A New Class of Glutamate Dehydrogenases (GDH)

@article{Miambres2000ANC,
  title={A New Class of Glutamate Dehydrogenases (GDH)},
  author={B. Mi{\~n}ambres and E. R. Olivera and R. Jensen and J. Luengo},
  journal={The Journal of Biological Chemistry},
  year={2000},
  volume={275},
  pages={39529 - 39542}
}
A new class of glutamate dehydrogenase (GDH) is reported. The GDH of Streptomyces clavuligerus was purified to homogeneity and characterized. It has a native molecular mass of 1,100 kDa and exists as an α6 oligomeric structure composed of 183-kDa subunits. GDH, which requires AMP as an essential activator, shows a maximal rate of catalysis in 100 mmphosphate buffer, pH 7.0, at 30 °C. Under these conditions, GDH displayed hyperbolic behavior toward ammonia (K m , 33 mm) and sigmoidal responses… Expand
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