The crystal structure of GMP synthetase serves as a prototype for two families of metabolic enzymes. The Class I glutamine amidotransferase domain of GMP synthetase is found in related enzymes of the purine, pyrimidine, tryptophan, arginine, histidine and folic acid biosynthetic pathways ...
The crystal structure of GMP synthetase serves as a prototype for two families of metabolic enzymes. The Class I glutamine amidotransferase domain of GMP synthetase is found in related enzymes of the purine, pyrimidine, tryptophan, arginine, histidine and folic acid biosynthetic pathways. This domain includes a conserved Cys-His-Glu triad and is representative of a new family of enzymes that use a catalytic triad for enzymatic hydrolysis. The structure and conserved sequence fingerprint of the nucleotide-binding site in a second domain of GMP synthetase are common to a family of ATP pyrophosphatases, including NAD synthetase, asparagine synthetase and argininosuccinate synthetase.
Related Citations:
Preliminary X-Ray Analysis of Escherichia Coli Gmp Synthetase: Determination of Anomalous Scattering Factors for a Cysteinyl Mercury Derivative Tesmer, J.J.G., Stemmler, T.L., Penner-Hahn, J.E., Davisson, V.J., Smith, J.L. (1994) Proteins 18: 394
Organizational Affiliation:
Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA.
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