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Copper-zinc superoxide dismutase metal substitutions

Cobalt has recently been used as an ESR active substitute in zinc metalloenzymes. Whilst liquid helium temperatures may be needed and theoretical aspects of the spectra are not yet as well understood, cobalt has two important advantages over copper as a metal substitute, namely that many cobalt derivatives show some enzymic activity (e.g. cobalt in carbonic anhydrase, alkaline phosphatase and superoxide dismutase) and that g values and hyperfine splitting are more sensitive to ligand environment, particularly when low spin. ESR data have been reported for cobalt substituted thermolysin, carboxypeptidase A, procarboxypeptidase A and alkaline phosphatase [51]. These are all high spin complexes. Cobalt carbonic anhydrase has been prepared and reacted with cyanide [52]. In... [Pg.215]


See other pages where Copper-zinc superoxide dismutase metal substitutions is mentioned: [Pg.757]    [Pg.406]    [Pg.104]    [Pg.382]    [Pg.200]    [Pg.357]    [Pg.2984]    [Pg.4074]    [Pg.796]    [Pg.285]    [Pg.340]   
See also in sourсe #XX -- [ Pg.152 , Pg.186 , Pg.187 , Pg.188 , Pg.189 , Pg.190 ]




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Copper metalization

Copper metallization

Copper superoxide dismutase

Copper-zinc

Dismutase

Metal substituted

Metal substitution

Metal substitutional

Metal superoxides

Metallic substitutions

Metallic zinc

Metals copper

Superoxide dismutase

Zinc metal

Zinc-Superoxide Dismutase

Zinc-substituted

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