Evidence for two types of binding sites in cadmium metallothionein determined by perturbed angular correlation of .gamma.-rays

1982 ◽  
Vol 104 (11) ◽  
pp. 3236-3238 ◽  
Author(s):  
Milan Vasak ◽  
Rogert Bauer
Keyword(s):  
Angular Correlation ◽  
Gamma Rays ◽  
Binding Sites ◽  
Perturbed Angular Correlation

Perturbed angular correlation spectroscopy and its application to metal sites in proteins: possibilities and limitations

1985 ◽  
Vol 18 (1) ◽  
pp. 1-64 ◽  
Author(s):  
Rogert Bauer
Keyword(s):  
Angular Correlation ◽  
Gamma Rays ◽  
Perturbed Angular Correlation ◽  
Correlation Spectroscopy ◽  
Present Review ◽  
Coordination Geometry ◽  
Pac Spectroscopy ◽  
Perturbed Angular Correlation Spectroscopy ◽  
Zinc Enzymes ◽  
Metal Site

The present review describes the methodology of perturbed angular correlation of gamma rays (PAC) applied to biological problems. A large part of the present review focuses on the application of PAC spectroscopy to the study of coordination geometry for the metal site in zinc enzymes. Applications to conformation and dynamics of biomolecules and the use of the method to identify the intracellular sites of either metals or labelled proteins are also discussed.

Jump Frequency of Cd Tracer Atoms in β-Mn

2005 ◽  
Vol 237-240 ◽  
pp. 396-401 ◽  
Author(s):  
Matthew O. Zacate ◽  
Gary S. Collins
Keyword(s):  
Angular Correlation ◽  
Gamma Rays ◽  
Polymorphic Transformation ◽  
Perturbed Angular Correlation ◽  
Activation Enthalpy ◽  
Jump Frequency ◽  
Quadrupole Relaxation ◽  
Kinetics Of

The jump frequency of Cd tracer atoms in pure and Al-doped b-Mn was determined from measurements of quadrupole relaxation using the method of perturbed angular correlation of gamma rays. The jump frequency of Cd in b-Mn containing about 4.5 at.% Al had an activation enthalpy of 0.67(3) eV. In pure b-Mn at 950 K, the jump frequency was a factor about 8 larger than the value of 9.2 MHz in the alloy. Information was also obtained about the sluggish kinetics of the a-Mn to b-Mn polymorphic transformation.

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