Abstract

The energy-transducing nicotinamide transhydrogenases (THs) of mammalian and bacteria are structurally related membrane-bound enzymes that catalyze the direct transfer of a hydride ion between NAD(H) and NADP(H) in a reaction coupled to transmembrane proton translocation. The NADPH produced by TH is to reduce H2O2, which is capable of causing oxidative damage to intramitochondrial DNA and proteins, and initiating lipid peroxidation. Therefore, in order to understand the proton translocation mechanism and the reaction catalyzed by these enzymes a detailed knowledge of their three dimensional structure is essential. Weakly diffracting, highly anisotropic and radiation sensitve crystals of the alfa-1 subunit of R. rubrum TH have been obtained. These crystals diifract only to 4 E resolution using in-house x-ray source, whereas, the same crystals diffract to 2.7 E on BL7-1.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001209-20
Application #
6119483
Study Section
Project Start
1999-03-01
Project End
2000-04-14
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
20
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
Stanford University
Department
Type
DUNS #
800771545
City
Stanford
State
CA
Country
United States
Zip Code
94305

  Publications

Vickers, Chelsea; Liu, Feng; Abe, Kento et al. (2018) Endo-fucoidan hydrolases from glycoside hydrolase family 107 (GH107) display structural and mechanistic similarities to ?-l-fucosidases from GH29. J Biol Chem 293:18296-18308
Nguyen, Phong T; Lai, Jeffrey Y; Lee, Allen T et al. (2018) Noncanonical role for the binding protein in substrate uptake by the MetNI methionine ATP Binding Cassette (ABC) transporter. Proc Natl Acad Sci U S A 115:E10596-E10604
Aleman, Fernando; Tzarum, Netanel; Kong, Leopold et al. (2018) Immunogenetic and structural analysis of a class of HCV broadly neutralizing antibodies and their precursors. Proc Natl Acad Sci U S A 115:7569-7574
Herrera, Nadia; Maksaev, Grigory; Haswell, Elizabeth S et al. (2018) Elucidating a role for the cytoplasmic domain in the Mycobacterium tuberculosis mechanosensitive channel of large conductance. Sci Rep 8:14566
Lal, Neeraj K; Nagalakshmi, Ugrappa; Hurlburt, Nicholas K et al. (2018) The Receptor-like Cytoplasmic Kinase BIK1 Localizes to the Nucleus and Regulates Defense Hormone Expression during Plant Innate Immunity. Cell Host Microbe 23:485-497.e5
Pluvinage, Benjamin; Grondin, Julie M; Amundsen, Carolyn et al. (2018) Molecular basis of an agarose metabolic pathway acquired by a human intestinal symbiont. Nat Commun 9:1043
Beyerlein, Kenneth R; Jönsson, H Olof; Alonso-Mori, Roberto et al. (2018) Ultrafast nonthermal heating of water initiated by an X-ray Free-Electron Laser. Proc Natl Acad Sci U S A 115:5652-5657
Yoshizawa, Takuya; Ali, Rustam; Jiou, Jenny et al. (2018) Nuclear Import Receptor Inhibits Phase Separation of FUS through Binding to Multiple Sites. Cell 173:693-705.e22
Guillaume, Joren; Wang, Jing; Janssens, Jonas et al. (2017) Galactosylsphingamides: new ?-GalCer analogues to probe the F'-pocket of CD1d. Sci Rep 7:4276
Ishigami, Izumi; Zatsepin, Nadia A; Hikita, Masahide et al. (2017) Crystal structure of CO-bound cytochrome c oxidase determined by serial femtosecond X-ray crystallography at room temperature. Proc Natl Acad Sci U S A 114:8011-8016

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