Purification and partial characterization of a lectin from Caesalpinia tinctoria Domb, ex Dc fruits - Oliveira, Marli Lourdes de; Beltramini, Leila Maria; Simone, Salvatore Giovanni de; Brumano, Maria Helena Nasser; Lucca, Rosemeire Aparecida Silva; Nakaema, Marcelo Kiyoshi Kian; Pires, Christiano Vieira; Oliveira, Maria Goreti de Almeida (Brazilian Journal of Plant Physiology, 2003)