Structure-function relations in hemoglobin as determined by x-ray absorption spectroscopy.

@article{Eisenberger1976StructurefunctionRI,
  title={Structure-function relations in hemoglobin as determined by x-ray absorption spectroscopy.},
  author={Patrick Eisenberger and Robert G. Shulman and George S. Brown and Seiichiro Ogawa},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1976},
  volume={73 2},
  pages={491-5}
}
Conclusions concerning the structure around the iron atom in oxy- and carbonmonoxyhemoglobin have been obtained by fluorescent x-ray absorption studies. The bis-imidazole heme complex was used as a model system of known structure. The ligated forms of hemoglobin, and cytochrome c at high pH, gave spectra which were very similar to the bis-imidazole complex, where the average Fe-N bond distance is known to be 1.98 A. By comparison it was possible to determine that the average Fe-N bond distances… CONTINUE READING
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