Structure and catalytic mechanism of glucosamine 6-phosphate deaminase from Escherichia coli at 2.1 A resolution.
Oliva, G., Fontes, M.R., Garratt, R.C., Altamirano, M.M., Calcagno, M.L., Horjales, E.(1995) Structure 3: 1323-1332
- PubMed: 8747459 
- DOI: https://doi.org/10.1016/s0969-2126(01)00270-2
- Primary Citation of Related Structures:  
1DEA, 1HOR, 1HOT - PubMed Abstract: 
Glucosamine 6-phosphate deaminase from Escherichia coli is an allosteric hexameric enzyme which catalyzes the reversible conversion of D-glucosamine 6-phosphate into D-fructose 6-phosphate and ammonium ion and is activated by N-acetyl-D-glucosamine 6-phosphate. Mechanistically, it belongs to the group of aldoseketose isomerases, but its reaction also accomplishes a simultaneous amination/deamination. The determination of the structure of this protein provides fundamental knowledge for understanding its mode of action and the nature of allosteric conformational changes that regulate its function.
Organizational Affiliation: 
Instituto de Fisica de São Carlos, Universidade de São Paulo, Brazil.