Download MendeleyHigh-Resolution Structure of an Atypical [Alpha]-Phosphoglucomutase Related to Eukaryotic Phosphomannomutases
Nogly, P., Matias, P.M., De Rosa, M., Castro, R., Santos, H., Neves, A.R., Archer, M.(2013) Acta Crystallogr D Biol Crystallogr 69: 2008
- PubMed: 24100319
- DOI: https://doi.org/10.1107/S0907444913017046
- Primary Citation of Related Structures:
4BND - PubMed Abstract:
The first structure of a bacterial α-phosphoglucomutase with an overall fold similar to eukaryotic phosphomannomutases is reported. Unlike most α-phosphoglucomutases within the α-D-phosphohexomutase superfamily, it belongs to subclass IIb of the haloacid dehalogenase superfamily (HADSF). It catalyzes the reversible conversion of α-glucose 1-phosphate to glucose 6-phosphate. The crystal structure of α-phosphoglucomutase from Lactococcus lactis (APGM) was determined at 1.5 Å resolution and contains a sulfate and a glycerol bound at the enzyme active site that partially mimic the substrate. A dimeric form of APGM is present in the crystal and in solution, an arrangement that may be functionally relevant. The catalytic mechanism of APGM and its strict specificity towards α-glucose 1-phosphate are discussed.
Organizational Affiliation:
Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa (ITQB-UNL), 2780-157 Oeiras, Portugal.
