1yfe
From Proteopedia
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| , resolution 2.19Å | |||||||
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| Activity: | Fumarate hydratase, with EC number 4.2.1.2 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of apo fumarase C from Escherichia coli
Overview
Previous crystal structures of fumarase C from Escherichia coli have noted two occupied dicarboxylate-binding sites termed the active site and the B site. Here, the first known fumarase C structure is reported in which both sites are unoccupied by bound ligand. This so-called ;free' crystal form shows conservation of the active-site water in a similar orientation to that reported in other fumarase C crystal structures. More importantly, a shift of His129 has been observed at the B site. This new crystallographic information suggests the use of water as a permanent member of the active site and the use of an imidazole-imidazolium conversion to control access at the allosteric B site.
About this Structure
1YFE is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Structure of free fumarase C from Escherichia coli., Weaver T, Acta Crystallogr D Biol Crystallogr. 2005 Oct;61(Pt 10):1395-401. Epub, 2005 Sep 28. PMID:16204892
Page seeded by OCA on Thu Mar 20 15:22:09 2008
