1uqr
From Proteopedia
TYPE II 3-DEHYDROQUINATE DEHYDRATASE (DHQASE) FROM ACTINOBACILLUS PLEUROPNEUMONIAE
Overview
The structure of the type II dehydroquinate dehydratase (DHQase) from Actinobacillus pleuropneumoniae, the third enzyme of the shikimate pathway, has been determined. Crystals diffracting to 1.7 A were obtained in space and on earth using the counter-diffusion technique. The structure was solved using molecular replacement and refined to high resolution. The overall structure of the dodecameric enzyme is described and compared with structures of DHQases from other bacteria. DHQases contain a flexible loop that presumably closes over the active site upon substrate binding. The enzyme can exist in an open or closed conformation. The present structure displays the open conformation, with a sulfate anion bound in the active site. The availability of this structure opens a route to structure-based antibiotics targetting this pathogenic bacterium.
About this Structure
1UQR is a Single protein structure of sequence from Actinobacillus pleuropneumoniae. Full crystallographic information is available from OCA.
Reference
Structural study of the type II 3-dehydroquinate dehydratase from Actinobacillus pleuropneumoniae., Maes D, Gonzalez-Ramirez LA, Lopez-Jaramillo J, Yu B, De Bondt H, Zegers I, Afonina E, Garcia-Ruiz JM, Gulnik S, Acta Crystallogr D Biol Crystallogr. 2004 Mar;60(Pt 3):463-71. Epub 2004, Feb 25. PMID:14993670 Page seeded by OCA on Sat May 3 11:33:39 2008
