Isolation and characterization of cDNAs encoding imidazoleglycerolphosphate dehydratase from Arabidopsis thaliana
1994
Tada, S. | Volrath, S. | Guyer, D. | Scheidegger, A. | Ryals, J. | Ohta, D. | Ward, E.
cDNA clones encoding imidazoleglycerolphosphate dehydratase (IGPD; EC 4.2.1.19) from Arabidopsis thaliana were isolated by complementation of a bacterial auxotroph. The predicted primary translation product shared significant identity with the corresponding sequences from bacteria and fungi. As in yeast, the plant enzyme is monofunctional, lacking the histidinol phosphatase activity present in the Escherichia coli protein. IGPD mRNA was present in major organs at all developmental stages assayed. The Arabidopsis genome appears to contain two genes encoding this enzyme, based on DNA gel blot and polymerase chain reaction analysis.
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