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Updated: Jun 20, 2026
Characterization of Glycoproteins with the Immunoglobulin Fold by X-Ray Crystallography and Biophysical Techniques
Published on: July 5, 2018
Cloning, overexpression, purification, crystallization and preliminary X-ray diffraction analysis of
Somnath Mukherjee1, Samita Maity, Sobhan Roy
1Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India.
Abstract:
Glyceraldehyde-3-phosphate dehydrogenase from Antheraea mylitta (AmGAPDH) was cloned in pQE30 vector, overexpressed in Escherichia coli M15 (pREP4) cells and purified to homogeneity. The protein was crystallized using the hanging-drop vapour-diffusion method. The crystals belonged to the orthorhombic space group I222, with unit-cell parameters a = 85.81, b = 133.72, c = 220.37 A. X-ray diffraction data were collected and processed to a maximum resolution of 2.2 A. The presence of three molecules in the asymmetric unit gave a Matthews coefficient (V(M)) of 2.80 A(3) Da(-1), with a solvent content of 56.08%.
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