Kinetic studies on photolysis-induced gelation of sickle cell hemoglobin suggest a new mechanism

FA Ferrone, J Hofrichter, HR Sunshine, WA Eaton - Biophysical journal, 1980 - cell.com
The kinetics of deoxyhemoglobin S gelation have been investigated using photolytic
dissociation of the carbon monoxide complex to initiate the process. Measurements over a …

Kinetics and mechanism of deoxyhemoglobin S gelation: a new approach to understanding sickle cell disease

J Hofrichter, PD Ross… - Proceedings of the …, 1974 - National Acad Sciences
We report the results of a kinetic investigation on the gelation of purified deoxyhemoglobin
S. Gelation was induced by raising the temperature and was monitored by measuring both …

Kinetics of sickle hemoglobin polymerization: I. Studies using temperature-jump and laser photolysis techniques

FA Ferrone, J Hofrichter, WA Eaton - Journal of molecular biology, 1985 - Elsevier
Using a combination of laser photolysis and temperature-jump techniques, the kinetics of
hemoglobin S polymerization have been studied over a wide range of delay times (10− 3 to …

Comparison of sickle cell hemoglobin gelation kinetics measured by NMR and optical methods

WA Eaton, J Hofrichter, PD Ross, RG Tschudin… - Biochemical and …, 1976 - Elsevier
We describe a technique for monitoring the kinetics of sickle cell hemoglobin gelation by
observing the change in the amplitude and linewidth of the water proton magnetic …

Thermodynamics of gelation of sickle cell deoxyhemoglobin

PD Ross, J Hofrichter, WA Eaton - Journal of Molecular Biology, 1977 - Elsevier
This paper describes the thermodynamic behavior of gels of deoxyhemoglobin S. The
solubility of the protein with respect to assembled hemoglobin fibers has been measured …

Homogeneous nucleation in sickle hemoglobin: stochastic measurements with a parallel method

Z Cao, FA Ferrone - Biophysical journal, 1997 - cell.com
The homogeneous nucleation rate for sickle hemoglobin polymerization has been
measured for concentrations from 3.9 to 4.9 mM and temperatures from 13 degrees C to 35 …

Gelation of sickle cell hemoglobin in mixtures with normal adult and fetal hemoglobins

HR Sunshine, J Hofrichter, WA Eaton - Journal of molecular biology, 1979 - Elsevier
We report the results of thermodynamic and kinetic studies on the gelation of mixtures of
sickle cell (S) deoxyhemoglobin with normal human adult (A) and fetal (F) …

Crystallization of sickle hemoglobin from gently agitated solutions—an alternative to gelation

JG Pumphrey, J Steinhardt - Journal of Molecular Biology, 1977 - Elsevier
A new, crystalline state of deoxygenated sickle hemoglobin is described which is formed
spontaneously in agitated concentrated hemoglobin S solutions under conditions otherwise …

Delay time of hemoglobin S polymerization prevents most cells from sickling in vivo

A Mozzarelli, J Hofrichter, WA Eaton - Science, 1987 - science.org
A laser photolysis technique has been developed to assess the quantitative significance of
the delay time of hemoglobin S gelation to the pathophysiology of sickle cell disease …

Calorimetric and optical characterization of sickle cell hemoglobin gelation

PD Ross, J Hofrichter, WA Eaton, J Hofrichter - Journal of Molecular Biology, 1975 - Elsevier
We have used two techniques to characterize the gelation of deoxyhemoglobin S, a high
sensitivity heat-flow calorimeter to measure the heat of gelation and a simple light …