Immunoblot of the total protein extracts from Ae. aegypti ovaries following a blood meal. Top panel, coomassie stained gel of total protein extracts. The positions of marker proteins are indicated by arrows with the Mr of each listed. Middle panel, control immunoblot reacted only with the secondary antibody. Bottom panel, immunoblot reacted with both primary (anti- AaegOBP45) and secondary antibody sera. The arrowhead indicates the immunoreactive peptides.