Fig. 1.

Immunodetection on Western blot using a crude granulocyte extract as antigenic substrate. Lane 1, polyclonal antibody against lactoferrin; lane 2, patient sample reacting with lactoferrin; lane 3, polyclonal antibody against bactericidal/permeability-increasing protein (BPI); lane 4, patient sample reacting with BPI; lane 5, healthy control sample; lane 6, polyclonal antibody against erythrocyte catalase; lane 7, polyclonal antibody against granulocyte catalase; lane 8, patient sample reacting with the 57/56-kD antigen; lane 9, MoAb against U937 enolase; lane 10, patient sample reacting with the 47-kD antigen.