Influence of pH on the partition of Glucose-6-phosphate dehydrogenase and hexokinase in aqueous two-phase system - Silva, Daniel Pereira da; Pontes, Marcela Zanella Ribeiro; Souza, Maria Aparecida de; Vitolo, Michele; Silva, João Batista de Almeida e; Pessoa Junior, Adalberto (Brazilian Journal of Microbiology, 2002)