Structure of glutaminyl cyclase from Drosophila melanogaster in space group I4.
Kolenko, P., Koch, B., Rahfeld, J.U., Schilling, S., Demuth, H.U., Stubbs, M.T.(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 358-361
- PubMed: 23545638 
- DOI: https://doi.org/10.1107/S1744309113005575
- Primary Citation of Related Structures:  
4FWU - PubMed Abstract: 
The structure of ligand-free glutaminyl cyclase (QC) from Drosophila melanogaster (DmQC) has been determined in a novel crystal form. The protein crystallized in space group I4, with unit-cell parameters a = b = 122.3, c = 72.7 Å. The crystal diffracted to a resolution of 2 Å at the home source. The structure was solved by molecular replacement and was refined to an R factor of 0.169. DmQC exhibits a typical α/β-hydrolase fold. The electron density of three monosaccharides could be localized. The accessibility of the active site will facilitate structural studies of novel inhibitor-binding modes.
Organizational Affiliation: 
Department of Physical Biochemistry, Institute of Biochemistry and Biotechnology, MLU, Kurt-Mothes-Strasse 3, 06120 Halle, Germany. petr.kolenko@gmail.com