Turkish Journal of Chemistry, Vol.21, No.2, 134-138, 1997
Electron spin resonance studies on cobalt carbonic anhydrase-substrate complexes
The native zinc atom of bovine erythrocyte carbonic anhydrase purified by affinity choromatography was removed by dialysis against pyridine 2,6-dicarboxylic acid. Cobalt carbonic anhydrase was prepared from the zinc-free apoenzyme. The binding conditions of CO2 and p-nitrophenylacetate to cobalt carbonic anhydrase were investigated by electron spin resonance at different pH levels.