The unusual dodecameric ferritin from Listeria innocua dissociates below pH 2.0.

@article{Chiaraluce2000TheUD,
  title={The unusual dodecameric ferritin from Listeria innocua dissociates below pH 2.0.},
  author={Roberta Chiaraluce and Valerio Consalvi and Stefano Cavallo and Andrea Ilari and Simonetta Stefanini and Emilia Chiancone},
  journal={European journal of biochemistry},
  year={2000},
  volume={267 18},
  pages={
          5733-41
        }
}
The stability of the dodecameric Listeria innocua ferritin at low pH values has been investigated by spectroscopic methods and size-exclusion chromatography. The dodecamer is extremely stable in comparison to the classic ferritin tetracosamer and preserves its quaternary assembly at pH 2.0, despite an altered tertiary structure. Below pH 2.0, dissociation into dimers occurs and is paralleled by the complete loss of tertiary structure and a significant decrease in secondary structure elements… CONTINUE READING

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