Fig. 6. Immunoblots demonstrating that CTLP1 is secreted and proteolytically processed. Proteins from CTLP1-expressing bacterial cells (1), the gut contents (2) and the anterior midgut (3) were separated by SDS-PAGE, blotted onto nitrocellulose and stained with monospecific antibodies to CTLP1. Standard proteins with molecular masses indicated in kDa are also shown (S).