Abstract
Dihydropyrimidine dehydrogenase catalyzes the first and rate-limiting reaction in pyrimidine catabolism. The enzyme contains one FMN, one FAD and four Fe-S clusters per subunit of 1025 amino acids as prosthetic groups. It is also the major determinant of bioavailability and toxicity of 5-fluorouracil, a chemotherapeutic agent widely used in the treatment of solid tumors. Crystals of this enzyme diffracting to at least 2.5 A have been obtained by the hanging-drop vapour-diffusion method and belong to space group P2(1) (unit-cell parameters a = 82.0, b = 159.3, c = 163.6 A, beta = 96.1 degrees ), with two homodimers per asymmetric unit.
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Schedule a callMore From: Acta Crystallographica Section D Biological Crystallography
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