Literature DB >> 20383026

Preliminary neutron and X-ray crystallographic studies of equine cyanomethemoglobin.

A Y Kovalevsky1, S Zoe Fisher, Sean Seaver, Marat Mustyakimov, Narayanasami Sukumar, Paul Langan, Timothy C Mueser, B Leif Hanson.   

Abstract

Room-temperature and 100 K X-ray and room-temperature neutron diffraction data have been measured from equine cyanomethemoglobin to 1.7 A resolution using a home source, to 1.6 A resolution on NE-CAT at the Advanced Photon Source and to 2.0 A resolution on the PCS at Los Alamos Neutron Science Center, respectively. The cyanomethemoglobin is in the R state and preliminary room-temperature electron and neutron scattering density maps clearly show the protonation states of potential Bohr groups. Interestingly, a water molecule that is in the vicinity of the heme group and coordinated to the distal histidine appears to be expelled from this site in the low-temperature structure.

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Year:  2010        PMID： 20383026      PMCID： PMC2852348          DOI： 10.1107/S1744309110007840

Source DB:  PubMed          Journal:  Acta Crystallogr Sect F Struct Biol Cryst Commun        ISSN： 1744-3091


  18 in total

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  4 in total

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2.  Macromolecular neutron crystallography at the Protein Crystallography Station (PCS).

Authors:  Andrey Kovalevsky; Zoe Fisher; Hannah Johnson; Marat Mustyakimov; Mary Jo Waltman; Paul Langan
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2010-10-20

3.  Preliminary joint X-ray and neutron protein crystallographic studies of endoxylanase II from the fungus Trichoderma longibrachiatum.

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Journal:  Acta Crystallogr Sect F Struct Biol Cryst Commun       Date:  2011-01-27

4.  Visualizing the Bohr effect in hemoglobin: neutron structure of equine cyanomethemoglobin in the R state and comparison with human deoxyhemoglobin in the T state.

Authors:  Steven Dajnowicz; Sean Seaver; B Leif Hanson; S Zoë Fisher; Paul Langan; Andrey Y Kovalevsky; Timothy C Mueser
Journal:  Acta Crystallogr D Struct Biol       Date:  2016-06-28       Impact factor: 7.652
  4 in total

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