Schematic representation of the identified antigenic protein bands in salivary gland extracts from four Anopheles species. Secreted salivary proteins identified in antigenic bands (q.v., Additional file 5) are indicated with their corresponding species into squared brackets and their molecular weights. No protein was identified in antigenic bands represented by dotted lines. The percentage identity between two protein sequences was either retrieved from the in silico analysis (Additional file 2) or from analysis of “BLAST 2 Sequences”. Coloured numbers correspond to protein bands from the gel from the Figure 5C. MW, molecular weight; AGA, An. gambiae; AAR. An. arabiensis, AST, An. stephensi; AAL, An. albimanus.