Uri Shani, Tomer Kol, et al.
SPIE Medical Imaging 2004
Recent magnetic studies have shown that in the pH range 1 to 11 the bacterial heme protein ferricytochrome c′ can undergo reversible transitions between various pure high-spin and quantum mechanically mixed (intermediate and high)-spin protein states. The EPR data presented here extend the recent work to high alkaline pH and show that above pH 11.6 reversible transitions occur between various pure high-spin and pure low-spin protein states. The new data and the previous magnetic studies of the protein are discussed in the context of the entatic nature of the iron-porphyrin complex in ferricytochrome c′. EPR data are also provided concerning an anomalous, but reversible, transition to a protein state with reduced heme iron, triggered by freezing and thawing at physiological pH. © 1975.
Uri Shani, Tomer Kol, et al.
SPIE Medical Imaging 2004
José Armando Ahued Ortega, Jorge Gerardo Morales Velazquez, et al.
IHI 2010
Bo Wen, Julia Liu, et al.
DREAM 2024
J.F. Ziegler
Nuclear Instruments and Methods