Conformational study of a fragment from the sixth helix of the luteinizing hormone/chorionic gonadotropin receptor and of a mutant associated with familial male precocious puberty - Casallanovo, F; Pertinhez, Thelma de Aguiar; Abell, A N; Segaloff, D l; Schreier, Shirley (Reunião Anual da Sociedade Brasileira de Bioquímica e Biologia Molecular, 1998)