Cavada B, Araripe D, Silva I, Pinto-Junior V, Osterne V, Neco A, Laranjeira E, Lossio C, Correia J, Pires A, Assreuy A, Nascimento K. Structural studies and nociceptive activity of a native lectin from Platypodium elegans seeds (nPELa). International journal of biological macromolecules 2018