Download MendeleyCrystallization and structural analysis of GADPH from Spinacia oleracea in a new form.
Camara-Artigas, A., Hirasawa, M., Knaff, D.B., Wang, M., Allen, J.P.(2006) Acta Crystallogr Sect F Struct Biol Cryst Commun 62: 1087-1092
- PubMed: 17077485
- DOI: https://doi.org/10.1107/S174430910604200X
- Primary Citation of Related Structures:
2HKI - PubMed Abstract:
Two crystalline forms of GADPH (D-glyceraldehyde-3-phosphate dehydrogenase) from Spinacia oleracea were obtained using sitting-drop vapor diffusion. Despite the very low concentration of GADPH in the solutions, two crystalline forms were obtained, one of which was the previously reported C222 space group with unit-cell parameters a = 155.3, b = 181.7, c = 107.6 A and the other of which belonged to a new space group I4(1)22, with unit-cell parameters a = b = 120.9, c = 154.5 A. Diffraction data were measured from both native and derivatives, yielding structures at a resolution limit of 3.0 A. Differences at the NAD(+)/NADP(+)-binding site seen in these structures compared with the previously reported structure with bound coenzyme suggest that conformational changes associated with pyridine-nucleotide binding may play a role in the regulation of this enzyme.
Organizational Affiliation:
Departamento Química-Física, Bioquímica y Química Inorgánica, Universidad de Almería, Carretera Sacramento, Almería 04120, Spain.
