Dynamics of the iron-containing core in crystals of the iron-storage protein, ferritin, through Mössbauer spectroscopy

S. G. Cohen*, E. R. Bauminger, I. Nowik, S. Ofer, J. Yariv

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Fe57 γ-ray resonance-absorption spectra in crystals of the iron-storage protein, ferritin, display above 265°K, in addition to a normal quadrupole doublet, wide Lorentzian wings extending to velocities of ± 2 cm/sec. The results are interpreted in terms of the dynamics of the iron-containing core of the protein, undergoing bounded diffusive motion within a "cage," characterized by a jump probability per unit time of about 0.5×108 sec-1 and a mean-square displacement of about 4.8×10-22 at 298°K.

Original languageEnglish
Pages (from-to)1244-1248
Number of pages5
JournalPhysical Review Letters
Volume46
Issue number18
DOIs
StatePublished - 1981

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