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A Novel Protein Tightly Bound to Bacterial Magnetic Particles in Magnetospirillum magneticum Strain AMB-1*
- Atsushi Arakaki, J. Webb, T. Matsunaga
- Chemistry, MedicineThe Journal of Biological Chemistry
- 7 March 2003
Several low molecular mass proteins tightly bound to bacterial magnetite were obtained from Magnetospirillum magneticumstrain AMB-1 and showed common features in their amino acid sequences, which may be directly involved in biological magnetite crystal formation in magnetic bacteria.
The form of iron oxide deposits in thalassemic tissues varies between different groups of patients: a comparison between Thai beta-thalassemia/hemoglobin E patients and Australian beta-thalassemia…
- T. S. St. Pierre, W. Chua-anusorn, J. Webb, D. Macey, P. Pootrakul
- Chemistry, MedicineBiochimica et biophysica acta
- 1 July 1998
This study shows that the Australian beta-thalassemia patients had a higher fraction of their non-heme spleen iron in a goethite-like form than the Thai beta-halassemia/Hb E patients.
Formation of spherical iron(III) oxyhydroxide nanoparticles sterically stabilized by chitosan in aqueous solutions.
- P. Sipos, O. Berkesi, E. Tombácz, T. S. St. Pierre, J. Webb
- Chemistry, MedicineJournal of inorganic biochemistry
- 1 May 2003
The data support that Chit acts as steric stabilizer and inhibits the macroscopic aggregation of the subcolloidal FeOOH particles, thus the iron(III)-Chit interactions offer a simple and economic way to fabricate nanometric size FeOOh spheres, morphologically similar to the core of iron( III)-storage protein, ferritin.
Comparative mineralogy and geochemistry of hydrothermal iron‐rich crusts from the Pitcairn, Teahitia‐mehetia, and Macdonald hot spot areas of the S. W. pacific
Abstract Hydrothermal iron‐rich crusts have been recovered from a number of hot spot volcanos including Crough Seamount, Pitcairn Volcanos 2 and 1, Cyana Seamount, Teahitia, Moua Pihaa, and Macdonald…
Synthesis, Structure and Magnetic Properties of Ferritin Cores with Varying Composition and Degrees of Structural Order: Models for Iron Oxide Deposits in Iron-Overload Diseases
Iron chelators of the pyridoxal isonicotinoyl hydrazone class Part II. Formation constants with iron(III) and iron(II)
Formation constants for the iron(III) complexes of the orally effective iron chelator pyridoxal isonicotinoyl hydrazone (PIH) and three analogues: pyridoxal benzoyl hydrazone (PBH), 3-hydroxy-…
Iron chelation by pyridoxal isonicotinoyl hydrazone and analogues in hepatocytes in culture.
Pyridoxal benzoyl hydrazone, the most effective iron chelator, was also the most lipophilic, suggesting that access to cellular iron compartments as well as iron-binding affinity is important in effectiveIron chelation.
Iron chelators of the pyridoxal isonicotinoyl hydrazone class Part I. Ionisation characteristics of the ligands and their relevance to biological properties
The orally effective iron chelator, pyridoxal isonicotinoyl hydrazone (PIH), and five analogues, pyridoxal benzoyl hydrazone (PBH), pyridoxal p-methoxybenzoyl hydrazone ((PpMBH), pyridoxal…
Iron chelators of the pyridoxal isonicotinoyl hydrazone class
- D. Richardson, G. Hefter, P. M. May, J. Webb, E. Baker
- Chemistry, MedicineBiology of Metals
- 1 September 1989
Calculated values of the concentration of uncomplexed metal ion indicate that the selectivity of these ligands towards Fe(III) is comparable to that of the clinically used chelator desferrioxamine.
Iron levels and major iron binding proteins in the plasma of ammocoetes and adults of the southern hemisphere lamprey Geotria australis Gray.
Confirmation that plasma iron binding proteins were similar to ferritin in larvae and transferrin in adults was provided by pI values, Fe/protein ratios and electron microscopy.