, D. / Weinheimer, C. / Wendel, C.

2008

Abstract: Photoproduction of $\eta$ mesons off $^{12}$C, $^{40}$Ca, $^{93}$Nb, and $^{nat}$Pb nuclei has been measured with a tagged photon beam with energies between 0.6 and 2.2 GeV. The experiment was performed at the Bonn ELSA accelerator with the combined ... ...

Abstract	Photoproduction of $\eta$ mesons off $^{12}$C, $^{40}$Ca, $^{93}$Nb, and $^{nat}$Pb nuclei has been measured with a tagged photon beam with energies between 0.6 and 2.2 GeV. The experiment was performed at the Bonn ELSA accelerator with the combined setup of the Crystal Barrel and TAPS calorimeters. It aimed at the in-medium properties of the S$_{11}$(1535) nucleon resonance and the study of the absorption properties of nuclear matter for $\eta$ mesons. Careful consideration was given to contributions from $\eta\pi$ final states and secondary production mechanisms of $\eta$-mesons e.g. from inelastic $\pi N$ reactions of intermediate pions. The analysis of the mass number scaling shows that the nuclear absorption cross section $\sigma_{N\eta}$ for $\eta$ mesons is constant over a wide range of the $\eta$ momentum. The comparison of the excitation functions to data off the deuteron and to calculations in the framework of a BUU-model show no unexplained in-medium modifications of the S$_{11}$(1535). Comment: Accepted for publication in Eur. Phys. J. A
Keywords	Nuclear Experiment
Subject code	551
Publishing date	2008-10-15
Publishing country	us
Document type	Book ; Online
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