Literature DB >> 23093745

X-ray-induced photo-chemistry and X-ray absorption spectroscopy of biological samples.

Graham N George1, Ingrid J Pickering, M Jake Pushie, Kurt Nienaber, Mark J Hackett, Isabella Ascone, Britt Hedman, Keith O Hodgson, Jade B Aitken, Aviva Levina, Christopher Glover, Peter A Lay.   

Abstract

As synchrotron light sources and optics deliver greater photon flux on samples, X-ray-induced photo-chemistry is increasingly encountered in X-ray absorption spectroscopy (XAS) experiments. The resulting problems are particularly pronounced for biological XAS experiments. This is because biological samples are very often quite dilute and therefore require signal averaging to achieve adequate signal-to-noise ratios, with correspondingly greater exposures to the X-ray beam. This paper reviews the origins of photo-reduction and photo-oxidation, the impact that they can have on active site structure, and the methods that can be used to provide relief from X-ray-induced photo-chemical artifacts.

Mesh：

Year:  2012        PMID： 23093745      PMCID： PMC3480274          DOI： 10.1107/S090904951203943X

Source DB:  PubMed          Journal:  J Synchrotron Radiat        ISSN： 0909-0495            Impact factor:   2.616


  49 in total

1.  Structures of the superoxide reductase from Pyrococcus furiosus in the oxidized and reduced states.

Authors:  A P Yeh; Y Hu; F E Jenney; M W Adams; D C Rees
Journal:  Biochemistry       Date:  2000-03-14       Impact factor: 3.162

2.  Imaging metals in proteins by combining electrophoresis with rapid x-ray fluorescence mapping.

Authors:  Lydia Finney; Yasmin Chishti; Tripti Khare; Carol Giometti; Aviva Levina; Peter A Lay; Stefan Vogt
Journal:  ACS Chem Biol       Date:  2010-06-18       Impact factor: 5.100

3.  Integrated instrumentation for combined polarized single-crystal XAS and diffraction data acquisition for biological applications.

Authors:  Matthew J Latimer; Kazuki Ito; Scott E McPhillips; Britt Hedman
Journal:  J Synchrotron Radiat       Date:  2004-12-23       Impact factor: 2.616

4.  Reinvestigation of the method used to map the electronic structure of blue copper proteins by NMR relaxation.

Authors:  D Flemming Hansen; Serge I Gorelsky; Ritimukta Sarangi; Keith O Hodgson; Britt Hedman; Hans E M Christensen; Edward I Solomon; Jens J Led
Journal:  J Biol Inorg Chem       Date:  2006-01-24       Impact factor: 3.358

5.  X-ray absorption and EPR spectroscopic studies of the biotransformations of chromium(VI) in mammalian cells. Is chromodulin an artifact of isolation methods?

Authors:  Aviva Levina; Hugh H Harris; Peter A Lay
Journal:  J Am Chem Soc       Date:  2007-02-07       Impact factor: 15.419

6.  Spectroscopic and density functional studies of the red copper site in nitrosocyanin: role of the protein in determining active site geometric and electronic structure.

Authors:  Lipika Basumallick; Ritimukta Sarangi; Serena DeBeer George; Brad Elmore; Alan B Hooper; Britt Hedman; Keith O Hodgson; Edward I Solomon
Journal:  J Am Chem Soc       Date:  2005-03-16       Impact factor: 15.419

7.  High-resolution crystal structures and spectroscopy of native and compound I cytochrome c peroxidase.

Authors:  Christopher A Bonagura; B Bhaskar; Hideaki Shimizu; Huiying Li; M Sundaramoorthy; Duncan E McRee; David B Goodin; Thomas L Poulos
Journal:  Biochemistry       Date:  2003-05-20       Impact factor: 3.162

8.  X-ray absorption spectroscopy of oriented cytochrome oxidase.

Authors:  G N George; S P Cramer; T G Frey; R C Prince
Journal:  Biochim Biophys Acta       Date:  1993-05-06

9.  Reactivity of chromium(III) nutritional supplements in biological media: an X-ray absorption spectroscopic study.

Authors:  Annie Nguyen; Irma Mulyani; Aviva Levina; Peter A Lay
Journal:  Inorg Chem       Date:  2008-04-23       Impact factor: 5.165

10.  Room-temperature scavengers for macromolecular crystallography: increased lifetimes and modified dose dependence of the intensity decay.

Authors:  Adam I Barker; Robert J Southworth-Davies; Karthik S Paithankar; Ian Carmichael; Elspeth F Garman
Journal:  J Synchrotron Radiat       Date:  2009-02-25       Impact factor: 2.616
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  24 in total

1.  X-ray absorption spectroscopic investigation of the electronic structure differences in solution and crystalline oxyhemoglobin.

Authors:  Samuel A Wilson; Evan Green; Irimpan I Mathews; Maurizio Benfatto; Keith O Hodgson; Britt Hedman; Ritimukta Sarangi
Journal:  Proc Natl Acad Sci U S A       Date:  2013-09-23       Impact factor: 11.205

2.  Combined EXAFS and DFT structure calculations provide structural insights into the 1:1 multi-histidine complexes of Cu(II) , Cu(I) , and Zn(II) with the tandem octarepeats of the mammalian prion protein.

Authors:  M Jake Pushie; Kurt H Nienaber; Alex McDonald; Glenn L Millhauser; Graham N George
Journal:  Chemistry       Date:  2014-07-07       Impact factor: 5.236

Review 3.  Elemental and chemically specific X-ray fluorescence imaging of biological systems.

Authors:  M Jake Pushie; Ingrid J Pickering; Malgorzata Korbas; Mark J Hackett; Graham N George
Journal:  Chem Rev       Date:  2014-08-07       Impact factor: 60.622

4.  Copper(II) Binding to PBT2 Differs from That of Other 8-Hydroxyquinoline Chelators: Implications for the Treatment of Neurodegenerative Protein Misfolding Diseases.

Authors:  Kelly L Summers; Graham P Roseman; George J Sopasis; Glenn L Millhauser; Hugh H Harris; Ingrid J Pickering; Graham N George
Journal:  Inorg Chem       Date:  2020-11-23       Impact factor: 5.165

5.  Cobalt Kβ valence-to-core X-ray emission spectroscopy: a study of low-spin octahedral cobalt(iii) complexes.

Authors:  Katarina Schwalenstocker; Jaya Paudel; Alexander W Kohn; Chao Dong; Katherine M Van Heuvelen; Erik R Farquhar; Feifei Li
Journal:  Dalton Trans       Date:  2016-08-17       Impact factor: 4.390

6.  The role of metal ions in X-ray-induced photochemistry.

Authors:  V Stumpf; K Gokhberg; L S Cederbaum
Journal:  Nat Chem       Date:  2016-01-11       Impact factor: 24.427

7.  Synchrotron X-radiolysis of l-cysteine at the sulfur K-edge: Sulfurous products, experimental surprises, and dioxygen as an oxidoreductant.

Authors:  Patrick Frank; Ritimukta Sarangi; Britt Hedman; Keith O Hodgson
Journal:  J Chem Phys       Date:  2019-03-14       Impact factor: 3.488

8.  New insights into metal interactions with the prion protein: EXAFS analysis and structure calculations of copper binding to a single octarepeat from the prion protein.

Authors:  Alex McDonald; M Jake Pushie; Glenn L Millhauser; Graham N George
Journal:  J Phys Chem B       Date:  2013-10-30       Impact factor: 2.991

9.  α-Hemoglobin-stabilizing protein (AHSP) perturbs the proximal heme pocket of oxy-α-hemoglobin and weakens the iron-oxygen bond.

Authors:  Claire F Dickson; Anne M Rich; William M H D'Avigdor; Daniel A T Collins; Jason A Lowry; Todd L Mollan; Eugene Khandros; John S Olson; Mitchell J Weiss; Joel P Mackay; Peter A Lay; David A Gell
Journal:  J Biol Chem       Date:  2013-05-21       Impact factor: 5.157

10.  Biological sulfur in the blood cells of Ascidia ceratodes: XAS spectroscopy and a cellular-enzymatic hypothesis for vanadium reduction in the ascidians.

Authors:  Patrick Frank; Robert M K Carlson; Elaine J Carlson; Britt Hedman; Keith O Hodgson
Journal:  J Inorg Biochem       Date:  2020-01-07       Impact factor: 4.155
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