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FEBS Lett. 1999 Jul 23;455(3):344-8.

The two analogous phosphoglycerate mutases of Escherichia coli.

Author information

1
Department of Biochemistry, University of Dundee, UK.

Abstract

The glycolytic enzyme phosphoglycerate mutase exists in two evolutionarily unrelated forms. Vertebrates have only the 2,3-bisphosphoglycerate-dependent enzyme (dPGM), whilst higher plants have only the cofactor-independent enzyme (iPGM). Certain eubacteria possess genes encoding both enzymes, and their respective metabolic roles and activities are unclear. We have over-expressed, purified and characterised the two PGMs of Escherichia coli. Both are expressed at high levels, but dPGM has a 10-fold higher specific activity than iPGM. Differential inhibition by vanadate was observed. The presence of an integral manganese ion in iPGM was confirmed by EPR spectroscopy.

PMID:
10437801
DOI:
10.1016/s0014-5793(99)00910-2
[Indexed for MEDLINE]
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