Salivary gland protein profiles among four Anopheles species. Salivary gland proteins collected from An. gambiae, An. arabiensis, An. stephensi and An. albimanus were separated on 12% SDS-PAGE gels and stained with Sypro Ruby. The Anopheles species, corresponding to each protein track, are indicated at the top of the gel. Standard molecular masses are indicated on the left side. (B) Densitometric protein profiles of salivary gland proteins from the four Anopheles species are presented. Species are indicated by the same colour at the top of each immunoblot profile. MW, molecular weight; kDa, kiloDalton; A.U., arbitrary units; Rf, relative front of migration.