Crystallization and preliminary X-ray diffraction of malate dehydrogenase from Plasmodium falciparum

Autor(es)

Wrenger, Carsten ; Mueller, Ingrid B. ; Butzloff, Sabine ; Jordanova, Rositsa ; Lunev, Sergey ; Groves, Matthew R.

• Tipo de documento: Artigo Científico
• Fonte: ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS; v. 68, p. 4-pg., 2012-06-01.

Resumo

The expression, purification, crystallization and preliminary X-ray diffraction characterization of malate dehydrogenase (MDH) from the malarial parasite Plasmodium falciparum (PfMDH) are reported. In order to gain a deeper understanding of the function and role of PfMDH, the protein was purified to homogeneity. The purified protein crystallized in space group P1, with unit-cell parameters a = 72, b = 157, c = 159 angstrom, a = 105, beta = 101, ? = 95 degrees. The resulting crystals diffracted to a maximal resolution of 2.24 angstrom and the structure has been solved by molecular replacement, with 16 monomers in the asymmetric unit. The 16 monomers are arranged into four independent tetramers, in agreement with previous reports demonstrating the tetrameric solution state of PfMDH. The X-ray structure of PfMDH is expected to clarify the differences in catalysis by PfMDH compared with other MDH family members and to provide a basis for the structure-based design of specific PfMDH inhibitors as well as general MDH inhibitors. (AU)

• Processo FAPESP: 09/54325-2 - Elucidation of vitamin B metabolism in the human malaria parasite Plasmodium falciparum and their validation as a target for chemotherapy
• Beneficiário: Carsten Wrenger
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores