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Title: Preliminary neutron diffraction analysis of challenging human manganese superoxide dismutase crystals

Journal Article · · Acta Crystallographica. Section F, Structural Biology Communications
 [1];  [2]; ORCiD logo [3]; ORCiD logo [3];  [1]
  1. Nebraska Medical Center, Omaha, NE (United States). Eppley Inst. for Research in Cancer and Allied Diseases, Dept. of Biochemistry and Molecular Biology
  2. Nebraska Medical Center, Omaha, NE (United States). Eppley Inst. for Research in Cancer and Allied Diseases
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biology and Soft Matter Division

Superoxide dismutases (SODs) are enzymes that protect against oxidative stress by dismutation of superoxide into oxygen and hydrogen peroxide through cyclic reduction and oxidation of the active-site metal. The complete enzymatic mechanisms of SODs are unknown since data on the positions of hydrogen are limited. Here, methods are presented for large crystal growth and neutron data collection of human manganese SOD (MnSOD) using perdeuteration and the MaNDi beamline at Oak Ridge National Laboratory. The crystal from which the human MnSOD data set was obtained is the crystal with the largest unit-cell edge (240 Å) from which data have been collectedvianeutron diffraction to sufficient resolution (2.30 Å) where hydrogen positions can be observed.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Aeronautics and Space Administration (NASA); National Institutes of Health (NIH)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1407982
Alternate ID(s):
OSTI ID: 1437709
Journal Information:
Acta Crystallographica. Section F, Structural Biology Communications, Journal Name: Acta Crystallographica. Section F, Structural Biology Communications Journal Issue: 4 Vol. 73; ISSN ACSFEN; ISSN 2053-230X
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

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Redox manipulation of the manganese metal in human manganese superoxide dismutase for neutron diffraction journal September 2018
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Neutron crystallographic study of heterotrimeric glutamine amidotransferase CAB journal February 2019
A Review of the Catalytic Mechanism of Human Manganese Superoxide Dismutase journal January 2018
Neutron Macromolecular Crystallography book January 2020
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