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Absorption and magnetic circular dichroism spectra of nonequilibrium states of hemoglobin and its derivatives formed by reduction oxidased forms of hemoproteins by thermalysed electrons at 77 degrees K were studied. Mixtures of low spin and high spin ferroforms were observed for nonequilibrium hemoglobin and its complexes with inosithexaphosphate and fluorine. The content of the high spin form increasing as follows: hemoglobin, complex with inosithexaphosphate, complex with fluorine. Only low spin forms were found for cyanide and azide complexes of hemoglobin reduced at low temperature. The spectral differences of nonequilibrium low spin ferroforms were supposed to be due to the presence of different ligands in the coordination sphere of the heme iron. The alpha-band splitting was observed for the nonequilibrium imidazole complex of hemoglobin. This effect was explained by a lowe-ring of the active centre's symmetry. The temperature relaxation of all nonequilibrium systems was investigated.
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
January 1980,
Molekuliarnaia biologiia,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
January 1978,
Methods in enzymology,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
January 1979,
Molekuliarnaia biologiia,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
April 1973,
Biochemical and biophysical research communications,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
December 1976,
The Journal of biological chemistry,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
May 1977,
Journal of biochemistry,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
January 1991,
Methods in enzymology,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
June 1979,
Proceedings of the National Academy of Sciences of the United States of America,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
October 1978,
Biochemistry,
S N Magonov, and
R M Davydov, and
L A Bliumenfel'd, and
R O Vilu, and
A M Arutiunian
November 1975,
Journal of biochemistry,
