Purification and Preliminary Crystallographic Studies of CutC, a Novel Copper Homeostasis Protein from Shigella flexneri
CutC is a novel copper homeostasis protein containing 248 amino acids. Here we report the cloning, expression, purification, crystallization and preliminary X-ray crystallographic studies of CutC from Shigella flexneri 2a. Purification of CutC and its selenomethionine (SeMet) derivate were done using immobilized metal ion affinity chromatography, size-exclusion and ion-exchange chromatography. The purified proteins were crystallized using the hanging drop vapor diffusion method. The diffraction data for the native and SeMet CutC, respectively, have been collected with resolution of 1.7 Å and 2.1 Å. They belong to the space group C2221 and similar cell dimension. The native protein crystals have cell parameters: a=75.3267, b=97.6718, c=132.6910.
Keywords: copper homeostasis protein; crystallization; cutc; preliminary crystallographic studies; purification; shigella flexneri
Document Type: Review Article
Affiliations: Center for Structural and Molecular Biology, Institute of biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang district, Beijing, 100101, People's Republic of China;
Publication date: 01 November 2005
- Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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